SwRI CAPS ICO DOY 006 page
 
CAPS Checkout Report for 1999 DOY 006
from the desk of CAPS PI: Dave Young
During the off-pass period ELS and IBS continued to operate nominally. The actuator (ACT) was left operating at +/- 40 degrees of actuation. Although the ACT data product indicates unplanned rotational motions, other evidence suggests that the data are corrupted to some extent, possibly by the timing/synchronization anomaly that is occurring within the CPU2. The IMS TOF high voltages held steady during off-pass at +/- 9 kV.
The plan for DOY checkout was to turn off IBS, ELS, and ACT before proceeding to bring up the IMS TOF high voltages to their full operating levels of +/- 14.6 kV. During the shutdown of the ELS sensor the IMS TOF positive supply was inadvertently turned off. In order to maintain IMS safety we commanded the negative supply off as well with about a 15 minute delay. Investigation of the IMS HV off command indicated that the CAPS ECR with new commands for checkout included 3 new detector threshold commands for the 3 sensors. An error was found in the ECR and corrections were communicated to JPL. Unfortunately the corrections were not implemented at JPL so all 3 commands contained op code errors-one of which shut down the IMS TOF positive HV supply.
After checks of the CAPS state of health, the DOY 005 procedure to turn on the TOF supplies to +/- 9 kV was executed again successfully. The remainder of the procedure was then executed, bringing the IMS TOF up to its full operating voltage followed by the IMS detectors and ESA supplies. Detector background counts remained low with all IMS HV supplies operating, indicating excellent state of health of the sensor. The IBS and ELS sensors and ACT were then turned on near the end of the pass. At this point (1540 UTC) CAPS was declared fully operational and was left on in this state at the end of the pass.
Data quality and command response remained uniformly good throughout the activities. Our thanks to the JPL team for their support and professiona lism throughout this phase of CAPS ICO (more details and names when my brain unsnarls from the late night jet lag).
 
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ELS Data from DOY 005 (Playback), UTC: 20:25
DOY 005 Data
IBS Data from DOY 005 (Playback), UTC: 20:47
DOY 005 Data
Snapshot Data from DOY 006 (Playback), UTC: 00:32
DOY 006 Data
 
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Snapshot Data from DOY 006 (Playback), UTC: 00:58
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Snapshot Data from DOY 006, UTC: 03:06
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ELS Data from DOY 006, UTC: 03:42
ELS DOY 006 Data
 
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ELS Data from DOY 006, UTC: 03:43
ELS DOY 006 Data
Snapshot Data from DOY 006, UTC: 14:01
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Snapshot Data from DOY 006, UTC: 14:24
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Snapshot Data from DOY 006, UTC: 15:14
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Snapshot Data from DOY 006, UTC: 15:35
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Snapshot Data from DOY 006, UTC: 15:41
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Snapshot Data from DOY 006, UTC: 15:55
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Snapshot Data from DOY 006, UTC: 15:57
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