Observation information
- date-obs: 2016-07-24
- time-obs: 00:00:01.796400000
- date-end: 2016-07-24
- time-end: 05:09:48.795500000
- obs_id: G05_245T01_9000000554
- exposure: 7867.40124924
- sourceid: Cygnus X-1
- observer: anuj
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G05_245T01_9000000554cztM0_level2.evt
| modeM0/AS1G05_245T01_9000000554cztM0_level2_quad_clean.evt
|
Size (bytes) | 972,587,520 | 186,851,520 |
Size | 927.5 MB
| 178.2 MB
|
Events in quadrant A | 7,092,221 | 1,172,142 |
Events in quadrant B | 7,181,098 | 1,190,993 |
Events in quadrant C | 6,880,170 | 1,155,805 |
Events in quadrant D | 7,274,547 | 1,094,156 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34 | 0 |
B | 0 | 34 | 0 |
C | 0 | 34 | 0 |
D | 0 | 34 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31299 | 0 |
B | 0 | 31245 | 0 |
C | 0 | 30996 | 0 |
D | 0 | 32620 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 308 | 0 |
B | 0 | 308 | 0 |
C | 0 | 308 | 0 |
D | 0 | 308 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 15166 | 86 | 0.567058% |
B | 15166 | 93 | 0.613214% |
C | 15166 | 45 | 0.296716% |
D | 15166 | 152 | 1.002242% |
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 | 18588 | 15170 | 13 | 13 | 0.07% | 0.09% |  |
B | 18588 | 15170 | 1 | 1 | 0.01% | 0.01% |  |
C | 18588 | 15170 | 1 | 1 | 0.01% | 0.01% |  |
D | 18588 | 15170 | 103 | 103 | 0.55% | 0.68% |  |
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 | 13 | 68621 | 184.9 | 1801 | 1769 | 361.6 |
A | 0 | 50 | 43352 | 115.01 | 1801 | 1769 | 361.6 |
A | 8 | 15 | 41467 | 109.8 | 1801 | 1769 | 361.6 |
B | 14 | 167 | 87526 | 248.69 | 1821 | 1787 | 344.8 |
B | 12 | 111 | 31991 | 87.61 | 1821 | 1787 | 344.8 |
B | 15 | 204 | 27239 | 73.82 | 1821 | 1787 | 344.8 |
C | 9 | 16 | 48181 | 115.83 | 1745 | 1766 | 400.7 |
C | 9 | 247 | 16132 | 35.85 | 1745 | 1766 | 400.7 |
C | 13 | 61 | 14132 | 30.86 | 1745 | 1766 | 400.7 |
D | 2 | 63 | 266488 | 597.56 | 1710 | 1678 | 443.2 |
D | 2 | 31 | 159183 | 355.42 | 1710 | 1678 | 443.2 |
D | 8 | 112 | 82531 | 182.45 | 1710 | 1678 | 443.2 |
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 |  |