Observation information
- date-obs: 2026-04-17
- time-obs: 08:38:31.751500000
- date-end: 2026-04-17
- time-end: 10:43:02.732200000
- obs_id: A14_083T10_9000006566
- exposure: 6482.14883929
- 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_57093cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57093cztM0_level2_quad_clean.evt
|
| Size (bytes) | 617,227,200 | 104,391,360 |
| Size | 588.6 MB
| 99.6 MB
|
| Events in quadrant A | 6,786,594 | 616,084 |
| Events in quadrant B | 3,440,659 | 763,030 |
| Events in quadrant C | 3,842,031 | 676,578 |
| Events in quadrant D | 8,199,168 | 584,947 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25381 | 0 |
| B | 0 | 15568 | 0 |
| C | 0 | 16793 | 0 |
| D | 0 | 29477 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7471 | 1054 | 14.107884% |
| B | 7471 | 37 | 0.495248% |
| C | 7472 | 101 | 1.351713% |
| D | 7471 | 787 | 10.534065% |
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 | 7471 | 7471 | 854 | 854 | 11.43% | 11.43% |  |
| B | 7471 | 7471 | 6 | 6 | 0.08% | 0.08% |  |
| C | 7472 | 7472 | 86 | 86 | 1.15% | 1.15% |  |
| D | 7471 | 7471 | 847 | 847 | 11.34% | 11.34% |  |
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 | 13 | 3597833 | 19000.1 | 767 | 747 | 189.3 |
| A | 5 | 113 | 83558 | 437.41 | 767 | 747 | 189.3 |
| A | 13 | 248 | 56670 | 295.39 | 767 | 747 | 189.3 |
| B | 4 | 171 | 94078 | 538.91 | 799 | 770 | 173.1 |
| B | 7 | 252 | 28251 | 158.72 | 799 | 770 | 173.1 |
| B | 10 | 247 | 24433 | 136.67 | 799 | 770 | 173.1 |
| C | 14 | 245 | 164881 | 762.94 | 788 | 780 | 215.1 |
| C | 12 | 252 | 163060 | 754.47 | 788 | 780 | 215.1 |
| C | 14 | 254 | 162953 | 753.98 | 788 | 780 | 215.1 |
| D | 15 | 142 | 2677487 | 12572.37 | 757 | 722 | 212.9 |
| D | 12 | 33 | 2201527 | 10336.86 | 757 | 722 | 212.9 |
| D | 7 | 96 | 83003 | 386.46 | 757 | 722 | 212.9 |
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 |  |