Observation information
- date-obs: 2025-08-07
- time-obs: 11:25:06.272200000
- date-end: 2025-08-07
- time-end: 13:41:13.252200000
- obs_id: C09_011T08_9000006492
- exposure: 5873.5571658
- 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_9000006492_53335cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006492_53335cztM0_level2_quad_clean.evt
|
| Size (bytes) | 618,232,320 | 98,850,240 |
| Size | 589.6 MB
| 94.3 MB
|
| Events in quadrant A | 5,070,478 | 653,457 |
| Events in quadrant B | 4,123,622 | 713,653 |
| Events in quadrant C | 8,894,591 | 533,048 |
| Events in quadrant D | 4,252,424 | 603,725 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19802 | 2 |
| B | 0 | 17068 | 2 |
| C | 0 | 31354 | 2 |
| D | 0 | 17369 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7020 | 322 | 4.586895% |
| B | 7020 | 173 | 2.464387% |
| C | 7020 | 1447 | 20.612536% |
| D | 7020 | 116 | 1.652422% |
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 | 7915 | 7021 | 275 | 275 | 3.47% | 3.92% |  |
| B | 7915 | 7021 | 87 | 87 | 1.10% | 1.24% |  |
| C | 7915 | 7021 | 1257 | 1257 | 15.88% | 17.90% |  |
| D | 7915 | 7021 | 72 | 72 | 0.91% | 1.03% |  |
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 | 15 | 174 | 732171 | 3927.05 | 747 | 726 | 186.3 |
| A | 12 | 115 | 523528 | 2806.87 | 747 | 726 | 186.3 |
| A | 0 | 8 | 308967 | 1654.91 | 747 | 726 | 186.3 |
| B | 1 | 255 | 182126 | 1149.82 | 740 | 715 | 157.8 |
| B | 4 | 81 | 177174 | 1118.43 | 740 | 715 | 157.8 |
| B | 10 | 28 | 121266 | 764.08 | 740 | 715 | 157.8 |
| C | 15 | 224 | 2814955 | 15023.46 | 674 | 668 | 187.3 |
| C | 1 | 241 | 1168514 | 6234.29 | 674 | 668 | 187.3 |
| C | 15 | 158 | 955698 | 5098.22 | 674 | 668 | 187.3 |
| D | 2 | 62 | 350049 | 1661.24 | 730 | 698 | 210.3 |
| D | 1 | 3 | 179905 | 852.17 | 730 | 698 | 210.3 |
| D | 2 | 249 | 139029 | 657.79 | 730 | 698 | 210.3 |
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 |  |