Observation information
- date-obs: 2023-07-26
- time-obs: 14:05:08.871900000
- date-end: 2023-07-26
- time-end: 16:07:43.870400000
- obs_id: A12_102T01_9000005794
- exposure: 4911.84104347
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_102T01_9000005794_42315cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005794_42315cztM0_level2_quad_clean.evt
|
| Size (bytes) | 308,808,000 | 93,677,760 |
| Size | 294.5 MB
| 89.3 MB
|
| Events in quadrant A | 2,957,261 | 642,922 |
| Events in quadrant B | 2,506,912 | 646,884 |
| Events in quadrant C | 2,494,560 | 622,001 |
| Events in quadrant D | 3,076,036 | 568,881 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11900 | 2 |
| B | 0 | 10783 | 2 |
| C | 0 | 10364 | 2 |
| D | 0 | 12522 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5085 | 19 | 0.373648% |
| B | 5085 | 35 | 0.688299% |
| C | 5084 | 6 | 0.118017% |
| D | 5084 | 119 | 2.340677% |
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 | 7208 | 5086 | 10 | 10 | 0.14% | 0.20% |  |
| B | 7208 | 5086 | 21 | 21 | 0.29% | 0.41% |  |
| C | 7207 | 5085 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7207 | 5085 | 102 | 102 | 1.42% | 2.01% |  |
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 | 10 | 83 | 577863 | 4827.49 | 588 | 578 | 119.6 |
| A | 7 | 3 | 56117 | 464.44 | 588 | 578 | 119.6 |
| A | 13 | 248 | 38305 | 315.49 | 588 | 578 | 119.6 |
| B | 0 | 245 | 81497 | 742.75 | 581 | 566 | 109.0 |
| B | 15 | 35 | 52479 | 476.44 | 581 | 566 | 109.0 |
| B | 3 | 112 | 34019 | 307.02 | 581 | 566 | 109.0 |
| C | 15 | 214 | 212006 | 1593.2 | 579 | 583 | 132.7 |
| C | 12 | 249 | 13239 | 95.37 | 579 | 583 | 132.7 |
| C | 15 | 111 | 4758 | 31.46 | 579 | 583 | 132.7 |
| D | 1 | 52 | 318202 | 2297.87 | 576 | 560 | 138.2 |
| D | 12 | 233 | 187189 | 1350.1 | 576 | 560 | 138.2 |
| D | 13 | 249 | 84477 | 607.07 | 576 | 560 | 138.2 |
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 |  |