Observation information
- date-obs: 2026-04-15
- time-obs: 02:51:45.252900000
- date-end: 2026-04-15
- time-end: 04:54:59.233600000
- obs_id: A14_083T10_9000006566
- exposure: 5998.9744429
- sourceid: NGC1249
- observer: Rakshit
- ra_pnt: 47.50507
- dec_pnt: -53.33584
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T10_9000006566_57060cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57060cztM0_level2_quad_clean.evt
|
| Size (bytes) | 365,918,400 | 95,339,520 |
| Size | 349.0 MB
| 90.9 MB
|
| Events in quadrant A | 2,850,610 | 627,332 |
| Events in quadrant B | 3,203,277 | 670,219 |
| Events in quadrant C | 3,040,974 | 600,660 |
| Events in quadrant D | 3,966,590 | 555,485 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12941 | 1 |
| B | 0 | 13783 | 1 |
| C | 0 | 13372 | 1 |
| D | 0 | 15925 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6209 | 20 | 0.322113% |
| B | 6210 | 155 | 2.495974% |
| C | 6210 | 52 | 0.837359% |
| D | 6210 | 134 | 2.157810% |
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 | 7394 | 6210 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7395 | 6210 | 60 | 60 | 0.81% | 0.97% |  |
| C | 7395 | 6211 | 31 | 31 | 0.42% | 0.50% |  |
| D | 7395 | 6211 | 100 | 100 | 1.35% | 1.61% |  |
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 | 4 | 207 | 82380 | 482.07 | 688 | 671 | 169.5 |
| A | 4 | 3 | 30023 | 173.17 | 688 | 671 | 169.5 |
| A | 3 | 14 | 28152 | 162.13 | 688 | 671 | 169.5 |
| B | 10 | 16 | 252908 | 1769.29 | 674 | 650 | 142.6 |
| B | 0 | 63 | 192453 | 1345.27 | 674 | 650 | 142.6 |
| B | 10 | 32 | 35100 | 241.63 | 674 | 650 | 142.6 |
| C | 14 | 254 | 106267 | 578.13 | 674 | 665 | 182.7 |
| C | 15 | 209 | 73439 | 398.41 | 674 | 665 | 182.7 |
| C | 6 | 223 | 68733 | 372.64 | 674 | 665 | 182.7 |
| D | 15 | 142 | 368810 | 1949.84 | 667 | 637 | 188.8 |
| D | 7 | 96 | 271990 | 1437.09 | 667 | 637 | 188.8 |
| D | 12 | 33 | 133664 | 704.51 | 667 | 637 | 188.8 |
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 |  |