Author Topic: New Generation Crew Spacecraft Test - CZ-5B - Wenchang - May 5, 2020 - 1000UTC  (Read 142269 times)

Offline Star One

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Scott Manley’s report on the launch:

« Last Edit: 05/05/2020 06:20 pm by Star One »

Offline edkyle99

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Is the orbit known ?

Relatedly, is the core stage orbital or does cut off à la Shuttle in a barely-suborbital trajectory, while the NGCC uses its thrusters to cover the slight dV needed to achieve a stable orbit?

If the stage is orbital it should make for quite a show under the proper lighting conditions...
And a show when it reenters....   Thankfully, I don't have to worry about that.  I live north of 41.1 deg Latitude.  :)

 - Ed Kyle

Offline TrevorMonty

Scott Manley’s report on the launch:


Interesting secondary payload is China's answer to NASA HIAD (inflatable heatshield), they want to use it to return payloads to earth. One of original ideas for HIAD was to use it to return Cygnus, looks like Chinese are going do something similar.


Offline input~2

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2 objects have been cataloged so far:

2020-027A/45599 in 162 x 377 km x 41.1°
2020-027B/45600 in 163 x 372 km x 41.1°

and a 3rd one:
2020-027C/45601 in 158 x 367 km x 41.1°
Edit in red thanks to Jonathan!
« Last Edit: 05/06/2020 03:14 pm by input~2 »

Online jcm

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2 objects have been cataloged so far:

2020-027A/45599 in 162 x 377 km x 41.1°
2020-027B/45600 in 163 x 372 km x 41.1°

and a 3rd one:
2020-027C/45601 in 158 x 367 m x 41.1°

km :-)
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline WulfTheSaxon

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It’s pretty cool that they put 22t into orbit without the need for an upper stage.

They have a hydrolox core sustainer stage with a high ISP that nearly reaches orbit anyway, so using the upper stage wouldn't really increase the payload to LEO.  Kind of like the Space Shuttle.

Indeed. SLS with composite boosters could lift more to LEO without ICPS than with it, if you didn’t care about core disposal.

Offline Galactic Penguin SST

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Offline edkyle99

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Trying to place this launch in history.  It is, I believe, China's heaviest-ever orbital payload.  It is the heaviest payload since at least ATV-5 in 2015, which weighed 19.23 tonnes.  It is probably heavier than that.  You would have to go back to Shuttle in 2011, which weighed more than 100 tonnes including its payload.  In terms of deployable payload mass, you might have to go back to Skylab maybe (77 tonnes, 1973)?  The core stage, if it went to orbit, may be the largest (dimensionally) single object orbited since Space Shuttle in 2011, though some satellites might span larger distances once antenna arrays deploy. 

 - Ed Kyle
« Last Edit: 05/06/2020 04:55 am by edkyle99 »

Offline Lars-J

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Were official mass figures released for the payload or is it just guesswork based on the future manned version mass and the CZ-5B LEO capability?

Offline Steven Pietrobon

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Were official mass figures released for the payload or is it just guesswork based on the future manned version mass and the CZ-5B LEO capability?

The spacecraft is 21.6 t.

"The new generation of spacecraft must have the parameters disclosed for the second time: length 8.8 meters and weight 21.6 tonnes"
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Galactic Penguin SST

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https://twitter.com/launchstuff/status/1257887385163046917

Quote
News clip about the inflatable heat shield.

ℹ:weibo.com/3279752321/J0C…

Offline Steven Pietrobon

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Some screen grabs. Shield is 3 m in diameter when deployed from a spacecraft 1 m in diameter and 1.5 m in length.
« Last Edit: 05/06/2020 07:44 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Phillip Clark

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Orbital data for the three objects catalogued.

==========================================================================
Catalogue      Orbital      Orbital    Orbital  Perigee    Apogee   Arg of
  Number        Epoch     Inclination   Period                     Perigee
                              deg         min      km        km      deg
--------------------------------------------------------------------------
   
45599     2020 May  5.592    41.088      89.905     162       377    168
45599     2020 May  5.592    41.088      89.905     162       377    168
45599     2020 May  5.785    41.121      92.981     227       614    123
45599     2020 May  5.863    41.098      94.750     299       714    101
45599     2020 May  5.999    41.100      94.800     299       719    102
   
45600     2020 May  5.592    41.093      89.861     163       372    169
45600     2020 May  5.592    41.093      89.861     163       372    169
45600     2020 May  5.722    41.102      89.856     162       373    170
45600     2020 May  5.787    41.102      89.837     163       369    171
45600     2020 May  5.917    41.102      89.823     164       368    172
45600     2020 May  5.974    41.102      89.817     164       367    172
45600     2020 May  5.974    41.102      89.817     164       367    172
   
45601     2020 May  5.592    41.101      89.800     158       372    167
45601     2020 May  5.592    41.101      89.800     158       372    167
45601     2020 May  5.722    41.101      89.791     157       371    168
45601     2020 May  5.723    41.104      89.767     158       368    168
45601     2020 May  5.787    41.104      89.750     158       367    168
45601     2020 May  5.892    41.105      89.727     157       365    169
45601     2020 May  5.955    41.106      89.714     157       363    170
45601     2020 May  5.955    41.106      89.715     157       363    170
   
==========================================================================

The first object is clearly the New Generation Manned Spacecraft (have the Chinese named it?   Maybe a bit early for that.) and I assume that the CZ-5B long core stage is one of the other two objects.
I've always been crazy but it's kept me from going insane - WJ.

Offline Steven Pietrobon

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The first object is clearly the New Generation Manned Spacecraft (have the Chinese named it?

Only name given is Xinyidai Zairen Feichuan - Shiyan Chuan (New Generation Crewed Spaceship - Test Ship).
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Star One

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The first object is clearly the New Generation Manned Spacecraft (have the Chinese named it?

Only name given is Xinyidai Zairen Feichuan - Shiyan Chuan (New Generation Crewed Spaceship - Test Ship).
Which was given in the video I posted yesterday by Scott Manley along with the name of the inflatable heat shield experiment.

Offline Galactic Penguin SST

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Offline Galactic Penguin SST

Looks like air space closure notices has been issued for the crew spacecraft re-entry, around 05:30 UTC on May 8 and again near JSLC.

A1408/20 (Issued for ZLHW ZWUQ) - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N415700E0940712-N420632E1021858-N401901E1021637-N400929E0941644
BACK TO START. VERTICAL LIMITS:SFC-UNL. ALL ACFT SHALL BE
FORBIDDEN TO FLY INTO THE RESTRICTED AREA. SFC - UNL, 08 MAY 05:21 2020 UNTIL
08 MAY 06:01 2020. CREATED: 06 MAY 07:51 2020
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Offline centaurinasa

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Quote
Release Date: 2020-05-06

The flexible inflatable cargo return module, carried by the Long March V B carrier rocket, for the first test and verification, experienced an anomaly in the return process today, and experts are analyzing the data.

http://www.cmse.gov.cn/xwzx/zhxw/202005/t20200506_46489.html
« Last Edit: 05/07/2020 07:36 am by centaurinasa »
To boldly go where no human has gone before !

Online eeergo

Orbital data for the three objects catalogued.

==========================================================================
Catalogue      Orbital      Orbital    Orbital  Perigee    Apogee   Arg of
  Number        Epoch     Inclination   Period                     Perigee
                              deg         min      km        km      deg
--------------------------------------------------------------------------
   
45599     2020 May  5.592    41.088      89.905     162       377    168
45599     2020 May  5.592    41.088      89.905     162       377    168
45599     2020 May  5.785    41.121      92.981     227       614    123
45599     2020 May  5.863    41.098      94.750     299       714    101
45599     2020 May  5.999    41.100      94.800     299       719    102
   
45600     2020 May  5.592    41.093      89.861     163       372    169
45600     2020 May  5.592    41.093      89.861     163       372    169
45600     2020 May  5.722    41.102      89.856     162       373    170
45600     2020 May  5.787    41.102      89.837     163       369    171
45600     2020 May  5.917    41.102      89.823     164       368    172
45600     2020 May  5.974    41.102      89.817     164       367    172
45600     2020 May  5.974    41.102      89.817     164       367    172
   
45601     2020 May  5.592    41.101      89.800     158       372    167
45601     2020 May  5.592    41.101      89.800     158       372    167
45601     2020 May  5.722    41.101      89.791     157       371    168
45601     2020 May  5.723    41.104      89.767     158       368    168
45601     2020 May  5.787    41.104      89.750     158       367    168
45601     2020 May  5.892    41.105      89.727     157       365    169
45601     2020 May  5.955    41.106      89.714     157       363    170
45601     2020 May  5.955    41.106      89.715     157       363    170
   
==========================================================================

The first object is clearly the New Generation Manned Spacecraft (have the Chinese named it?   Maybe a bit early for that.) and I assume that the CZ-5B long core stage is one of the other two objects.

Have visibility predictions been created yet anywhere with these well-defined orbits? Doesn't look like the purported core stage is going to stay up for long.
-DaviD-

 

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