Observation information
- date-obs: 2025-07-15
- time-obs: 04:56:34.753200000
- date-end: 2025-07-15
- time-end: 06:56:54.733100000
- obs_id: A13_003T01_9000006486
- exposure: 2300.56726789
- 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_52990cztM0_level2.fits
| modeM0/AS1A13_003T01_9000006486_52990cztM0_level2_quad_clean.evt
|
| Size (bytes) | 973,393,920 | 62,879,040 |
| Size | 928.3 MB
| 60.0 MB
|
| Events in quadrant A | 12,209,237 | 247,626 |
| Events in quadrant B | 2,799,700 | 647,075 |
| Events in quadrant C | 8,669,346 | 380,073 |
| Events in quadrant D | 11,884,441 | 204,390 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 40469 | 21 |
| B | 0 | 12760 | 13 |
| C | 0 | 29924 | 29 |
| D | 0 | 39512 | 45 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6070 | 3972 | 65.436573% |
| B | 6066 | 38 | 0.626442% |
| C | 6070 | 2156 | 35.518946% |
| D | 6068 | 4005 | 66.001978% |
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 | 7219 | 6073 | 3234 | 3234 | 44.80% | 53.25% |  |
| B | 7219 | 6073 | 7 | 7 | 0.10% | 0.12% |  |
| C | 7219 | 6075 | 1771 | 1771 | 24.53% | 29.15% |  |
| D | 7220 | 6075 | 3241 | 3241 | 44.89% | 53.35% |  |
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 | 8736244 | 76418.09 | 456 | 445 | 114.3 |
| A | 15 | 190 | 753604 | 6588.4 | 456 | 445 | 114.3 |
| A | 4 | 249 | 603397 | 5274.44 | 456 | 445 | 114.3 |
| B | 1 | 255 | 44091 | 317.04 | 642 | 620 | 137.1 |
| B | 10 | 254 | 35133 | 251.71 | 642 | 620 | 137.1 |
| B | 10 | 247 | 34356 | 246.04 | 642 | 620 | 137.1 |
| C | 1 | 241 | 3741239 | 26762.53 | 503 | 501 | 139.8 |
| C | 9 | 38 | 798140 | 5706.58 | 503 | 501 | 139.8 |
| C | 15 | 206 | 390164 | 2787.78 | 503 | 501 | 139.8 |
| D | 2 | 62 | 7478317 | 64808.78 | 400 | 382 | 115.4 |
| D | 8 | 176 | 1284028 | 11124.93 | 400 | 382 | 115.4 |
| D | 2 | 37 | 544302 | 4713.97 | 400 | 382 | 115.4 |
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 |  |