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Solar-B Launch Operations Scenarios ISAS/JAXA Solar-B project Prepared by T. Shimizu For Wallops face-to-face meeting.

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Presentation on theme: "Solar-B Launch Operations Scenarios ISAS/JAXA Solar-B project Prepared by T. Shimizu For Wallops face-to-face meeting."— Presentation transcript:

1 Solar-B Launch Operations Scenarios ISAS/JAXA Solar-B project Prepared by T. Shimizu For Wallops face-to-face meeting

2 Launch operation

3  longitude of ascending (north-bound) node, which defines at what longitude Solar-B crosses the earth equator 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:

4 Sun 3-stage engine burn out Satellite separation Start rate dumping and search sun Complete sun acquisition by Start SAP deployment Complete SAP deployment

5 JAXA USC JAXA PER JAXA AGO NASA WPS JAXA AGO Station X=21:32:46 Lift off 21:49-21:56 Visible window 22:18-22:27 22:37-22:46 23:50-23:59 ~21:40 S/C Events Actions at station 21:41:16 Satellite separation 21:44:01 Start attitude RSA control mode (rate dumping and search the 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) 23:47:46 Fine sun sensors (UFSS) & Star tracker (STT) ON 23:47:49 Enable telescopes’ survival heaters Times given here are not final Launch case: 23 Aug 2006 Complete sun acquisition (Attitude directed to sun) Confirm SAP deployment, sun acquisition, power supply SHNT mode Confirm sun acquisition mode, power supply SHNT mode Confirm UFSS/STT ON, telescopes’ survival heaters If off-nominal cases, may perform a recovery/trouble-shooting procedure Note: AGO (U.Chili) measures El/Az (UT) (RSA= RCS sun acquisition mode) Check orbit and status Backup for AGO Rev.0

6 Solar-B Battery In case that the solar array paddle is not deployed, the battery can supply the power for 160 min.

7 Orbit maneuvers for sun-sync. polar orbit

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

9


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