Observation information
- date-obs: 2023-07-28
- time-obs: 13:05:08.809200000
- date-end: 2023-07-28
- time-end: 15:07:45.805800000
- obs_id: A12_102T01_9000005798
- exposure: 4914.80552316
- 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_9000005798_42344cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005798_42344cztM0_level2_quad_clean.evt
|
| Size (bytes) | 332,821,440 | 95,800,320 |
| Size | 317.4 MB
| 91.4 MB
|
| Events in quadrant A | 3,032,940 | 663,519 |
| Events in quadrant B | 2,753,851 | 662,467 |
| Events in quadrant C | 2,545,380 | 639,264 |
| Events in quadrant D | 3,582,241 | 571,257 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12270 | 2 |
| B | 0 | 11511 | 2 |
| C | 0 | 10581 | 2 |
| D | 0 | 14164 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5207 | 26 | 0.499328% |
| B | 5207 | 70 | 1.344344% |
| C | 5207 | 2 | 0.038410% |
| D | 5206 | 263 | 5.051863% |
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 | 7300 | 5208 | 10 | 10 | 0.14% | 0.19% |  |
| B | 7300 | 5208 | 42 | 42 | 0.58% | 0.81% |  |
| C | 7300 | 5208 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7299 | 5207 | 224 | 224 | 3.07% | 4.30% |  |
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 | 10 | 83 | 586380 | 4774.0 | 605 | 595 | 122.7 |
| A | 13 | 248 | 60815 | 490.78 | 605 | 595 | 122.7 |
| A | 2 | 79 | 29102 | 232.32 | 605 | 595 | 122.7 |
| B | 4 | 81 | 208151 | 1861.16 | 593 | 579 | 111.5 |
| B | 5 | 172 | 82847 | 737.64 | 593 | 579 | 111.5 |
| B | 0 | 230 | 38335 | 338.53 | 593 | 579 | 111.5 |
| C | 15 | 214 | 220104 | 1617.99 | 592 | 598 | 135.7 |
| C | 15 | 111 | 6806 | 45.76 | 592 | 598 | 135.7 |
| C | 12 | 251 | 4694 | 30.19 | 592 | 598 | 135.7 |
| D | 12 | 233 | 448654 | 3198.98 | 583 | 569 | 140.1 |
| D | 5 | 222 | 237701 | 1692.94 | 583 | 569 | 140.1 |
| D | 1 | 52 | 206042 | 1466.92 | 583 | 569 | 140.1 |
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 |  |