Observation information
- date-obs: 2025-06-15
- time-obs: 16:58:11.569600000
- date-end: 2025-06-15
- time-end: 18:57:46.550400000
- obs_id: C09_011T06_9000006478
- exposure: 2160.98400998
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T06_9000006478_52551cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52551cztM0_level2_quad_clean.evt
|
| Size (bytes) | 913,351,680 | 71,585,280 |
| Size | 871.0 MB
| 68.3 MB
|
| Events in quadrant A | 4,554,069 | 574,072 |
| Events in quadrant B | 8,329,546 | 509,176 |
| Events in quadrant C | 7,510,374 | 439,762 |
| Events in quadrant D | 12,933,880 | 208,770 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18115 | 1 |
| B | 0 | 29041 | 1 |
| C | 0 | 26786 | 1 |
| D | 0 | 42683 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6230 | 587 | 9.422151% |
| B | 6230 | 1612 | 25.874799% |
| C | 6231 | 1585 | 25.437329% |
| D | 6231 | 4242 | 68.078960% |
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 | 7175 | 6231 | 458 | 458 | 6.38% | 7.35% |  |
| B | 7175 | 6231 | 1226 | 1226 | 17.09% | 19.68% |  |
| C | 7176 | 6232 | 1363 | 1363 | 18.99% | 21.87% |  |
| D | 7175 | 6231 | 3790 | 3790 | 52.82% | 60.82% |  |
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 | 15 | 239 | 860099 | 5419.79 | 633 | 619 | 158.6 |
| A | 4 | 249 | 623551 | 3928.15 | 633 | 619 | 158.6 |
| A | 4 | 159 | 236709 | 1488.76 | 633 | 619 | 158.6 |
| B | 4 | 170 | 2842148 | 23110.79 | 578 | 559 | 123.0 |
| B | 10 | 44 | 2761273 | 22453.02 | 578 | 559 | 123.0 |
| B | 13 | 245 | 64762 | 522.17 | 578 | 559 | 123.0 |
| C | 15 | 248 | 2941169 | 18617.48 | 561 | 555 | 157.9 |
| C | 15 | 231 | 914484 | 5786.23 | 561 | 555 | 157.9 |
| C | 13 | 3 | 646963 | 4092.51 | 561 | 555 | 157.9 |
| D | 6 | 42 | 8398898 | 69615.41 | 409 | 389 | 120.6 |
| D | 8 | 176 | 1042940 | 8641.73 | 409 | 389 | 120.6 |
| D | 15 | 125 | 602918 | 4994.37 | 409 | 389 | 120.6 |
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 |  |