Observation information
- date-obs: 2026-04-17
- time-obs: 10:24:24.735600000
- date-end: 2026-04-17
- time-end: 12:27:12.717200000
- obs_id: A14_083T10_9000006566
- exposure: 7138.2365123
- 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_57094cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57094cztM0_level2_quad_clean.evt
|
| Size (bytes) | 471,588,480 | 107,524,800 |
| Size | 449.7 MB
| 102.5 MB
|
| Events in quadrant A | 4,832,336 | 689,149 |
| Events in quadrant B | 3,657,981 | 754,500 |
| Events in quadrant C | 3,609,627 | 672,636 |
| Events in quadrant D | 4,784,333 | 626,805 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19384 | 0 |
| B | 0 | 16113 | 1 |
| C | 0 | 16094 | 0 |
| D | 0 | 19211 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7368 | 188 | 2.551574% |
| B | 7368 | 57 | 0.773616% |
| C | 7368 | 51 | 0.692182% |
| D | 7368 | 116 | 1.574376% |
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 | 7368 | 7368 | 137 | 137 | 1.86% | 1.86% |  |
| B | 7368 | 7368 | 10 | 10 | 0.14% | 0.14% |  |
| C | 7368 | 7368 | 37 | 37 | 0.50% | 0.50% |  |
| D | 7368 | 7368 | 91 | 91 | 1.24% | 1.24% |  |
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 | 1477403 | 7422.28 | 798 | 775 | 198.9 |
| A | 5 | 113 | 88112 | 439.0 | 798 | 775 | 198.9 |
| A | 4 | 249 | 85123 | 423.98 | 798 | 775 | 198.9 |
| B | 4 | 171 | 334683 | 1961.7 | 791 | 762 | 170.2 |
| B | 7 | 252 | 56738 | 328.85 | 791 | 762 | 170.2 |
| B | 5 | 185 | 27506 | 157.11 | 791 | 762 | 170.2 |
| C | 13 | 3 | 218013 | 1017.95 | 781 | 775 | 213.4 |
| C | 14 | 245 | 112153 | 521.91 | 781 | 775 | 213.4 |
| C | 14 | 254 | 72038 | 333.93 | 781 | 775 | 213.4 |
| D | 15 | 142 | 918716 | 4225.2 | 775 | 740 | 217.3 |
| D | 12 | 33 | 500277 | 2299.24 | 775 | 740 | 217.3 |
| D | 2 | 249 | 69488 | 316.43 | 775 | 740 | 217.3 |
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 |  |