Observation information
- date-obs: 2025-09-15
- time-obs: 17:42:06.166800000
- date-end: 2025-09-15
- time-end: 19:42:59.143100000
- obs_id: A14_057T04_9000006508
- exposure: 2186.75239497
- 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_53919cztM0_level2.fits
| modeM0/AS1A14_057T04_9000006508_53919cztM0_level2_quad_clean.evt
|
| Size (bytes) | 598,371,840 | 79,390,080 |
| Size | 570.7 MB
| 75.7 MB
|
| Events in quadrant A | 2,925,528 | 606,771 |
| Events in quadrant B | 3,309,547 | 635,341 |
| Events in quadrant C | 3,839,944 | 542,311 |
| Events in quadrant D | 11,600,997 | 194,620 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12914 | 1 |
| B | 0 | 14059 | 1 |
| C | 0 | 15853 | 1 |
| D | 0 | 38662 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 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 | 6083 | 40 | 0.657570% |
| B | 6084 | 149 | 2.449047% |
| C | 6084 | 385 | 6.328074% |
| D | 6083 | 4095 | 67.318757% |
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 | 7253 | 6084 | 31 | 31 | 0.43% | 0.51% |  |
| B | 7254 | 6085 | 103 | 103 | 1.42% | 1.69% |  |
| C | 7254 | 6085 | 353 | 353 | 4.87% | 5.80% |  |
| D | 7252 | 6082 | 3332 | 3332 | 45.95% | 54.78% |  |
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 | 140308 | 855.42 | 657 | 644 | 163.3 |
| A | 15 | 190 | 47131 | 284.72 | 657 | 644 | 163.3 |
| A | 8 | 246 | 31891 | 191.38 | 657 | 644 | 163.3 |
| B | 0 | 213 | 243286 | 1752.3 | 647 | 625 | 138.5 |
| B | 5 | 236 | 204250 | 1470.41 | 647 | 625 | 138.5 |
| B | 5 | 185 | 115274 | 827.9 | 647 | 625 | 138.5 |
| C | 1 | 241 | 1020319 | 5926.71 | 624 | 619 | 172.1 |
| C | 13 | 3 | 128913 | 745.67 | 624 | 619 | 172.1 |
| C | 15 | 230 | 49344 | 283.2 | 624 | 619 | 172.1 |
| D | 8 | 176 | 9479190 | 97650.6 | 334 | 320 | 97.1 |
| D | 3 | 12 | 224871 | 2313.31 | 334 | 320 | 97.1 |
| D | 3 | 224 | 202370 | 2081.5 | 334 | 320 | 97.1 |
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 |  |