Observation information
- date-obs: 2017-09-17
- time-obs: 09:16:34.554900000
- date-end: 2017-09-19
- time-end: 23:32:19.533000000
- obs_id: A03_097T01_9000001540
- exposure: 119699.684384
- sourceid: Cygnus X-1
- observer: aarthy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_097T01_9000001540cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540cztM0_level2_quad_clean.evt
|
Size (bytes) | 16,702,473,600 | 2,447,006,400 |
Size | 15.6 GB
| 2.3 GB
|
Events in quadrant A | 120,244,520 | 15,141,774 |
Events in quadrant B | 131,760,406 | 15,635,442 |
Events in quadrant C | 91,603,548 | 15,778,050 |
Events in quadrant D | 149,271,837 | 14,359,932 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3920 | 0 |
B | 0 | 3920 | 0 |
C | 0 | 3920 | 0 |
D | 0 | 3918 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 317 | 0 |
B | 0 | 317 | 0 |
C | 0 | 317 | 0 |
D | 0 | 317 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 488437 | 0 |
B | 0 | 518798 | 0 |
C | 0 | 406757 | 0 |
D | 0 | 572628 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 192635 | 13871 | 7.200664% |
B | 192640 | 11816 | 6.133721% |
C | 192647 | 2399 | 1.245283% |
D | 192645 | 12095 | 6.278388% |
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 | 223797 | 192664 | 11201 | 11201 | 5.00% | 5.81% |  |
B | 223797 | 192680 | 6377 | 6377 | 2.85% | 3.31% |  |
C | 223797 | 192687 | 656 | 656 | 0.29% | 0.34% |  |
D | 223797 | 192675 | 9445 | 9445 | 4.22% | 4.90% |  |
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 | 239 | 32416279 | 7404.2 | 21886 | 21438 | 4375.2 |
A | 15 | 174 | 807674 | 179.7 | 21886 | 21438 | 4375.2 |
A | 4 | 2 | 795414 | 176.9 | 21886 | 21438 | 4375.2 |
B | 4 | 239 | 31591117 | 7506.13 | 22532 | 22006 | 4205.8 |
B | 0 | 85 | 5224575 | 1237.01 | 22532 | 22006 | 4205.8 |
B | 4 | 81 | 2512650 | 592.2 | 22532 | 22006 | 4205.8 |
C | 4 | 254 | 3876938 | 752.25 | 22268 | 22401 | 5124.0 |
C | 14 | 234 | 373101 | 68.44 | 22268 | 22401 | 5124.0 |
C | 4 | 175 | 299094 | 54.0 | 22268 | 22401 | 5124.0 |
D | 10 | 199 | 15140289 | 2921.02 | 21626 | 21048 | 5176.0 |
D | 2 | 16 | 12310137 | 2374.24 | 21626 | 21048 | 5176.0 |
D | 8 | 195 | 11075342 | 2135.68 | 21626 | 21048 | 5176.0 |
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 |  |