Observation information
- date-obs: 2023-10-16
- time-obs: 17:14:28.363000000
- date-end: 2023-10-16
- time-end: 19:17:08.357000000
- obs_id: A12_102T01_9000005876
- exposure: 542.853481114
- 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_9000005876_43532cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005876_43532cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,190,136,960 | 73,696,320 |
| Size | 1.1 GB
| 70.3 MB
|
| Events in quadrant A | 8,897,895 | 711,624 |
| Events in quadrant B | 8,361,202 | 732,244 |
| Events in quadrant C | 14,868,182 | 337,315 |
| Events in quadrant D | 11,455,122 | 15,122 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30718 | 1 |
| B | 0 | 29169 | 1 |
| C | 0 | 48285 | 1 |
| D | 0 | 38270 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6141 | 1397 | 22.748738% |
| B | 6141 | 1445 | 23.530370% |
| C | 6141 | 5018 | 81.713076% |
| D | 6140 | 6140 | 100.000000% |
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 | 7361 | 6142 | 1013 | 1013 | 13.76% | 16.49% |  |
| B | 7360 | 6141 | 1159 | 1159 | 15.75% | 18.87% |  |
| C | 7360 | 6140 | 4903 | 4903 | 66.62% | 79.85% |  |
| D | 7359 | 6139 | 2756 | 2756 | 37.45% | 44.89% |  |
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 | 0 | 228 | 2316219 | 17013.76 | 670 | 658 | 136.1 |
| A | 15 | 222 | 1770937 | 13007.26 | 670 | 658 | 136.1 |
| A | 10 | 83 | 719144 | 5279.13 | 670 | 658 | 136.1 |
| B | 3 | 42 | 3218449 | 25454.61 | 670 | 652 | 126.4 |
| B | 3 | 25 | 1901455 | 15036.43 | 670 | 652 | 126.4 |
| B | 5 | 235 | 174752 | 1377.23 | 670 | 652 | 126.4 |
| C | 15 | 142 | 5542217 | 72238.27 | 326 | 328 | 76.7 |
| C | 15 | 174 | 4523412 | 58958.19 | 326 | 328 | 76.7 |
| C | 15 | 190 | 1272506 | 16582.78 | 326 | 328 | 76.7 |
| D | 4 | 216 | 6094168 | 173460.15 | 41 | 37 | 35.1 |
| D | 4 | 212 | 648306 | 18451.99 | 41 | 37 | 35.1 |
| D | 4 | 200 | 629451 | 17915.31 | 41 | 37 | 35.1 |
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 |  |