chang'e 5 lunar mission 嫦娥5號

to be launched on 24 Nov, 2020 ( previous was Oct, 2020)

landing site:

Mons Rümker

ESA DSN support tracking:

Unlike Chang'e 4 which was equipped with a radioisotope heater unit to survive the extreme cold of lunar night, the Chang’e-5 landing and sampling need to take place within a single, 14-Earth-day lunar daytime.

TCM-1: 14:00 UTC 24 Nov 2020

TCM-2 and -3: TBA

112 hours to moon.

sunrise over Mons rumker landing site on late 27 Nov

Lunar orbit insertion to a 200 km elliptical orbit on 28 Nov

嫦娥五号探测器需要进入近地点200公里、远地点约41万公里的地月转移轨道，对运载火箭的能力提出了很高的要求。

Lunar landing: 20:30 UTC 29 Nov

The total mission is expected to last a total of 23 days until landing in Dorbod Banner, Inner Mongolia, around December 16–17. Samples would then be transferred to specially developed facilities for handling, analyzing, and storing the lunar material.

嫦娥五号任务计划实现三大工程目标：

一是突破窄窗口多轨道装订发射、月面自动采样与封装、月面起飞、月球轨道交会对接、月球样品储存等关键技术，提升我国航天技术水平;

二是实现我国首次地外天体自动采样返回，推动我国科学技术重大进步;

三是完善探月工程体系，为我国未来开展载人登月与深空探测积累重要的人才、技术和物质基础。

J McDowell's estimated masses of probe elements(in kg):

DS Descent Stage/lander: 1 metric ton + 3800kg fuel,

SM Service Module/orbiter 2500 (3000),

AS Ascent Stage 400 (509),

RV Reentry Vehicle 330,

AD Adapter 250,

DA Docking Adapter 50

8200 kg in total

TLE from Scott Tilley:

1 47097U 20087A 20329.00000000 .00000000 00000-0 00000-0 0 03 2 47097 21.3210 1.7189 9429959 231.4006 5.9004 0.09482118 08 # 20201124.18-20201124.30, 7 measurements, 0.203 deg rms

Satellite Catalog No(Norad): 47097

29 Nov 2020 UTC 20:40

phase 4

中國探月工程「嫦娥五號」探測器組合體順利分離。「嫦娥五號」昨晚在近月點再次「剎車」制動，飛行軌道從橢圓環月軌道，變為近圓形環月軌道。到凌晨4時40分，著陸器和上升器組合體，與軌道器和返回器組合體在人員控制下成功分離。著陸器和上升器組合體將會擇機實施月面軟著陸，進行自動採樣等後續工作。而軌道器和返回器組合體將會繼續在環月軌道上飛行，等待上升器交會對接。國家航天局指目前嫦娥五號探測器各系統狀態良好，地面測控通信正常。

原文網址：https://www.881903.com/news/china/2368546

中國探月工程「嫦娥五號」探測器組合體順利分離。「嫦娥五號」昨晚在近月點再次「剎車」制動，飛行軌道從橢圓環月軌道，變為近圓形環月軌道。到30號凌晨4時40分(UTC20:40)，著陸器和上升器組合體，與軌道器和返回器組合體在人員控制下成功分離。著陸器和上升器組合體將會擇機實施月面軟著陸，進行自動採樣等後續工作。而軌道器和返回器組合體將會繼續在環月軌道上飛行，等待上升器交會對接。國家航天局指目前嫦娥五號探測器各系統狀態良好，地面測控通信正常。

phase 5

1 Dec 2020 15:11 UTC

successful landed. 43.1 N, 51.8W

4 Dec

The LROC team computed the coordinates of the lander to be 43.0576° N, 308.0839°E(51.9161°W), –2570 m elevation, with an estimated accuracy of plus-or-minus 20 meters.

landing site

manipulator arm and sample cannister developed by hk polyu

re-entry: boost-glide

soil samples content

bilibili video

aliveuniverse

space.com

zhihu on 11 phases of mission

北京航天飞行控制中心 Beijing Aerospace Control Center (BACC) or MCC

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ultrafast rendezvous to ISS

14 Oct 2020, being the first to use a new “ultrafast” rendezvous” scheme with the ISS. Following a flawless ascent to the correct orbit, Soyuz 2 .1a , Soyuz MS-17 caught up with the orbiting laboratory in only two orbits (three hours), halving the time it takes for crew to get to the Station. The three space travelers of the Soyuz MS-17 mission launched on a six-month mission the International Space Station. previous 3/4 orbit rendezvous: Soyuz MS-16 4 orbit rendezvous A three-orbit profile was deemed possible without major flight design changes after inauguration of the Soyuz 2-1A rocket that provides a much higher orbit injection accuracy than its predecessors and would allow the two correction maneuvers on Orbit #2 to be eliminated while the Automated Rendezvous Phase would still remain untouched. The deletion of the Orbit #2 maneuvers was expected to slightly tighten the already restrictive phase angle window from and upper limit of 30-35° to 25-28°...

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Scythians 斯泰基塞種西古提人

900 BC - 200 AD British museum Tomb of scythe prince, Buktarma valley, 1200 masl, Google map Herodotus 絲路上的帝國 Biblegeography 哥羅西書 3：11 在此並不分希利尼人、猶太人、受割禮的、未受割禮的、化外人、西古提人、為奴的、自主的．惟有基督是包括一切、又住在各人之內。塞種塞迦 saka 史記漢書西域傳：塞種 ctext 昔匈奴破大月氏，大月氏西君大夏，而塞王南君罽賓。塞種分散，往往為數國。自疏勒以西北，休循、捐毒之屬，皆故塞種也。匈奴列傳 Ctext ：塞王《史記》在《大宛列傳》與《匈奴列傳》中，詳細記錄了中亞至天山一帶的塞種（塞王、塞地）狀況。例如，文中記載了月氏西破走塞王，導致塞人南遷越過懸度（今帕米爾高原及克什米爾一帶） Baike Genetic history Genetics Nih griffin ? Scytho-Siberian world 塞迦 saka wiki Disappeared? Sarmatians （薩爾馬泰，奄蔡史記 , Aorsi ）and goths YouTube

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