Observation information
- date-obs: 2025-05-23
- time-obs: 20:33:29.382600000
- date-end: 2025-05-23
- time-end: 22:40:30.366000000
- obs_id: C09_011T08_9000006472
- exposure: 2235.76625013
- 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_52212cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52212cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,184,702,400 | 80,352,000 |
| Size | 1.1 GB
| 76.6 MB
|
| Events in quadrant A | 6,659,850 | 656,095 |
| Events in quadrant B | 10,382,056 | 551,679 |
| Events in quadrant C | 9,611,702 | 496,473 |
| Events in quadrant D | 16,612,462 | 197,267 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25032 | 0 |
| B | 0 | 36118 | 0 |
| C | 0 | 33844 | 0 |
| D | 0 | 54623 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7621 | 794 | 10.418580% |
| B | 7622 | 2369 | 31.081081% |
| C | 7622 | 2339 | 30.687484% |
| D | 7622 | 5691 | 74.665442% |
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 | 7621 | 7621 | 707 | 707 | 9.28% | 9.28% |  |
| B | 7622 | 7622 | 1856 | 1856 | 24.35% | 24.35% |  |
| C | 7622 | 7622 | 1588 | 1588 | 20.83% | 20.83% |  |
| D | 7621 | 7621 | 5241 | 5241 | 68.77% | 68.77% |  |
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 | 2736126 | 14090.17 | 772 | 750 | 194.1 |
| A | 12 | 3 | 323276 | 1661.36 | 772 | 750 | 194.1 |
| A | 4 | 249 | 92650 | 473.39 | 772 | 750 | 194.1 |
| B | 10 | 254 | 2494830 | 17187.63 | 692 | 670 | 145.1 |
| B | 12 | 32 | 2310402 | 15916.71 | 692 | 670 | 145.1 |
| B | 5 | 32 | 1818914 | 12529.79 | 692 | 670 | 145.1 |
| C | 15 | 224 | 4871572 | 28099.75 | 623 | 619 | 173.3 |
| C | 15 | 231 | 955126 | 5506.4 | 623 | 619 | 173.3 |
| C | 13 | 3 | 552985 | 3186.51 | 623 | 619 | 173.3 |
| D | 6 | 42 | 8410076 | 60187.08 | 480 | 458 | 139.7 |
| D | 11 | 176 | 2220357 | 15887.67 | 480 | 458 | 139.7 |
| D | 15 | 93 | 1970917 | 14102.45 | 480 | 458 | 139.7 |
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 |  |