Observation information
- date-obs: 2026-04-16
- time-obs: 16:58:03.897400000
- date-end: 2026-04-16
- time-end: 19:05:46.876800000
- obs_id: A14_083T10_9000006566
- exposure: 4763.35206312
- 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_57083cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57083cztM0_level2_quad_clean.evt
|
| Size (bytes) | 582,243,840 | 92,180,160 |
| Size | 555.3 MB
| 87.9 MB
|
| Events in quadrant A | 3,242,725 | 640,805 |
| Events in quadrant B | 3,865,288 | 658,498 |
| Events in quadrant C | 3,344,464 | 615,813 |
| Events in quadrant D | 10,568,782 | 398,926 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14764 | 1 |
| B | 0 | 16536 | 1 |
| C | 0 | 15065 | 1 |
| D | 0 | 36135 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6843 | 92 | 1.344440% |
| B | 6843 | 384 | 5.611574% |
| C | 6844 | 42 | 0.613676% |
| D | 6844 | 2279 | 33.299240% |
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 | 7663 | 6844 | 40 | 40 | 0.52% | 0.58% |  |
| B | 7663 | 6844 | 209 | 209 | 2.73% | 3.05% |  |
| C | 7664 | 6845 | 18 | 18 | 0.23% | 0.26% |  |
| D | 7664 | 6845 | 2282 | 2282 | 29.78% | 33.34% |  |
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 | 10 | 251 | 147991 | 815.31 | 728 | 709 | 180.6 |
| A | 3 | 14 | 131336 | 723.11 | 728 | 709 | 180.6 |
| A | 4 | 249 | 57297 | 313.25 | 728 | 709 | 180.6 |
| B | 10 | 16 | 925722 | 6132.33 | 699 | 674 | 150.8 |
| B | 10 | 32 | 76855 | 505.02 | 699 | 674 | 150.8 |
| B | 0 | 213 | 28258 | 182.86 | 699 | 674 | 150.8 |
| C | 14 | 245 | 217297 | 1125.43 | 703 | 696 | 192.5 |
| C | 1 | 16 | 166990 | 864.04 | 703 | 696 | 192.5 |
| C | 6 | 223 | 104608 | 539.91 | 703 | 696 | 192.5 |
| D | 15 | 142 | 4386317 | 26375.14 | 584 | 557 | 166.3 |
| D | 12 | 33 | 3271668 | 19671.85 | 584 | 557 | 166.3 |
| D | 2 | 249 | 404367 | 2428.44 | 584 | 557 | 166.3 |
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 |  |