Solar b launch operations scenarios
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Solar-B Launch Operations Scenarios. ISAS/JAXA Solar-B project Prepared by T. Shimizu For Wallops face-to-face meeting. Launch operation. Solar-B will be launched from USC (Kagoshima Uchinoura Space Center, Japan). Launch window: 21:32:46-21:41:04 UT

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Solar-B Launch Operations Scenarios

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Solar b launch operations scenarios

Solar-B Launch Operations Scenarios

ISAS/JAXA Solar-B project

Prepared by T. Shimizu

For Wallops face-to-face meeting


Launch operation

Launch operation


Solar b launch operations scenarios

Solar-B will be launched from USC (Kagoshima Uchinoura Space Center, Japan).

Launch window: 21:32:46-21:41:04 UT

in 23 August 2006 to 26 September 2006.

The initial orbit to be installed by a M-V rocket is as follows:

W: longitude of ascending (north-bound) node,

which defines at what longitude Solar-B crosses the earth equator


Solar b launch operations scenarios

3-stage engine burn out

Satellite separation

Sun

Start rate dumping and search sun

Complete sun acquisition by

Complete SAP deployment

Start SAP deployment


Solar b launch operations scenarios

Times given here are not final

Launch case: 23 Aug 2006

Visible window

S/C Events

Actions at station

Station

(UT)

JAXA USC

X=21:32:46 Lift off

~21:40

21:41:16 Satellite separation

21:44:01 Start attitude RSA control mode

(rate dumping and search the sun)

(RSA= RCS sun acquisition mode)

JAXA PER

21:49-21:56

Check orbit and status

Complete sun acquisition (Attitude directed to sun)

22:06:01 Start deployment of solar array paddle (SAP)

22:09:23 Resume attitude RSA control mode

22:12 Complete sun acquisition (Attitude directed to sun)

JAXA AGO

Confirm SAP deployment, sun acquisition, power supply SHNT mode

22:18-22:27

If off-nominal cases, may perform a recovery/trouble-shooting procedure

Note: AGO (U.Chili) measures El/Az

NASA WPS

Confirm sun acquisition mode, power supply SHNT mode

22:37-22:46

If off-nominal cases, may perform a recovery/trouble-shooting procedure

Backup for AGO Rev.0

23:47:46 Fine sun sensors (UFSS) & Star tracker (STT) ON

23:47:49 Enable telescopes’ survival heaters

JAXA AGO

23:50-23:59

Confirm UFSS/STT ON, telescopes’ survival heaters

If off-nominal cases, may perform a recovery/trouble-shooting procedure


Solar b launch operations scenarios

Solar-B Battery

In case that the solar array paddle is not deployed,

the battery can supply the power for 160 min.


Orbit maneuvers for sun sync polar orbit

Orbit maneuvers for sun-sync. polar orbit


Solar b launch operations scenarios

Solar-B will be finally installed to the sun-synchronous polar orbit with maneuver operation in the next page.


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