Observation information
- date-obs: 2025-10-30
- time-obs: 02:43:08.690700000
- date-end: 2025-10-30
- time-end: 04:57:34.672000000
- obs_id: A14_127T09_9000006520
- exposure: 4798.45857924
- 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_54578cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54578cztM0_level2_quad_clean.evt
|
| Size (bytes) | 725,319,360 | 107,199,360 |
| Size | 691.7 MB
| 102.2 MB
|
| Events in quadrant A | 4,719,136 | 758,298 |
| Events in quadrant B | 4,617,926 | 807,094 |
| Events in quadrant C | 11,966,840 | 446,415 |
| Events in quadrant D | 4,919,771 | 674,296 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19760 | 1 |
| B | 0 | 19688 | 1 |
| C | 0 | 40969 | 1 |
| D | 0 | 20646 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 1 | 140683994949672 | 140681653780526 |
| B | 1 | -1 | -1 |
| C | 1 | -1 | -1 |
| D | 1 | -1 | -1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8058 | 212 | 2.630926% |
| B | 8058 | 263 | 3.263837% |
| C | 8058 | 3315 | 41.139241% |
| D | 8058 | 226 | 2.804666% |
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 | 8058 | 8058 | 159 | 159 | 1.97% | 1.97% |  |
| B | 8058 | 8058 | 94 | 94 | 1.17% | 1.17% |  |
| C | 8058 | 8058 | 3059 | 3059 | 37.96% | 37.96% |  |
| D | 8058 | 8058 | 139 | 139 | 1.72% | 1.72% |  |
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 | 511027 | 2333.5 | 883 | 860 | 218.6 |
| A | 3 | 14 | 344693 | 1572.69 | 883 | 860 | 218.6 |
| A | 0 | 8 | 161139 | 733.12 | 883 | 860 | 218.6 |
| B | 4 | 171 | 427803 | 2265.79 | 877 | 845 | 188.4 |
| B | 10 | 14 | 170856 | 902.22 | 877 | 845 | 188.4 |
| B | 8 | 234 | 158448 | 836.37 | 877 | 845 | 188.4 |
| C | 4 | 5 | 8025727 | 45074.89 | 645 | 639 | 178.0 |
| C | 15 | 157 | 671348 | 3767.2 | 645 | 639 | 178.0 |
| C | 13 | 3 | 520750 | 2921.33 | 645 | 639 | 178.0 |
| D | 2 | 37 | 886855 | 3655.72 | 848 | 809 | 242.4 |
| D | 3 | 12 | 323273 | 1330.45 | 848 | 809 | 242.4 |
| D | 15 | 94 | 67876 | 276.71 | 848 | 809 | 242.4 |
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 |  |