Observation information
- date-obs: 2025-10-29
- time-obs: 19:28:26.755000000
- date-end: 2025-10-29
- time-end: 21:56:45.719600000
- obs_id: A14_127T09_9000006520
- exposure: 5977.73898697
- 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_54574cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54574cztM0_level2_quad_clean.evt
|
| Size (bytes) | 475,516,800 | 98,622,720 |
| Size | 453.5 MB
| 94.1 MB
|
| Events in quadrant A | 4,140,394 | 643,007 |
| Events in quadrant B | 4,216,088 | 697,911 |
| Events in quadrant C | 3,403,966 | 633,240 |
| Events in quadrant D | 5,330,131 | 553,292 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16752 | 2 |
| B | 0 | 17241 | 4 |
| C | 0 | 14809 | 2 |
| D | 0 | 20574 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 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 | 6578 | 330 | 5.016722% |
| B | 6578 | 347 | 5.275160% |
| C | 6578 | 123 | 1.869869% |
| D | 6578 | 662 | 10.063849% |
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 | 8899 | 6580 | 182 | 182 | 2.05% | 2.77% |  |
| B | 8899 | 6580 | 103 | 103 | 1.16% | 1.57% |  |
| C | 8899 | 6580 | 54 | 54 | 0.61% | 0.82% |  |
| D | 8899 | 6580 | 523 | 523 | 5.88% | 7.95% |  |
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 | 524845 | 2849.88 | 742 | 724 | 183.9 |
| A | 11 | 3 | 486484 | 2641.3 | 742 | 724 | 183.9 |
| A | 0 | 8 | 59586 | 320.06 | 742 | 724 | 183.9 |
| B | 8 | 234 | 462594 | 2910.39 | 740 | 715 | 158.7 |
| B | 0 | 213 | 286834 | 1802.89 | 740 | 715 | 158.7 |
| B | 10 | 14 | 157063 | 985.18 | 740 | 715 | 158.7 |
| C | 13 | 3 | 225701 | 1110.16 | 739 | 735 | 202.6 |
| C | 4 | 5 | 121031 | 593.63 | 739 | 735 | 202.6 |
| C | 14 | 254 | 33966 | 163.99 | 739 | 735 | 202.6 |
| D | 15 | 94 | 2002227 | 9967.93 | 708 | 674 | 200.8 |
| D | 3 | 12 | 268439 | 1333.5 | 708 | 674 | 200.8 |
| D | 10 | 199 | 70194 | 346.22 | 708 | 674 | 200.8 |
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 |  |