Observation information
- date-obs: 2025-07-14
- time-obs: 01:04:04.205900000
- date-end: 2025-07-14
- time-end: 03:13:21.998900000
- obs_id: A13_003T01_9000006486
- exposure: 1215.26644915
- sourceid: M31N2008-12a
- observer: Judhajeet
- ra_pnt: 11.37
- dec_pnt: 41.90281
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_003T01_9000006486_52972cztM0_level2.fits
| modeM0/AS1A13_003T01_9000006486_52972cztM0_level2_quad_clean.evt
|
| Size (bytes) | 829,592,640 | 80,507,520 |
| Size | 791.2 MB
| 76.8 MB
|
| Events in quadrant A | 16,759,673 | 77,126 |
| Events in quadrant B | 3,420,902 | 707,769 |
| Events in quadrant C | 5,156,550 | 595,874 |
| Events in quadrant D | 4,841,146 | 577,584 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54261 | 0 |
| B | 0 | 15082 | 0 |
| C | 0 | 20323 | 0 |
| D | 0 | 19267 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6827 | 6827 | 100.000000% |
| B | 6827 | 70 | 1.025341% |
| C | 6828 | 492 | 7.205624% |
| D | 6828 | 311 | 4.554774% |
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 | 7756 | 6826 | 6679 | 6679 | 86.11% | 97.85% |  |
| B | 7756 | 6827 | 26 | 26 | 0.34% | 0.38% |  |
| C | 7757 | 6827 | 429 | 429 | 5.53% | 6.28% |  |
| D | 7757 | 6828 | 324 | 324 | 4.18% | 4.75% |  |
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 | 9 | 191 | 16209821 | 602376.42 | 98 | 96 | 26.9 |
| A | 0 | 8 | 75268 | 2793.5 | 98 | 96 | 26.9 |
| A | 7 | 206 | 19325 | 714.58 | 98 | 96 | 26.9 |
| B | 10 | 128 | 88910 | 575.37 | 707 | 683 | 153.3 |
| B | 7 | 0 | 81268 | 525.53 | 707 | 683 | 153.3 |
| B | 10 | 254 | 73593 | 475.48 | 707 | 683 | 153.3 |
| C | 12 | 254 | 802058 | 4388.19 | 667 | 662 | 182.6 |
| C | 2 | 12 | 371653 | 2031.43 | 667 | 662 | 182.6 |
| C | 15 | 224 | 354875 | 1939.56 | 667 | 662 | 182.6 |
| D | 8 | 176 | 1001608 | 5143.98 | 675 | 646 | 194.6 |
| D | 2 | 62 | 204912 | 1049.73 | 675 | 646 | 194.6 |
| D | 2 | 153 | 179459 | 918.93 | 675 | 646 | 194.6 |
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 |  |