Observation information
- date-obs: 2025-12-01
- time-obs: 05:16:50.485100000
- date-end: 2025-12-01
- time-end: 12:19:01.423300000
- obs_id: A14_025T01_9000006530
- exposure: 21453.2761078
- 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_55058cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55058cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,561,544,640 | 333,216,000 |
| Size | 1.5 GB
| 317.8 MB
|
| Events in quadrant A | 10,816,262 | 2,206,865 |
| Events in quadrant B | 15,863,090 | 2,258,216 |
| Events in quadrant C | 12,431,803 | 2,092,656 |
| Events in quadrant D | 16,879,060 | 1,919,205 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 49628 | 5 |
| B | 0 | 64167 | 3 |
| C | 0 | 54142 | 6 |
| D | 0 | 66342 | 10 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 476 | 0 |
| B | 0 | 476 | 0 |
| C | 0 | 476 | 0 |
| D | 0 | 476 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 23420 | 540 | 2.305722% |
| B | 23421 | 2109 | 9.004739% |
| C | 23420 | 714 | 3.048676% |
| D | 23420 | 1309 | 5.589240% |
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 | 25331 | 23424 | 65 | 65 | 0.26% | 0.28% |  |
| B | 25331 | 23425 | 1100 | 1100 | 4.34% | 4.70% |  |
| C | 25331 | 23425 | 343 | 343 | 1.35% | 1.46% |  |
| D | 25332 | 23425 | 865 | 865 | 3.41% | 3.69% |  |
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 | 210271 | 326.36 | 2610 | 2549 | 636.5 |
| A | 3 | 14 | 136195 | 209.98 | 2610 | 2549 | 636.5 |
| A | 6 | 161 | 106947 | 164.02 | 2610 | 2549 | 636.5 |
| B | 4 | 81 | 3293574 | 6093.06 | 2509 | 2412 | 540.1 |
| B | 5 | 185 | 1943377 | 3593.39 | 2509 | 2412 | 540.1 |
| B | 2 | 249 | 388336 | 714.48 | 2509 | 2412 | 540.1 |
| C | 12 | 250 | 732212 | 1064.35 | 2525 | 2504 | 685.6 |
| C | 9 | 38 | 517718 | 751.49 | 2525 | 2504 | 685.6 |
| C | 13 | 3 | 499579 | 725.03 | 2525 | 2504 | 685.6 |
| D | 11 | 129 | 1685996 | 2368.31 | 2496 | 2382 | 710.9 |
| D | 6 | 239 | 841140 | 1179.87 | 2496 | 2382 | 710.9 |
| D | 15 | 94 | 773393 | 1084.57 | 2496 | 2382 | 710.9 |
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 |  |