Observation information
- date-obs: 2025-10-25
- time-obs: 01:01:29.744400000
- date-end: 2025-10-25
- time-end: 03:33:33.709500000
- obs_id: A14_127T09_9000006520
- exposure: 6382.96993434
- 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_54503cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54503cztM0_level2_quad_clean.evt
|
| Size (bytes) | 433,765,440 | 101,750,400 |
| Size | 413.7 MB
| 97.0 MB
|
| Events in quadrant A | 3,112,662 | 681,119 |
| Events in quadrant B | 5,045,237 | 684,061 |
| Events in quadrant C | 3,900,195 | 634,095 |
| Events in quadrant D | 3,459,043 | 598,954 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14538 | 2 |
| B | 0 | 19854 | 2 |
| C | 0 | 16734 | 2 |
| D | 0 | 15325 | 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 | 22 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6947 | 30 | 0.431841% |
| B | 6947 | 573 | 8.248165% |
| C | 6947 | 163 | 2.346337% |
| D | 6889 | 38 | 0.551604% |
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 | 7977 | 6948 | 5 | 5 | 0.06% | 0.07% |  |
| B | 7977 | 6948 | 419 | 419 | 5.25% | 6.03% |  |
| C | 7977 | 6948 | 110 | 110 | 1.38% | 1.58% |  |
| D | 7977 | 6891 | 28 | 28 | 0.35% | 0.41% |  |
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 | 8 | 245 | 60966 | 323.82 | 754 | 734 | 186.0 |
| A | 4 | 3 | 49233 | 260.74 | 754 | 734 | 186.0 |
| A | 12 | 15 | 20208 | 104.7 | 754 | 734 | 186.0 |
| B | 2 | 249 | 1193631 | 7552.53 | 732 | 703 | 158.0 |
| B | 5 | 172 | 647235 | 4093.25 | 732 | 703 | 158.0 |
| B | 10 | 247 | 112931 | 710.53 | 732 | 703 | 158.0 |
| C | 13 | 3 | 404422 | 2004.62 | 731 | 725 | 201.4 |
| C | 4 | 5 | 382405 | 1895.29 | 731 | 725 | 201.4 |
| C | 15 | 209 | 87220 | 429.5 | 731 | 725 | 201.4 |
| D | 8 | 160 | 247080 | 1196.81 | 721 | 689 | 205.9 |
| D | 3 | 12 | 73300 | 352.7 | 721 | 689 | 205.9 |
| D | 7 | 70 | 67987 | 326.89 | 721 | 689 | 205.9 |
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 |  |