Observation information
- date-obs: 2025-06-17
- time-obs: 03:40:01.296700000
- date-end: 2025-06-17
- time-end: 05:40:44.281500000
- obs_id: C09_011T06_9000006478
- exposure: 5662.77301371
- 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_52573cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52573cztM0_level2_quad_clean.evt
|
| Size (bytes) | 626,221,440 | 93,162,240 |
| Size | 597.2 MB
| 88.8 MB
|
| Events in quadrant A | 3,374,684 | 628,963 |
| Events in quadrant B | 6,752,270 | 646,561 |
| Events in quadrant C | 4,054,162 | 594,811 |
| Events in quadrant D | 8,472,093 | 475,078 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15359 | 1 |
| B | 0 | 24850 | 1 |
| C | 0 | 17156 | 1 |
| D | 0 | 29948 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6813 | 118 | 1.731983% |
| B | 6813 | 512 | 7.515045% |
| C | 6813 | 181 | 2.656686% |
| D | 6813 | 1373 | 20.152649% |
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 | 7244 | 6814 | 77 | 77 | 1.06% | 1.13% |  |
| B | 7244 | 6814 | 368 | 368 | 5.08% | 5.40% |  |
| C | 7244 | 6814 | 143 | 143 | 1.97% | 2.10% |  |
| D | 7244 | 6814 | 1491 | 1491 | 20.58% | 21.88% |  |
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 | 7 | 254 | 144545 | 819.59 | 697 | 681 | 175.5 |
| A | 5 | 243 | 129120 | 731.72 | 697 | 681 | 175.5 |
| A | 4 | 249 | 94614 | 535.14 | 697 | 681 | 175.5 |
| B | 10 | 254 | 3019735 | 20604.82 | 681 | 658 | 146.5 |
| B | 7 | 0 | 199778 | 1358.97 | 681 | 658 | 146.5 |
| B | 4 | 81 | 141144 | 958.8 | 681 | 658 | 146.5 |
| C | 13 | 3 | 658265 | 3546.18 | 667 | 662 | 185.4 |
| C | 12 | 249 | 232370 | 1249.5 | 667 | 662 | 185.4 |
| C | 15 | 248 | 197177 | 1059.72 | 667 | 662 | 185.4 |
| D | 6 | 42 | 2338144 | 13055.81 | 621 | 592 | 179.0 |
| D | 8 | 176 | 1253526 | 6997.95 | 621 | 592 | 179.0 |
| D | 2 | 62 | 825067 | 4604.9 | 621 | 592 | 179.0 |
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 |  |