Observation information
- date-obs: 2026-04-27
- time-obs: 23:06:57.195800000
- date-end: 2026-04-28
- time-end: 01:33:07.158300000
- obs_id: A14_070T08_9000006568
- exposure: 6251.24462354
- sourceid: NGC2173
- observer: saroonsasi19
- ra_pnt: 89.49167
- dec_pnt: -72.97833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_070T08_9000006568_57251cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57251cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,852,800 | 99,803,520 |
| Size | 468.1 MB
| 95.2 MB
|
| Events in quadrant A | 3,737,353 | 672,968 |
| Events in quadrant B | 5,579,520 | 639,232 |
| Events in quadrant C | 5,032,920 | 609,915 |
| Events in quadrant D | 3,262,540 | 600,319 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16345 | 2 |
| B | 0 | 21860 | 2 |
| C | 0 | 20292 | 2 |
| D | 0 | 15212 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7171 | 52 | 0.725143% |
| B | 7171 | 985 | 13.735881% |
| C | 7171 | 412 | 5.745363% |
| D | 7171 | 33 | 0.460187% |
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 | 8771 | 7173 | 23 | 23 | 0.26% | 0.32% |  |
| B | 8771 | 7173 | 773 | 773 | 8.81% | 10.78% |  |
| C | 8771 | 7173 | 341 | 341 | 3.89% | 4.75% |  |
| D | 8771 | 7173 | 20 | 20 | 0.23% | 0.28% |  |
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 | 7 | 64 | 733351 | 3992.1 | 749 | 728 | 183.5 |
| A | 4 | 13 | 64280 | 346.3 | 749 | 728 | 183.5 |
| A | 10 | 251 | 15401 | 79.95 | 749 | 728 | 183.5 |
| B | 5 | 185 | 2158652 | 14420.51 | 707 | 682 | 149.6 |
| B | 4 | 201 | 275557 | 1836.84 | 707 | 682 | 149.6 |
| B | 10 | 16 | 118672 | 788.46 | 707 | 682 | 149.6 |
| C | 15 | 224 | 2019186 | 10505.9 | 709 | 702 | 192.1 |
| C | 14 | 254 | 136619 | 707.43 | 709 | 702 | 192.1 |
| C | 12 | 252 | 32434 | 165.16 | 709 | 702 | 192.1 |
| D | 2 | 120 | 107275 | 520.5 | 723 | 691 | 204.8 |
| D | 3 | 224 | 93399 | 452.73 | 723 | 691 | 204.8 |
| D | 5 | 173 | 56637 | 273.21 | 723 | 691 | 204.8 |
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 |  |