Observation information
- date-obs: 2025-04-28
- time-obs: 08:02:01.525300000
- date-end: 2025-04-28
- time-end: 10:04:36.505400000
- obs_id: C09_011T05_9000006466
- exposure: 6106.42691416
- 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_9000006466_51833cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51833cztM0_level2_quad_clean.evt
|
Size (bytes) | 761,065,920 | 97,637,760 |
Size | 725.8 MB
| 93.1 MB
|
Events in quadrant A | 7,502,286 | 568,891 |
Events in quadrant B | 5,982,007 | 711,179 |
Events in quadrant C | 6,957,381 | 614,004 |
Events in quadrant D | 7,161,805 | 549,988 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27382 | 0 |
B | 0 | 22946 | 0 |
C | 0 | 25858 | 0 |
D | 0 | 26374 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7355 | 1328 | 18.055744% |
B | 7355 | 511 | 6.947655% |
C | 7355 | 696 | 9.462950% |
D | 7355 | 989 | 13.446635% |
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 | 7355 | 7355 | 1042 | 1042 | 14.17% | 14.17% |  |
B | 7355 | 7355 | 296 | 296 | 4.02% | 4.02% |  |
C | 7355 | 7355 | 604 | 604 | 8.21% | 8.21% |  |
D | 7355 | 7355 | 841 | 841 | 11.43% | 11.43% |  |
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 | 13 | 248 | 2610106 | 15110.47 | 707 | 691 | 172.7 |
A | 12 | 3 | 678722 | 3926.31 | 707 | 691 | 172.7 |
A | 11 | 3 | 529658 | 3063.11 | 707 | 691 | 172.7 |
B | 5 | 185 | 644791 | 4063.53 | 744 | 719 | 158.5 |
B | 4 | 206 | 472957 | 2979.41 | 744 | 719 | 158.5 |
B | 10 | 254 | 377616 | 2377.89 | 744 | 719 | 158.5 |
C | 15 | 192 | 1059422 | 5340.93 | 715 | 710 | 198.2 |
C | 0 | 192 | 837368 | 4220.73 | 715 | 710 | 198.2 |
C | 12 | 254 | 620938 | 3128.89 | 715 | 710 | 198.2 |
D | 11 | 129 | 2405907 | 12375.44 | 696 | 671 | 194.4 |
D | 12 | 6 | 659161 | 3388.07 | 696 | 671 | 194.4 |
D | 8 | 176 | 299003 | 1534.98 | 696 | 671 | 194.4 |
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 |  |