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'Huiyan' (HXMT), Zhuhai-1A/1B - CZ-4B - JSLC - June 15, 2017 (03:00 UTC)
by
Satori
on 13 May, 2016 18:20
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#1
by
Satori
on 04 Nov, 2016 09:05
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Launch is a few weeks (2 / 3?) away and no information about it.
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#2
by
Nordren
on 06 Nov, 2016 13:46
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#3
by
wsl2005
on 15 Dec, 2016 05:27
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HXMT, 550km@43°;
CAS-4A/4B， 524km@42°，march 31 ，2017。
one mission ？？
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#4
by
Satori
on 07 Apr, 2017 12:06
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HXMT to launch in June with two Zhuhai-1 video microsatellites for the Orbita system.
Launch vehicle is a CZ-4B.
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#5
by
Skyrocket
on 07 Apr, 2017 12:37
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HXMT to launch in June with two Zhuhai-1 video microsatellites for the Orbita system.
Launch vehicle is a CZ-4B.
Launchsite is still Jiuquan?
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#6
by
linxiaoyi
on 07 Apr, 2017 13:45
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yes
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#7
by
SmallKing
on 07 Apr, 2017 13:50
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#8
by
russianhalo117
on 10 Apr, 2017 22:38
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yes
Any source?
the fact that parts of HXMT or a simulator was shipped to JSLC last year before being shipped back.
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#9
by
linxiaoyi
on 28 Apr, 2017 08:05
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#10
by
Satori
on 29 May, 2017 22:01
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#11
by
Satori
on 29 May, 2017 22:03
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#12
by
Satori
on 29 May, 2017 22:04
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#13
by
russianhalo117
on 29 May, 2017 22:31
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I'm told that a rocket is in final process of stacking on the pad. type is unknown until later stages arrive.
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#14
by
Galactic Penguin SST
on 07 Jun, 2017 11:29
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#15
by
Satori
on 08 Jun, 2017 03:24
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#16
by
Satori
on 08 Jun, 2017 03:27
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#17
by
zubenelgenubi
on 10 Jun, 2017 22:28
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I found this interesting presentation, delivered by Fangjun Lu in 2013:
The Current Status and Calibration Plan of the Hard X-ray Modulation Telescope Projecthttp://web.mit.edu/iachec/meetings/2013/Presentations/Lu.pdfIt gives this information:
Orbit: 550 km, 43 deg.
Mass: ~3000 kg
Instrument Mass: ~1000 kg
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This paper in 2004 in
Advances in Space Research https://www.researchgate.net/publication/222235318_HXMT_satellite_for_space_hard_X-ray_observation explains why this orbit was chosen: to stay below (most of) the Van Allen belt and to minimize the effects of the South Atlantic Anomaly.
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The paper also summarizes the method used for hard X-ray imaging: collimated detector and the Direct Demodulation (DD) imaging technique.
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Regarding the launch vehicle change from CZ-2D to CZ-4B, I learn from Gunter's Space Page
http://space.skyrocket.de/doc_lau_fam/df-5.htm , that a CZ-2D can launch a 3300 kg payload to LEO, while a CZ-4B can launch a 4200 kg payload to LEO.
Was the launch vehicle changed to provide a greater margin of performance?
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#18
by
Galactic Penguin SST
on 12 Jun, 2017 15:42
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#19
by
russianhalo117
on 12 Jun, 2017 16:01
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I found this interesting presentation, delivered by Fangjun Lu in 2013:
The Current Status and Calibration Plan of the Hard X-ray Modulation Telescope Project
http://web.mit.edu/iachec/meetings/2013/Presentations/Lu.pdf
It gives this information:
Orbit: 550 km, 43 deg.
Mass: ~3000 kg
Instrument Mass: ~1000 kg
***
This paper in 2004 in Advances in Space Research https://www.researchgate.net/publication/222235318_HXMT_satellite_for_space_hard_X-ray_observation explains why this orbit was chosen: to stay below (most of) the Van Allen belt and to minimize the effects of the South Atlantic Anomaly.
***
The paper also summarizes the method used for hard X-ray imaging: collimated detector and the Direct Demodulation (DD) imaging technique.
***
Regarding the launch vehicle change from CZ-2D to CZ-4B, I learn from Gunter's Space Page http://space.skyrocket.de/doc_lau_fam/df-5.htm , that a CZ-2D can launch a 3300 kg payload to LEO, while a CZ-4B can launch a 4200 kg payload to LEO.
Was the launch vehicle changed to provide a greater margin of performance?
AFAIK, CZ-2D is still grounded from last years failure from TSLC so that is the reason for the switch.
