Observation information
- date-obs: 2025-09-16
- time-obs: 16:11:14.983200000
- date-end: 2025-09-16
- time-end: 18:17:53.965200000
- obs_id: A14_057T04_9000006508
- exposure: 2990.13070852
- 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_53933cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53933cztM0_level2_quad_clean.evt
|
| Size (bytes) | 734,630,400 | 83,154,240 |
| Size | 700.6 MB
| 79.3 MB
|
| Events in quadrant A | 3,482,315 | 638,548 |
| Events in quadrant B | 4,537,388 | 661,943 |
| Events in quadrant C | 6,634,857 | 498,782 |
| Events in quadrant D | 12,035,417 | 265,261 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15061 | 2 |
| B | 0 | 18019 | 2 |
| C | 0 | 24225 | 2 |
| D | 0 | 40173 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6494 | 141 | 2.171235% |
| B | 6493 | 362 | 5.575235% |
| C | 6493 | 1291 | 19.882951% |
| D | 6494 | 3723 | 57.329843% |
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 | 7599 | 6495 | 119 | 119 | 1.57% | 1.83% |  |
| B | 7598 | 6494 | 246 | 246 | 3.24% | 3.79% |  |
| C | 7598 | 6494 | 1285 | 1285 | 16.91% | 19.79% |  |
| D | 7599 | 6495 | 3491 | 3491 | 45.94% | 53.75% |  |
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 | 472460 | 2736.46 | 700 | 682 | 172.4 |
| A | 4 | 249 | 74587 | 428.67 | 700 | 682 | 172.4 |
| A | 12 | 17 | 50816 | 290.79 | 700 | 682 | 172.4 |
| B | 0 | 213 | 775779 | 5296.91 | 687 | 664 | 146.3 |
| B | 1 | 223 | 452645 | 3088.71 | 687 | 664 | 146.3 |
| B | 0 | 155 | 171173 | 1165.21 | 687 | 664 | 146.3 |
| C | 1 | 241 | 3620438 | 21544.43 | 610 | 603 | 168.0 |
| C | 12 | 252 | 142854 | 846.65 | 610 | 603 | 168.0 |
| C | 13 | 3 | 117645 | 696.61 | 610 | 603 | 168.0 |
| D | 8 | 176 | 7368434 | 57454.7 | 440 | 419 | 128.2 |
| D | 6 | 239 | 1226531 | 9561.04 | 440 | 419 | 128.2 |
| D | 10 | 172 | 368670 | 2871.57 | 440 | 419 | 128.2 |
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 |  |