Observation information
- date-obs: 2026-04-23
- time-obs: 23:45:52.219100000
- date-end: 2026-04-24
- time-end: 02:15:20.192800000
- obs_id: A14_070T08_9000006568
- exposure: 6120.81671816
- sourceid: NGC2173
- observer: saroonsasi19
- ra_pnt: 89.49167
- dec_pnt: -72.97833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_070T08_9000006568_57192cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57192cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,051,520 | 90,331,200 |
| Size | 476.9 MB
| 86.1 MB
|
| Events in quadrant A | 3,000,103 | 603,023 |
| Events in quadrant B | 4,097,836 | 632,163 |
| Events in quadrant C | 6,640,376 | 497,184 |
| Events in quadrant D | 4,227,040 | 514,633 |
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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14327 | 2 |
| B | 0 | 17069 | 2 |
| C | 0 | 24496 | 8 |
| D | 0 | 17524 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7010 | 50 | 0.713267% |
| B | 7010 | 305 | 4.350927% |
| C | 7009 | 1052 | 15.009274% |
| D | 7009 | 188 | 2.682266% |
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 | 8192 | 7293 | 3 | 3 | 0.04% | 0.04% |  |
| B | 8192 | 7292 | 150 | 150 | 1.83% | 2.06% |  |
| C | 8191 | 7292 | 884 | 884 | 10.79% | 12.12% |  |
| D | 8191 | 7292 | 136 | 136 | 1.66% | 1.87% |  |
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 | 62137 | 328.79 | 748 | 730 | 186.8 |
| A | 13 | 248 | 21886 | 113.28 | 748 | 730 | 186.8 |
| A | 4 | 3 | 13907 | 70.55 | 748 | 730 | 186.8 |
| B | 5 | 185 | 516523 | 3302.56 | 728 | 702 | 156.2 |
| B | 10 | 16 | 252156 | 1609.94 | 728 | 702 | 156.2 |
| B | 0 | 155 | 110095 | 700.39 | 728 | 702 | 156.2 |
| C | 15 | 224 | 2898092 | 15799.03 | 670 | 662 | 183.4 |
| C | 12 | 252 | 737123 | 4015.75 | 670 | 662 | 183.4 |
| C | 14 | 67 | 209423 | 1138.33 | 670 | 662 | 183.4 |
| D | 12 | 33 | 798043 | 3939.51 | 714 | 680 | 202.4 |
| D | 3 | 12 | 142129 | 698.85 | 714 | 680 | 202.4 |
| D | 8 | 240 | 116232 | 570.9 | 714 | 680 | 202.4 |
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 |  |