Observation information
- date-obs: 2025-12-03
- time-obs: 07:11:21.227000000
- date-end: 2025-12-03
- time-end: 09:22:22.003200000
- obs_id: A14_025T01_9000006530
- exposure: 6489.30218101
- sourceid: NGC 3227
- observer: arijit
- ra_pnt: 155.8774
- dec_pnt: 19.86505
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_025T01_9000006530_55086cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55086cztM0_level2_quad_clean.evt
|
| Size (bytes) | 402,327,360 | 98,642,880 |
| Size | 383.7 MB
| 94.1 MB
|
| Events in quadrant A | 3,177,368 | 639,923 |
| Events in quadrant B | 3,256,215 | 691,635 |
| Events in quadrant C | 3,493,420 | 614,478 |
| Events in quadrant D | 4,428,550 | 561,595 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14773 | 199 |
| B | 0 | 14927 | 197 |
| C | 0 | 15629 | 265 |
| D | 0 | 18431 | 284 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 2 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6898 | 264 | 3.827196% |
| B | 6895 | 279 | 4.046410% |
| C | 6895 | 214 | 3.103698% |
| D | 6879 | 405 | 5.887484% |
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 | 7817 | 6991 | 17 | 17 | 0.22% | 0.24% |  |
| B | 7818 | 6993 | 9 | 9 | 0.12% | 0.13% |  |
| C | 7817 | 6988 | 42 | 42 | 0.54% | 0.60% |  |
| D | 7817 | 6981 | 198 | 198 | 2.53% | 2.84% |  |
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 | 0 | 8 | 72290 | 372.28 | 778 | 758 | 192.1 |
| A | 4 | 3 | 26601 | 134.5 | 778 | 758 | 192.1 |
| A | 13 | 254 | 21386 | 107.36 | 778 | 758 | 192.1 |
| B | 5 | 185 | 166825 | 1000.54 | 764 | 732 | 166.0 |
| B | 0 | 182 | 50697 | 300.99 | 764 | 732 | 166.0 |
| B | 12 | 111 | 20824 | 121.03 | 764 | 732 | 166.0 |
| C | 13 | 3 | 165676 | 797.7 | 758 | 750 | 206.8 |
| C | 6 | 223 | 130460 | 627.37 | 758 | 750 | 206.8 |
| C | 12 | 252 | 42343 | 201.17 | 758 | 750 | 206.8 |
| D | 9 | 1 | 454898 | 2157.64 | 749 | 716 | 210.5 |
| D | 11 | 129 | 344132 | 1631.44 | 749 | 716 | 210.5 |
| D | 6 | 239 | 218325 | 1033.78 | 749 | 716 | 210.5 |
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 |  |