Observation information
- date-obs: 2026-03-02
- time-obs: 23:17:43.452400000
- date-end: 2026-03-03
- time-end: 01:43:59.431100000
- obs_id: A14_083T05_9000006554
- exposure: 4397.61383873
- 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_56419cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56419cztM0_level2_quad_clean.evt
|
| Size (bytes) | 767,753,280 | 80,694,720 |
| Size | 732.2 MB
| 77.0 MB
|
| Events in quadrant A | 11,103,424 | 391,916 |
| Events in quadrant B | 6,089,570 | 546,248 |
| Events in quadrant C | 3,184,509 | 561,456 |
| Events in quadrant D | 7,529,065 | 480,330 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 37566 | 2 |
| B | 0 | 22539 | 2 |
| C | 0 | 14336 | 2 |
| D | 0 | 27068 | 5 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6637 | 2695 | 40.605695% |
| B | 6637 | 1184 | 17.839385% |
| C | 6637 | 49 | 0.738285% |
| D | 6636 | 635 | 9.569017% |
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 | 8079 | 6913 | 2549 | 2549 | 31.55% | 36.87% |  |
| B | 8079 | 6920 | 768 | 768 | 9.51% | 11.10% |  |
| C | 8079 | 6920 | 24 | 24 | 0.30% | 0.35% |  |
| D | 8078 | 6919 | 690 | 690 | 8.54% | 9.97% |  |
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 | 4635581 | 30649.98 | 607 | 592 | 151.2 |
| A | 12 | 3 | 2205026 | 14577.35 | 607 | 592 | 151.2 |
| A | 7 | 64 | 546296 | 3608.6 | 607 | 592 | 151.2 |
| B | 4 | 206 | 3009164 | 21115.04 | 668 | 642 | 142.5 |
| B | 5 | 185 | 84588 | 589.17 | 668 | 642 | 142.5 |
| B | 15 | 33 | 66351 | 461.17 | 668 | 642 | 142.5 |
| C | 12 | 254 | 150943 | 776.37 | 712 | 704 | 193.5 |
| C | 12 | 249 | 82842 | 424.45 | 712 | 704 | 193.5 |
| C | 6 | 223 | 68989 | 352.87 | 712 | 704 | 193.5 |
| D | 8 | 129 | 3357001 | 17662.36 | 676 | 646 | 190.0 |
| D | 5 | 113 | 367629 | 1931.2 | 676 | 646 | 190.0 |
| D | 8 | 240 | 319331 | 1677.04 | 676 | 646 | 190.0 |
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 |  |