Observation information
- date-obs: 2024-07-31
- time-obs: 22:25:45.283400000
- date-end: 2024-08-01
- time-end: 00:43:09.271800000
- obs_id: A13_081T01_9000006354
- exposure: 5067.54629421
- 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/AS1A13_081T01_9000006354_47820cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47820cztM0_level2_quad_clean.evt
|
| Size (bytes) | 546,923,520 | 101,471,040 |
| Size | 521.6 MB
| 96.8 MB
|
| Events in quadrant A | 6,656,089 | 694,987 |
| Events in quadrant B | 3,060,771 | 721,342 |
| Events in quadrant C | 2,737,007 | 694,851 |
| Events in quadrant D | 7,280,339 | 501,836 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23968 | 2 |
| B | 0 | 14034 | 2 |
| C | 0 | 13377 | 2 |
| D | 0 | 26337 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6585 | 208 | 3.158694% |
| B | 6585 | 30 | 0.455581% |
| C | 6585 | 8 | 0.121488% |
| D | 6585 | 1593 | 24.191344% |
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 | 7630 | 6586 | 110 | 110 | 1.44% | 1.67% |  |
| B | 7630 | 6585 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7630 | 6586 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7629 | 6584 | 1446 | 1446 | 18.95% | 21.96% |  |
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 | 3910676 | 27294.18 | 692 | 677 | 143.3 |
| A | 13 | 248 | 28442 | 193.82 | 692 | 677 | 143.3 |
| A | 14 | 235 | 21098 | 142.55 | 692 | 677 | 143.3 |
| B | 0 | 200 | 219023 | 1594.0 | 696 | 673 | 137.0 |
| B | 10 | 7 | 19238 | 135.53 | 696 | 673 | 137.0 |
| B | 0 | 186 | 17799 | 125.02 | 696 | 673 | 137.0 |
| C | 1 | 3 | 17436 | 102.9 | 690 | 692 | 162.7 |
| C | 12 | 2 | 17265 | 101.85 | 690 | 692 | 162.7 |
| C | 14 | 254 | 13319 | 77.6 | 690 | 692 | 162.7 |
| D | 12 | 2 | 1833688 | 12090.91 | 599 | 580 | 151.6 |
| D | 2 | 249 | 1320029 | 8702.89 | 599 | 580 | 151.6 |
| D | 12 | 3 | 1299860 | 8569.86 | 599 | 580 | 151.6 |
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 |  |