Observation information
- date-obs: 2025-05-27
- time-obs: 19:53:01.606500000
- date-end: 2025-05-28
- time-end: 00:31:02.569700000
- obs_id: C09_011T05_9000006474
- exposure: 963.907864213
- 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_52273cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52273cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,358,303,040 | 120,712,320 |
| Size | 1.3 GB
| 115.1 MB
|
| Events in quadrant A | 7,430,997 | 937,614 |
| Events in quadrant B | 9,181,348 | 1,045,889 |
| Events in quadrant C | 23,493,786 | 83,872 |
| Events in quadrant D | 9,321,255 | 825,134 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30014 | 25 |
| B | 0 | 34926 | 15 |
| C | 0 | 77289 | 21 |
| D | 0 | 35602 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 222 | 0 |
| B | 0 | 222 | 0 |
| C | 0 | 222 | 0 |
| D | 0 | 222 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11004 | 825 | 7.497274% |
| B | 11004 | 522 | 4.743730% |
| C | 11005 | 10165 | 92.367106% |
| D | 11006 | 1178 | 10.703253% |
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 | 16681 | 11006 | 662 | 662 | 3.97% | 6.01% |  |
| B | 16681 | 11007 | 292 | 292 | 1.75% | 2.65% |  |
| C | 16681 | 11007 | 7746 | 7746 | 46.44% | 70.37% |  |
| D | 16682 | 11009 | 785 | 785 | 4.71% | 7.13% |  |
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 | 2038003 | 7504.76 | 1090 | 1063 | 271.4 |
| A | 4 | 249 | 173290 | 634.54 | 1090 | 1063 | 271.4 |
| A | 15 | 250 | 129899 | 474.67 | 1090 | 1063 | 271.4 |
| B | 10 | 254 | 1432321 | 6126.6 | 1108 | 1071 | 233.6 |
| B | 4 | 171 | 1079816 | 4617.67 | 1108 | 1071 | 233.6 |
| B | 7 | 0 | 896790 | 3834.21 | 1108 | 1071 | 233.6 |
| C | 15 | 158 | 10841681 | 98302.4 | 390 | 386 | 110.3 |
| C | 15 | 178 | 7692315 | 69745.82 | 390 | 386 | 110.3 |
| C | 15 | 224 | 2410207 | 21850.82 | 390 | 386 | 110.3 |
| D | 15 | 78 | 1060454 | 3665.81 | 1022 | 977 | 289.0 |
| D | 15 | 42 | 723755 | 2500.83 | 1022 | 977 | 289.0 |
| D | 12 | 18 | 631039 | 2180.03 | 1022 | 977 | 289.0 |
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 |  |