Observation information
- date-obs: 2025-05-18
- time-obs: 17:26:47.388400000
- date-end: 2025-05-18
- time-end: 19:25:18.372900000
- obs_id: C09_011T07_9000006470
- exposure: 83.4632368088
- 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_52136cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52136cztM0_level2_quad_clean.evt
|
| Size (bytes) | 923,558,400 | 61,686,720 |
| Size | 880.8 MB
| 58.8 MB
|
| Events in quadrant A | 3,043,559 | 578,700 |
| Events in quadrant B | 6,734,294 | 469,528 |
| Events in quadrant C | 8,646,968 | 387,603 |
| Events in quadrant D | 15,291,707 | 7,322 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13234 | 1 |
| B | 0 | 24214 | 7 |
| C | 0 | 29921 | 5 |
| D | 0 | 49591 | 24 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6076 | 37 | 0.608953% |
| B | 6076 | 1574 | 25.905201% |
| C | 6076 | 2192 | 36.076366% |
| D | 6073 | 6016 | 99.061419% |
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 | 7111 | 6077 | 20 | 20 | 0.28% | 0.33% |  |
| B | 7112 | 6077 | 1281 | 1281 | 18.01% | 21.08% |  |
| C | 7110 | 6075 | 1770 | 1770 | 24.89% | 29.14% |  |
| D | 7109 | 6072 | 5670 | 5670 | 79.76% | 93.38% |  |
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 | 3 | 144267 | 902.54 | 631 | 616 | 159.2 |
| A | 14 | 254 | 119726 | 748.36 | 631 | 616 | 159.2 |
| A | 3 | 114 | 63417 | 394.57 | 631 | 616 | 159.2 |
| B | 4 | 81 | 3186162 | 28386.06 | 536 | 516 | 112.2 |
| B | 5 | 185 | 301831 | 2684.9 | 536 | 516 | 112.2 |
| B | 12 | 32 | 274862 | 2444.59 | 536 | 516 | 112.2 |
| C | 15 | 224 | 3762471 | 26298.71 | 513 | 509 | 143.0 |
| C | 15 | 193 | 1906143 | 13321.7 | 513 | 509 | 143.0 |
| C | 13 | 3 | 307204 | 2144.01 | 513 | 509 | 143.0 |
| D | 6 | 42 | 9508654 | 179701.65 | 179 | 170 | 52.9 |
| D | 15 | 94 | 3472403 | 65622.03 | 179 | 170 | 52.9 |
| D | 15 | 78 | 479490 | 9058.71 | 179 | 170 | 52.9 |
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 |  |