Observation information
- date-obs: 2025-10-24
- time-obs: 11:27:02.866500000
- date-end: 2025-10-24
- time-end: 17:06:21.817300000
- obs_id: A14_127T09_9000006520
- exposure: 17157.2651341
- 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_54496cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54496cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,363,619,520 | 257,094,720 |
| Size | 1.3 GB
| 245.2 MB
|
| Events in quadrant A | 9,691,636 | 1,727,517 |
| Events in quadrant B | 13,565,085 | 1,724,745 |
| Events in quadrant C | 13,466,229 | 1,558,455 |
| Events in quadrant D | 12,271,736 | 1,454,195 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42634 | 2 |
| B | 0 | 53859 | 2 |
| C | 0 | 53031 | 2 |
| D | 0 | 50352 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 386 | 0 |
| B | 0 | 386 | 0 |
| C | 0 | 386 | 0 |
| D | 0 | 386 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19143 | 673 | 3.515645% |
| B | 19142 | 1930 | 10.082541% |
| C | 19143 | 1470 | 7.679047% |
| D | 19143 | 1448 | 7.564123% |
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 | 20359 | 19145 | 174 | 174 | 0.85% | 0.91% |  |
| B | 20358 | 19144 | 1131 | 1131 | 5.56% | 5.91% |  |
| C | 20359 | 19145 | 940 | 940 | 4.62% | 4.91% |  |
| D | 20359 | 19145 | 934 | 934 | 4.59% | 4.88% |  |
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 | 672748 | 1287.14 | 2114 | 2057 | 521.1 |
| A | 12 | 15 | 190909 | 362.43 | 2114 | 2057 | 521.1 |
| A | 7 | 237 | 189664 | 360.04 | 2114 | 2057 | 521.1 |
| B | 5 | 172 | 2972299 | 6931.33 | 1997 | 1920 | 428.5 |
| B | 5 | 185 | 1125257 | 2621.29 | 1997 | 1920 | 428.5 |
| B | 2 | 249 | 475692 | 1105.54 | 1997 | 1920 | 428.5 |
| C | 12 | 250 | 1927140 | 3543.07 | 2005 | 1987 | 543.4 |
| C | 1 | 16 | 960789 | 1764.59 | 2005 | 1987 | 543.4 |
| C | 7 | 64 | 907438 | 1666.4 | 2005 | 1987 | 543.4 |
| D | 3 | 12 | 1623107 | 2869.54 | 2005 | 1920 | 565.0 |
| D | 8 | 176 | 1065437 | 1882.45 | 2005 | 1920 | 565.0 |
| D | 9 | 19 | 519212 | 915.62 | 2005 | 1920 | 565.0 |
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 |  |