Observation information
- date-obs: 2025-05-07
- time-obs: 22:33:44.541400000
- date-end: 2025-05-08
- time-end: 00:56:16.507600000
- obs_id: C09_011T06_9000006468
- exposure: 5298.9105438
- 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_51976cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51976cztM0_level2_quad_clean.evt
|
Size (bytes) | 737,743,680 | 92,741,760 |
Size | 703.6 MB
| 88.4 MB
|
Events in quadrant A | 5,112,109 | 612,955 |
Events in quadrant B | 4,857,204 | 686,040 |
Events in quadrant C | 9,187,476 | 487,665 |
Events in quadrant D | 7,619,224 | 540,468 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20118 | 2 |
B | 0 | 19212 | 2 |
C | 0 | 32161 | 2 |
D | 0 | 27436 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6891 | 456 | 6.617327% |
B | 6891 | 305 | 4.426063% |
C | 6891 | 1950 | 28.297780% |
D | 6891 | 795 | 11.536787% |
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 | 7956 | 6893 | 364 | 364 | 4.58% | 5.28% |  |
B | 7956 | 6893 | 204 | 204 | 2.56% | 2.96% |  |
C | 7956 | 6893 | 1570 | 1570 | 19.73% | 22.78% |  |
D | 7956 | 6893 | 812 | 812 | 10.21% | 11.78% |  |
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 | 64 | 1499023 | 8781.12 | 683 | 666 | 170.6 |
A | 8 | 249 | 186483 | 1088.98 | 683 | 666 | 170.6 |
A | 4 | 30 | 91396 | 531.72 | 683 | 666 | 170.6 |
B | 8 | 128 | 1011829 | 6869.66 | 696 | 671 | 147.2 |
B | 10 | 247 | 124873 | 843.81 | 696 | 671 | 147.2 |
B | 10 | 44 | 113976 | 769.78 | 696 | 671 | 147.2 |
C | 15 | 224 | 5414243 | 32111.28 | 608 | 603 | 168.6 |
C | 4 | 5 | 670947 | 3976.18 | 608 | 603 | 168.6 |
C | 13 | 3 | 318475 | 1885.47 | 608 | 603 | 168.6 |
D | 2 | 172 | 1529892 | 8047.61 | 658 | 630 | 190.0 |
D | 6 | 42 | 1481955 | 7795.35 | 658 | 630 | 190.0 |
D | 8 | 176 | 346928 | 1822.36 | 658 | 630 | 190.0 |
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 |  |