Observation information
- date-obs: 2026-04-20
- time-obs: 19:48:11.974300000
- date-end: 2026-04-20
- time-end: 21:52:30.949600000
- obs_id: A14_083T10_9000006566
- exposure: 4756.76986051
- sourceid: NGC1249
- observer: Rakshit
- ra_pnt: 47.50507
- dec_pnt: -53.33584
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T10_9000006566_57145cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57145cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,140,160 | 89,023,680 |
| Size | 503.7 MB
| 84.9 MB
|
| Events in quadrant A | 2,778,486 | 640,104 |
| Events in quadrant B | 5,095,149 | 599,273 |
| Events in quadrant C | 6,175,912 | 462,894 |
| Events in quadrant D | 5,011,158 | 554,805 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12873 | 2 |
| B | 0 | 19530 | 2 |
| C | 0 | 22716 | 2 |
| D | 0 | 19319 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6289 | 14 | 0.222611% |
| B | 6290 | 856 | 13.608903% |
| C | 6290 | 1575 | 25.039746% |
| D | 6289 | 204 | 3.243759% |
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 | 7459 | 6290 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7460 | 6291 | 627 | 627 | 8.40% | 9.97% |  |
| C | 7460 | 6291 | 1262 | 1262 | 16.92% | 20.06% |  |
| D | 7459 | 6290 | 199 | 199 | 2.67% | 3.16% |  |
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 | 47149 | 268.1 | 694 | 677 | 173.3 |
| A | 5 | 113 | 21391 | 119.5 | 694 | 677 | 173.3 |
| A | 10 | 251 | 12074 | 65.75 | 694 | 677 | 173.3 |
| B | 10 | 16 | 2244215 | 16320.55 | 637 | 613 | 137.5 |
| B | 10 | 32 | 77473 | 559.1 | 637 | 613 | 137.5 |
| B | 5 | 185 | 63192 | 455.22 | 637 | 613 | 137.5 |
| C | 15 | 198 | 3205473 | 20214.64 | 575 | 569 | 158.5 |
| C | 9 | 38 | 554057 | 3491.08 | 575 | 569 | 158.5 |
| C | 14 | 67 | 49243 | 307.01 | 575 | 569 | 158.5 |
| D | 15 | 142 | 1047137 | 5614.33 | 653 | 621 | 186.4 |
| D | 12 | 33 | 869950 | 4663.76 | 653 | 621 | 186.4 |
| D | 7 | 96 | 147353 | 787.18 | 653 | 621 | 186.4 |
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 |  |