Observation information
- date-obs: 2018-09-13
- time-obs: 17:46:31.221900000
- date-end: 2018-09-13
- time-end: 19:59:45.217700000
- obs_id: T02_090T01_9000002360
- exposure: 3882.60804884
- 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_16010cztM0_level2.evt
| modeM0/AS1T02_090T01_9000002360_16010cztM0_level2_quad_clean.evt
|
| Size (bytes) | 469,586,880 | 93,170,880 |
| Size | 447.8 MB
| 88.9 MB
|
| Events in quadrant A | 3,369,671 | 602,363 |
| Events in quadrant B | 3,498,893 | 611,013 |
| Events in quadrant C | 3,522,060 | 590,605 |
| Events in quadrant D | 3,405,407 | 580,115 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13808 | 3 |
| B | 0 | 14396 | 2 |
| C | 0 | 14305 | 2 |
| D | 0 | 14159 | 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 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6273 | 87 | 1.386896% |
| B | 6273 | 97 | 1.546310% |
| C | 6273 | 138 | 2.199904% |
| D | 6273 | 99 | 1.578192% |
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 | 7509 | 6274 | 9 | 9 | 0.12% | 0.14% |  |
| B | 7509 | 6274 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7509 | 6275 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7509 | 6275 | 19 | 19 | 0.25% | 0.30% |  |
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 | 59116 | 335.45 | 853 | 836 | 173.7 |
| A | 13 | 210 | 16391 | 89.53 | 853 | 836 | 173.7 |
| A | 14 | 235 | 16081 | 87.75 | 853 | 836 | 173.7 |
| B | 10 | 245 | 48392 | 297.74 | 854 | 836 | 159.7 |
| B | 0 | 228 | 37340 | 228.55 | 854 | 836 | 159.7 |
| B | 4 | 216 | 35181 | 215.03 | 854 | 836 | 159.7 |
| C | 3 | 233 | 162607 | 846.29 | 827 | 835 | 191.2 |
| C | 14 | 238 | 128001 | 665.25 | 827 | 835 | 191.2 |
| C | 13 | 61 | 5934 | 26.67 | 827 | 835 | 191.2 |
| D | 12 | 218 | 160247 | 773.43 | 838 | 815 | 206.1 |
| D | 2 | 152 | 44520 | 212.02 | 838 | 815 | 206.1 |
| D | 2 | 234 | 26246 | 123.37 | 838 | 815 | 206.1 |
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 |  |