Observation information
- date-obs: 2017-01-21
- time-obs: 02:13:16.905700000
- date-end: 2017-01-21
- time-end: 04:24:05.094500000
- obs_id: A02_090T01_9000000970
- exposure: 3172.30864585
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000970_07120cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07120cztM0_level2_quad_clean.evt
|
| Size (bytes) | 482,120,640 | 79,441,920 |
| Size | 459.8 MB
| 75.8 MB
|
| Events in quadrant A | 3,197,859 | 499,567 |
| Events in quadrant B | 3,449,479 | 512,131 |
| Events in quadrant C | 3,334,370 | 493,793 |
| Events in quadrant D | 4,184,285 | 452,819 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13522 | 3 |
| B | 0 | 14209 | 2 |
| C | 0 | 13955 | 2 |
| D | 0 | 16506 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6408 | 20 | 0.312110% |
| B | 6408 | 72 | 1.123596% |
| C | 6408 | 56 | 0.873908% |
| D | 6408 | 235 | 3.667291% |
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 | 7698 | 6409 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7698 | 6409 | 16 | 16 | 0.21% | 0.25% |  |
| C | 7698 | 6408 | 36 | 36 | 0.47% | 0.56% |  |
| D | 7698 | 6409 | 179 | 179 | 2.33% | 2.79% |  |
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 | 14 | 238 | 61846 | 373.88 | 803 | 790 | 163.3 |
| A | 8 | 15 | 37925 | 227.4 | 803 | 790 | 163.3 |
| A | 0 | 226 | 7721 | 42.44 | 803 | 790 | 163.3 |
| B | 3 | 220 | 140788 | 913.16 | 820 | 804 | 153.3 |
| B | 0 | 214 | 65105 | 419.45 | 820 | 804 | 153.3 |
| B | 4 | 81 | 27254 | 172.54 | 820 | 804 | 153.3 |
| C | 4 | 254 | 268380 | 1477.82 | 783 | 790 | 181.1 |
| C | 10 | 22 | 6933 | 33.93 | 783 | 790 | 181.1 |
| C | 13 | 61 | 6253 | 30.17 | 783 | 790 | 181.1 |
| D | 8 | 195 | 377871 | 1997.94 | 766 | 742 | 188.8 |
| D | 12 | 233 | 336282 | 1777.61 | 766 | 742 | 188.8 |
| D | 2 | 216 | 329985 | 1744.25 | 766 | 742 | 188.8 |
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 |  |