Observation information
- date-obs: 2025-06-18
- time-obs: 00:08:36.138400000
- date-end: 2025-06-18
- time-end: 02:33:19.118900000
- obs_id: C09_011T06_9000006478
- exposure: 5792.50728691
- 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_52586cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52586cztM0_level2_quad_clean.evt
|
| Size (bytes) | 627,459,840 | 92,082,240 |
| Size | 598.4 MB
| 87.8 MB
|
| Events in quadrant A | 3,889,829 | 640,970 |
| Events in quadrant B | 6,037,367 | 594,828 |
| Events in quadrant C | 6,449,394 | 549,779 |
| Events in quadrant D | 6,313,616 | 520,996 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16963 | 2 |
| B | 0 | 22819 | 2 |
| C | 0 | 24000 | 6 |
| D | 0 | 23783 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6912 | 201 | 2.907986% |
| B | 6912 | 1107 | 16.015625% |
| C | 6911 | 970 | 14.035595% |
| D | 6911 | 860 | 12.443930% |
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 | 7927 | 6912 | 181 | 181 | 2.28% | 2.62% |  |
| B | 7927 | 6912 | 1018 | 1018 | 12.84% | 14.73% |  |
| C | 7926 | 6911 | 822 | 822 | 10.37% | 11.89% |  |
| D | 7926 | 6911 | 760 | 760 | 9.59% | 11.00% |  |
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 | 12 | 80 | 520102 | 2951.9 | 702 | 684 | 176.0 |
| A | 4 | 249 | 317653 | 1801.36 | 702 | 684 | 176.0 |
| A | 5 | 243 | 81652 | 460.15 | 702 | 684 | 176.0 |
| B | 10 | 44 | 2190966 | 16211.01 | 643 | 619 | 135.1 |
| B | 1 | 238 | 646854 | 4782.86 | 643 | 619 | 135.1 |
| B | 10 | 254 | 182540 | 1346.42 | 643 | 619 | 135.1 |
| C | 15 | 248 | 1909950 | 10602.97 | 645 | 637 | 180.1 |
| C | 13 | 3 | 751136 | 4167.74 | 645 | 637 | 180.1 |
| C | 15 | 178 | 345146 | 1913.16 | 645 | 637 | 180.1 |
| D | 15 | 125 | 2468579 | 13187.86 | 643 | 614 | 187.1 |
| D | 8 | 176 | 297911 | 1588.64 | 643 | 614 | 187.1 |
| D | 3 | 224 | 267904 | 1428.3 | 643 | 614 | 187.1 |
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 |  |