Observation information
- date-obs: 2026-04-28
- time-obs: 20:02:30.968100000
- date-end: 2026-04-28
- time-end: 22:26:26.933000000
- obs_id: A14_049T03_9000006570
- exposure: 5937.94855952
- 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_57264cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57264cztM0_level2_quad_clean.evt
|
| Size (bytes) | 521,818,560 | 82,224,000 |
| Size | 497.6 MB
| 78.4 MB
|
| Events in quadrant A | 2,810,562 | 563,098 |
| Events in quadrant B | 5,002,147 | 569,189 |
| Events in quadrant C | 6,818,865 | 437,992 |
| Events in quadrant D | 4,180,173 | 466,632 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13269 | 2 |
| B | 0 | 19460 | 2 |
| C | 0 | 24844 | 3 |
| D | 0 | 17218 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| 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 | 6493 | 20 | 0.308024% |
| B | 6493 | 468 | 7.207762% |
| C | 6492 | 1013 | 15.603820% |
| D | 6492 | 396 | 6.099815% |
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 | 7913 | 6774 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7913 | 6774 | 319 | 319 | 4.03% | 4.71% |  |
| C | 7912 | 6734 | 952 | 952 | 12.03% | 14.14% |  |
| D | 7912 | 6773 | 381 | 381 | 4.82% | 5.63% |  |
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 | 8 | 4 | 64619 | 366.97 | 696 | 677 | 174.2 |
| A | 3 | 14 | 39568 | 223.2 | 696 | 677 | 174.2 |
| A | 13 | 254 | 8666 | 45.85 | 696 | 677 | 174.2 |
| B | 5 | 185 | 2005395 | 14001.52 | 672 | 649 | 143.2 |
| B | 7 | 252 | 96242 | 667.64 | 672 | 649 | 143.2 |
| B | 10 | 247 | 57234 | 395.2 | 672 | 649 | 143.2 |
| C | 15 | 224 | 3803023 | 22338.97 | 622 | 616 | 170.2 |
| C | 6 | 13 | 188511 | 1103.87 | 622 | 616 | 170.2 |
| C | 14 | 246 | 174235 | 1020.0 | 622 | 616 | 170.2 |
| D | 2 | 249 | 1119378 | 6056.22 | 646 | 615 | 184.7 |
| D | 8 | 240 | 305714 | 1651.6 | 646 | 615 | 184.7 |
| D | 5 | 32 | 64720 | 347.02 | 646 | 615 | 184.7 |
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 |  |