Observation information
- date-obs: 2025-05-02
- time-obs: 19:32:46.560100000
- date-end: 2025-05-02
- time-end: 21:40:19.542000000
- obs_id: C09_011T05_9000006466
- exposure: 3255.75029349
- 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_011T05_9000006466_51900cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51900cztM0_level2_quad_clean.evt
|
| Size (bytes) | 735,799,680 | 86,365,440 |
| Size | 701.7 MB
| 82.4 MB
|
| Events in quadrant A | 5,365,829 | 592,510 |
| Events in quadrant B | 3,850,124 | 679,087 |
| Events in quadrant C | 4,849,633 | 595,834 |
| Events in quadrant D | 12,665,807 | 292,067 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20574 | 2 |
| B | 0 | 15978 | 8 |
| C | 0 | 18880 | 2 |
| D | 0 | 42145 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6528 | 456 | 6.985294% |
| B | 6528 | 127 | 1.945466% |
| C | 6528 | 341 | 5.223652% |
| D | 6528 | 3582 | 54.871324% |
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 | 7653 | 6529 | 374 | 374 | 4.89% | 5.73% |  |
| B | 7653 | 6529 | 57 | 57 | 0.74% | 0.87% |  |
| C | 7653 | 6529 | 242 | 242 | 3.16% | 3.71% |  |
| D | 7653 | 6529 | 3359 | 3359 | 43.89% | 51.45% |  |
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 | 1206206 | 7408.28 | 660 | 644 | 162.7 |
| A | 12 | 3 | 543259 | 3334.42 | 660 | 644 | 162.7 |
| A | 4 | 3 | 173983 | 1065.18 | 660 | 644 | 162.7 |
| B | 4 | 171 | 357099 | 2447.16 | 686 | 663 | 145.7 |
| B | 10 | 254 | 184305 | 1260.82 | 686 | 663 | 145.7 |
| B | 5 | 172 | 86003 | 585.91 | 686 | 663 | 145.7 |
| C | 14 | 245 | 657562 | 3525.14 | 670 | 663 | 186.3 |
| C | 10 | 171 | 389051 | 2084.22 | 670 | 663 | 186.3 |
| C | 15 | 248 | 264336 | 1414.96 | 670 | 663 | 186.3 |
| D | 6 | 42 | 8121824 | 50600.31 | 501 | 481 | 160.5 |
| D | 12 | 17 | 1008610 | 6281.18 | 501 | 481 | 160.5 |
| D | 3 | 12 | 466497 | 2903.53 | 501 | 481 | 160.5 |
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 |  |