Observation information
- date-obs: 2024-08-01
- time-obs: 15:59:35.201500000
- date-end: 2024-08-01
- time-end: 18:23:52.190800000
- obs_id: A13_081T01_9000006354
- exposure: 5890.76225084
- 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_47832cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47832cztM0_level2_quad_clean.evt
|
| Size (bytes) | 815,230,080 | 121,121,280 |
| Size | 777.5 MB
| 115.5 MB
|
| Events in quadrant A | 8,345,239 | 857,391 |
| Events in quadrant B | 5,409,209 | 858,054 |
| Events in quadrant C | 3,895,915 | 823,143 |
| Events in quadrant D | 11,887,034 | 553,723 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30470 | 0 |
| B | 0 | 22389 | 0 |
| C | 0 | 18010 | 0 |
| D | 0 | 41078 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8276 | 197 | 2.380377% |
| B | 8276 | 268 | 3.238279% |
| C | 8277 | 119 | 1.437719% |
| D | 8277 | 2697 | 32.584270% |
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 | 8657 | 8277 | 5 | 5 | 0.06% | 0.06% |  |
| B | 8657 | 8278 | 101 | 101 | 1.17% | 1.22% |  |
| C | 8658 | 8279 | 84 | 84 | 0.97% | 1.01% |  |
| D | 8658 | 8279 | 2916 | 2916 | 33.68% | 35.22% |  |
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 | 4615233 | 25716.99 | 871 | 852 | 179.4 |
| A | 0 | 31 | 334448 | 1859.21 | 871 | 852 | 179.4 |
| A | 13 | 248 | 19214 | 102.34 | 871 | 852 | 179.4 |
| B | 0 | 186 | 1211442 | 7158.02 | 864 | 836 | 169.1 |
| B | 0 | 200 | 310892 | 1833.29 | 864 | 836 | 169.1 |
| B | 5 | 32 | 269237 | 1586.99 | 864 | 836 | 169.1 |
| C | 12 | 2 | 460601 | 2269.45 | 860 | 862 | 202.6 |
| C | 14 | 254 | 42755 | 206.8 | 860 | 862 | 202.6 |
| C | 12 | 250 | 23658 | 112.53 | 860 | 862 | 202.6 |
| D | 12 | 33 | 4277565 | 22490.54 | 755 | 732 | 190.2 |
| D | 12 | 2 | 4177362 | 21963.6 | 755 | 732 | 190.2 |
| D | 7 | 67 | 223960 | 1173.89 | 755 | 732 | 190.2 |
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 |  |