Observation information
- date-obs: 2026-04-19
- time-obs: 00:04:46.389400000
- date-end: 2026-04-19
- time-end: 02:31:47.366900000
- obs_id: A14_083T10_9000006566
- exposure: 3461.46495688
- 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_57118cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57118cztM0_level2_quad_clean.evt
|
| Size (bytes) | 608,160,960 | 87,364,800 |
| Size | 580.0 MB
| 83.3 MB
|
| Events in quadrant A | 3,164,164 | 646,519 |
| Events in quadrant B | 3,734,044 | 681,490 |
| Events in quadrant C | 8,581,735 | 338,810 |
| Events in quadrant D | 6,527,608 | 525,928 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14149 | 2 |
| B | 0 | 15511 | 2 |
| C | 0 | 29957 | 2 |
| D | 0 | 23780 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6487 | 128 | 1.973177% |
| B | 6487 | 311 | 4.794204% |
| C | 6487 | 3026 | 46.647140% |
| D | 6487 | 826 | 12.733159% |
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 | 8822 | 6489 | 46 | 46 | 0.52% | 0.71% |  |
| B | 8822 | 6489 | 130 | 130 | 1.47% | 2.00% |  |
| C | 8822 | 6487 | 2401 | 2401 | 27.22% | 37.01% |  |
| D | 8822 | 6489 | 817 | 817 | 9.26% | 12.59% |  |
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 | 10 | 251 | 180107 | 1011.22 | 723 | 704 | 177.4 |
| A | 3 | 14 | 110857 | 620.89 | 723 | 704 | 177.4 |
| A | 15 | 16 | 27116 | 148.87 | 723 | 704 | 177.4 |
| B | 10 | 16 | 335466 | 2215.83 | 710 | 681 | 151.1 |
| B | 5 | 172 | 298410 | 1970.57 | 710 | 681 | 151.1 |
| B | 4 | 201 | 60251 | 394.27 | 710 | 681 | 151.1 |
| C | 15 | 198 | 6277085 | 46509.98 | 498 | 494 | 135.0 |
| C | 13 | 3 | 125627 | 927.24 | 498 | 494 | 135.0 |
| C | 6 | 223 | 95348 | 702.87 | 498 | 494 | 135.0 |
| D | 13 | 84 | 1853511 | 9846.57 | 669 | 640 | 188.2 |
| D | 15 | 142 | 1384663 | 7355.01 | 669 | 640 | 188.2 |
| D | 2 | 249 | 210811 | 1116.9 | 669 | 640 | 188.2 |
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 |  |