Observation information
- date-obs: 2015-10-07
- time-obs: 04:44:49.417400000
- date-end: 2015-10-08
- time-end: 04:12:36.264900000
- obs_id: P01_140T01_9000000004
- exposure: 32475.557283
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_140T01_9000000004cztM0_level2_bc.evt
| modeM0/AS1P01_140T01_9000000004cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,695,093,120 | 507,859,200 |
Size | 1.6 GB
| 484.3 MB
|
Events in quadrant A | 9,023,779 | 3,137,214 |
Events in quadrant B | 10,681,901 | 3,169,615 |
Events in quadrant C | 9,864,415 | 3,103,508 |
Events in quadrant D | 18,715,342 | 2,899,614 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 196685 | 0 |
B | 0 | 197260 | 0 |
C | 0 | 183857 | 0 |
D | 0 | 226241 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 157 | 0 |
C | 0 | 158 | 0 |
D | 0 | 157 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 922 | 0 |
B | 0 | 914 | 0 |
C | 0 | 916 | 0 |
D | 0 | 918 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 44763 | 229 | 0.511583% |
B | 44726 | 123 | 0.275008% |
C | 44782 | 131 | 0.292528% |
D | 44689 | 2225 | 4.978854% |
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 | 83995 | 44940 | 60 | 60 | 0.07% | 0.13% |  |
B | 83995 | 44882 | 17 | 17 | 0.02% | 0.04% |  |
C | 83995 | 44957 | 63 | 63 | 0.08% | 0.14% |  |
D | 83995 | 44820 | 425 | 425 | 0.51% | 0.95% |  |
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 | 15 | 22 | 371045 | 942.78 | 1870 | 1826 | 391.6 |
A | 0 | 86 | 224330 | 568.15 | 1870 | 1826 | 391.6 |
A | 13 | 17 | 134842 | 339.65 | 1870 | 1826 | 391.6 |
B | 8 | 236 | 543806 | 1562.29 | 1922 | 1858 | 346.9 |
B | 2 | 2 | 334792 | 959.76 | 1922 | 1858 | 346.9 |
B | 10 | 199 | 227534 | 650.56 | 1922 | 1858 | 346.9 |
C | 3 | 32 | 1546494 | 3873.18 | 1860 | 1828 | 398.8 |
C | 0 | 186 | 148001 | 366.52 | 1860 | 1828 | 398.8 |
C | 0 | 203 | 117512 | 290.07 | 1860 | 1828 | 398.8 |
D | 0 | 243 | 2086056 | 4876.98 | 1831 | 1754 | 427.4 |
D | 13 | 69 | 1273839 | 2976.51 | 1831 | 1754 | 427.4 |
D | 14 | 53 | 487656 | 1136.94 | 1831 | 1754 | 427.4 |
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 |  |