Observation information
- date-obs: 2024-12-15
- time-obs: 09:20:19.541200000
- date-end: 2024-12-15
- time-end: 11:16:45.519900000
- obs_id: A13_037T01_9000006440
- exposure: 7.25383681059
- 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_9000006440_49844cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49844cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,232,660,160 | 51,295,680 |
Size | 1.1 GB
| 48.9 MB
|
Events in quadrant A | 12,173,281 | 348,136 |
Events in quadrant B | 4,078,442 | 710,510 |
Events in quadrant C | 13,379,156 | 6,813 |
Events in quadrant D | 15,457,380 | 600 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41009 | 0 |
B | 0 | 17030 | 0 |
C | 0 | 44545 | 0 |
D | 0 | 50723 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6986 | 3443 | 49.284283% |
B | 6987 | 131 | 1.874911% |
C | 6987 | 6922 | 99.069701% |
D | 6987 | 6983 | 99.942751% |
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 | 6985 | 6985 | 3073 | 3073 | 43.99% | 43.99% |  |
B | 6987 | 6987 | 71 | 71 | 1.02% | 1.02% |  |
C | 6986 | 6986 | 2954 | 2954 | 42.28% | 42.28% |  |
D | 6986 | 6986 | 5439 | 5439 | 77.86% | 77.86% |  |
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 | 0 | 98 | 3707732 | 26241.17 | 558 | 544 | 141.3 |
A | 3 | 84 | 2952248 | 20893.51 | 558 | 544 | 141.3 |
A | 3 | 99 | 1182005 | 8362.92 | 558 | 544 | 141.3 |
B | 0 | 229 | 375578 | 2374.49 | 749 | 725 | 157.9 |
B | 4 | 206 | 226646 | 1431.08 | 749 | 725 | 157.9 |
B | 10 | 44 | 145642 | 917.97 | 749 | 725 | 157.9 |
C | 15 | 230 | 2452252 | 60877.72 | 126 | 124 | 40.3 |
C | 15 | 197 | 1781715 | 44230.64 | 126 | 124 | 40.3 |
C | 15 | 174 | 1712516 | 42512.67 | 126 | 124 | 40.3 |
D | 8 | 129 | 4869548 | 87703.62 | 164 | 156 | 55.5 |
D | 7 | 126 | 2128361 | 38331.54 | 164 | 156 | 55.5 |
D | 7 | 61 | 2100845 | 37835.94 | 164 | 156 | 55.5 |
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 |  |