Observation information
- date-obs: 2025-10-14
- time-obs: 03:18:12.239700000
- date-end: 2025-10-14
- time-end: 05:31:26.217400000
- obs_id: A14_126T15_9000006516
- exposure: 2908.97840321
- sourceid: FBS1133+754
- observer: sharmila
- ra_pnt: 174.1395
- dec_pnt: 75.11491
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_126T15_9000006516_54341cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54341cztM0_level2_quad_clean.evt
|
| Size (bytes) | 668,148,480 | 84,355,200 |
| Size | 637.2 MB
| 80.4 MB
|
| Events in quadrant A | 2,947,621 | 640,405 |
| Events in quadrant B | 3,625,976 | 676,571 |
| Events in quadrant C | 5,787,823 | 535,022 |
| Events in quadrant D | 11,873,361 | 255,431 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13539 | 5 |
| B | 0 | 15178 | 2 |
| C | 0 | 21731 | 2 |
| D | 0 | 39719 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6408 | 50 | 0.780275% |
| B | 6410 | 187 | 2.917317% |
| C | 6410 | 884 | 13.790952% |
| D | 6409 | 3652 | 56.982369% |
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 | 7585 | 6410 | 24 | 24 | 0.32% | 0.37% |  |
| B | 7585 | 6411 | 104 | 104 | 1.37% | 1.62% |  |
| C | 7585 | 6411 | 865 | 865 | 11.40% | 13.49% |  |
| D | 7585 | 6410 | 3466 | 3466 | 45.70% | 54.07% |  |
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 | 0 | 8 | 127914 | 748.9 | 685 | 667 | 169.9 |
| A | 8 | 246 | 46656 | 270.66 | 685 | 667 | 169.9 |
| A | 5 | 243 | 44152 | 255.92 | 685 | 667 | 169.9 |
| B | 5 | 185 | 338985 | 2370.04 | 673 | 651 | 142.8 |
| B | 7 | 0 | 235486 | 1645.02 | 673 | 651 | 142.8 |
| B | 0 | 213 | 89123 | 619.75 | 673 | 651 | 142.8 |
| C | 15 | 147 | 1421940 | 8259.8 | 624 | 620 | 172.1 |
| C | 1 | 241 | 767185 | 4454.79 | 624 | 620 | 172.1 |
| C | 13 | 3 | 544480 | 3160.57 | 624 | 620 | 172.1 |
| D | 8 | 176 | 9208890 | 81123.69 | 395 | 375 | 113.5 |
| D | 15 | 108 | 843258 | 7425.5 | 395 | 375 | 113.5 |
| D | 2 | 252 | 148248 | 1302.71 | 395 | 375 | 113.5 |
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 |  |