Observation information
- date-obs: 2025-12-01
- time-obs: 20:16:42.352700000
- date-end: 2025-12-01
- time-end: 22:40:48.315400000
- obs_id: A14_025T01_9000006530
- exposure: 6063.56473082
- 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_55064cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55064cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,573,760 | 96,851,520 |
| Size | 454.5 MB
| 92.4 MB
|
| Events in quadrant A | 3,769,257 | 639,502 |
| Events in quadrant B | 3,566,001 | 681,964 |
| Events in quadrant C | 3,243,170 | 615,338 |
| Events in quadrant D | 6,535,730 | 523,338 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16162 | 186 |
| B | 0 | 15708 | 176 |
| C | 0 | 14843 | 173 |
| D | 0 | 24819 | 591 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 2 |
| D | 0 | 140 | 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 | 6786 | 135 | 1.989390% |
| B | 6793 | 219 | 3.223907% |
| C | 6787 | 96 | 1.414469% |
| D | 6749 | 821 | 12.164765% |
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 | 8646 | 6835 | 90 | 90 | 1.04% | 1.32% |  |
| B | 8647 | 6841 | 134 | 134 | 1.55% | 1.96% |  |
| C | 8647 | 6833 | 47 | 47 | 0.54% | 0.69% |  |
| D | 8646 | 6809 | 703 | 703 | 8.13% | 10.32% |  |
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 | 570858 | 3119.12 | 738 | 719 | 182.8 |
| A | 15 | 32 | 144310 | 785.56 | 738 | 719 | 182.8 |
| A | 7 | 160 | 99292 | 539.27 | 738 | 719 | 182.8 |
| B | 0 | 143 | 322254 | 2023.26 | 727 | 698 | 158.9 |
| B | 5 | 185 | 246713 | 1547.95 | 727 | 698 | 158.9 |
| B | 2 | 249 | 51075 | 316.98 | 727 | 698 | 158.9 |
| C | 13 | 3 | 177758 | 901.69 | 721 | 716 | 196.3 |
| C | 12 | 252 | 106791 | 540.25 | 721 | 716 | 196.3 |
| C | 6 | 223 | 44391 | 222.44 | 721 | 716 | 196.3 |
| D | 11 | 129 | 1677114 | 8626.92 | 682 | 651 | 194.3 |
| D | 2 | 249 | 913486 | 4697.36 | 682 | 651 | 194.3 |
| D | 6 | 239 | 365590 | 1877.94 | 682 | 651 | 194.3 |
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 |  |