ПБС

[поц]

Joseph Remis‏ @jremis сейчас1 минуту назад


Spain and Italy: mode alert off. One last pass to be observed at dawn from Italy at UTC 04h12mn and from Spain at UTC 05h40mn

[поц]

Andrew Jones‏ @AJ_FI сейчас2 минуты назад


Falling fast: CMSA reports #Tiangong1 orbit for March 31 as 171.8 x 186.2 km, losing 9.5 km altitude over last 24 hours. Estimated reentry window is April 2 Beijing time (±1day).

[поц]

Joseph Remis‏ @jremis сейчас18 секунд назад


#TIANGONG1!España fuera de peligro!

Испания вне опасности!

[поц]

Joseph Remis‏ @jremis сейчас2 минуты назад


Update: obj. 31309 ARIANE 5 DEB (SYLDA) decay prediction: April 03, 2018 UTC 14h02mn ± 14h

[поц]

Joseph Remis‏ @jremis сейчас56 секунд назад


Obj. 24965 IRIDIUM 19 decay prediction: April 07, 2018 UTC 17h09mn ± 36h

[поц]

ESA Operations‏Подлинная учетная запись @esaoperations сейчас2 минуты назад


Monitoring (almost) complete: Summary update from ESA's #SpaceDebris team. #Tiangong1 likely to reenter between this evening and early tomorrow, centred around 01:07 UTC

[поц]

Прогнозы, конечно, вещь неблагодарная...
Начнёт разрушаться над Сахарой, может быть, здесь и обойдётся...
Если не обойдётся, тогда зафеерит по линии Кипр-Ереван-Тбилиси, возможно, Баку...
Ну как-то так, имхо...Ах, да   речь конечно о Тягуне, а то некоторые не поймут 

[zandr]

Есть и другое мнение. Некоторые (  ) полагают, что вход в атмосферу и падение непременно произойдёт в крайне южной части орбиты
 

[поц]

Jonathan McDowell‏Подлинная учетная запись @planet4589 сейчас1 минуту назад


No new TLEs for past 2 orbits. But we do have a new TIP message: with a 4 hour window: Apr 1 2248 UTC to Apr 2 0248 UTC.

[Старый]

Южная Атлантика? Или допилит таки до самого Китая?

[поц]

Jonathan McDowell‏Подлинная учетная запись @planet4589 сейчас24 секунды назад


Amusingly the famous 'spacecraft graveyard' in the S Pacific is actually under the groundtrack on all three possible reentry orbits.

[поц]

апогей прошёл, заходит на Юг Африки...Интересно,  уже искрит, нет?

[zandr]

Последние измерения орбиты "Тяньгун-1" были проведены NORAD в 17:38 мск: перигей (ближайшее расстояние от Земли) составил 145 км, апогей (наибольшее расстояние) 154 км, средняя высота - 149,8 км.
Как прогнозирует NORAD, станция прекратит свое орбитальное существование в 03:47 мск.

Подробнее на ТАСС:
http://tass.ru/kosmos/5086015

[поц]

Jonathan McDowell‏Подлинная учетная запись @planet4589 сейчас4 минуты назад


Tiangong-1 passing 140 km over China. 40 min till start of formal reentry window.

[поц]

Joseph Remis‏ @jremis сейчас2 минуты назад


Obj. 41565 FLOCK 2EP 7 decay prediction: April 07, 2018 UTC 16h50mn ± 38h

[поц]

Dr Marco Langbroek‏ @Marco_Langbroek сейчас3 минуты назад


My updated #reentry estimates for #Tiangong1 (re-issue of SatEvo result as first result was faulty): SatAna/SatEvo: 2 Apr, 00:56 UT+- 130 min GMAT: 2 Apr, 00:36 UT +- 130 min Going to take a few hours sleep now.....

[поц]

Joseph Remis‏ @jremis сейчас2 минуты назад


Update: obj. 37820 #TIANGONG1 decay prediction: April 01, 2018 UTC 23h56mn ± 2h

Possible sighting locations: Mar del Plata: 23h02mn Libreville: 23h22mn Ispahan: 23h36mn Buenos Aires - Montevideo: 00h35mn Abidjan: 00h51mn Nicosia: 01h03mn Bakou: 01h07mn

[tnt22]

http://www.xinhuanet.com/english/2018-04/02/c_137081947.htm

Tiangong-1 to re-enter Earth's atmosphere at around 8:49 a.m. Monday: CMSEO
Source: Xinhua | 2018-04-02 08:33:43 | Editor: Liangyu

BEIJING, April 2 (Xinhua) -- Tiangong-1, China's first space lab, is expected to re-enter the Earth's atmosphere between 8:11 a.m. and 9:33 a.m. on Monday, according to China Manned Space Engineering Office (CMSEO).

The most possible re-entry time would be 8:49 a.m., according to an announcement on the office's website early Monday.

Tiangong-1 is forecast to re-enter in an area centered on 19.4 degrees west longitude and 10.2 degrees south latitude.

Tiangong-1 orbited at an average altitude of 138.8 kilometers at 5:00 a.m. on Monday.

The space lab will mostly be burnt up in the atmosphere and it's highly unlikely to cause any damage on the ground, according to CMSEO.

Спойлер

With a weight of about eight tons, Tiangong-1 is much smaller the 80-ton Skylab and 140-ton Mir, and is unlikely to affect aviation activities or cause damage on the ground, the CMSEO said.

The re-entry process is usually divided into three phases. During the first phase, the atmospheric drag will rip solar arrays, antennas, and other external parts off a spacecraft at an altitude of about 100 kilometers.

As it continues to fall, the main structure of the spacecraft will be burnt or explode from increasing heat and friction. It normally disintegrates at an altitude of about 80 kilometers.

The fragments will keep burning and most of them will be dissipated in the air. Only a small amount of debris will reach the ground, and will float down at a very slow speed due to their small mass.

Спойлер

Tiangong-1 was launched on Sept. 29, 2011 and ended service in March 2016 after completing its mission.

It has docked with Shenzhou-8, Shenzhou-9, and Shenzhou-10 spacecraft and undertaken a series of tasks, making important contributions to China's manned space cause.

[свернуть]

[свернуть]

[tnt22]

http://www.xinhuanet.com/english/2018-04/02/c_137082156.htm

Tiangong-1 reenters Earth's atmosphere
Source: Xinhua | 2018-04-02 09:03:49 | Editor: Liangyu

BEIJING, April 2 (Xinhua) -- Tiangong-1, China' s experimental space lab, reentered the Earth's atmosphere at around 8:15 a.m. on Monday, China Manned Space Engineering Office (CMSEO) said.

It re-entered in the central region of the South Pacific, the CMSEO said.

The space lab was mostly burnt up in the atmosphere, according to the monitoring and analysis of the Beijing Aerospace Control Center and relevant organizations.

Tiangong-1 was launched on Sept. 29, 2011 and ended service in March 2016 after completing its mission. It has docked with Shenzhou-8, Shenzhou-9 and Shenzhou-10 spacecraft, and undertaken a series of tasks, making important contributions to China's manned space cause.

[tnt22]

18 SPCS‏ @18SPCS 1 мин. назад

UPDATE: #JFSCC confirmed #Tiangong1 reentered the atmosphere over the southern Pacific Ocean at ~5:16 p.m. (PST) April 1. For details see http://www.space-track.org  @US_Stratcom @usairforce @AFSpaceCC @30thSpaceWing @PeteAFB @SpaceTrackOrg