Observation information
- date-obs: 2025-09-12
- time-obs: 02:55:34.865400000
- date-end: 2025-09-12
- time-end: 04:59:11.848500000
- obs_id: A14_057T04_9000006508
- exposure: 5634.63803381
- sourceid: Abell_2142
- observer: divya_astro
- ra_pnt: 239.5833
- dec_pnt: 27.23341
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_057T04_9000006508_53865cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53865cztM0_level2_quad_clean.evt
|
| Size (bytes) | 562,397,760 | 93,697,920 |
| Size | 536.3 MB
| 89.4 MB
|
| Events in quadrant A | 3,195,710 | 632,652 |
| Events in quadrant B | 3,688,969 | 669,729 |
| Events in quadrant C | 8,058,502 | 520,148 |
| Events in quadrant D | 5,356,892 | 548,534 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14336 | 1 |
| B | 0 | 15617 | 1 |
| C | 0 | 28596 | 1 |
| D | 0 | 20597 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6677 | 90 | 1.347911% |
| B | 6678 | 198 | 2.964960% |
| C | 6678 | 1337 | 20.020964% |
| D | 6678 | 459 | 6.873315% |
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 | 7417 | 6678 | 11 | 11 | 0.15% | 0.16% |  |
| B | 7418 | 6679 | 49 | 49 | 0.66% | 0.73% |  |
| C | 7418 | 6679 | 1033 | 1033 | 13.93% | 15.47% |  |
| D | 7418 | 6679 | 460 | 460 | 6.20% | 6.89% |  |
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 | 8 | 249 | 180905 | 1004.58 | 733 | 715 | 179.4 |
| A | 4 | 249 | 61667 | 339.82 | 733 | 715 | 179.4 |
| A | 3 | 62 | 28251 | 153.52 | 733 | 715 | 179.4 |
| B | 5 | 185 | 324634 | 2049.62 | 725 | 700 | 158.0 |
| B | 0 | 213 | 234951 | 1482.17 | 725 | 700 | 158.0 |
| B | 4 | 81 | 96241 | 604.51 | 725 | 700 | 158.0 |
| C | 15 | 224 | 2552001 | 14018.03 | 661 | 657 | 182.0 |
| C | 15 | 209 | 2361099 | 12969.14 | 661 | 657 | 182.0 |
| C | 12 | 2 | 153360 | 839.01 | 661 | 657 | 182.0 |
| D | 8 | 176 | 2260613 | 11585.96 | 691 | 661 | 195.1 |
| D | 2 | 249 | 169037 | 863.2 | 691 | 661 | 195.1 |
| D | 3 | 12 | 46132 | 233.11 | 691 | 661 | 195.1 |
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 |  |