Observation information
- date-obs: 2015-10-16
- time-obs: 09:17:35.631900000
- date-end: 2015-10-16
- time-end: 11:26:19.633000000
- obs_id: P01_126T01_9000000030
- exposure: 3194.07805707
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000030_00271cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000030_00271cztM0_level2_quad_clean.evt
|
| Size (bytes) | 907,341,120 | 52,594,560 |
| Size | 865.3 MB
| 50.2 MB
|
| Events in quadrant A | 6,940,330 | 298,424 |
| Events in quadrant B | 6,884,313 | 303,092 |
| Events in quadrant C | 6,287,846 | 301,825 |
| Events in quadrant D | 6,990,723 | 293,123 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24624 | 3 |
| B | 0 | 24421 | 2 |
| C | 0 | 22684 | 2 |
| D | 0 | 24778 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5655 | 4 | 0.070734% |
| B | 5655 | 13 | 0.229885% |
| C | 5655 | 4 | 0.070734% |
| D | 5655 | 19 | 0.335986% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7360 | 5656 | 172 | 172 | 2.34% | 3.04% |  |
| B | 7360 | 5656 | 133 | 133 | 1.81% | 2.35% |  |
| C | 7360 | 5656 | 72 | 72 | 0.98% | 1.27% |  |
| D | 7360 | 5656 | 226 | 226 | 3.07% | 4.00% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 15 | 250 | 12042 | 25.78 | 1787 | 1767 | 398.6 |
| A | 15 | 127 | 7354 | 14.02 | 1787 | 1767 | 398.6 |
| A | 0 | 6 | 5839 | 10.21 | 1787 | 1767 | 398.6 |
| B | 15 | 54 | 50295 | 117.58 | 1761 | 1775 | 412.6 |
| B | 8 | 54 | 48401 | 112.99 | 1761 | 1775 | 412.6 |
| B | 5 | 46 | 31502 | 72.04 | 1761 | 1775 | 412.6 |
| C | 2 | 192 | 13834 | 27.37 | 1593 | 1650 | 445.1 |
| C | 15 | 208 | 9192 | 16.95 | 1593 | 1650 | 445.1 |
| C | 1 | 1 | 7460 | 13.05 | 1593 | 1650 | 445.1 |
| D | 6 | 212 | 273739 | 562.22 | 1550 | 1609 | 484.0 |
| D | 1 | 4 | 261936 | 537.84 | 1550 | 1609 | 484.0 |
| D | 10 | 154 | 177336 | 363.05 | 1550 | 1609 | 484.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |