Observation information
- date-obs: 2025-05-23
- time-obs: 18:53:39.395500000
- date-end: 2025-05-23
- time-end: 20:54:01.379400000
- obs_id: C09_011T08_9000006472
- exposure: 1151.85794657
- 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_9000006472_52211cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52211cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,067,783,040 | 77,999,040 |
| Size | 1018.3 MB
| 74.4 MB
|
| Events in quadrant A | 4,883,391 | 651,622 |
| Events in quadrant B | 7,285,709 | 663,897 |
| Events in quadrant C | 9,913,511 | 442,373 |
| Events in quadrant D | 16,885,083 | 100,010 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19618 | 0 |
| B | 0 | 26692 | 0 |
| C | 0 | 34471 | 6 |
| D | 0 | 55101 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7223 | 361 | 4.997923% |
| B | 7223 | 860 | 11.906410% |
| C | 7222 | 2602 | 36.028801% |
| D | 7222 | 6232 | 86.291886% |
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 | 7223 | 7223 | 266 | 266 | 3.68% | 3.68% |  |
| B | 7223 | 7223 | 648 | 648 | 8.97% | 8.97% |  |
| C | 7221 | 7221 | 1893 | 1893 | 26.22% | 26.22% |  |
| D | 7222 | 7222 | 5841 | 5841 | 80.88% | 80.88% |  |
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 | 14 | 254 | 1323910 | 7001.0 | 748 | 728 | 189.0 |
| A | 12 | 3 | 120838 | 635.51 | 748 | 728 | 189.0 |
| A | 3 | 145 | 73734 | 386.28 | 748 | 728 | 189.0 |
| B | 5 | 32 | 2000086 | 13008.2 | 726 | 700 | 153.7 |
| B | 10 | 254 | 1553382 | 10101.9 | 726 | 700 | 153.7 |
| B | 4 | 81 | 126165 | 816.28 | 726 | 700 | 153.7 |
| C | 15 | 224 | 4306173 | 25626.21 | 599 | 593 | 168.0 |
| C | 15 | 231 | 1616329 | 9616.63 | 599 | 593 | 168.0 |
| C | 13 | 3 | 640378 | 3807.91 | 599 | 593 | 168.0 |
| D | 6 | 42 | 11601959 | 120471.79 | 333 | 317 | 96.3 |
| D | 15 | 93 | 1543414 | 16023.56 | 333 | 317 | 96.3 |
| D | 7 | 222 | 667208 | 6925.02 | 333 | 317 | 96.3 |
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 |  |