Observation information
- date-obs: 2023-11-18
- time-obs: 07:51:11.752200000
- date-end: 2023-11-18
- time-end: 10:03:22.749100000
- obs_id: A13_037T01_9000005930
- exposure: 7522.62001503
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000005930_44015cztM0_level2.fits
| modeM0/AS1A13_037T01_9000005930_44015cztM0_level2_quad_clean.evt
|
Size (bytes) | 540,371,520 | 126,783,360 |
Size | 515.3 MB
| 120.9 MB
|
Events in quadrant A | 5,762,955 | 821,364 |
Events in quadrant B | 3,798,094 | 883,906 |
Events in quadrant C | 4,750,374 | 837,944 |
Events in quadrant D | 5,075,776 | 744,221 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 158 | 0 |
C | 0 | 158 | 0 |
D | 0 | 158 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22669 | 0 |
B | 0 | 16789 | 0 |
C | 0 | 19439 | 0 |
D | 0 | 20642 | 10 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7931 | 376 | 4.740890% |
B | 7932 | 99 | 1.248109% |
C | 7932 | 157 | 1.979324% |
D | 7929 | 290 | 3.657460% |
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 | 7931 | 7931 | 211 | 211 | 2.66% | 2.66% |  |
B | 7932 | 7932 | 7 | 7 | 0.09% | 0.09% |  |
C | 7932 | 7932 | 120 | 120 | 1.51% | 1.51% |  |
D | 7932 | 7930 | 155 | 155 | 1.95% | 1.95% |  |
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 | 10 | 83 | 1210553 | 6464.36 | 896 | 875 | 187.1 |
A | 14 | 238 | 1054742 | 5631.73 | 896 | 875 | 187.1 |
A | 15 | 222 | 17151 | 86.98 | 896 | 875 | 187.1 |
B | 0 | 213 | 99337 | 544.69 | 907 | 879 | 180.8 |
B | 15 | 36 | 31220 | 167.85 | 907 | 879 | 180.8 |
B | 0 | 245 | 30888 | 166.02 | 907 | 879 | 180.8 |
C | 15 | 1 | 497770 | 2373.34 | 884 | 889 | 209.4 |
C | 3 | 233 | 453976 | 2164.16 | 884 | 889 | 209.4 |
C | 14 | 254 | 224131 | 1066.31 | 884 | 889 | 209.4 |
D | 1 | 52 | 692280 | 3140.62 | 875 | 845 | 220.2 |
D | 2 | 120 | 241693 | 1093.97 | 875 | 845 | 220.2 |
D | 12 | 233 | 123864 | 558.77 | 875 | 845 | 220.2 |
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 |  |