Observation information
- date-obs: 2026-07-13
- time-obs: 06:28:51.552200000
- date-end: 2026-07-13
- time-end: 08:32:41.040200000
- obs_id: A14_045T01_9000006590
- exposure: 5128.85307187
- sourceid: NGC 4383
- observer: ujjwalkrishnan
- ra_pnt: 186.3563
- dec_pnt: 16.47013
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_045T01_9000006590_58385cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58385cztM0_level2_quad_clean.evt
|
| Size (bytes) | 593,101,440 | 97,781,760 |
| Size | 565.6 MB
| 93.3 MB
|
| Events in quadrant A | 4,550,522 | 655,849 |
| Events in quadrant B | 8,408,530 | 530,254 |
| Events in quadrant C | 3,650,923 | 654,619 |
| Events in quadrant D | 4,773,102 | 608,630 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18635 | 1 |
| B | 0 | 29990 | 1 |
| C | 0 | 16238 | 1 |
| D | 0 | 19091 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7350 | 616 | 8.380952% |
| B | 7351 | 2321 | 31.573936% |
| C | 7351 | 341 | 4.638825% |
| D | 7351 | 406 | 5.523058% |
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 | 7430 | 7350 | 205 | 205 | 2.76% | 2.79% |  |
| B | 7431 | 7351 | 1492 | 1492 | 20.08% | 20.30% |  |
| C | 7431 | 7351 | 42 | 42 | 0.57% | 0.57% |  |
| D | 7431 | 7351 | 134 | 134 | 1.80% | 1.82% |  |
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 | 249 | 421292 | 2055.55 | 827 | 803 | 204.6 |
| A | 3 | 244 | 397508 | 1939.29 | 827 | 803 | 204.6 |
| A | 12 | 80 | 179030 | 871.26 | 827 | 803 | 204.6 |
| B | 5 | 172 | 2786423 | 17801.36 | 720 | 691 | 156.5 |
| B | 6 | 255 | 1381185 | 8821.62 | 720 | 691 | 156.5 |
| B | 5 | 185 | 787304 | 5026.61 | 720 | 691 | 156.5 |
| C | 4 | 5 | 243086 | 1070.59 | 821 | 812 | 226.3 |
| C | 9 | 237 | 60816 | 265.15 | 821 | 812 | 226.3 |
| C | 14 | 254 | 23276 | 99.27 | 821 | 812 | 226.3 |
| D | 11 | 129 | 542742 | 2364.55 | 818 | 782 | 229.2 |
| D | 2 | 249 | 412461 | 1796.14 | 818 | 782 | 229.2 |
| D | 10 | 86 | 141857 | 615.5 | 818 | 782 | 229.2 |
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 |  |