Author Topic: Zhongxing-9A (Chinasat-9A), CZ-3B/G2 - XSLC - June 18, 2017 (16:11 UTC)  (Read 18667 times)

Offline input~2

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About launch mission codenames:
- This one was 07-79
- Last launch from Xichang was 07-77 (SJ-13) in April
- A poster on 9ifly speculates that 07-78 "should be the postponed launch of CZ-2C from Xichang"

Offline Galactic Penguin SST

China Spaceflight saying all media and officials silent. looking at tv sites they are no longer mentioning the launch in news tickers. also tracking sites not yet found anything on the orbit.

Latest Status update: https://twitter.com/cnspaceflight

Not a good sign...
It reminds me of the Gaofen 10 launch...

Maybe the orbit is low. Anything on NORAD yet?
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Galactic Penguin SST

Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline russianhalo117

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China Spaceflight saying all media and officials silent. looking at tv sites they are no longer mentioning the launch in news tickers. also tracking sites not yet found anything on the orbit.

Latest Status update: https://twitter.com/cnspaceflight

Not a good sign...
It reminds me of the Gaofen 10 launch...

Maybe the orbit is low. Anything on NORAD yet?
Not sure how credible but here's a rumor of lower orbit than planned but the satellite's healthy.
Civil Tracking sites still have found nothing in the planned target injection orbit. Havent seen anything from NORAD or USSTRATCOM so far.
https://nssdc.gsfc.nasa.gov/nmc/SpacecraftQuery.jsp also doesnt find anything on orbit.
« Last Edit: 06/18/2017 11:49 PM by russianhalo117 »

Offline jcm

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China Spaceflight saying all media and officials silent. looking at tv sites they are no longer mentioning the launch in news tickers. also tracking sites not yet found anything on the orbit.

Latest Status update: https://twitter.com/cnspaceflight

Not a good sign...
It reminds me of the Gaofen 10 launch...

Maybe the orbit is low. Anything on NORAD yet?
Not sure how credible but here's a rumor of lower orbit than planned but the satellite's healthy.
Civil Tracking sites still have found nothing in the planned target injection orbit. Havent seen anything from NORAD or USSTRATCOM so far.
https://nssdc.gsfc.nasa.gov/nmc/SpacecraftQuery.jsp also doesnt find anything on orbit.

Yes, but NORAD/USSTRATCOM release of data to e.g. space-track.org has been running about a day late
for the past few months. So I don't expect anything till tomorrow.
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline russianhalo117

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China Spaceflight saying all media and officials silent. looking at tv sites they are no longer mentioning the launch in news tickers. also tracking sites not yet found anything on the orbit.

Latest Status update: https://twitter.com/cnspaceflight

Not a good sign...
It reminds me of the Gaofen 10 launch...

Maybe the orbit is low. Anything on NORAD yet?
Not sure how credible but here's a rumor of lower orbit than planned but the satellite's healthy.
Civil Tracking sites still have found nothing in the planned target injection orbit. Havent seen anything from NORAD or USSTRATCOM so far.
https://nssdc.gsfc.nasa.gov/nmc/SpacecraftQuery.jsp also doesnt find anything on orbit.

Yes, but NORAD/USSTRATCOM release of data to e.g. space-track.org has been running about a day late
for the past few months. So I don't expect anything till tomorrow.

correct. just responding to GP's post. I should have put in a it takes a while to receive disclaimer in like you did in my post.
« Last Edit: 06/19/2017 12:12 AM by russianhalo117 »

Offline Galactic Penguin SST

Not sure how credible but here's a rumor of lower orbit than planned but the satellite's healthy.

More rumors, this time from the "coughing guy" who was apparently on site:

- seems like the rocket 3rd stage might have some  attitude control problems of unknown source, based on telemetry he saw at the LCC
- satellite propellant usage for making up the shortfall "might be huge"
« Last Edit: 06/19/2017 03:47 AM by Galactic Penguin SST »
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Alter Sachse

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A half day away and only the "Sound of silence" :(

Offline Galactic Penguin SST

Finally a terse official statement has come from CASC confirming that a problem on the rocket 3rd stage has put the satellite in a wrong orbit. It also confirms that the solar arrays and antennas on the satellite have been deployed.
http://m.spacechina.com/n1105979/c1670019/content.html
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Phillip Clark

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I wonder what the "effective measures" are that are being taken ..........

Offline chewi

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New broadcasting satellite fails to enter preset orbit
http://news.xinhuanet.com/english/2017-06/19/c_136377564.htm

XICHANG, Sichuan, June 19 (Xinhua) -- A broadcasting satellite, which was launched aboard the Long March-3B carrier rocket from southwest China's Xichang Satellite Launch Center at 12:11 a.m. Monday, failed to enter the preset orbit.

The exact reason for the failure of the radio and television broadcasting satellite is under investigation.

Offline GELORD

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Start Time 00:10:28 Beijing
与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

Offline SmallKing

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Start Time 00:10:28 Beijing

It is not the official time
Launch Land Relaunch

Offline Galactic Penguin SST

Orbit data now in:

42763/2017-035A: 193 x 16357 km x 25.68 deg.
42764/2017-035B: 192 x 16358 km x 25.68 deg.

I'm not even sure that's salvageable.... :-\
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline input~2

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42764/2017-035B: 192 x 16358 km x 25.68 deg.
small edit for Object B: 192 x 16354 km x 25.68

Offline Phillip Clark

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Orbit data now in:
42763/2017-035A: 193 x 16357 km x 25.68 deg.
42764/2017-035B: 192 x 16358 km x 25.68 deg.
I'm not even sure that's salvageable.... :-\

I am sure that the altitude is too low for the satellite to get into GEO - and of course changing the inclination is the real killer.

Offline chewi

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1st LD: New broadcasting satellite fails to enter preset orbit
http://news.xinhuanet.com/english/2017-06/19/c_136377715.htm

XICHANG, Sichuan, June 19 (Xinhua) -- Communications satellite Zhongxing-9A, which was launched aboard the Long March-3B carrier rocket from southwest China's Xichang Satellite Launch Center at 12:11 a.m. Monday, has failed to enter the preset orbit.

Abnormal performance was identified during the third phase of the rocket launch, said the China Aerospace Science and Technology Corporation (CASC) Monday.

The exact reason for the failure is under investigation and related parties are taking measures to address the problem and send the satellite into the correct orbit.

The solar panels and communication antennae, however, have been deployed and the satellite system is operating under normal conditions, according to the CASC.

Offline eeergo

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Orbit data now in:

42763/2017-035A: 193 x 16357 km x 25.68 deg.
42764/2017-035B: 192 x 16358 km x 25.68 deg.

I'm not even sure that's salvageable.... :-\

That would make a dV to GEO of ~2100 m/s. Assuming a standard GTO with dV~1700 m/s, there is a ~400 m/s shortfall. This is about the dV budget for 8-10 years of GEO orbit- and station-keeping. Unless they can come up with creative ways of salvaging the orbit at the expense of less lifetime/fuel ( la Asiasat 3), it looks like a major loss. Of course, this bird may not be insured being a Government payload, so maybe they'll try to squeeze as much life out of it as they can, rather than ditch it to claim the insurance money.
-DaviD-

Offline input~2

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2017-035A    42763    CHINASAT 9A    294.22min    25.67    16361km    190km
2017-035B    42764    CZ-3B R/B         294.15min    25.68    16353km    193km

Offline input~2

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Rare pictures of the launch courtesy of Swiss watch Tag Heuer's cooperation with CASC
source

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