Observation information
- date-obs: 2025-05-28
- time-obs: 16:48:12.438400000
- date-end: 2025-05-28
- time-end: 18:54:25.422300000
- obs_id: C09_011T05_9000006474
- exposure: 44.6100078225
- 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_9000006474_52284cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52284cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,077,586,560 | 77,587,200 |
| Size | 1.0 GB
| 74.0 MB
|
| Events in quadrant A | 4,274,330 | 699,534 |
| Events in quadrant B | 7,408,701 | 703,990 |
| Events in quadrant C | 15,855,987 | 4,075 |
| Events in quadrant D | 11,763,237 | 414,274 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18028 | 2 |
| B | 0 | 27269 | 0 |
| C | 0 | 52281 | 0 |
| D | 0 | 40193 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7572 | 183 | 2.416799% |
| B | 7573 | 771 | 10.180906% |
| C | 7573 | 7539 | 99.551037% |
| D | 7573 | 2996 | 39.561600% |
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 | 7572 | 7572 | 124 | 124 | 1.64% | 1.64% |  |
| B | 7573 | 7573 | 460 | 460 | 6.07% | 6.07% |  |
| C | 7572 | 7572 | 4928 | 4928 | 65.08% | 65.08% |  |
| D | 7573 | 7573 | 2659 | 2659 | 35.11% | 35.11% |  |
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 | 4 | 249 | 384816 | 1965.34 | 787 | 767 | 195.4 |
| A | 7 | 206 | 254317 | 1297.52 | 787 | 767 | 195.4 |
| A | 5 | 240 | 69351 | 350.97 | 787 | 767 | 195.4 |
| B | 7 | 0 | 1695592 | 10439.08 | 765 | 738 | 162.4 |
| B | 4 | 81 | 840775 | 5174.02 | 765 | 738 | 162.4 |
| B | 0 | 213 | 380024 | 2336.13 | 765 | 738 | 162.4 |
| C | 15 | 178 | 6357293 | 152246.19 | 145 | 143 | 41.8 |
| C | 15 | 158 | 3504158 | 83916.99 | 145 | 143 | 41.8 |
| C | 0 | 161 | 2807943 | 67243.47 | 145 | 143 | 41.8 |
| D | 7 | 60 | 3084479 | 17893.15 | 599 | 572 | 172.4 |
| D | 12 | 18 | 1890218 | 10963.92 | 599 | 572 | 172.4 |
| D | 15 | 93 | 1507424 | 8742.91 | 599 | 572 | 172.4 |
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 |  |