Observation information
- date-obs: 2025-06-13
- time-obs: 11:08:43.164000000
- date-end: 2025-06-13
- time-end: 16:42:09.967500000
- obs_id: C09_011T06_9000006478
- exposure: 14740.8760349
- 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_52520cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52520cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,895,342,400 | 249,670,080 |
| Size | 1.8 GB
| 238.1 MB
|
| Events in quadrant A | 13,247,763 | 1,678,805 |
| Events in quadrant B | 11,208,367 | 1,863,871 |
| Events in quadrant C | 23,009,342 | 1,253,769 |
| Events in quadrant D | 21,218,539 | 1,442,982 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52952 | 2 |
| B | 0 | 46379 | 2 |
| C | 0 | 81579 | 4 |
| D | 0 | 76444 | 2 |
| 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 | 386 | 0 |
| B | 0 | 386 | 0 |
| C | 0 | 386 | 0 |
| D | 0 | 386 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19142 | 1127 | 5.887577% |
| B | 19142 | 423 | 2.209800% |
| C | 19142 | 4860 | 25.389197% |
| D | 19142 | 2211 | 11.550517% |
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 | 20006 | 19143 | 998 | 998 | 4.99% | 5.21% |  |
| B | 20006 | 19143 | 224 | 224 | 1.12% | 1.17% |  |
| C | 20006 | 19143 | 4635 | 4635 | 23.17% | 24.21% |  |
| D | 20006 | 19143 | 2315 | 2315 | 11.57% | 12.09% |  |
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 | 5 | 243 | 1521388 | 3079.81 | 1979 | 1928 | 493.4 |
| A | 3 | 45 | 1325230 | 2682.21 | 1979 | 1928 | 493.4 |
| A | 12 | 80 | 796051 | 1609.62 | 1979 | 1928 | 493.4 |
| B | 4 | 171 | 782306 | 1883.68 | 1973 | 1906 | 414.3 |
| B | 4 | 21 | 660108 | 1588.72 | 1973 | 1906 | 414.3 |
| B | 10 | 44 | 493119 | 1185.66 | 1973 | 1906 | 414.3 |
| C | 15 | 224 | 9862603 | 20768.85 | 1729 | 1712 | 474.8 |
| C | 2 | 12 | 1461100 | 3073.74 | 1729 | 1712 | 474.8 |
| C | 13 | 3 | 1298159 | 2730.56 | 1729 | 1712 | 474.8 |
| D | 6 | 42 | 2765617 | 5163.62 | 1880 | 1799 | 535.2 |
| D | 8 | 176 | 2182745 | 4074.65 | 1880 | 1799 | 535.2 |
| D | 7 | 126 | 2040872 | 3809.59 | 1880 | 1799 | 535.2 |
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 |  |