Observation information
- date-obs: 2025-09-11
- time-obs: 19:43:18.925600000
- date-end: 2025-09-11
- time-end: 22:02:12.895200000
- obs_id: A14_057T04_9000006508
- exposure: 3775.51861751
- 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_53861cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53861cztM0_level2_quad_clean.evt
|
| Size (bytes) | 608,149,440 | 88,977,600 |
| Size | 580.0 MB
| 84.9 MB
|
| Events in quadrant A | 4,025,573 | 625,811 |
| Events in quadrant B | 3,504,313 | 680,970 |
| Events in quadrant C | 10,688,568 | 368,968 |
| Events in quadrant D | 3,795,377 | 570,568 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16233 | 2 |
| B | 0 | 14954 | 2 |
| C | 0 | 36110 | 2 |
| D | 0 | 16003 | 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 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6412 | 273 | 4.257642% |
| B | 6412 | 127 | 1.980661% |
| C | 6412 | 2843 | 44.338740% |
| D | 6412 | 142 | 2.214598% |
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 | 7572 | 6413 | 256 | 256 | 3.38% | 3.99% |  |
| B | 7572 | 6413 | 64 | 64 | 0.85% | 1.00% |  |
| C | 7572 | 6413 | 2849 | 2849 | 37.63% | 44.43% |  |
| D | 7572 | 6413 | 118 | 118 | 1.56% | 1.84% |  |
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 | 0 | 8 | 456393 | 2655.77 | 694 | 677 | 171.6 |
| A | 15 | 174 | 313886 | 1825.28 | 694 | 677 | 171.6 |
| A | 8 | 249 | 237062 | 1377.58 | 694 | 677 | 171.6 |
| B | 0 | 213 | 201423 | 1357.23 | 697 | 675 | 147.9 |
| B | 5 | 185 | 148103 | 996.74 | 697 | 675 | 147.9 |
| B | 0 | 171 | 108184 | 726.85 | 697 | 675 | 147.9 |
| C | 1 | 241 | 6244250 | 41865.91 | 538 | 535 | 149.1 |
| C | 15 | 224 | 1510475 | 10124.58 | 538 | 535 | 149.1 |
| C | 14 | 254 | 467374 | 3130.29 | 538 | 535 | 149.1 |
| D | 2 | 249 | 234518 | 1210.44 | 678 | 648 | 193.2 |
| D | 14 | 52 | 233084 | 1203.02 | 678 | 648 | 193.2 |
| D | 7 | 70 | 164404 | 847.55 | 678 | 648 | 193.2 |
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 |  |