Observation information
- date-obs: 2025-09-11
- time-obs: 09:39:23.050100000
- date-end: 2025-09-11
- time-end: 11:41:57.990200000
- obs_id: A14_057T04_9000006508
- exposure: 5357.28077656
- 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_53854cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53854cztM0_level2_quad_clean.evt
|
| Size (bytes) | 693,912,960 | 99,169,920 |
| Size | 661.8 MB
| 94.6 MB
|
| Events in quadrant A | 4,429,583 | 693,603 |
| Events in quadrant B | 4,955,866 | 724,193 |
| Events in quadrant C | 9,829,962 | 483,730 |
| Events in quadrant D | 5,901,182 | 588,870 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18010 | 0 |
| B | 0 | 19718 | 0 |
| C | 0 | 34251 | 6 |
| D | 0 | 22549 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7355 | 232 | 3.154317% |
| B | 7355 | 380 | 5.166553% |
| C | 7355 | 2202 | 29.938817% |
| D | 7355 | 644 | 8.755948% |
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 | 7354 | 7354 | 201 | 201 | 2.73% | 2.73% |  |
| B | 7354 | 7354 | 235 | 235 | 3.20% | 3.20% |  |
| C | 7354 | 7354 | 2095 | 2095 | 28.49% | 28.49% |  |
| D | 7354 | 7354 | 631 | 631 | 8.58% | 8.58% |  |
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 | 471905 | 2351.73 | 809 | 787 | 200.3 |
| A | 0 | 8 | 411293 | 2049.17 | 809 | 787 | 200.3 |
| A | 15 | 174 | 206545 | 1027.1 | 809 | 787 | 200.3 |
| B | 0 | 213 | 576283 | 3334.6 | 788 | 761 | 172.6 |
| B | 5 | 185 | 424191 | 2453.37 | 788 | 761 | 172.6 |
| B | 10 | 245 | 232988 | 1345.53 | 788 | 761 | 172.6 |
| C | 1 | 241 | 3284440 | 17432.77 | 669 | 662 | 188.4 |
| C | 15 | 224 | 2619450 | 13902.5 | 669 | 662 | 188.4 |
| C | 15 | 158 | 649164 | 3442.74 | 669 | 662 | 188.4 |
| D | 10 | 172 | 1928355 | 8869.11 | 764 | 730 | 217.3 |
| D | 3 | 12 | 211963 | 971.9 | 764 | 730 | 217.3 |
| D | 3 | 224 | 132265 | 605.2 | 764 | 730 | 217.3 |
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 |  |