Observation information
- date-obs: 2026-04-30
- time-obs: 12:21:23.538600000
- date-end: 2026-04-30
- time-end: 14:18:11.517300000
- obs_id: A14_049T03_9000006570
- exposure: 5700.72603023
- 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_57289cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57289cztM0_level2_quad_clean.evt
|
| Size (bytes) | 371,128,320 | 87,572,160 |
| Size | 353.9 MB
| 83.5 MB
|
| Events in quadrant A | 2,901,022 | 574,071 |
| Events in quadrant B | 3,133,132 | 612,713 |
| Events in quadrant C | 4,368,049 | 530,453 |
| Events in quadrant D | 2,870,659 | 517,311 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12622 | 1 |
| B | 0 | 13571 | 1 |
| C | 0 | 17161 | 1 |
| D | 0 | 12936 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5973 | 49 | 0.820358% |
| B | 5974 | 92 | 1.540007% |
| C | 5974 | 285 | 4.770673% |
| D | 5974 | 53 | 0.887178% |
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 | 7008 | 5974 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7009 | 5975 | 25 | 25 | 0.36% | 0.42% |  |
| C | 7009 | 5975 | 244 | 244 | 3.48% | 4.08% |  |
| D | 7009 | 5975 | 31 | 31 | 0.44% | 0.52% |  |
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 | 333972 | 2105.17 | 642 | 625 | 158.3 |
| A | 3 | 14 | 26015 | 160.34 | 642 | 625 | 158.3 |
| A | 7 | 64 | 17312 | 105.38 | 642 | 625 | 158.3 |
| B | 5 | 185 | 261930 | 1929.73 | 630 | 606 | 135.4 |
| B | 7 | 0 | 144920 | 1065.68 | 630 | 606 | 135.4 |
| B | 10 | 16 | 64467 | 471.58 | 630 | 606 | 135.4 |
| C | 15 | 224 | 1334621 | 8073.36 | 603 | 596 | 165.2 |
| C | 14 | 254 | 155264 | 936.03 | 603 | 596 | 165.2 |
| C | 6 | 223 | 118983 | 716.46 | 603 | 596 | 165.2 |
| D | 3 | 12 | 136584 | 775.96 | 617 | 589 | 175.3 |
| D | 2 | 249 | 47793 | 269.34 | 617 | 589 | 175.3 |
| D | 5 | 173 | 44597 | 251.1 | 617 | 589 | 175.3 |
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 |  |