1623 lines
40 KiB
HTML
Executable File
1623 lines
40 KiB
HTML
Executable File
|
||
<!doctype html>
|
||
<html lang="en" class="no-js">
|
||
<head>
|
||
|
||
<meta charset="utf-8">
|
||
<meta name="viewport" content="width=device-width,initial-scale=1">
|
||
|
||
|
||
|
||
|
||
<link rel="prev" href="../SSA/">
|
||
|
||
|
||
<link rel="next" href="../../acf_analysis/">
|
||
|
||
|
||
<link rel="icon" href="../../assets/artemis_icon.ico">
|
||
<meta name="generator" content="mkdocs-1.6.1, mkdocs-material-9.5.42">
|
||
|
||
|
||
|
||
<title>Sun Imagers - ARTEMIS</title>
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="../../assets/stylesheets/main.0253249f.min.css">
|
||
|
||
|
||
<link rel="stylesheet" href="../../assets/stylesheets/palette.06af60db.min.css">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
|
||
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
|
||
<style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="https://unpkg.com/katex@0/dist/katex.min.css">
|
||
|
||
<script>__md_scope=new URL("../..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</head>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="black" data-md-color-accent="indigo">
|
||
|
||
|
||
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
|
||
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
|
||
<label class="md-overlay" for="__drawer"></label>
|
||
<div data-md-component="skip">
|
||
|
||
|
||
<a href="#sun-imagers" class="md-skip">
|
||
Skip to content
|
||
</a>
|
||
|
||
</div>
|
||
<div data-md-component="announce">
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<header class="md-header md-header--shadow" data-md-component="header">
|
||
<nav class="md-header__inner md-grid" aria-label="Header">
|
||
<a href="../.." title="ARTEMIS" class="md-header__button md-logo" aria-label="ARTEMIS" data-md-component="logo">
|
||
|
||
<img src="../../assets/logo_small_white.svg" alt="logo">
|
||
|
||
</a>
|
||
<label class="md-header__button md-icon" for="__drawer">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg>
|
||
</label>
|
||
<div class="md-header__title" data-md-component="header-title">
|
||
<div class="md-header__ellipsis">
|
||
<div class="md-header__topic">
|
||
<span class="md-ellipsis">
|
||
ARTEMIS
|
||
</span>
|
||
</div>
|
||
<div class="md-header__topic" data-md-component="header-topic">
|
||
<span class="md-ellipsis">
|
||
|
||
Sun Imagers
|
||
|
||
</span>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
<form class="md-header__option" data-md-component="palette">
|
||
|
||
|
||
|
||
|
||
<input class="md-option" data-md-color-media="" data-md-color-scheme="default" data-md-color-primary="black" data-md-color-accent="indigo" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_0">
|
||
|
||
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_1" hidden>
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2a7 7 0 0 0-7 7c0 2.38 1.19 4.47 3 5.74V17a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1v-2.26c1.81-1.27 3-3.36 3-5.74a7 7 0 0 0-7-7M9 21a1 1 0 0 0 1 1h4a1 1 0 0 0 1-1v-1H9z"/></svg>
|
||
</label>
|
||
|
||
|
||
|
||
|
||
|
||
<input class="md-option" data-md-color-media="" data-md-color-scheme="slate" data-md-color-primary="black" data-md-color-accent="indigo" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_1">
|
||
|
||
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_0" hidden>
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2a7 7 0 0 1 7 7c0 2.38-1.19 4.47-3 5.74V17a1 1 0 0 1-1 1H9a1 1 0 0 1-1-1v-2.26C6.19 13.47 5 11.38 5 9a7 7 0 0 1 7-7M9 21v-1h6v1a1 1 0 0 1-1 1h-4a1 1 0 0 1-1-1m3-17a5 5 0 0 0-5 5c0 2.05 1.23 3.81 3 4.58V16h4v-2.42c1.77-.77 3-2.53 3-4.58a5 5 0 0 0-5-5"/></svg>
|
||
</label>
|
||
|
||
|
||
</form>
|
||
|
||
|
||
|
||
<script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
|
||
|
||
|
||
|
||
<label class="md-header__button md-icon" for="__search">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
|
||
</label>
|
||
<div class="md-search" data-md-component="search" role="dialog">
|
||
<label class="md-search__overlay" for="__search"></label>
|
||
<div class="md-search__inner" role="search">
|
||
<form class="md-search__form" name="search">
|
||
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
|
||
<label class="md-search__icon md-icon" for="__search">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
|
||
</label>
|
||
<nav class="md-search__options" aria-label="Search">
|
||
|
||
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
|
||
</button>
|
||
</nav>
|
||
|
||
</form>
|
||
<div class="md-search__output">
|
||
<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
|
||
<div class="md-search-result" data-md-component="search-result">
|
||
<div class="md-search-result__meta">
|
||
Initializing search
|
||
</div>
|
||
<ol class="md-search-result__list" role="presentation"></ol>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
<div class="md-header__source">
|
||
<a href="https://github.com/AresValley/Artemis" title="Go to repository" class="md-source" data-md-component="source">
|
||
<div class="md-source__icon md-icon">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81"/></svg>
|
||
</div>
|
||
<div class="md-source__repository">
|
||
GitHub
|
||
</div>
|
||
</a>
|
||
</div>
|
||
|
||
</nav>
|
||
|
||
</header>
|
||
|
||
<div class="md-container" data-md-component="container">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<main class="md-main" data-md-component="main">
|
||
<div class="md-main__inner md-grid">
|
||
|
||
|
||
|
||
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
||
<div class="md-sidebar__scrollwrap">
|
||
<div class="md-sidebar__inner">
|
||
|
||
|
||
|
||
|
||
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
|
||
<label class="md-nav__title" for="__drawer">
|
||
<a href="../.." title="ARTEMIS" class="md-nav__button md-logo" aria-label="ARTEMIS" data-md-component="logo">
|
||
|
||
<img src="../../assets/logo_small_white.svg" alt="logo">
|
||
|
||
</a>
|
||
ARTEMIS
|
||
</label>
|
||
|
||
<div class="md-nav__source">
|
||
<a href="https://github.com/AresValley/Artemis" title="Go to repository" class="md-source" data-md-component="source">
|
||
<div class="md-source__icon md-icon">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81"/></svg>
|
||
</div>
|
||
<div class="md-source__repository">
|
||
GitHub
|
||
</div>
|
||
</a>
|
||
</div>
|
||
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../.." class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Welcome
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Getting Started
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_2">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Getting Started
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../installation/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Installation
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../run_from_source/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Run from source
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../build_package/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Build Package
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../basic_operations/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Basic Operations
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" >
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="0">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Database
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_4">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Database
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_overview/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Overview
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_2" >
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_4_2" id="__nav_4_2_label" tabindex="0">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Structure
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_2_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_4_2">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Structure
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_info/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Info
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_signals/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Signals
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_frequency/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Frequency
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_bandwidth/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Bandwidth
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_modulation/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Modulation
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_mode/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Mode
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_location/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Location
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_category/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Category
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_cat_label/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Category Label
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/db_acf/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
ACF
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../database/sigid/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
SigID
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" checked>
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Space Weather
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="true">
|
||
<label class="md-nav__title" for="__nav_5">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Space Weather
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../current/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Current
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../forecasts/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Forecasts
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../drap/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
DRAP
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../aurora/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Aurora
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../SSA/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
SSA
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--active">
|
||
|
||
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__link md-nav__link--active" for="__toc">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Sun Imagers
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<a href="./" class="md-nav__link md-nav__link--active">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Sun Imagers
|
||
</span>
|
||
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Table of contents
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#atmospheric-imagery-assembly" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Atmospheric Imagery Assembly
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Atmospheric Imagery Assembly">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#94-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
94 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#131-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
131 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#171-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
171 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#193-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
193 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#304-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
304 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#335-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
335 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#1600-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
1600 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#1700-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
1700 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#helioseismic-and-magnetic-imager" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Helioseismic and Magnetic Imager
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Helioseismic and Magnetic Imager">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#magnetogram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Magnetogram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#intensitygram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Intensitygram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#dopplergram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Dopplergram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#large-angle-and-spectrometric-coronagraph" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Large Angle and Spectrometric Coronagraph
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Large Angle and Spectrometric Coronagraph">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c1-not-available" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C1 (NOT AVAILABLE)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c2-orange" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C2 (orange)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c3-blue" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C3 (blue)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" >
|
||
|
||
|
||
<label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="0">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Signal Analysis
|
||
</span>
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_6">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Signal Analysis
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../acf_analysis/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Autocorrelation (ACF)
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../faq/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
FAQ
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../contribute/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Contribute
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="https://github.com/AresValley/Artemis/blob/master/CHANGELOG.md" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Changelog
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../credits/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
License & Credits
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
||
<div class="md-sidebar__scrollwrap">
|
||
<div class="md-sidebar__inner">
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
Table of contents
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#atmospheric-imagery-assembly" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Atmospheric Imagery Assembly
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Atmospheric Imagery Assembly">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#94-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
94 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#131-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
131 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#171-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
171 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#193-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
193 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#304-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
304 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#335-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
335 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#1600-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
1600 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#1700-a" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
1700 Å
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#helioseismic-and-magnetic-imager" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Helioseismic and Magnetic Imager
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Helioseismic and Magnetic Imager">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#magnetogram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Magnetogram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#intensitygram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Intensitygram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#dopplergram" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Dopplergram
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#large-angle-and-spectrometric-coronagraph" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
Large Angle and Spectrometric Coronagraph
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="Large Angle and Spectrometric Coronagraph">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c1-not-available" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C1 (NOT AVAILABLE)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c2-orange" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C2 (orange)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#lasco-c3-blue" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
LASCO C3 (blue)
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="md-content" data-md-component="content">
|
||
<article class="md-content__inner md-typeset">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<h1 id="sun-imagers">Sun Imagers</h1>
|
||
<h2 id="atmospheric-imagery-assembly">Atmospheric Imagery Assembly</h2>
|
||
<h3 id="94-a">94 Å</h3>
|
||
<p><img alt="aia_0094" src="../../assets/aia_0094.webp" /></p>
|
||
<p>This channel (as well as AIA 131) is designed to study solar flares. It measures extremely hot temperatures around 6 million Kelvin (10.8 million F). It can take images every 2 seconds (instead of 10) in a reduced field of view in order to look at flares in more detail.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Flaring regions of the corona</li>
|
||
<li><strong>Wavelength:</strong> 94 angstroms (0.0000000094 m) = Extreme Ultraviolet/soft X-rays</li>
|
||
<li><strong>Primary ions seen:</strong> 17 times ionized iron (Fe XVIII)</li>
|
||
<li><strong>Characteristic temperature:</strong> 6 million K (10.8 million F)</li>
|
||
</ul>
|
||
<h3 id="131-a">131 Å</h3>
|
||
<p><img alt="aia_0131" src="../../assets/aia_0131.webp" /></p>
|
||
<p>This channel (as well as AIA 094) is designed to study solar flares. It measures extremely hot temperatures around 10 million K (18 million F), as well as cool plasmas around 400,000 K (720,000 F). It can take images every 2 seconds (instead of 10) in a reduced field of view in order to look at flares in more detail.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Flaring regions of the corona</li>
|
||
<li><strong>Wavelength:</strong> 131 angstroms (0.0000000131 m) = Extreme Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> 20 and 7 times ionized iron (Fe VIII, Fe XXI)</li>
|
||
<li><strong>Characteristic temperatures:</strong> 10 million K (18 million F)</li>
|
||
</ul>
|
||
<h3 id="171-a">171 Å</h3>
|
||
<p><img alt="aia_0171" src="../../assets/aia_0171.webp" /></p>
|
||
<p>This channel is especially good at showing coronal loops - the arcs extending off of the Sun where plasma moves along magnetic field lines. The brightest spots seen here are locations where the magnetic field near the surface is exceptionally strong.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Quiet corona and upper transition region</li>
|
||
<li><strong>Wavelength:</strong> 171 angstroms (0.0000000171 m) = Extreme Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> 8 times ionized iron (Fe IX)</li>
|
||
<li><strong>Characteristic temperature:</strong> 1 million K (1.8 million F)</li>
|
||
</ul>
|
||
<h3 id="193-a">193 Å</h3>
|
||
<p><img alt="aia_0193" src="../../assets/aia_0193.webp" /></p>
|
||
<p>This channel highlights the outer atmosphere of the Sun - called the corona - as well as hot flare plasma. Hot active regions, solar flares, and coronal mass ejections will appear bright here. The dark areas - called coronal holes - are places where very little radiation is emitted, yet are the main source of solar wind particles.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Corona and hot flare plasma</li>
|
||
<li><strong>Wavelength:</strong> 193 angstroms (0.0000000193 m) = Extreme Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> 11 times ionized iron (Fe XII)</li>
|
||
<li><strong>Characteristic temperature:</strong> 1.25 million K (2.25 million F)</li>
|
||
</ul>
|
||
<h3 id="304-a">304 Å</h3>
|
||
<p><img alt="aia_0304" src="../../assets/aia_0304.webp" /></p>
|
||
<p>This channel is especially good at showing areas where cooler dense plumes of plasma (filaments and prominences) are located above the visible surface of the Sun. Many of these features either can't be seen or appear as dark lines in the other channels. The bright areas show places where the plasma has a high density.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Upper chromosphere and lower transition region</li>
|
||
<li><strong>Wavelength:</strong> 304 angstroms (0.0000000304 m) = Extreme Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> singly ionized helium (He II)</li>
|
||
<li><strong>Characteristic temperature:</strong> 50,000 K (90,000 F)</li>
|
||
</ul>
|
||
<h3 id="335-a">335 Å</h3>
|
||
<p><img alt="aia_0335" src="../../assets/aia_0335.webp" /></p>
|
||
<p>This channel (as well as AIA 211) highlights the active region of the outer atmosphere of the Sun - the corona. Active regions, solar flares, and coronal mass ejections will appear bright here. The dark areas - or coronal holes - are places where very little radiation is emitted, yet are the main source of solar wind particles.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Active regions of the corona</li>
|
||
<li><strong>Wavelength:</strong> 335 angstroms (0.0000000335 m) = Extreme Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> 15 times ionized iron (Fe XVI)</li>
|
||
<li><strong>Characteristic temperature:</strong> 2.8 million K (5 million F)</li>
|
||
</ul>
|
||
<h3 id="1600-a">1600 Å</h3>
|
||
<p><img alt="aia_1600" src="../../assets/aia_1600.webp" /></p>
|
||
<p>This channel (as well as AIA 1700) often shows a web-like pattern of bright areas that highlight places where bundles of magnetic fields lines are concentrated. However, small areas with a lot of field lines will appear black, usually near sunspots and active regions.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Transition region and upper photosphere</li>
|
||
<li><strong>Wavelength:</strong> 1600 angstroms (0.00000016 m) = Far Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> thrice ionized carbon (C IV) and Continuum</li>
|
||
<li><strong>Characteristic temperatures:</strong> 6,000 K (11,000 F), and 100,000 K (180,000 F)</li>
|
||
</ul>
|
||
<h3 id="1700-a">1700 Å</h3>
|
||
<p><img alt="aia_1700" src="../../assets/aia_1700.webp" /></p>
|
||
<p>This channel (as well as AIA 1600) often shows a web-like pattern of bright areas that highlight places where bundles of magnetic fields lines are concentrated. However, small areas with a lot of field lines will appear black, usually near sunspots and active regions.</p>
|
||
<ul>
|
||
<li><strong>Where:</strong> Temperature minimum and photosphere</li>
|
||
<li><strong>Wavelength:</strong> 1700 angstroms (0.00000017 m) = Far Ultraviolet</li>
|
||
<li><strong>Primary ions seen:</strong> Continuum</li>
|
||
<li><strong>Characteristic temperature:</strong> 6,000 K (11,000 F)</li>
|
||
</ul>
|
||
<hr />
|
||
<h2 id="helioseismic-and-magnetic-imager">Helioseismic and Magnetic Imager</h2>
|
||
<h3 id="magnetogram">Magnetogram</h3>
|
||
<p><img alt="hmib" src="../../assets/HMIB.webp" /></p>
|
||
<p>Magnetograms show maps of the magnetic field on the Sun’s surface. The HMI instrument uses the Zeeman effect to measure the intensity of the magnetic field component along the line of sight by making use of the circularly polarized spectral line. The color chart of the magnetic field along the line of sight is designed to visually show both high and low values. Intensities less than 24G are shades of gray. Positive values of the field are green and blue. Negative values are yellow and red. Regions with a weak field appear mainly in yellow or green. Progressively positive values range from dark green to light green (at 236 G). Negative values range from light yellow to orange (at -236G). There is a strong discontinuity in the coloration at 236G. Positive or negative sunspots and other regions with an intense field appear blue or red with dark umbrae. There are 254 colors arranged symmetrically around 0. The 127 positive values include 2 grays tending toward dark, 13 greens toward light, and 110 blues toward dark. The 127 negative values include 2 grays tending toward light, 18 yellows toward dark, and 107 reds toward dark. Nominally, each color indicates a range of about 11.81 G, and the coloration altogether spans the range between -1500 G and 1500 G</p>
|
||
<h3 id="intensitygram">Intensitygram</h3>
|
||
<p><img alt="hmii" src="../../assets/HMII.webp" /></p>
|
||
<p>HMI samples the Fe I absorption line at 6173.3 Å at six points, assuming that the "pure" profile of the Fe I line is Gaussian and the transmission profiles are delta functions, the first and second Fourier coefficients of the Fe I line profile can be calculated, and Doppler velocity estimation can be performed. An estimate of the intensity in the continuum is obtained by "reconstructing" the solar line from the Doppler offset and the thickness and depth of the line.</p>
|
||
<h3 id="dopplergram">Dopplergram</h3>
|
||
<p><img alt="hmid" src="../../assets/HMID.webp" /></p>
|
||
<p>HMI camera 2 takes 72 images to construct a single Doppler diagram. Six images are taken at six positions across the spectral line at 6173.3 Å. Each image is taken in two polarization states, circularly polarized to the right (RCP or Stokes I-V) and circularly polarized to the left (LCP or Stokes I+V). Assuming that the absorption line is Gaussian and the transmission profiles of the HMI filter are delta functions, Fourier coefficients are calculated and then used to estimate the magnetic field B along the line of sight.</p>
|
||
<hr />
|
||
<h2 id="large-angle-and-spectrometric-coronagraph">Large Angle and Spectrometric Coronagraph</h2>
|
||
<h3 id="lasco-c1-not-available">LASCO C1 (NOT AVAILABLE)</h3>
|
||
<p>A Fabry–Pérot interferometer coronagraph imaging from 1.1 to 3 solar radii, non-functional since the 24 June 1998 SOHO Mission Interruption</p>
|
||
<h3 id="lasco-c2-orange">LASCO C2 (orange)</h3>
|
||
<p><img alt="lasco_c2" src="../../assets/lasco_c2.webp" /></p>
|
||
<p>A white light coronagraph imaging from 1.5 to 6 solar radii. The LASCO camera is equipped with an occulting disk that blocks out the Sun to be able to study the faint details in the corona.</p>
|
||
<h3 id="lasco-c3-blue">LASCO C3 (blue)</h3>
|
||
<p><img alt="lasco_c3" src="../../assets/lasco_c3.webp" /></p>
|
||
<p>A white light coronagraph imaging from 3.7 to 30 solar radii</p>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</article>
|
||
</div>
|
||
|
||
|
||
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
|
||
</div>
|
||
|
||
</main>
|
||
|
||
<footer class="md-footer">
|
||
|
||
<div class="md-footer-meta md-typeset">
|
||
<div class="md-footer-meta__inner md-grid">
|
||
<div class="md-copyright">
|
||
|
||
|
||
Made with
|
||
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
|
||
Material for MkDocs
|
||
</a>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
</div>
|
||
<div class="md-dialog" data-md-component="dialog">
|
||
<div class="md-dialog__inner md-typeset"></div>
|
||
</div>
|
||
|
||
|
||
<script id="__config" type="application/json">{"base": "../..", "features": "content.code.copy content.tooltips", "search": "../../assets/javascripts/workers/search.6ce7567c.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
|
||
|
||
|
||
<script src="../../assets/javascripts/bundle.83f73b43.min.js"></script>
|
||
|
||
<script src="../../javascripts/katex.js"></script>
|
||
|
||
<script src="https://unpkg.com/katex@0/dist/katex.min.js"></script>
|
||
|
||
<script src="https://unpkg.com/katex@0/dist/contrib/auto-render.min.js"></script>
|
||
|
||
|
||
</body>
|
||
</html> |