Observation information
- date-obs: 2026-03-23
- time-obs: 06:55:13.282500000
- date-end: 2026-03-23
- time-end: 08:58:46.264700000
- obs_id: A14_083T05_9000006560
- exposure: 6097.24299222
- sourceid: NGC1556
- observer: Rakshit
- ra_pnt: 64.43679
- dec_pnt: -50.16444
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T05_9000006560_56720cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006560_56720cztM0_level2_quad_clean.evt
|
| Size (bytes) | 433,054,080 | 96,704,640 |
| Size | 413.0 MB
| 92.2 MB
|
| Events in quadrant A | 3,770,734 | 633,877 |
| Events in quadrant B | 3,151,624 | 683,494 |
| Events in quadrant C | 5,270,729 | 572,647 |
| Events in quadrant D | 3,322,302 | 576,785 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15300 | 1 |
| B | 0 | 14092 | 1 |
| C | 0 | 20250 | 1 |
| D | 0 | 14510 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6618 | 153 | 2.311877% |
| B | 6618 | 117 | 1.767906% |
| C | 6619 | 562 | 8.490709% |
| D | 6619 | 90 | 1.359722% |
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 | 7413 | 6618 | 78 | 78 | 1.05% | 1.18% |  |
| B | 7413 | 6618 | 28 | 28 | 0.38% | 0.42% |  |
| C | 7414 | 6619 | 435 | 435 | 5.87% | 6.57% |  |
| D | 7414 | 6619 | 46 | 46 | 0.62% | 0.69% |  |
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 | 3 | 14 | 489027 | 2719.41 | 720 | 702 | 179.6 |
| A | 3 | 62 | 326213 | 1812.72 | 720 | 702 | 179.6 |
| A | 10 | 251 | 85939 | 474.67 | 720 | 702 | 179.6 |
| B | 10 | 247 | 113287 | 734.03 | 711 | 684 | 153.4 |
| B | 2 | 249 | 65944 | 425.41 | 711 | 684 | 153.4 |
| B | 10 | 16 | 44933 | 288.45 | 711 | 684 | 153.4 |
| C | 13 | 3 | 1260643 | 6635.45 | 684 | 677 | 189.9 |
| C | 15 | 230 | 1012664 | 5329.5 | 684 | 677 | 189.9 |
| C | 12 | 252 | 81260 | 424.38 | 684 | 677 | 189.9 |
| D | 2 | 249 | 198231 | 986.84 | 705 | 675 | 200.2 |
| D | 2 | 252 | 133287 | 662.43 | 705 | 675 | 200.2 |
| D | 2 | 207 | 100819 | 500.24 | 705 | 675 | 200.2 |
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 |  |