Observation information
- date-obs: 2018-09-12
- time-obs: 15:28:11.270300000
- date-end: 2018-09-12
- time-end: 17:53:29.266700000
- obs_id: T02_090T01_9000002360
- exposure: 2984.45487735
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_090T01_9000002360_15994cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002360_15994cztM0_level2_quad_clean.evt
|
| Size (bytes) | 514,650,240 | 76,351,680 |
| Size | 490.8 MB
| 72.8 MB
|
| Events in quadrant A | 3,431,723 | 478,257 |
| Events in quadrant B | 4,061,103 | 480,349 |
| Events in quadrant C | 4,186,424 | 463,120 |
| Events in quadrant D | 3,487,867 | 458,607 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14086 | 3 |
| B | 0 | 16263 | 2 |
| C | 0 | 16666 | 2 |
| D | 0 | 14535 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6183 | 106 | 1.714378% |
| B | 6183 | 204 | 3.299369% |
| C | 6183 | 266 | 4.302119% |
| D | 6183 | 101 | 1.633511% |
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 | 7529 | 6184 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7529 | 6184 | 72 | 72 | 0.96% | 1.16% |  |
| C | 7529 | 6184 | 81 | 81 | 1.08% | 1.31% |  |
| D | 7529 | 6184 | 11 | 11 | 0.15% | 0.18% |  |
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 | 9 | 143 | 17251 | 92.48 | 881 | 866 | 177.2 |
| A | 15 | 239 | 14439 | 76.61 | 881 | 866 | 177.2 |
| A | 12 | 96 | 9505 | 48.76 | 881 | 866 | 177.2 |
| B | 7 | 220 | 218686 | 1335.76 | 873 | 857 | 163.1 |
| B | 10 | 245 | 157774 | 962.24 | 873 | 857 | 163.1 |
| B | 4 | 216 | 98065 | 596.1 | 873 | 857 | 163.1 |
| C | 9 | 236 | 568130 | 2930.65 | 844 | 856 | 193.6 |
| C | 0 | 207 | 137238 | 704.58 | 844 | 856 | 193.6 |
| C | 14 | 238 | 131241 | 673.6 | 844 | 856 | 193.6 |
| D | 2 | 152 | 93352 | 438.49 | 866 | 844 | 211.0 |
| D | 12 | 218 | 59579 | 278.4 | 866 | 844 | 211.0 |
| D | 2 | 234 | 27652 | 127.07 | 866 | 844 | 211.0 |
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 |  |