Observation information
- date-obs: 2025-12-03
- time-obs: 18:01:51.926300000
- date-end: 2025-12-04
- time-end: 04:33:22.823500000
- obs_id: A14_025T01_9000006530
- exposure: 28564.3577638
- 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_55098cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55098cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,147,400,000 | 470,059,200 |
| Size | 2.0 GB
| 448.3 MB
|
| Events in quadrant A | 14,282,312 | 3,151,218 |
| Events in quadrant B | 14,498,029 | 3,383,295 |
| Events in quadrant C | 19,452,822 | 2,939,953 |
| Events in quadrant D | 28,808,059 | 2,582,628 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 66521 | 151 |
| B | 0 | 67118 | 117 |
| C | 0 | 80513 | 121 |
| D | 0 | 108122 | 163 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 644 | 0 |
| B | 0 | 644 | 2 |
| C | 0 | 644 | 0 |
| D | 0 | 644 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 63 | 0 |
| B | 0 | 63 | 0 |
| C | 0 | 63 | 0 |
| D | 0 | 63 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 31664 | 231 | 0.729535% |
| B | 31668 | 366 | 1.155741% |
| C | 31668 | 904 | 2.854617% |
| D | 31669 | 3556 | 11.228646% |
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 | 37852 | 31684 | 63 | 63 | 0.17% | 0.20% |  |
| B | 37870 | 31690 | 55 | 55 | 0.15% | 0.17% |  |
| C | 37857 | 31684 | 658 | 658 | 1.74% | 2.08% |  |
| D | 37864 | 31684 | 3373 | 3373 | 8.91% | 10.65% |  |
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 | 61 | 259794 | 303.08 | 3447 | 3375 | 846.0 |
| A | 4 | 3 | 248165 | 289.34 | 3447 | 3375 | 846.0 |
| A | 0 | 8 | 154684 | 178.84 | 3447 | 3375 | 846.0 |
| B | 4 | 21 | 530854 | 721.75 | 3408 | 3285 | 731.0 |
| B | 5 | 185 | 233400 | 314.81 | 3408 | 3285 | 731.0 |
| B | 5 | 172 | 105976 | 140.49 | 3408 | 3285 | 731.0 |
| C | 3 | 242 | 2610232 | 2860.01 | 3312 | 3277 | 911.5 |
| C | 13 | 3 | 1321850 | 1446.56 | 3312 | 3277 | 911.5 |
| C | 6 | 223 | 1086778 | 1188.67 | 3312 | 3277 | 911.5 |
| D | 2 | 249 | 5304744 | 5820.57 | 3186 | 3047 | 910.9 |
| D | 15 | 94 | 4199491 | 4607.15 | 3186 | 3047 | 910.9 |
| D | 6 | 239 | 2317771 | 2541.26 | 3186 | 3047 | 910.9 |
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 |  |