Observation information
- date-obs: 2021-10-25
- time-obs: 02:08:45.620400000
- date-end: 2021-10-25
- time-end: 09:29:10.593100000
- obs_id: C06_010T05_9000004736
- exposure: 18257.7038698
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C06_010T05_9000004736cztM0_level2_bc.evt
| modeM0/AS1C06_010T05_9000004736cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,276,352,640 | 349,479,360 |
Size | 1.2 GB
| 333.3 MB
|
Events in quadrant A | 3,980,013 | 2,434,892 |
Events in quadrant B | 6,625,577 | 2,438,245 |
Events in quadrant C | 7,892,489 | 2,372,445 |
Events in quadrant D | 18,874,065 | 2,041,688 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 75 | 0 |
B | 0 | 75 | 0 |
C | 0 | 75 | 0 |
D | 0 | 75 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38090 | 0 |
B | 0 | 49630 | 0 |
C | 0 | 51160 | 0 |
D | 0 | 89047 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 388 | 0 |
B | 0 | 388 | 0 |
C | 0 | 388 | 0 |
D | 0 | 388 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18806 | 40 | 0.212698% |
B | 18806 | 1136 | 6.040625% |
C | 18806 | 470 | 2.499202% |
D | 18806 | 4303 | 22.880995% |
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 | 26426 | 18806 | 11 | 11 | 0.04% | 0.06% |  |
B | 26426 | 18806 | 52 | 52 | 0.20% | 0.28% |  |
C | 26426 | 18806 | 77 | 77 | 0.29% | 0.41% |  |
D | 26426 | 18807 | 1356 | 1356 | 5.13% | 7.21% |  |
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 | 9 | 143 | 103639 | 476.21 | 976 | 963 | 215.6 |
A | 13 | 254 | 36000 | 162.5 | 976 | 963 | 215.6 |
A | 13 | 6 | 25742 | 114.92 | 976 | 963 | 215.6 |
B | 5 | 172 | 1728568 | 8841.12 | 973 | 954 | 195.4 |
B | 0 | 197 | 225911 | 1151.22 | 973 | 954 | 195.4 |
B | 8 | 128 | 186022 | 947.09 | 973 | 954 | 195.4 |
C | 3 | 233 | 2858115 | 13277.79 | 941 | 938 | 215.2 |
C | 9 | 160 | 891696 | 4139.5 | 941 | 938 | 215.2 |
C | 0 | 10 | 242899 | 1124.43 | 941 | 938 | 215.2 |
D | 8 | 195 | 4506562 | 19926.12 | 863 | 842 | 226.1 |
D | 12 | 227 | 3510847 | 15522.66 | 863 | 842 | 226.1 |
D | 7 | 80 | 1765881 | 7805.72 | 863 | 842 | 226.1 |
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 |  |