Observation information
- date-obs: 2023-04-22
- time-obs: 16:01:52.506900000
- date-end: 2023-04-22
- time-end: 18:16:24.503900000
- obs_id: A12_102T01_9000005576
- exposure: 4571.74875492
- 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_9000005576_40909cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40909cztM0_level2_quad_clean.evt
|
| Size (bytes) | 318,971,520 | 88,464,960 |
| Size | 304.2 MB
| 84.4 MB
|
| Events in quadrant A | 2,781,267 | 606,454 |
| Events in quadrant B | 3,070,571 | 593,615 |
| Events in quadrant C | 2,520,649 | 593,318 |
| Events in quadrant D | 3,054,030 | 542,772 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11347 | 3 |
| B | 0 | 12416 | 2 |
| C | 0 | 10436 | 2 |
| D | 0 | 12426 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4885 | 34 | 0.696008% |
| B | 4885 | 281 | 5.752303% |
| C | 4885 | 49 | 1.003071% |
| D | 4885 | 77 | 1.576254% |
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 | 6948 | 4886 | 12 | 12 | 0.17% | 0.25% |  |
| B | 6948 | 4886 | 209 | 209 | 3.01% | 4.28% |  |
| C | 6948 | 4886 | 36 | 36 | 0.52% | 0.74% |  |
| D | 6948 | 4886 | 64 | 64 | 0.92% | 1.31% |  |
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 | 513613 | 4479.39 | 559 | 549 | 114.5 |
| A | 7 | 3 | 60988 | 527.67 | 559 | 549 | 114.5 |
| A | 12 | 189 | 21959 | 186.92 | 559 | 549 | 114.5 |
| B | 5 | 32 | 639039 | 6267.38 | 546 | 534 | 101.9 |
| B | 5 | 255 | 115535 | 1128.82 | 546 | 534 | 101.9 |
| B | 4 | 171 | 86601 | 844.81 | 546 | 534 | 101.9 |
| C | 15 | 214 | 208457 | 1621.63 | 555 | 559 | 128.2 |
| C | 0 | 10 | 130289 | 1011.91 | 555 | 559 | 128.2 |
| C | 14 | 254 | 5171 | 35.97 | 555 | 559 | 128.2 |
| D | 12 | 79 | 462711 | 3483.24 | 548 | 534 | 132.7 |
| D | 12 | 233 | 102736 | 770.26 | 548 | 534 | 132.7 |
| D | 2 | 249 | 98442 | 737.89 | 548 | 534 | 132.7 |
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 |  |