Observation information
- date-obs: 2026-03-03
- time-obs: 20:11:03.282600000
- date-end: 2026-03-03
- time-end: 22:29:21.256900000
- obs_id: A14_083T05_9000006554
- exposure: 5511.46842402
- 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_56432cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56432cztM0_level2_quad_clean.evt
|
| Size (bytes) | 553,075,200 | 90,766,080 |
| Size | 527.5 MB
| 86.6 MB
|
| Events in quadrant A | 5,369,491 | 600,223 |
| Events in quadrant B | 6,003,255 | 579,046 |
| Events in quadrant C | 4,407,517 | 573,634 |
| Events in quadrant D | 4,184,942 | 539,734 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20648 | 1 |
| B | 0 | 22358 | 1 |
| C | 0 | 17726 | 1 |
| D | 0 | 17172 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6543 | 452 | 6.908146% |
| B | 6543 | 1147 | 17.530185% |
| C | 6542 | 388 | 5.930908% |
| D | 6542 | 307 | 4.692755% |
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 | 7598 | 6543 | 413 | 413 | 5.44% | 6.31% |  |
| B | 7598 | 6544 | 840 | 840 | 11.06% | 12.84% |  |
| C | 7597 | 6543 | 357 | 357 | 4.70% | 5.46% |  |
| D | 7597 | 6543 | 267 | 267 | 3.51% | 4.08% |  |
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 | 4 | 95 | 912974 | 5369.66 | 689 | 675 | 169.9 |
| A | 3 | 62 | 687246 | 4041.06 | 689 | 675 | 169.9 |
| A | 12 | 3 | 403659 | 2371.9 | 689 | 675 | 169.9 |
| B | 4 | 206 | 2026314 | 14590.81 | 647 | 623 | 138.8 |
| B | 5 | 185 | 1007079 | 7249.38 | 647 | 623 | 138.8 |
| B | 4 | 171 | 69662 | 497.28 | 647 | 623 | 138.8 |
| C | 12 | 254 | 1302672 | 7094.32 | 664 | 658 | 183.5 |
| C | 13 | 3 | 224771 | 1221.13 | 664 | 658 | 183.5 |
| C | 1 | 16 | 125376 | 679.55 | 664 | 658 | 183.5 |
| D | 8 | 240 | 554156 | 2982.64 | 651 | 621 | 185.6 |
| D | 7 | 96 | 182917 | 982.28 | 651 | 621 | 185.6 |
| D | 2 | 249 | 143921 | 772.15 | 651 | 621 | 185.6 |
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 |  |