Observation information
- date-obs: 2025-05-19
- time-obs: 14:16:19.224200000
- date-end: 2025-05-19
- time-end: 16:16:43.202800000
- obs_id: C09_011T07_9000006470
- exposure: 933.483935535
- 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_52149cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52149cztM0_level2_quad_clean.evt
|
| Size (bytes) | 946,451,520 | 65,782,080 |
| Size | 902.6 MB
| 62.7 MB
|
| Events in quadrant A | 4,124,682 | 560,944 |
| Events in quadrant B | 7,375,851 | 550,358 |
| Events in quadrant C | 8,906,453 | 371,601 |
| Events in quadrant D | 14,160,107 | 86,168 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16374 | 1 |
| B | 0 | 26199 | 1 |
| C | 0 | 30620 | 1 |
| D | 0 | 46086 | 5 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6049 | 457 | 7.554968% |
| B | 6050 | 1159 | 19.157025% |
| C | 6050 | 2409 | 39.818182% |
| D | 6049 | 5280 | 87.287155% |
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 | 7224 | 6050 | 349 | 349 | 4.83% | 5.77% |  |
| B | 7225 | 6050 | 805 | 805 | 11.14% | 13.31% |  |
| C | 7224 | 6049 | 2135 | 2135 | 29.55% | 35.30% |  |
| D | 7223 | 6048 | 5106 | 5106 | 70.69% | 84.42% |  |
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 | 95 | 539800 | 3426.05 | 632 | 616 | 157.4 |
| A | 13 | 248 | 319910 | 2028.84 | 632 | 616 | 157.4 |
| A | 14 | 254 | 241051 | 1527.75 | 632 | 616 | 157.4 |
| B | 4 | 170 | 4046959 | 31399.1 | 611 | 590 | 128.9 |
| B | 10 | 254 | 163321 | 1262.76 | 611 | 590 | 128.9 |
| B | 1 | 255 | 107307 | 828.1 | 611 | 590 | 128.9 |
| C | 15 | 224 | 5605859 | 39942.05 | 501 | 496 | 140.3 |
| C | 15 | 248 | 336153 | 2391.79 | 501 | 496 | 140.3 |
| C | 1 | 45 | 203345 | 1445.44 | 501 | 496 | 140.3 |
| D | 6 | 42 | 10895785 | 110738.88 | 345 | 329 | 98.4 |
| D | 15 | 94 | 1261018 | 12813.35 | 345 | 329 | 98.4 |
| D | 2 | 37 | 117610 | 1192.02 | 345 | 329 | 98.4 |
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 |  |