Observation information
- date-obs: 2025-10-28
- time-obs: 01:50:38.116400000
- date-end: 2025-10-28
- time-end: 04:25:15.094400000
- obs_id: A14_127T09_9000006520
- exposure: 7306.12760234
- sourceid: PG0909+276
- observer: snehalata
- ra_pnt: 138.2153
- dec_pnt: 27.34205
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_127T09_9000006520_54548cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54548cztM0_level2_quad_clean.evt
|
| Size (bytes) | 464,993,280 | 110,623,680 |
| Size | 443.5 MB
| 105.5 MB
|
| Events in quadrant A | 3,516,605 | 731,747 |
| Events in quadrant B | 3,642,775 | 777,928 |
| Events in quadrant C | 4,903,655 | 671,897 |
| Events in quadrant D | 4,555,593 | 637,164 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16247 | 2 |
| B | 0 | 16583 | 2 |
| C | 0 | 20199 | 2 |
| D | 0 | 19196 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7636 | 59 | 0.772656% |
| B | 7636 | 122 | 1.597695% |
| C | 7637 | 338 | 4.425822% |
| D | 7636 | 241 | 3.156103% |
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 | 9277 | 7638 | 22 | 22 | 0.24% | 0.29% |  |
| B | 9277 | 7637 | 27 | 27 | 0.29% | 0.35% |  |
| C | 9278 | 7639 | 287 | 287 | 3.09% | 3.76% |  |
| D | 9277 | 7638 | 236 | 236 | 2.54% | 3.09% |  |
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 | 11 | 3 | 150105 | 718.65 | 834 | 813 | 207.7 |
| A | 4 | 3 | 37370 | 175.97 | 834 | 813 | 207.7 |
| A | 3 | 14 | 25368 | 118.2 | 834 | 813 | 207.7 |
| B | 8 | 234 | 109168 | 606.89 | 827 | 797 | 178.6 |
| B | 0 | 213 | 94318 | 523.73 | 827 | 797 | 178.6 |
| B | 10 | 247 | 53514 | 295.22 | 827 | 797 | 178.6 |
| C | 12 | 254 | 965347 | 4402.11 | 799 | 792 | 219.1 |
| C | 13 | 3 | 195334 | 887.86 | 799 | 792 | 219.1 |
| C | 1 | 45 | 182407 | 828.87 | 799 | 792 | 219.1 |
| D | 10 | 181 | 475472 | 2098.66 | 795 | 760 | 226.2 |
| D | 8 | 160 | 310134 | 1367.72 | 795 | 760 | 226.2 |
| D | 6 | 239 | 287517 | 1267.73 | 795 | 760 | 226.2 |
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 |  |