Observation information
- date-obs: 2025-06-19
- time-obs: 16:28:58.827700000
- date-end: 2025-06-19
- time-end: 18:23:47.812100000
- obs_id: C09_011T06_9000006478
- exposure: 1029.60573894
- 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_011T06_9000006478_52611cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52611cztM0_level2_quad_clean.evt
|
| Size (bytes) | 993,240,000 | 57,024,000 |
| Size | 947.2 MB
| 54.4 MB
|
| Events in quadrant A | 3,995,254 | 544,752 |
| Events in quadrant B | 13,892,944 | 107,760 |
| Events in quadrant C | 10,271,360 | 251,112 |
| Events in quadrant D | 8,156,399 | 413,997 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15876 | 1 |
| B | 0 | 45252 | 4 |
| C | 0 | 34624 | 1 |
| D | 0 | 28309 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5844 | 294 | 5.030801% |
| B | 5844 | 4986 | 85.318275% |
| C | 5844 | 3161 | 54.089665% |
| D | 5844 | 1321 | 22.604381% |
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 | 6889 | 5845 | 257 | 257 | 3.73% | 4.40% |  |
| B | 6889 | 5845 | 4227 | 4227 | 61.36% | 72.32% |  |
| C | 6888 | 5844 | 2634 | 2634 | 38.24% | 45.07% |  |
| D | 6889 | 5845 | 1238 | 1238 | 17.97% | 21.18% |  |
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 | 842874 | 5587.42 | 602 | 589 | 150.7 |
| A | 12 | 80 | 175763 | 1162.04 | 602 | 589 | 150.7 |
| A | 3 | 14 | 135260 | 893.36 | 602 | 589 | 150.7 |
| B | 10 | 128 | 10918403 | 175081.43 | 290 | 282 | 62.4 |
| B | 10 | 254 | 1044657 | 16747.45 | 290 | 282 | 62.4 |
| B | 15 | 219 | 191008 | 3058.45 | 290 | 282 | 62.4 |
| C | 15 | 248 | 8039479 | 79597.09 | 356 | 352 | 101.0 |
| C | 12 | 252 | 346146 | 3423.78 | 356 | 352 | 101.0 |
| C | 12 | 2 | 114734 | 1132.52 | 356 | 352 | 101.0 |
| D | 6 | 42 | 1981344 | 12736.65 | 539 | 514 | 155.5 |
| D | 8 | 176 | 1041988 | 6696.63 | 539 | 514 | 155.5 |
| D | 2 | 37 | 755127 | 4852.13 | 539 | 514 | 155.5 |
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 |  |