Observation information
- date-obs: 2026-04-15
- time-obs: 06:22:09.219200000
- date-end: 2026-04-15
- time-end: 08:26:53.199300000
- obs_id: A14_083T10_9000006566
- exposure: 5663.90789485
- 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_57062cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57062cztM0_level2_quad_clean.evt
|
| Size (bytes) | 517,034,880 | 97,986,240 |
| Size | 493.1 MB
| 93.4 MB
|
| Events in quadrant A | 3,142,714 | 655,474 |
| Events in quadrant B | 3,547,798 | 691,975 |
| Events in quadrant C | 3,439,108 | 638,188 |
| Events in quadrant D | 8,466,754 | 495,066 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14589 | 1 |
| B | 0 | 15702 | 1 |
| C | 0 | 15266 | 1 |
| D | 0 | 30034 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6979 | 177 | 2.536180% |
| B | 6979 | 329 | 4.714142% |
| C | 6980 | 170 | 2.435530% |
| D | 6980 | 1448 | 20.744986% |
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 | 7484 | 6979 | 5 | 5 | 0.07% | 0.07% |  |
| B | 7484 | 6979 | 105 | 105 | 1.40% | 1.50% |  |
| C | 7485 | 6981 | 32 | 32 | 0.43% | 0.46% |  |
| D | 7485 | 6981 | 1284 | 1284 | 17.15% | 18.39% |  |
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 | 3 | 14 | 75561 | 400.97 | 766 | 746 | 186.6 |
| A | 4 | 3 | 26883 | 140.08 | 766 | 746 | 186.6 |
| A | 8 | 6 | 25230 | 131.22 | 766 | 746 | 186.6 |
| B | 10 | 16 | 414107 | 2644.66 | 734 | 706 | 156.3 |
| B | 0 | 63 | 90267 | 572.95 | 734 | 706 | 156.3 |
| B | 10 | 32 | 36768 | 230.7 | 734 | 706 | 156.3 |
| C | 6 | 223 | 156993 | 761.4 | 750 | 742 | 205.2 |
| C | 1 | 16 | 107034 | 517.95 | 750 | 742 | 205.2 |
| C | 15 | 209 | 72780 | 351.03 | 750 | 742 | 205.2 |
| D | 15 | 142 | 4496261 | 23058.82 | 685 | 652 | 195.0 |
| D | 12 | 33 | 865337 | 4435.13 | 685 | 652 | 195.0 |
| D | 8 | 240 | 197074 | 1007.49 | 685 | 652 | 195.0 |
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 |  |