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The '''Lunar Atmosphere and Dust Environment Explorer''' ('''LADEE'''; {{IPAc-en|ˈ|l|æ|d|i}})<ref name="nasa-overview" /> was a [[NASA]] [[lunar exploration]] and [[technology demonstration]] mission. It was launched on a [[Minotaur V]] rocket from the [[Mid-Atlantic Regional Spaceport]] on September 7, 2013.<ref name="gsfc-ladee" /> During its seven-month mission, LADEE [[orbit]]ed the Moon's equator, using its instruments to study the [[Atmosphere of the Moon|lunar exosphere]] and dust in the Moon's vicinity. Instruments included a dust detector, neutral [[mass spectrometer]], and ultraviolet-visible [[spectrometer]], as well as a technology demonstration consisting of a [[laser]] [[satellite communications|communications]] terminal.<ref name="nasa-science" /> The mission ended on April 18, 2014, when the spacecraft's controllers intentionally crashed LADEE into the [[far side of the Moon]],<ref name="nyt20140418" /><ref name="abc20140418" /> which, later, was determined to be near the eastern rim of [[Sundman (crater)|Sundman V crater]].<ref name="NASA-20141028-NNJ" /> |
The '''Lunar Atmosphere and Dust Environment Explorer''' ('''LADEE'''; {{IPAc-en|ˈ|l|æ|d|i}})<ref name="nasa-overview" /> was a [[NASA]] [[lunar exploration]] and [[technology demonstration]] mission. It was launched on a [[Minotaur V]] rocket from the [[Mid-Atlantic Regional Spaceport]] on September 7, 2013.<ref name="gsfc-ladee" /> During its seven-month mission, LADEE [[orbit]]ed around the Moon's equator, using its instruments to study the [[Atmosphere of the Moon|lunar exosphere]] and dust in the Moon's vicinity. Instruments included a dust detector, neutral [[mass spectrometer]], and ultraviolet-visible [[spectrometer]], as well as a technology demonstration consisting of a [[laser]] [[satellite communications|communications]] terminal.<ref name="nasa-science" /> The mission ended on April 18, 2014, when the spacecraft's controllers intentionally crashed LADEE into the [[far side of the Moon]],<ref name="nyt20140418" /><ref name="abc20140418" /> which, later, was determined to be near the eastern rim of [[Sundman (crater)|Sundman V crater]].<ref name="NASA-20141028-NNJ" /> |
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==Planning and preparations== |
==Planning and preparations== |
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</gallery> |
</gallery> |
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==Preliminary results== |
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==Results== |
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{{update section|date=November 2023}} |
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The LADEE science teams continued to analyze data acquired at the time of the Chang'e 3 landing on December 14, 2013.<ref name="results Jan 2014" /> |
The LADEE science teams continued to analyze data acquired at the time of the Chang'e 3 landing on December 14, 2013.<ref name="results Jan 2014" /> |
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* The Lunar Dust EXperiment (LDEX) team noted an increase in dust around the time of the landing. However, the rise preceded the landing time by many hours, suggesting a different origin. Indeed, the [[Geminids]] meteor shower coincided with this landing event and produced elevated dust counts before, during and after the landing period.<ref name="results Jan 2014" /> The team reported that "if LADEE did encounter any lunar soil particles thrown up by the final descent of Chang'e 3, they would have been lost in the background of Geminid-produced events."<ref name="results Jan 2014" /> |
* The Lunar Dust EXperiment (LDEX) team noted an increase in dust around the time of the landing. However, the rise preceded the landing time by many hours, suggesting a different origin. Indeed, the [[Geminids]] meteor shower coincided with this landing event and produced elevated dust counts before, during and after the landing period.<ref name="results Jan 2014" /> The team reported that "if LADEE did encounter any lunar soil particles thrown up by the final descent of Chang'e 3, they would have been lost in the background of Geminid-produced events."<ref name="results Jan 2014" /> |
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{{Portal|Spaceflight|Solar System}} |
{{Portal|Spaceflight|Solar System}} |
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* [[List of artificial objects on the Moon]] |
* [[List of artificial objects on the Moon]] |
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* [[List of missions to the Moon]] |
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==References== |
==References== |
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Symbols: ~ | ¡ ¿ † ‡ ↔ ↑ ↓ • ¶ # ∞ ‹› «» ¤ ₳ ฿ ₵ ¢ ₡ ₢ $ ₫ ₯ € ₠ ₣ ƒ ₴ ₭ ₤ ℳ ₥ ₦ № ₧ ₰ £ ៛ ₨ ₪ ৳ ₮ ₩ ¥ ♠ ♣ ♥ ♦ 𝄫 ♭ ♮ ♯ 𝄪 © ® ™
Latin: A a Á á À à  â Ä ä Ǎ ǎ Ă ă Ā ā à ã Å å Ą ą Æ æ Ǣ ǣ B b C c Ć ć Ċ ċ Ĉ ĉ Č č Ç ç D d Ď ď Đ đ Ḍ ḍ Ð ð E e É é È è Ė ė Ê ê Ë ë Ě ě Ĕ ĕ Ē ē Ẽ ẽ Ę ę Ẹ ẹ Ɛ ɛ Ǝ ǝ Ə ə F f G g Ġ ġ Ĝ ĝ Ğ ğ Ģ ģ H h Ĥ ĥ Ħ ħ Ḥ ḥ I i İ ı Í í Ì ì Î î Ï ï Ǐ ǐ Ĭ ĭ Ī ī Ĩ ĩ Į į Ị ị J j Ĵ ĵ K k Ķ ķ L l Ĺ ĺ Ŀ ŀ Ľ ľ Ļ ļ Ł ł Ḷ ḷ Ḹ ḹ M m Ṃ ṃ N n Ń ń Ň ň Ñ ñ Ņ ņ Ṇ ṇ Ŋ ŋ O o Ó ó Ò ò Ô ô Ö ö Ǒ ǒ Ŏ ŏ Ō ō Õ õ Ǫ ǫ Ọ ọ Ő ő Ø ø Œ œ Ɔ ɔ P p Q q R r Ŕ ŕ Ř ř Ŗ ŗ Ṛ ṛ Ṝ ṝ S s Ś ś Ŝ ŝ Š š Ş ş Ș ș Ṣ ṣ ß T t Ť ť Ţ ţ Ț ț Ṭ ṭ Þ þ U u Ú ú Ù ù Û û Ü ü Ǔ ǔ Ŭ ŭ Ū ū Ũ ũ Ů ů Ų ų Ụ ụ Ű ű Ǘ ǘ Ǜ ǜ Ǚ ǚ Ǖ ǖ V v W w Ŵ ŵ X x Y y Ý ý Ŷ ŷ Ÿ ÿ Ỹ ỹ Ȳ ȳ Z z Ź ź Ż ż Ž ž ß Ð ð Þ þ Ŋ ŋ Ə ə
Greek: Ά ά Έ έ Ή ή Ί ί Ό ό Ύ ύ Ώ ώ Α α Β β Γ γ Δ δ Ε ε Ζ ζ Η η Θ θ Ι ι Κ κ Λ λ Μ μ Ν ν Ξ ξ Ο ο Π π Ρ ρ Σ σ ς Τ τ Υ υ Φ φ Χ χ Ψ ψ Ω ω {{Polytonic|}}
Cyrillic: А а Б б В в Г г Ґ ґ Ѓ ѓ Д д Ђ ђ Е е Ё ё Є є Ж ж З з Ѕ ѕ И и І і Ї ї Й й Ј ј К к Ќ ќ Л л Љ љ М м Н н Њ њ О о П п Р р С с Т т Ћ ћ У у Ў ў Ф ф Х х Ц ц Ч ч Џ џ Ш ш Щ щ Ъ ъ Ы ы Ь ь Э э Ю ю Я я ́
IPA: t̪ d̪ ʈ ɖ ɟ ɡ ɢ ʡ ʔ ɸ β θ ð ʃ ʒ ɕ ʑ ʂ ʐ ç ʝ ɣ χ ʁ ħ ʕ ʜ ʢ ɦ ɱ ɳ ɲ ŋ ɴ ʋ ɹ ɻ ɰ ʙ ⱱ ʀ ɾ ɽ ɫ ɬ ɮ ɺ ɭ ʎ ʟ ɥ ʍ ɧ ʼ ɓ ɗ ʄ ɠ ʛ ʘ ǀ ǃ ǂ ǁ ɨ ʉ ɯ ɪ ʏ ʊ ø ɘ ɵ ɤ ə ɚ ɛ œ ɜ ɝ ɞ ʌ ɔ æ ɐ ɶ ɑ ɒ ʰ ʱ ʷ ʲ ˠ ˤ ⁿ ˡ ˈ ˌ ː ˑ ̪ {{IPA|}}
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