Observation information
- date-obs: 2025-07-07
- time-obs: 18:05:23.292800000
- date-end: 2025-07-07
- time-end: 20:11:55.276500000
- obs_id: C09_011T08_9000006482
- exposure: 1968.35605091
- 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_011T08_9000006482_52879cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52879cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,098,432,000 | 82,923,840 |
| Size | 1.0 GB
| 79.1 MB
|
| Events in quadrant A | 15,887,098 | 198,568 |
| Events in quadrant B | 8,369,108 | 622,609 |
| Events in quadrant C | 5,950,857 | 630,708 |
| Events in quadrant D | 9,867,101 | 530,015 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52235 | 0 |
| B | 0 | 30071 | 0 |
| C | 0 | 23262 | 0 |
| D | 0 | 34615 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7592 | 5708 | 75.184405% |
| B | 7592 | 1652 | 21.759747% |
| C | 7592 | 804 | 10.590095% |
| D | 7593 | 1829 | 24.087976% |
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 | 7591 | 7591 | 5529 | 5529 | 72.84% | 72.84% |  |
| B | 7592 | 7592 | 1243 | 1243 | 16.37% | 16.37% |  |
| C | 7592 | 7592 | 620 | 620 | 8.17% | 8.17% |  |
| D | 7593 | 7593 | 1729 | 1729 | 22.77% | 22.77% |  |
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 | 9 | 191 | 13728178 | 149164.82 | 360 | 351 | 92.0 |
| A | 15 | 174 | 208763 | 2264.58 | 360 | 351 | 92.0 |
| A | 0 | 8 | 207027 | 2245.72 | 360 | 351 | 92.0 |
| B | 8 | 3 | 4039431 | 25996.44 | 738 | 713 | 155.4 |
| B | 4 | 81 | 779059 | 5010.06 | 738 | 713 | 155.4 |
| B | 8 | 128 | 93714 | 598.63 | 738 | 713 | 155.4 |
| C | 15 | 224 | 1355803 | 6515.43 | 752 | 745 | 208.0 |
| C | 13 | 3 | 483597 | 2321.66 | 752 | 745 | 208.0 |
| C | 2 | 12 | 207219 | 992.77 | 752 | 745 | 208.0 |
| D | 8 | 176 | 3544866 | 16680.64 | 718 | 684 | 212.5 |
| D | 12 | 17 | 1416329 | 6662.71 | 718 | 684 | 212.5 |
| D | 2 | 37 | 353490 | 1660.48 | 718 | 684 | 212.5 |
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 |  |