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| Stack Data | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Start | Stop | ee50 | ee80 | Hefi Focus | Mars Focus | Outside Temp | Dome Temp | Truss Temp | Wind Direction | Wind Speed | Stack Type | |
| 01:56 | 02:58 | 0.52 | 0.79 | 1055 | -1930 | 25.4 | 25.8 | 25.8 | 138 | 15 | First of Night | |
| 07:47 | 08:20 | First of Night | ||||||||||
| ↪ Comments | No measurement | |||||||||||
| 10:55 | 11:38 | 0.48 | 0.74 | 1010 | +1268 | 22.5 | 22.5 | 22.7 | 220 | 7 | First of Night | |
| Problem Reports | ||||
|---|---|---|---|---|
| PR Number | Times | Time Lost | Description | Response |
| 4045 | 07:00-07:44 | 00:44 | Any attempted tracker motion triggered HFC fault. When operated from ControlDesk in Eng Mode it was cleat that the brakes were not able to release, again. The brake release problem lasted through two shutdowns and restarts of dSPACE/servo cabinets, then 15 minutes later it magically fixed itself with no effort from anyone. No error lights displayed anywhere during this problem. | |
| 4054 | 09:53-09:55, 10:37 - 10:39 | 00:04 | Tracks sometimes prematurely abort with no error lights or any other indications of what might have gone wrong. When this happens they also inevitably fail to reacquire, and a "failed to acquire trajectory" error message displays. Have to restart TCS to get them to reacquire. | |
| 4055 | 12:50-12:50 | 00:00 | Moving to stow at slow slew speed cause tracker skew. Worried that something is up with X slew torque coupler again. | |
| Ops Comments | none |
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| TO Comments | Mirror team: Segment 15 is having problems tipping. Took it out of SAMS and left it out all night. |
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| RA Comments | none |
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| Observations | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| File | Target/QID | Exp Start | Exposure | Overhead | Program | Instrument Configuration | Data Type | IQ | Dimm | SkySBrt | Skytrans | SNR | Comments | Charge | |