Observation information
- date-obs: 2026-03-25
- time-obs: 16:10:29.762000000
- date-end: 2026-03-25
- time-end: 18:09:36.743000000
- obs_id: A14_083T05_9000006560
- exposure: 5552.68563044
- sourceid: NGC1556
- observer: Rakshit
- ra_pnt: 64.43679
- dec_pnt: -50.16444
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T05_9000006560_56756cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006560_56756cztM0_level2_quad_clean.evt
|
| Size (bytes) | 493,773,120 | 87,546,240 |
| Size | 470.9 MB
| 83.5 MB
|
| Events in quadrant A | 3,098,670 | 596,031 |
| Events in quadrant B | 5,918,031 | 576,745 |
| Events in quadrant C | 3,951,382 | 558,270 |
| Events in quadrant D | 4,823,063 | 482,365 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13546 | 0 |
| B | 0 | 22025 | 0 |
| C | 0 | 16046 | 0 |
| D | 0 | 18934 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6262 | 49 | 0.782498% |
| B | 6262 | 885 | 14.132865% |
| C | 6262 | 142 | 2.267646% |
| D | 6262 | 658 | 10.507825% |
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 | 7147 | 6263 | 13 | 13 | 0.18% | 0.21% |  |
| B | 7147 | 6263 | 448 | 448 | 6.27% | 7.15% |  |
| C | 7147 | 6263 | 122 | 122 | 1.71% | 1.95% |  |
| D | 7147 | 6263 | 669 | 669 | 9.36% | 10.68% |  |
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 | 14 | 302987 | 1828.43 | 662 | 643 | 165.4 |
| A | 15 | 33 | 74871 | 448.89 | 662 | 643 | 165.4 |
| A | 3 | 62 | 69176 | 414.45 | 662 | 643 | 165.4 |
| B | 4 | 206 | 2423793 | 17890.99 | 627 | 603 | 135.4 |
| B | 5 | 185 | 570398 | 4206.93 | 627 | 603 | 135.4 |
| B | 8 | 128 | 240746 | 1773.03 | 627 | 603 | 135.4 |
| C | 12 | 252 | 576421 | 3324.48 | 633 | 626 | 173.2 |
| C | 9 | 38 | 256155 | 1475.35 | 633 | 626 | 173.2 |
| C | 6 | 223 | 156728 | 901.29 | 633 | 626 | 173.2 |
| D | 2 | 249 | 2133169 | 12227.08 | 612 | 585 | 174.4 |
| D | 8 | 160 | 82700 | 470.8 | 612 | 585 | 174.4 |
| D | 5 | 173 | 51492 | 291.87 | 612 | 585 | 174.4 |
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 |  |