Observation information
- date-obs: 2025-09-25
- time-obs: 03:06:45.235200000
- date-end: 2025-09-25
- time-end: 08:47:23.181800000
- obs_id: A14_041T01_9000006510
- exposure: 17298.2009316
- 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/AS1A14_041T01_9000006510_54060cztM0_level2.fits
| modeM0/AS1A14_041T01_9000006510_54060cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,471,599,360 | 253,935,360 |
| Size | 1.4 GB
| 242.2 MB
|
| Events in quadrant A | 9,803,971 | 1,700,437 |
| Events in quadrant B | 16,277,319 | 1,716,685 |
| Events in quadrant C | 14,561,421 | 1,504,675 |
| Events in quadrant D | 12,357,885 | 1,453,814 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 388 | 4 |
| B | 0 | 388 | 2 |
| C | 0 | 388 | 2 |
| D | 0 | 388 | 4 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43981 | 394 |
| B | 0 | 62368 | 464 |
| C | 0 | 57391 | 462 |
| D | 0 | 51256 | 481 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19047 | 632 | 3.318108% |
| B | 19046 | 1874 | 9.839336% |
| C | 19051 | 1879 | 9.862999% |
| D | 19050 | 1099 | 5.769029% |
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 | 20365 | 19095 | 331 | 331 | 1.63% | 1.73% |  |
| B | 20333 | 19084 | 1067 | 1067 | 5.25% | 5.59% |  |
| C | 20393 | 19099 | 1542 | 1542 | 7.56% | 8.07% |  |
| D | 20343 | 19088 | 902 | 902 | 4.43% | 4.73% |  |
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 | 15 | 174 | 1333471 | 2721.6 | 1993 | 1945 | 489.2 |
| A | 0 | 8 | 267883 | 543.57 | 1993 | 1945 | 489.2 |
| A | 4 | 249 | 136746 | 275.53 | 1993 | 1945 | 489.2 |
| B | 5 | 250 | 4618502 | 11206.77 | 1936 | 1866 | 412.0 |
| B | 15 | 20 | 1938156 | 4700.3 | 1936 | 1866 | 412.0 |
| B | 0 | 213 | 762739 | 1847.0 | 1936 | 1866 | 412.0 |
| C | 15 | 177 | 5280323 | 10313.56 | 1873 | 1857 | 511.8 |
| C | 15 | 161 | 375844 | 730.73 | 1873 | 1857 | 511.8 |
| C | 15 | 148 | 354388 | 688.81 | 1873 | 1857 | 511.8 |
| D | 8 | 176 | 1672426 | 3106.52 | 1900 | 1817 | 537.8 |
| D | 3 | 12 | 1614054 | 2997.98 | 1900 | 1817 | 537.8 |
| D | 14 | 20 | 667849 | 1238.5 | 1900 | 1817 | 537.8 |
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 |  |