Observation information
- date-obs: 2025-07-11
- time-obs: 12:17:13.568900000
- date-end: 2025-07-11
- time-end: 14:27:50.551900000
- obs_id: A13_003T01_9000006486
- exposure: 223.95116514
- 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_52935cztM0_level2.fits
| modeM0/AS1A13_003T01_9000006486_52935cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,006,744,320 | 75,165,120 |
| Size | 960.1 MB
| 71.7 MB
|
| Events in quadrant A | 17,221,954 | 21,868 |
| Events in quadrant B | 3,591,538 | 716,514 |
| Events in quadrant C | 7,151,198 | 547,057 |
| Events in quadrant D | 8,765,516 | 507,245 |
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 | 55966 | 1 |
| B | 0 | 15514 | 1 |
| C | 0 | 26043 | 1 |
| D | 0 | 30888 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6932 | 6773 | 97.706290% |
| B | 6933 | 201 | 2.899178% |
| C | 6933 | 1093 | 15.765181% |
| D | 6933 | 1364 | 19.674023% |
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 | 7836 | 6931 | 6051 | 6051 | 77.22% | 87.30% |  |
| B | 7838 | 6934 | 46 | 46 | 0.59% | 0.66% |  |
| C | 7838 | 6934 | 828 | 828 | 10.56% | 11.94% |  |
| D | 7838 | 6934 | 1117 | 1117 | 14.25% | 16.11% |  |
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 | 15704873 | 207527.05 | 301 | 295 | 75.7 |
| A | 4 | 254 | 129855 | 1712.06 | 301 | 295 | 75.7 |
| A | 13 | 248 | 53643 | 704.96 | 301 | 295 | 75.7 |
| B | 1 | 255 | 296141 | 1828.6 | 759 | 733 | 161.5 |
| B | 4 | 81 | 52596 | 321.03 | 759 | 733 | 161.5 |
| B | 10 | 247 | 46406 | 282.72 | 759 | 733 | 161.5 |
| C | 15 | 224 | 1498642 | 7808.01 | 699 | 690 | 191.8 |
| C | 9 | 38 | 930545 | 4846.83 | 699 | 690 | 191.8 |
| C | 15 | 178 | 618301 | 3219.27 | 699 | 690 | 191.8 |
| D | 8 | 176 | 2407422 | 12186.62 | 693 | 662 | 197.5 |
| D | 6 | 42 | 1019626 | 5159.52 | 693 | 662 | 197.5 |
| D | 15 | 78 | 497997 | 2518.25 | 693 | 662 | 197.5 |
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 |  |