Observation information
- date-obs: 2023-07-28
- time-obs: 23:03:33.792400000
- date-end: 2023-07-29
- time-end: 05:01:48.778000000
- obs_id: A12_102T01_9000005798
- exposure: 15435.2750325
- 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_42352cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005798_42352cztM0_level2_quad_clean.evt
|
| Size (bytes) | 912,271,680 | 254,531,520 |
| Size | 870.0 MB
| 242.7 MB
|
| Events in quadrant A | 8,267,392 | 1,694,931 |
| Events in quadrant B | 7,308,334 | 1,728,130 |
| Events in quadrant C | 7,360,188 | 1,682,862 |
| Events in quadrant D | 9,592,571 | 1,496,029 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54 | 0 |
| B | 0 | 54 | 0 |
| C | 0 | 54 | 0 |
| D | 0 | 54 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 330 | 0 |
| B | 0 | 330 | 0 |
| C | 0 | 330 | 0 |
| D | 0 | 328 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34302 | 4 |
| B | 0 | 33320 | 4 |
| C | 0 | 32435 | 4 |
| D | 0 | 39852 | 5 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16005 | 31 | 0.193689% |
| B | 16005 | 92 | 0.574820% |
| C | 16005 | 16 | 0.099969% |
| D | 16005 | 449 | 2.805373% |
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 | 21495 | 16009 | 9 | 9 | 0.04% | 0.06% |  |
| B | 21495 | 16009 | 42 | 42 | 0.20% | 0.26% |  |
| C | 21495 | 16009 | 5 | 5 | 0.02% | 0.03% |  |
| D | 21495 | 16009 | 419 | 419 | 1.95% | 2.62% |  |
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 | 1466537 | 4172.7 | 1733 | 1695 | 351.1 |
| A | 7 | 3 | 45430 | 124.58 | 1733 | 1695 | 351.1 |
| A | 13 | 248 | 27548 | 73.64 | 1733 | 1695 | 351.1 |
| B | 4 | 81 | 188938 | 572.18 | 1714 | 1662 | 327.3 |
| B | 5 | 172 | 150559 | 454.92 | 1714 | 1662 | 327.3 |
| B | 3 | 112 | 80491 | 240.85 | 1714 | 1662 | 327.3 |
| C | 15 | 214 | 658672 | 1673.97 | 1692 | 1698 | 392.5 |
| C | 15 | 111 | 69031 | 171.56 | 1692 | 1698 | 392.5 |
| C | 7 | 247 | 25471 | 60.57 | 1692 | 1698 | 392.5 |
| D | 5 | 222 | 1069061 | 2619.71 | 1677 | 1626 | 407.5 |
| D | 12 | 6 | 779749 | 1909.67 | 1677 | 1626 | 407.5 |
| D | 1 | 52 | 412373 | 1008.06 | 1677 | 1626 | 407.5 |
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 |  |