Observation information
- date-obs: 2026-04-29
- time-obs: 17:02:30.741400000
- date-end: 2026-04-29
- time-end: 19:09:18.712300000
- obs_id: A14_049T03_9000006570
- exposure: 5789.95973992
- 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_57277cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57277cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,132,800 | 93,625,920 |
| Size | 467.4 MB
| 89.3 MB
|
| Events in quadrant A | 4,055,362 | 624,171 |
| Events in quadrant B | 4,553,846 | 644,895 |
| Events in quadrant C | 5,316,492 | 566,891 |
| Events in quadrant D | 3,729,917 | 560,979 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16403 | 43 |
| B | 0 | 17942 | 28 |
| C | 0 | 20314 | 67 |
| D | 0 | 15596 | 25 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6274 | 222 | 3.538412% |
| B | 6275 | 498 | 7.936255% |
| C | 6272 | 498 | 7.940051% |
| D | 6277 | 121 | 1.927672% |
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 | 7508 | 6284 | 170 | 170 | 2.26% | 2.71% |  |
| B | 7507 | 6283 | 300 | 300 | 4.00% | 4.77% |  |
| C | 7507 | 6281 | 394 | 394 | 5.25% | 6.27% |  |
| D | 7507 | 6282 | 96 | 96 | 1.28% | 1.53% |  |
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 | 95 | 854989 | 5005.47 | 687 | 670 | 170.7 |
| A | 8 | 4 | 310860 | 1817.41 | 687 | 670 | 170.7 |
| A | 3 | 14 | 139566 | 813.79 | 687 | 670 | 170.7 |
| B | 5 | 185 | 1567960 | 11104.32 | 664 | 641 | 141.1 |
| B | 7 | 252 | 116781 | 822.84 | 664 | 641 | 141.1 |
| B | 0 | 63 | 62607 | 439.02 | 664 | 641 | 141.1 |
| C | 15 | 224 | 2585623 | 14724.71 | 639 | 632 | 175.6 |
| C | 14 | 254 | 66670 | 376.17 | 639 | 632 | 175.6 |
| C | 12 | 252 | 46282 | 260.03 | 639 | 632 | 175.6 |
| D | 8 | 240 | 333576 | 1786.49 | 653 | 624 | 186.4 |
| D | 3 | 224 | 227398 | 1216.78 | 653 | 624 | 186.4 |
| D | 2 | 249 | 220252 | 1178.44 | 653 | 624 | 186.4 |
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 |  |