Observation information
- date-obs: 2020-09-24
- time-obs: 08:44:04.204500000
- date-end: 2020-09-24
- time-end: 10:46:55.201400000
- obs_id: A09_145T01_9000003900
- exposure: 3951.33938424
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003900_26987cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003900_26987cztM0_level2_quad_clean.evt
|
| Size (bytes) | 685,391,040 | 90,596,160 |
| Size | 653.6 MB
| 86.4 MB
|
| Events in quadrant A | 8,684,991 | 515,509 |
| Events in quadrant B | 3,430,366 | 606,655 |
| Events in quadrant C | 3,515,982 | 579,315 |
| Events in quadrant D | 4,651,415 | 553,548 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30536 | 0 |
| B | 0 | 14350 | 0 |
| C | 0 | 14586 | 0 |
| D | 0 | 18334 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7006 | 2254 | 32.172424% |
| B | 7007 | 81 | 1.155987% |
| C | 7006 | 98 | 1.398801% |
| D | 7006 | 269 | 3.839566% |
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 | 7371 | 7006 | 1531 | 1531 | 20.77% | 21.85% |  |
| B | 7372 | 7007 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7371 | 7006 | 6 | 6 | 0.08% | 0.09% |  |
| D | 7371 | 7006 | 189 | 189 | 2.56% | 2.70% |  |
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 | 14 | 235 | 5622606 | 36126.59 | 761 | 746 | 155.6 |
| A | 6 | 16 | 81894 | 521.46 | 761 | 746 | 155.6 |
| A | 5 | 168 | 27099 | 169.35 | 761 | 746 | 155.6 |
| B | 0 | 219 | 25586 | 147.8 | 869 | 848 | 167.4 |
| B | 12 | 111 | 20488 | 117.34 | 869 | 848 | 167.4 |
| B | 11 | 111 | 18486 | 105.38 | 869 | 848 | 167.4 |
| C | 14 | 238 | 133568 | 667.02 | 838 | 848 | 199.0 |
| C | 15 | 208 | 59353 | 294.03 | 838 | 848 | 199.0 |
| C | 2 | 16 | 28778 | 140.37 | 838 | 848 | 199.0 |
| D | 1 | 52 | 1103149 | 5499.19 | 835 | 814 | 200.5 |
| D | 2 | 250 | 211205 | 1049.57 | 835 | 814 | 200.5 |
| D | 12 | 233 | 119849 | 593.82 | 835 | 814 | 200.5 |
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 |  |