Observation information
- date-obs: 2025-06-24
- time-obs: 05:49:28.939400000
- date-end: 2025-06-24
- time-end: 12:59:20.881100000
- obs_id: C09_011T07_9000006480
- exposure: 6377.51685655
- 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_011T07_9000006480_52681cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52681cztM0_level2_quad_clean.evt
|
| Size (bytes) | 3,611,669,760 | 249,701,760 |
| Size | 3.4 GB
| 238.1 MB
|
| Events in quadrant A | 15,628,901 | 2,137,437 |
| Events in quadrant B | 32,830,006 | 1,817,475 |
| Events in quadrant C | 31,878,079 | 1,460,057 |
| Events in quadrant D | 51,540,214 | 515,245 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 480 | 0 |
| B | 0 | 480 | 0 |
| C | 0 | 480 | 0 |
| D | 0 | 480 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 62902 | 4 |
| B | 0 | 114179 | 4 |
| C | 0 | 111178 | 12 |
| D | 0 | 169224 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 23658 | 790 | 3.339251% |
| B | 23658 | 5717 | 24.165187% |
| C | 23657 | 6030 | 25.489284% |
| D | 23657 | 17903 | 75.677389% |
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 | 25793 | 23663 | 435 | 435 | 1.69% | 1.84% |  |
| B | 25793 | 23663 | 4508 | 4508 | 17.48% | 19.05% |  |
| C | 25792 | 23662 | 5754 | 5754 | 22.31% | 24.32% |  |
| D | 25792 | 23662 | 15590 | 15590 | 60.45% | 65.89% |  |
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 | 3170311 | 5191.22 | 2442 | 2380 | 610.2 |
| A | 3 | 114 | 443631 | 723.07 | 2442 | 2380 | 610.2 |
| A | 15 | 174 | 267257 | 434.05 | 2442 | 2380 | 610.2 |
| B | 10 | 128 | 15106844 | 31770.78 | 2254 | 2177 | 475.4 |
| B | 12 | 32 | 3551686 | 7465.95 | 2254 | 2177 | 475.4 |
| B | 2 | 249 | 740426 | 1552.81 | 2254 | 2177 | 475.4 |
| C | 15 | 248 | 15659323 | 26697.05 | 2137 | 2120 | 586.5 |
| C | 15 | 234 | 2250259 | 3833.29 | 2137 | 2120 | 586.5 |
| C | 9 | 38 | 840176 | 1428.97 | 2137 | 2120 | 586.5 |
| D | 8 | 176 | 43205374 | 131244.49 | 1122 | 1069 | 329.2 |
| D | 1 | 7 | 1216738 | 3692.91 | 1122 | 1069 | 329.2 |
| D | 2 | 153 | 885386 | 2686.34 | 1122 | 1069 | 329.2 |
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 |  |