Observation information
- date-obs: 2025-10-25
- time-obs: 21:43:35.564000000
- date-end: 2025-10-26
- time-end: 00:17:20.531200000
- obs_id: A14_127T09_9000006520
- exposure: 6162.54731339
- 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_54516cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54516cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,925,120 | 103,207,680 |
| Size | 514.9 MB
| 98.4 MB
|
| Events in quadrant A | 3,988,380 | 689,089 |
| Events in quadrant B | 3,912,314 | 738,915 |
| Events in quadrant C | 7,185,211 | 599,966 |
| Events in quadrant D | 4,358,708 | 611,544 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16820 | 2 |
| B | 0 | 16534 | 2 |
| C | 0 | 26201 | 2 |
| D | 0 | 17897 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6975 | 301 | 4.315412% |
| B | 6975 | 283 | 4.057348% |
| C | 6976 | 1033 | 14.807913% |
| D | 6976 | 280 | 4.013761% |
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 | 9225 | 6977 | 164 | 164 | 1.78% | 2.35% |  |
| B | 9225 | 6977 | 88 | 88 | 0.95% | 1.26% |  |
| C | 9226 | 6978 | 803 | 803 | 8.70% | 11.51% |  |
| D | 9226 | 6978 | 148 | 148 | 1.60% | 2.12% |  |
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 | 684721 | 3509.17 | 788 | 769 | 194.9 |
| A | 4 | 3 | 102697 | 522.96 | 788 | 769 | 194.9 |
| A | 3 | 14 | 57329 | 290.19 | 788 | 769 | 194.9 |
| B | 10 | 14 | 406481 | 2380.79 | 787 | 758 | 170.4 |
| B | 5 | 185 | 91648 | 533.34 | 787 | 758 | 170.4 |
| B | 4 | 173 | 82012 | 476.8 | 787 | 758 | 170.4 |
| C | 4 | 5 | 3186095 | 15581.49 | 741 | 735 | 204.4 |
| C | 13 | 3 | 817382 | 3994.71 | 741 | 735 | 204.4 |
| C | 12 | 2 | 83375 | 404.24 | 741 | 735 | 204.4 |
| D | 7 | 70 | 324700 | 1496.2 | 762 | 728 | 216.5 |
| D | 6 | 239 | 187758 | 863.76 | 762 | 728 | 216.5 |
| D | 2 | 172 | 178548 | 821.23 | 762 | 728 | 216.5 |
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 |  |