Observation information
- date-obs: 2025-05-06
- time-obs: 15:37:52.800700000
- date-end: 2025-05-06
- time-end: 17:39:19.783000000
- obs_id: C09_011T06_9000006468
- exposure: 4487.8861348
- 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_9000006468_51957cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51957cztM0_level2_quad_clean.evt
|
Size (bytes) | 835,948,800 | 76,006,080 |
Size | 797.2 MB
| 72.5 MB
|
Events in quadrant A | 8,554,035 | 442,393 |
Events in quadrant B | 4,465,055 | 588,642 |
Events in quadrant C | 8,706,257 | 420,721 |
Events in quadrant D | 8,735,152 | 412,455 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29772 | 1 |
B | 0 | 17687 | 1 |
C | 0 | 30209 | 1 |
D | 0 | 30318 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6257 | 1919 | 30.669650% |
B | 6257 | 560 | 8.949976% |
C | 6257 | 2070 | 33.082947% |
D | 6258 | 1675 | 26.765740% |
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 | 7287 | 6258 | 1400 | 1400 | 19.21% | 22.37% |  |
B | 7287 | 6258 | 372 | 372 | 5.10% | 5.94% |  |
C | 7287 | 6258 | 1601 | 1601 | 21.97% | 25.58% |  |
D | 7288 | 6259 | 1612 | 1612 | 22.12% | 25.75% |  |
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 | 7 | 174 | 3314465 | 23680.6 | 554 | 539 | 139.9 |
A | 7 | 64 | 1504812 | 10749.21 | 554 | 539 | 139.9 |
A | 12 | 3 | 235377 | 1678.1 | 554 | 539 | 139.9 |
B | 10 | 41 | 1177190 | 8768.04 | 628 | 607 | 134.2 |
B | 4 | 170 | 92320 | 683.46 | 628 | 607 | 134.2 |
B | 0 | 216 | 85850 | 635.24 | 628 | 607 | 134.2 |
C | 15 | 224 | 5348758 | 35314.0 | 542 | 534 | 151.4 |
C | 4 | 5 | 388619 | 2562.5 | 542 | 534 | 151.4 |
C | 13 | 3 | 299418 | 1973.51 | 542 | 534 | 151.4 |
D | 6 | 42 | 2043267 | 12704.74 | 562 | 536 | 160.8 |
D | 12 | 16 | 1675474 | 10417.26 | 562 | 536 | 160.8 |
D | 2 | 172 | 900002 | 5594.22 | 562 | 536 | 160.8 |
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 |  |