Observation information
- date-obs: 2023-07-26
- time-obs: 12:06:48.872200000
- date-end: 2023-07-26
- time-end: 14:23:36.871500000
- obs_id: A12_102T01_9000005794
- exposure: 5003.77451277
- 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_42314cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005794_42314cztM0_level2_quad_clean.evt
|
| Size (bytes) | 319,155,840 | 95,368,320 |
| Size | 304.4 MB
| 91.0 MB
|
| Events in quadrant A | 3,063,237 | 656,332 |
| Events in quadrant B | 2,530,885 | 662,163 |
| Events in quadrant C | 2,581,442 | 630,533 |
| Events in quadrant D | 3,233,334 | 574,415 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29 | 0 |
| B | 0 | 29 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 30 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 108 | 0 |
| B | 0 | 108 | 0 |
| C | 0 | 108 | 0 |
| D | 0 | 108 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12333 | 2 |
| B | 0 | 10923 | 2 |
| C | 0 | 10709 | 2 |
| D | 0 | 13017 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5198 | 26 | 0.500192% |
| B | 5198 | 18 | 0.346287% |
| C | 5198 | 7 | 0.134667% |
| D | 5198 | 156 | 3.001154% |
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 | 7231 | 5199 | 8 | 8 | 0.11% | 0.15% |  |
| B | 7231 | 5199 | 12 | 12 | 0.17% | 0.23% |  |
| C | 7231 | 5199 | 3 | 3 | 0.04% | 0.06% |  |
| D | 7231 | 5199 | 133 | 133 | 1.84% | 2.56% |  |
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 | 580648 | 4715.48 | 609 | 599 | 123.0 |
| A | 7 | 3 | 65400 | 526.8 | 609 | 599 | 123.0 |
| A | 13 | 248 | 56114 | 451.31 | 609 | 599 | 123.0 |
| B | 15 | 35 | 52392 | 455.92 | 599 | 582 | 113.6 |
| B | 15 | 85 | 40045 | 347.27 | 599 | 582 | 113.6 |
| B | 5 | 255 | 35224 | 304.85 | 599 | 582 | 113.6 |
| C | 15 | 214 | 219180 | 1610.01 | 593 | 598 | 135.8 |
| C | 15 | 111 | 26946 | 194.07 | 593 | 598 | 135.8 |
| C | 12 | 249 | 16590 | 117.79 | 593 | 598 | 135.8 |
| D | 1 | 52 | 253193 | 1772.68 | 589 | 572 | 142.5 |
| D | 12 | 233 | 178452 | 1248.21 | 589 | 572 | 142.5 |
| D | 13 | 249 | 103154 | 719.83 | 589 | 572 | 142.5 |
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 |  |