Observation information
- date-obs: 2025-10-26
- time-obs: 15:37:37.411600000
- date-end: 2025-10-26
- time-end: 17:39:06.392700000
- obs_id: A14_127T09_9000006520
- exposure: 5893.95902723
- 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_54526cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54526cztM0_level2_quad_clean.evt
|
| Size (bytes) | 441,129,600 | 91,540,800 |
| Size | 420.7 MB
| 87.3 MB
|
| Events in quadrant A | 3,575,059 | 611,620 |
| Events in quadrant B | 3,767,310 | 629,744 |
| Events in quadrant C | 5,201,679 | 538,774 |
| Events in quadrant D | 3,286,414 | 544,221 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15020 | 1 |
| B | 0 | 15659 | 1 |
| C | 0 | 19905 | 5 |
| D | 0 | 14266 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6414 | 74 | 1.153726% |
| B | 6414 | 298 | 4.646087% |
| C | 6413 | 580 | 9.044129% |
| D | 6414 | 89 | 1.387590% |
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 | 7289 | 6414 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7289 | 6414 | 182 | 182 | 2.50% | 2.84% |  |
| C | 7288 | 6413 | 456 | 456 | 6.26% | 7.11% |  |
| D | 7289 | 6414 | 30 | 30 | 0.41% | 0.47% |  |
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 | 3 | 14 | 637197 | 3597.68 | 709 | 693 | 176.9 |
| A | 4 | 3 | 95997 | 538.68 | 709 | 693 | 176.9 |
| A | 4 | 127 | 21686 | 118.66 | 709 | 693 | 176.9 |
| B | 0 | 216 | 640807 | 4304.24 | 689 | 666 | 148.7 |
| B | 0 | 213 | 105751 | 706.58 | 689 | 666 | 148.7 |
| B | 10 | 247 | 58682 | 390.09 | 689 | 666 | 148.7 |
| C | 4 | 5 | 1052475 | 5756.41 | 667 | 663 | 182.7 |
| C | 9 | 38 | 700300 | 3829.01 | 667 | 663 | 182.7 |
| C | 13 | 3 | 459088 | 2508.89 | 667 | 663 | 182.7 |
| D | 3 | 12 | 150958 | 770.96 | 688 | 656 | 195.0 |
| D | 6 | 239 | 115722 | 590.22 | 688 | 656 | 195.0 |
| D | 7 | 70 | 78556 | 399.58 | 688 | 656 | 195.0 |
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 |  |