Ihe omimi "mmiri ozuzo nke satịlaịtị": Ihe karịrị 500 Starlink LEO Satellites efunahụla na ọrụ anyanwụ

Ihe omume ahụ: Site na mfu mgbe ụfọdụ ruo n'oké mmiri ozuzo

Mkpochapụ oke nke satịlaịtị LEO nke Starlink emeghị na mberede. Kemgbe ewepụtara mmemme a na 2019, mfu satịlaịtị pere mpe na mbụ (2 na 2020), dabara na ọnụego nnabata a tụrụ anya ya. Agbanyeghị, 2021 hụrụ mmụba dị egwu (mfu 78), sochiri ọkwa dị elu (99 na 2022, 88 na 2023). Ọgba aghara ahụ ruru na 2024 na satịlaịtị 316 na-ere ọkụ - ọnụ ọgụgụ afọ atọ gara aga - na-agbakọta mfu 583, nke nhata ~ 1 satịlaịtị na-efu kwa ụbọchị ma ọ bụ 1 n'ime mmadụ 15 na-emezughị ọrụ ya.

Ọrụ anwụ: Onye na-adịghị ahụ anya

Nnyocha NASA na-akwado njikọ chiri anya n'etiti deorbiting satịlaịtị na okirikiri anyanwụ. Mwepụta 2019 dabara na opekempe anyanwụ, mana ka ọrụ anyanwụ na-abawanye, ikuku ikuku na 340-550km orbits mụbara site na> 50% n'oge oke ifufe geomagnetic. Nke a na-eme mgbe:

1. Sunspot kpalitere ọkụ ọkụ anyanwụ/mpụ n'ụka nke korona na-atụ bọmbụ n'ụwa
2. Geomagnetic oké ifufe na-ekpo ọkụ ma gbasaa ikuku elu
3. Mgbasa ikuku na-abawanye ịdọrọ, na-ebute ire ere orbital

Paradox: Oké ifufe na-adịghị ike na-egosi na ọ na-egbu egbu

N'adịghị ka atụmanya, 70% nke mfu mere n'oge oke ifufe geomagnetic adịghị ike. Ihe omume ndị a ogologo oge (ụbọchị na-adịgide adịgide / izu) ji nwayọọ nwayọọ na-eweda orbits karịa mgbake, n'adịghị ka oké ifufe siri ike ma dị nkenke. Ihe atụ pụtara ìhè: Satịlaịtị 40 nke 49 Starlink ewepụtara na Febụwarị 2022 dabara na oke mmiri ozuzo na-adịghị ike.

Obere-Orbit Tradeoffs

Ebe Starlink's 550km orbits na-eme ka nkwukọrịta dị ala, ịdị nso ha na Ụwa:

1. Na-amachi ogologo ndụ ọrụ ruo afọ 5 (vs. ISS's 400km orbit)
2. Na-eme ka mmetụta ịdọrọ dịkwuo njọ n'oge maxima anyanwụ
3. Karịsịa na-etinye ihe egwu nwale satịlaịtị na elu 210km

Ihe ịma aka n'ọdịnihu

Na> Satellites Starlink 6,000 na-agbagharị ugbu a n'oge oke anyanwụ - nchịkọta akụkọ ihe mere eme - ndị ọkà mmụta sayensị dọrọ aka ná ntị:

1. Mgbatị satịlaịtị emelitere
2. Mbelata ozone nwere ike site na aluminom oxide n'oge nlọghachite SpaceX na-ebelata mfu site na mweghachi ngwa ngwa yana ụkpụrụ deorbit na-akpaghị aka, mana nkwụghachi okirikiri anyanwụ ka bụ nnukwu mkpa ụlọ ọrụ.

Mmechi

Ihe omume a na-emesi ike ike okike n'elu nkà na ụzụ mmadụ ma na-akọwapụta mkpa ọ dị maka nhazi usoro LEO nke na-aza maka mmetụta anyanwụ cyclical.

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