Observation information
- date-obs: 2026-05-02
- time-obs: 09:16:52.691100000
- date-end: 2026-05-02
- time-end: 11:23:10.046000000
- obs_id: A14_049T03_9000006570
- exposure: 6401.1456297
- 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_57316cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57316cztM0_level2_quad_clean.evt
|
| Size (bytes) | 451,330,560 | 97,384,320 |
| Size | 430.4 MB
| 92.9 MB
|
| Events in quadrant A | 3,177,055 | 639,055 |
| Events in quadrant B | 3,400,075 | 681,880 |
| Events in quadrant C | 5,098,987 | 593,876 |
| Events in quadrant D | 4,507,178 | 564,172 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14260 | 1 |
| B | 0 | 14762 | 1 |
| C | 0 | 19941 | 1 |
| D | 0 | 18018 | 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 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6733 | 103 | 1.529779% |
| B | 6734 | 144 | 2.138402% |
| C | 6734 | 370 | 5.494505% |
| D | 6734 | 340 | 5.049005% |
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 | 7578 | 6733 | 38 | 38 | 0.50% | 0.56% |  |
| B | 7579 | 6734 | 45 | 45 | 0.59% | 0.67% |  |
| C | 7579 | 6734 | 314 | 314 | 4.14% | 4.66% |  |
| D | 7579 | 6734 | 287 | 287 | 3.79% | 4.26% |  |
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 | 0 | 12 | 193884 | 1059.62 | 739 | 720 | 182.3 |
| A | 3 | 14 | 99892 | 544.02 | 739 | 720 | 182.3 |
| A | 13 | 254 | 10053 | 51.2 | 739 | 720 | 182.3 |
| B | 5 | 185 | 211783 | 1353.63 | 721 | 694 | 155.9 |
| B | 10 | 16 | 123058 | 784.67 | 721 | 694 | 155.9 |
| B | 7 | 252 | 78933 | 501.72 | 721 | 694 | 155.9 |
| C | 15 | 224 | 1933919 | 10160.38 | 697 | 689 | 190.3 |
| C | 12 | 250 | 157974 | 826.63 | 697 | 689 | 190.3 |
| C | 6 | 223 | 94373 | 492.37 | 697 | 689 | 190.3 |
| D | 3 | 224 | 715027 | 3557.49 | 710 | 679 | 200.8 |
| D | 2 | 249 | 657017 | 3268.6 | 710 | 679 | 200.8 |
| D | 3 | 12 | 133528 | 661.59 | 710 | 679 | 200.8 |
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 |  |