Observation information
- date-obs: 2025-12-04
- time-obs: 23:01:20.653000000
- date-end: 2025-12-05
- time-end: 01:22:09.629300000
- obs_id: A14_025T01_9000006530
- exposure: 6522.7051366
- 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_55111cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55111cztM0_level2_quad_clean.evt
|
| Size (bytes) | 404,020,800 | 101,986,560 |
| Size | 385.3 MB
| 97.3 MB
|
| Events in quadrant A | 4,446,356 | 655,304 |
| Events in quadrant B | 3,162,523 | 729,420 |
| Events in quadrant C | 3,571,497 | 638,830 |
| Events in quadrant D | 3,246,719 | 591,065 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17950 | 2 |
| B | 0 | 14020 | 2 |
| C | 0 | 15354 | 2 |
| D | 0 | 14985 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6794 | 244 | 3.591404% |
| B | 6794 | 47 | 0.691787% |
| C | 6794 | 73 | 1.074477% |
| D | 6793 | 92 | 1.354335% |
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 | 7954 | 6795 | 219 | 219 | 2.75% | 3.22% |  |
| B | 7954 | 6795 | 3 | 3 | 0.04% | 0.04% |  |
| C | 7954 | 6795 | 48 | 48 | 0.60% | 0.71% |  |
| D | 7953 | 6794 | 64 | 64 | 0.80% | 0.94% |  |
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 | 5 | 241 | 1546341 | 8698.36 | 717 | 702 | 177.7 |
| A | 0 | 8 | 72458 | 403.82 | 717 | 702 | 177.7 |
| A | 3 | 14 | 13783 | 73.62 | 717 | 702 | 177.7 |
| B | 0 | 63 | 253551 | 1620.59 | 724 | 696 | 156.0 |
| B | 10 | 247 | 21445 | 132.98 | 724 | 696 | 156.0 |
| B | 12 | 111 | 18961 | 117.06 | 724 | 696 | 156.0 |
| C | 3 | 242 | 356028 | 1830.15 | 705 | 700 | 194.2 |
| C | 13 | 3 | 195301 | 1002.31 | 705 | 700 | 194.2 |
| C | 14 | 254 | 58398 | 297.18 | 705 | 700 | 194.2 |
| D | 12 | 6 | 101398 | 507.97 | 693 | 663 | 198.3 |
| D | 2 | 252 | 82950 | 414.94 | 693 | 663 | 198.3 |
| D | 15 | 94 | 74203 | 370.84 | 693 | 663 | 198.3 |
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 |  |