Observation information
- date-obs: 2025-05-16
- time-obs: 16:57:56.793700000
- date-end: 2025-05-16
- time-end: 18:49:42.778800000
- obs_id: C09_011T07_9000006470
- exposure: 20.2862744331
- 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_011T07_9000006470_52106cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52106cztM0_level2_quad_clean.evt
|
| Size (bytes) | 505,287,360 | 28,146,240 |
| Size | 481.9 MB
| 26.8 MB
|
| Events in quadrant A | 1,592,144 | 296,201 |
| Events in quadrant B | 3,950,172 | 213,676 |
| Events in quadrant C | 5,655,135 | 130,560 |
| Events in quadrant D | 7,278,164 | 1,904 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 65 | 1 |
| B | 0 | 64 | 1 |
| C | 0 | 68 | 4 |
| D | 0 | 65 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 14 | 2 |
| C | 0 | 12 | 0 |
| D | 0 | 15 | 3 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7155 | 543 |
| B | 0 | 14598 | 818 |
| C | 0 | 20166 | 1359 |
| D | 0 | 25776 | 2190 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2956 | 63 | 2.131258% |
| B | 2946 | 1025 | 34.792940% |
| C | 2932 | 1810 | 61.732606% |
| D | 2901 | 2887 | 99.517408% |
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 | 6703 | 2989 | 24 | 24 | 0.36% | 0.80% |  |
| B | 6703 | 2985 | 775 | 775 | 11.56% | 25.96% |  |
| C | 6704 | 2965 | 1347 | 1347 | 20.09% | 45.43% |  |
| D | 6703 | 2944 | 2652 | 2652 | 39.56% | 90.08% |  |
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 | 8 | 43 | 139229 | 1670.85 | 331 | 323 | 83.1 |
| A | 4 | 3 | 66103 | 791.24 | 331 | 323 | 83.1 |
| A | 0 | 8 | 18088 | 213.69 | 331 | 323 | 83.1 |
| B | 8 | 3 | 2243737 | 41898.92 | 248 | 240 | 53.5 |
| B | 4 | 171 | 190339 | 3550.24 | 248 | 240 | 53.5 |
| B | 10 | 44 | 130246 | 2427.96 | 248 | 240 | 53.5 |
| C | 15 | 224 | 2912179 | 45059.38 | 232 | 230 | 64.6 |
| C | 5 | 80 | 984254 | 15226.75 | 232 | 230 | 64.6 |
| C | 13 | 3 | 282894 | 4373.93 | 232 | 230 | 64.6 |
| D | 6 | 42 | 5569321 | 186271.28 | 99 | 94 | 29.9 |
| D | 15 | 94 | 934130 | 31240.26 | 99 | 94 | 29.9 |
| D | 11 | 176 | 97137 | 3245.75 | 99 | 94 | 29.9 |
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 |  |