Observation information
- date-obs: 2025-05-29
- time-obs: 08:32:51.310000000
- date-end: 2025-05-29
- time-end: 10:30:42.295000000
- obs_id: C09_011T05_9000006474
- exposure: 1606.66146135
- 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_011T05_9000006474_52294cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52294cztM0_level2_quad_clean.evt
|
| Size (bytes) | 816,569,280 | 71,017,920 |
| Size | 778.7 MB
| 67.7 MB
|
| Events in quadrant A | 3,557,393 | 613,972 |
| Events in quadrant B | 4,153,444 | 608,091 |
| Events in quadrant C | 12,176,995 | 159,644 |
| Events in quadrant D | 9,871,386 | 347,221 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14790 | 1 |
| B | 0 | 16417 | 1 |
| C | 0 | 40302 | 9 |
| D | 0 | 33489 | 1 |
| 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 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6032 | 178 | 2.950928% |
| B | 6032 | 467 | 7.742042% |
| C | 6031 | 4577 | 75.891229% |
| D | 6031 | 2505 | 41.535400% |
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 | 7072 | 6032 | 58 | 58 | 0.82% | 0.96% |  |
| B | 7072 | 6032 | 294 | 294 | 4.16% | 4.87% |  |
| C | 7070 | 6030 | 3702 | 3702 | 52.36% | 61.39% |  |
| D | 7071 | 6031 | 2290 | 2290 | 32.39% | 37.97% |  |
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 | 12 | 3 | 316011 | 1895.08 | 655 | 641 | 166.4 |
| A | 4 | 249 | 122379 | 731.53 | 655 | 641 | 166.4 |
| A | 13 | 248 | 103354 | 617.21 | 655 | 641 | 166.4 |
| B | 10 | 44 | 403074 | 3059.31 | 621 | 602 | 131.6 |
| B | 5 | 32 | 307326 | 2331.5 | 621 | 602 | 131.6 |
| B | 4 | 171 | 206791 | 1567.3 | 621 | 602 | 131.6 |
| C | 15 | 178 | 4052760 | 47001.24 | 303 | 300 | 86.2 |
| C | 0 | 161 | 3419614 | 39657.89 | 303 | 300 | 86.2 |
| C | 15 | 158 | 785050 | 9101.69 | 303 | 300 | 86.2 |
| D | 15 | 93 | 6321278 | 40285.2 | 536 | 513 | 156.9 |
| D | 8 | 176 | 519579 | 3308.25 | 536 | 513 | 156.9 |
| D | 7 | 96 | 152691 | 969.9 | 536 | 513 | 156.9 |
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 |  |