Observation information
- date-obs: 2023-08-11
- time-obs: 09:16:48.545400000
- date-end: 2023-08-11
- time-end: 11:23:30.541300000
- obs_id: A12_102T01_9000005812
- exposure: 4776.28042543
- 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_9000005812_42549cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005812_42549cztM0_level2_quad_clean.evt
|
| Size (bytes) | 332,968,320 | 83,367,360 |
| Size | 317.5 MB
| 79.5 MB
|
| Events in quadrant A | 2,718,101 | 568,817 |
| Events in quadrant B | 2,374,394 | 573,534 |
| Events in quadrant C | 2,283,304 | 542,808 |
| Events in quadrant D | 4,556,858 | 485,378 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11057 | 2 |
| B | 0 | 10662 | 2 |
| C | 0 | 10106 | 2 |
| D | 0 | 17035 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5042 | 11 | 0.218167% |
| B | 5042 | 57 | 1.130504% |
| C | 5042 | 2 | 0.039667% |
| D | 5042 | 334 | 6.624355% |
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 | 7075 | 5043 | 3 | 3 | 0.04% | 0.06% |  |
| B | 7075 | 5043 | 41 | 41 | 0.58% | 0.81% |  |
| C | 7075 | 5043 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7075 | 5043 | 316 | 316 | 4.47% | 6.27% |  |
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 | 538436 | 4872.58 | 544 | 534 | 110.4 |
| A | 2 | 79 | 39942 | 356.98 | 544 | 534 | 110.4 |
| A | 13 | 248 | 25105 | 222.58 | 544 | 534 | 110.4 |
| B | 5 | 172 | 180898 | 1749.09 | 537 | 523 | 103.1 |
| B | 0 | 245 | 51803 | 497.26 | 537 | 523 | 103.1 |
| B | 15 | 85 | 18594 | 175.23 | 537 | 523 | 103.1 |
| C | 15 | 214 | 216159 | 1763.76 | 528 | 530 | 122.3 |
| C | 14 | 254 | 6670 | 50.22 | 528 | 530 | 122.3 |
| C | 13 | 61 | 3559 | 24.78 | 528 | 530 | 122.3 |
| D | 2 | 16 | 1107309 | 8646.58 | 523 | 509 | 128.0 |
| D | 2 | 249 | 574159 | 4481.49 | 523 | 509 | 128.0 |
| D | 1 | 52 | 276715 | 2157.78 | 523 | 509 | 128.0 |
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 |  |