Observation information
- date-obs: 2026-02-17
- time-obs: 07:31:06.117000000
- date-end: 2026-02-17
- time-end: 09:54:46.097400000
- obs_id: A14_083T04_9000006550
- exposure: 5839.06742573
- sourceid: NGC1522
- observer: Rakshit
- ra_pnt: 61.533
- dec_pnt: -52.66842
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T04_9000006550_56216cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56216cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,361,920 | 97,067,520 |
| Size | 503.9 MB
| 92.6 MB
|
| Events in quadrant A | 5,927,498 | 618,749 |
| Events in quadrant B | 3,719,870 | 698,037 |
| Events in quadrant C | 5,556,144 | 589,114 |
| Events in quadrant D | 3,856,765 | 585,651 |
Level1 data integrity
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21982 | 2 |
| B | 0 | 15502 | 2 |
| C | 0 | 20948 | 2 |
| D | 0 | 15781 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6417 | 537 | 8.368396% |
| B | 6417 | 273 | 4.254324% |
| C | 6417 | 700 | 10.908524% |
| D | 6416 | 210 | 3.273067% |
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 | 7617 | 6417 | 374 | 374 | 4.91% | 5.83% |  |
| B | 7617 | 6417 | 131 | 131 | 1.72% | 2.04% |  |
| C | 7617 | 6417 | 596 | 596 | 7.82% | 9.29% |  |
| D | 7616 | 6416 | 157 | 157 | 2.06% | 2.45% |  |
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 | 937626 | 5387.76 | 706 | 687 | 173.9 |
| A | 15 | 32 | 587957 | 3377.03 | 706 | 687 | 173.9 |
| A | 3 | 79 | 497056 | 2854.31 | 706 | 687 | 173.9 |
| B | 5 | 185 | 663911 | 4435.86 | 709 | 684 | 149.5 |
| B | 0 | 171 | 74937 | 496.63 | 709 | 684 | 149.5 |
| B | 0 | 63 | 48103 | 317.15 | 709 | 684 | 149.5 |
| C | 12 | 254 | 2085758 | 11229.67 | 678 | 670 | 185.7 |
| C | 12 | 252 | 654383 | 3520.71 | 678 | 670 | 185.7 |
| C | 6 | 223 | 60895 | 324.35 | 678 | 670 | 185.7 |
| D | 6 | 239 | 306176 | 1552.64 | 697 | 663 | 196.8 |
| D | 2 | 249 | 204668 | 1036.77 | 697 | 663 | 196.8 |
| D | 13 | 153 | 140138 | 708.82 | 697 | 663 | 196.8 |
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 |  |