Observation information
- date-obs: 2026-03-02
- time-obs: 20:11:51.480400000
- date-end: 2026-03-02
- time-end: 22:13:07.450300000
- obs_id: A14_083T05_9000006554
- exposure: 3087.97721046
- 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_9000006554_56417cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56417cztM0_level2_quad_clean.evt
|
| Size (bytes) | 804,712,320 | 72,691,200 |
| Size | 767.4 MB
| 69.3 MB
|
| Events in quadrant A | 12,053,936 | 300,663 |
| Events in quadrant B | 5,746,020 | 537,233 |
| Events in quadrant C | 3,453,087 | 554,113 |
| Events in quadrant D | 8,053,985 | 374,603 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 39911 | 1 |
| B | 0 | 21380 | 1 |
| C | 0 | 14821 | 1 |
| D | 0 | 28291 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6211 | 3317 | 53.405249% |
| B | 6211 | 1135 | 18.274030% |
| C | 6212 | 126 | 2.028332% |
| D | 6212 | 1767 | 28.444945% |
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 | 7276 | 6212 | 3054 | 3054 | 41.97% | 49.16% |  |
| B | 7276 | 6212 | 727 | 727 | 9.99% | 11.70% |  |
| C | 7277 | 6213 | 117 | 117 | 1.61% | 1.88% |  |
| D | 7277 | 6212 | 1638 | 1638 | 22.51% | 26.37% |  |
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 | 12 | 3 | 6055791 | 51913.04 | 462 | 450 | 116.6 |
| A | 4 | 95 | 1730887 | 14835.21 | 462 | 450 | 116.6 |
| A | 7 | 64 | 1481126 | 12693.98 | 462 | 450 | 116.6 |
| B | 4 | 206 | 2168213 | 17045.36 | 596 | 574 | 127.2 |
| B | 5 | 185 | 485651 | 3814.43 | 596 | 574 | 127.2 |
| B | 8 | 128 | 319526 | 2508.1 | 596 | 574 | 127.2 |
| C | 12 | 254 | 582374 | 3361.33 | 627 | 621 | 173.1 |
| C | 15 | 230 | 289588 | 1669.63 | 627 | 621 | 173.1 |
| C | 6 | 223 | 48954 | 279.27 | 627 | 621 | 173.1 |
| D | 8 | 129 | 3138669 | 21648.0 | 502 | 479 | 145.0 |
| D | 2 | 120 | 922239 | 6358.53 | 502 | 479 | 145.0 |
| D | 11 | 176 | 763919 | 5266.4 | 502 | 479 | 145.0 |
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 |  |