Observation information
- date-obs: 2018-09-14
- time-obs: 04:35:15.199600000
- date-end: 2018-09-14
- time-end: 08:16:07.189900000
- obs_id: T02_091T01_9000002368
- exposure: 7308.06817423
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_091T01_9000002368_16017cztM0_level2.evt
| modeM0/AS1T02_091T01_9000002368_16017cztM0_level2_quad_clean.evt
|
| Size (bytes) | 814,049,280 | 161,976,960 |
| Size | 776.3 MB
| 154.5 MB
|
| Events in quadrant A | 5,627,247 | 1,038,131 |
| Events in quadrant B | 6,489,327 | 1,046,116 |
| Events in quadrant C | 5,667,147 | 1,014,795 |
| Events in quadrant D | 6,069,488 | 989,455 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 240 | 0 |
| B | 0 | 240 | 0 |
| C | 0 | 240 | 0 |
| D | 0 | 240 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24279 | 3 |
| B | 0 | 26679 | 2 |
| C | 0 | 24228 | 2 |
| D | 0 | 25847 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11817 | 89 | 0.753152% |
| B | 11817 | 267 | 2.259457% |
| C | 11817 | 107 | 0.905475% |
| D | 11817 | 140 | 1.184734% |
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 | 13253 | 11818 | 1 | 1 | 0.01% | 0.01% |  |
| B | 13253 | 11818 | 157 | 157 | 1.18% | 1.33% |  |
| C | 13253 | 11818 | 0 | 0 | 0.00% | 0.00% |  |
| D | 13253 | 11818 | 83 | 83 | 0.63% | 0.70% |  |
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 | 28790 | 93.4 | 1443 | 1417 | 293.1 |
| A | 12 | 96 | 20154 | 63.93 | 1443 | 1417 | 293.1 |
| A | 15 | 157 | 17687 | 55.52 | 1443 | 1417 | 293.1 |
| B | 4 | 173 | 575319 | 2085.91 | 1435 | 1402 | 275.1 |
| B | 15 | 222 | 100923 | 361.71 | 1435 | 1402 | 275.1 |
| B | 5 | 172 | 37433 | 130.96 | 1435 | 1402 | 275.1 |
| C | 14 | 238 | 212296 | 651.19 | 1380 | 1393 | 323.9 |
| C | 3 | 233 | 65482 | 197.88 | 1380 | 1393 | 323.9 |
| C | 10 | 22 | 13945 | 38.75 | 1380 | 1393 | 323.9 |
| D | 2 | 14 | 536104 | 1542.18 | 1398 | 1355 | 346.7 |
| D | 2 | 152 | 114781 | 327.11 | 1398 | 1355 | 346.7 |
| D | 12 | 110 | 69408 | 196.26 | 1398 | 1355 | 346.7 |
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 |  |