Observation information
- date-obs: 2026-04-17
- time-obs: 23:54:13.612500000
- date-end: 2026-04-18
- time-end: 02:15:55.590500000
- obs_id: A14_083T10_9000006566
- exposure: 6012.25456208
- 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_57103cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57103cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,515,520 | 97,879,680 |
| Size | 446.8 MB
| 93.3 MB
|
| Events in quadrant A | 3,120,095 | 651,961 |
| Events in quadrant B | 3,680,988 | 689,025 |
| Events in quadrant C | 3,305,931 | 621,996 |
| Events in quadrant D | 6,738,597 | 553,975 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13693 | 2 |
| B | 0 | 15268 | 2 |
| C | 0 | 14310 | 2 |
| D | 0 | 24574 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6406 | 89 | 1.389323% |
| B | 6406 | 282 | 4.402123% |
| C | 6406 | 97 | 1.514205% |
| D | 6406 | 482 | 7.524196% |
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 | 7591 | 6407 | 20 | 20 | 0.26% | 0.31% |  |
| B | 7591 | 6407 | 124 | 124 | 1.63% | 1.94% |  |
| C | 7591 | 6407 | 45 | 45 | 0.59% | 0.70% |  |
| D | 7591 | 6407 | 429 | 429 | 5.65% | 6.70% |  |
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 | 3 | 120185 | 675.0 | 720 | 702 | 177.0 |
| A | 10 | 251 | 73362 | 410.48 | 720 | 702 | 177.0 |
| A | 13 | 248 | 38057 | 211.03 | 720 | 702 | 177.0 |
| B | 10 | 16 | 596210 | 4052.58 | 699 | 673 | 147.0 |
| B | 8 | 128 | 147691 | 1000.45 | 699 | 673 | 147.0 |
| B | 0 | 63 | 51845 | 348.22 | 699 | 673 | 147.0 |
| C | 14 | 254 | 109701 | 573.86 | 703 | 694 | 190.0 |
| C | 13 | 3 | 85930 | 448.72 | 703 | 694 | 190.0 |
| C | 6 | 223 | 52327 | 271.82 | 703 | 694 | 190.0 |
| D | 15 | 142 | 1909076 | 9973.63 | 680 | 646 | 191.3 |
| D | 12 | 33 | 1338022 | 6989.25 | 680 | 646 | 191.3 |
| D | 2 | 31 | 284502 | 1483.46 | 680 | 646 | 191.3 |
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 |  |