Observation information
- date-obs: 2026-04-16
- time-obs: 23:40:53.834800000
- date-end: 2026-04-17
- time-end: 01:59:13.813700000
- obs_id: A14_083T10_9000006566
- exposure: 5779.25938249
- 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_57088cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57088cztM0_level2_quad_clean.evt
|
| Size (bytes) | 495,812,160 | 95,106,240 |
| Size | 472.8 MB
| 90.7 MB
|
| Events in quadrant A | 2,934,079 | 645,387 |
| Events in quadrant B | 3,659,006 | 672,349 |
| Events in quadrant C | 5,278,906 | 572,314 |
| Events in quadrant D | 5,988,144 | 546,691 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13324 | 2 |
| B | 0 | 15177 | 2 |
| C | 0 | 19981 | 2 |
| D | 0 | 22144 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 139675966216232 | 139672336465966 |
| B | 0 | -1 | -1 |
| C | 0 | -1 | -1 |
| D | 0 | -1 | -1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6355 | 83 | 1.306058% |
| B | 6354 | 330 | 5.193579% |
| C | 6354 | 640 | 10.072395% |
| D | 6354 | 477 | 7.507082% |
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 | 7565 | 6357 | 32 | 32 | 0.42% | 0.50% |  |
| B | 7564 | 6355 | 159 | 159 | 2.10% | 2.50% |  |
| C | 7564 | 6356 | 492 | 492 | 6.50% | 7.74% |  |
| D | 7564 | 6356 | 492 | 492 | 6.50% | 7.74% |  |
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 | 13 | 248 | 118673 | 668.0 | 710 | 690 | 176.6 |
| A | 3 | 14 | 24122 | 132.67 | 710 | 690 | 176.6 |
| A | 8 | 9 | 15209 | 82.2 | 710 | 690 | 176.6 |
| B | 10 | 16 | 573301 | 3950.59 | 681 | 655 | 145.0 |
| B | 0 | 213 | 121400 | 833.0 | 681 | 655 | 145.0 |
| B | 10 | 32 | 82055 | 561.56 | 681 | 655 | 145.0 |
| C | 12 | 252 | 1206468 | 6554.95 | 674 | 667 | 184.0 |
| C | 15 | 198 | 855245 | 4645.64 | 674 | 667 | 184.0 |
| C | 14 | 245 | 168808 | 914.04 | 674 | 667 | 184.0 |
| D | 15 | 142 | 2356808 | 12551.74 | 667 | 635 | 187.7 |
| D | 2 | 249 | 344603 | 1832.38 | 667 | 635 | 187.7 |
| D | 12 | 33 | 234810 | 1247.49 | 667 | 635 | 187.7 |
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 |  |