Observation information
- date-obs: 2025-07-14
- time-obs: 16:41:41.871300000
- date-end: 2025-07-14
- time-end: 18:47:59.853100000
- obs_id: A13_003T01_9000006486
- exposure: 3672.63004583
- 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_52982cztM0_level2.fits
| modeM0/AS1A13_003T01_9000006486_52982cztM0_level2_quad_clean.evt
|
| Size (bytes) | 922,760,640 | 92,249,280 |
| Size | 880.0 MB
| 88.0 MB
|
| Events in quadrant A | 12,755,346 | 357,587 |
| Events in quadrant B | 3,933,779 | 779,830 |
| Events in quadrant C | 7,908,729 | 586,552 |
| Events in quadrant D | 8,973,477 | 541,599 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43029 | 1 |
| B | 0 | 17022 | 0 |
| C | 0 | 28699 | 0 |
| D | 0 | 31839 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7577 | 4010 | 52.923321% |
| B | 7577 | 108 | 1.425366% |
| C | 7578 | 1266 | 16.706255% |
| D | 7578 | 1506 | 19.873317% |
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 | 7577 | 7576 | 3336 | 3336 | 44.03% | 44.03% |  |
| B | 7577 | 7577 | 41 | 41 | 0.54% | 0.54% |  |
| C | 7578 | 7578 | 1153 | 1153 | 15.22% | 15.22% |  |
| D | 7578 | 7578 | 1372 | 1372 | 18.11% | 18.11% |  |
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 | 10005457 | 73022.02 | 545 | 532 | 137.0 |
| A | 0 | 8 | 119799 | 870.48 | 545 | 532 | 137.0 |
| A | 10 | 253 | 96848 | 702.97 | 545 | 532 | 137.0 |
| B | 10 | 128 | 214003 | 1215.86 | 821 | 793 | 175.4 |
| B | 10 | 63 | 105536 | 597.31 | 821 | 793 | 175.4 |
| B | 10 | 254 | 73838 | 416.55 | 821 | 793 | 175.4 |
| C | 9 | 38 | 1233255 | 5996.11 | 756 | 751 | 205.6 |
| C | 2 | 12 | 1106796 | 5380.89 | 756 | 751 | 205.6 |
| C | 4 | 5 | 1002187 | 4871.97 | 756 | 751 | 205.6 |
| D | 0 | 5 | 2611190 | 12427.87 | 738 | 705 | 210.1 |
| D | 8 | 176 | 1727965 | 8223.06 | 738 | 705 | 210.1 |
| D | 2 | 62 | 514489 | 2446.0 | 738 | 705 | 210.1 |
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 |  |