Observation information
- date-obs: 2025-05-31
- time-obs: 10:42:45.911400000
- date-end: 2025-05-31
- time-end: 12:49:44.893900000
- obs_id: C09_011T05_9000006474
- exposure: 5481.00885016
- 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_011T05_9000006474_52325cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52325cztM0_level2_quad_clean.evt
|
| Size (bytes) | 751,901,760 | 90,325,440 |
| Size | 717.1 MB
| 86.1 MB
|
| Events in quadrant A | 4,808,188 | 613,970 |
| Events in quadrant B | 7,005,066 | 648,119 |
| Events in quadrant C | 7,823,623 | 494,903 |
| Events in quadrant D | 7,668,903 | 502,651 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19043 | 10 |
| B | 0 | 25622 | 1 |
| C | 0 | 27979 | 3 |
| D | 0 | 27577 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6819 | 536 | 7.860390% |
| B | 6823 | 729 | 10.684450% |
| C | 6823 | 1566 | 22.951781% |
| D | 6823 | 1011 | 14.817529% |
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 | 7619 | 6824 | 411 | 411 | 5.39% | 6.02% |  |
| B | 7620 | 6825 | 520 | 520 | 6.82% | 7.62% |  |
| C | 7620 | 6826 | 1296 | 1296 | 17.01% | 18.99% |  |
| D | 7620 | 6826 | 925 | 925 | 12.14% | 13.55% |  |
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 | 206 | 860238 | 4914.01 | 700 | 682 | 174.9 |
| A | 5 | 243 | 525270 | 2999.03 | 700 | 682 | 174.9 |
| A | 3 | 78 | 105744 | 600.63 | 700 | 682 | 174.9 |
| B | 7 | 0 | 1626431 | 11171.54 | 690 | 666 | 145.5 |
| B | 10 | 254 | 1619756 | 11125.67 | 690 | 666 | 145.5 |
| B | 0 | 213 | 332198 | 2278.14 | 690 | 666 | 145.5 |
| C | 15 | 224 | 3109729 | 18240.6 | 620 | 615 | 170.5 |
| C | 15 | 178 | 500002 | 2929.81 | 620 | 615 | 170.5 |
| C | 9 | 38 | 450955 | 2642.06 | 620 | 615 | 170.5 |
| D | 12 | 17 | 2312421 | 12337.09 | 656 | 626 | 187.4 |
| D | 12 | 2 | 758623 | 4045.12 | 656 | 626 | 187.4 |
| D | 8 | 176 | 638410 | 3403.59 | 656 | 626 | 187.4 |
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 |  |