Observation information
- date-obs: 2026-04-28
- time-obs: 16:53:38.012500000
- date-end: 2026-04-28
- time-end: 20:44:00.374900000
- obs_id: A14_049T03_9000006570
- exposure: 9550.80523884
- sourceid: NGC 1796
- observer: amrutha
- ra_pnt: 75.67679
- dec_pnt: -61.13996
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_049T03_9000006570_57263cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57263cztM0_level2_quad_clean.evt
|
| Size (bytes) | 794,010,240 | 135,175,680 |
| Size | 757.2 MB
| 128.9 MB
|
| Events in quadrant A | 4,804,555 | 912,696 |
| Events in quadrant B | 5,481,979 | 926,637 |
| Events in quadrant C | 12,339,132 | 707,494 |
| Events in quadrant D | 5,904,840 | 776,578 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22856 | 35 |
| B | 0 | 24266 | 23 |
| C | 0 | 44591 | 110 |
| D | 0 | 25704 | 28 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 228 | 0 |
| B | 0 | 228 | 0 |
| C | 0 | 228 | 0 |
| D | 0 | 228 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11103 | 34 | 0.306224% |
| B | 11112 | 200 | 1.799856% |
| C | 11099 | 2239 | 20.172989% |
| D | 11109 | 197 | 1.773337% |
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 | 13822 | 11404 | 6 | 6 | 0.04% | 0.05% |  |
| B | 13823 | 11404 | 112 | 112 | 0.81% | 0.98% |  |
| C | 13823 | 11366 | 2086 | 2086 | 15.09% | 18.35% |  |
| D | 13823 | 11405 | 201 | 201 | 1.45% | 1.76% |  |
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 | 101042 | 338.05 | 1200 | 1173 | 295.4 |
| A | 3 | 14 | 32042 | 104.49 | 1200 | 1173 | 295.4 |
| A | 4 | 249 | 16900 | 53.23 | 1200 | 1173 | 295.4 |
| B | 5 | 185 | 425971 | 1689.89 | 1185 | 1144 | 251.4 |
| B | 7 | 252 | 111847 | 440.36 | 1185 | 1144 | 251.4 |
| B | 10 | 16 | 57744 | 225.14 | 1185 | 1144 | 251.4 |
| C | 15 | 224 | 7720534 | 27306.64 | 1040 | 1033 | 282.7 |
| C | 14 | 254 | 235913 | 830.85 | 1040 | 1033 | 282.7 |
| C | 12 | 254 | 87125 | 304.54 | 1040 | 1033 | 282.7 |
| D | 2 | 249 | 485053 | 1486.1 | 1139 | 1089 | 325.7 |
| D | 7 | 96 | 255795 | 782.12 | 1139 | 1089 | 325.7 |
| D | 2 | 120 | 200518 | 612.38 | 1139 | 1089 | 325.7 |
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 |  |