Observation information
- date-obs: 2025-07-25
- time-obs: 09:37:16.775500000
- date-end: 2025-07-25
- time-end: 11:35:00.761100000
- obs_id: C09_011T07_9000006488
- exposure: 46.0043657422
- 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_011T07_9000006488_53141cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53141cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,116,224,640 | 69,258,240 |
| Size | 1.0 GB
| 66.0 MB
|
| Events in quadrant A | 17,817,435 | 4,262 |
| Events in quadrant B | 10,035,308 | 515,629 |
| Events in quadrant C | 8,919,914 | 496,340 |
| Events in quadrant D | 4,000,640 | 588,675 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 57722 | 0 |
| B | 0 | 34761 | 0 |
| C | 0 | 31424 | 0 |
| D | 0 | 17013 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7064 | 7032 | 99.546999% |
| B | 7064 | 2218 | 31.398641% |
| C | 7065 | 1705 | 24.133050% |
| D | 7065 | 119 | 1.684360% |
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 | 7063 | 7063 | 6125 | 6125 | 86.72% | 86.72% |  |
| B | 7064 | 7064 | 1634 | 1634 | 23.13% | 23.13% |  |
| C | 7065 | 7064 | 1431 | 1431 | 20.25% | 20.26% |  |
| D | 7065 | 7065 | 120 | 120 | 1.70% | 1.70% |  |
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 | 16368706 | 259183.64 | 244 | 238 | 63.2 |
| A | 0 | 8 | 321945 | 5094.01 | 244 | 238 | 63.2 |
| A | 12 | 80 | 48523 | 764.56 | 244 | 238 | 63.2 |
| B | 10 | 254 | 4642893 | 34403.85 | 627 | 604 | 134.9 |
| B | 2 | 249 | 2314689 | 17149.61 | 627 | 604 | 134.9 |
| B | 0 | 213 | 249876 | 1847.35 | 627 | 604 | 134.9 |
| C | 15 | 224 | 2104020 | 12200.51 | 627 | 622 | 172.4 |
| C | 15 | 157 | 2093723 | 12140.78 | 627 | 622 | 172.4 |
| C | 9 | 38 | 616452 | 3572.05 | 627 | 622 | 172.4 |
| D | 12 | 3 | 466258 | 2344.48 | 696 | 665 | 198.6 |
| D | 3 | 12 | 231996 | 1164.86 | 696 | 665 | 198.6 |
| D | 8 | 176 | 144049 | 722.0 | 696 | 665 | 198.6 |
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 |  |