Observation information
- date-obs: 2018-09-13
- time-obs: 21:22:12.215900000
- date-end: 2018-09-13
- time-end: 23:29:17.211200000
- obs_id: T02_090T01_9000002364
- exposure: 4770.77098937
- 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_9000002364_16013cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002364_16013cztM0_level2_quad_clean.evt
|
| Size (bytes) | 495,711,360 | 104,440,320 |
| Size | 472.7 MB
| 99.6 MB
|
| Events in quadrant A | 3,550,043 | 677,762 |
| Events in quadrant B | 3,703,347 | 683,652 |
| Events in quadrant C | 3,718,821 | 659,421 |
| Events in quadrant D | 3,555,824 | 645,187 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15073 | 2 |
| B | 0 | 15512 | 2 |
| C | 0 | 15306 | 2 |
| D | 0 | 15342 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7141 | 62 | 0.868226% |
| B | 7141 | 101 | 1.414368% |
| C | 7141 | 107 | 1.498390% |
| D | 7141 | 96 | 1.344350% |
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 | 7627 | 7143 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7627 | 7143 | 3 | 3 | 0.04% | 0.04% |  |
| C | 7627 | 7143 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7627 | 7143 | 32 | 32 | 0.42% | 0.45% |  |
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 | 157 | 28186 | 147.92 | 901 | 884 | 184.6 |
| A | 15 | 174 | 23737 | 123.82 | 901 | 884 | 184.6 |
| A | 3 | 80 | 14116 | 71.69 | 901 | 884 | 184.6 |
| B | 7 | 220 | 30568 | 171.2 | 908 | 888 | 173.4 |
| B | 10 | 245 | 23722 | 131.71 | 908 | 888 | 173.4 |
| B | 12 | 111 | 19275 | 106.06 | 908 | 888 | 173.4 |
| C | 3 | 233 | 141737 | 686.45 | 871 | 880 | 205.2 |
| C | 14 | 238 | 133518 | 646.4 | 871 | 880 | 205.2 |
| C | 0 | 207 | 25448 | 119.73 | 871 | 880 | 205.2 |
| D | 12 | 218 | 92183 | 424.35 | 876 | 853 | 215.2 |
| D | 2 | 152 | 52168 | 238.42 | 876 | 853 | 215.2 |
| D | 10 | 70 | 40517 | 184.29 | 876 | 853 | 215.2 |
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 |  |