Observation information
- date-obs: 2015-10-11
- time-obs: 05:32:35.827700000
- date-end: 2015-10-12
- time-end: 04:55:58.700500000
- obs_id: P01_140T01_9000000018
- exposure: 40921.9580567
- 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_9000000018cztM0_level2_bc.evt
| modeM0/AS1P01_140T01_9000000018cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,109,919,680 | 667,039,680 |
Size | 2.0 GB
| 636.1 MB
|
Events in quadrant A | 14,338,373 | 4,029,164 |
Events in quadrant B | 14,344,123 | 4,037,857 |
Events in quadrant C | 11,631,306 | 4,033,647 |
Events in quadrant D | 19,365,200 | 3,856,459 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1266 | 0 |
B | 0 | 1266 | 0 |
C | 0 | 1268 | 0 |
D | 0 | 1266 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 214 | 0 |
B | 0 | 214 | 0 |
C | 0 | 214 | 0 |
D | 0 | 215 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 270547 | 0 |
B | 0 | 268057 | 0 |
C | 0 | 245475 | 0 |
D | 0 | 265675 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 61938 | 985 | 1.590300% |
B | 61900 | 1132 | 1.828756% |
C | 61817 | 44 | 0.071178% |
D | 61896 | 1181 | 1.908039% |
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 | 83684 | 61965 | 449 | 449 | 0.54% | 0.72% |  |
B | 83684 | 61930 | 631 | 631 | 0.75% | 1.02% |  |
C | 83684 | 61849 | 15 | 15 | 0.02% | 0.02% |  |
D | 83684 | 61925 | 685 | 685 | 0.82% | 1.11% |  |
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 | 66 | 2104755 | 3846.5 | 2626 | 2567 | 546.5 |
A | 0 | 6 | 436990 | 794.89 | 2626 | 2567 | 546.5 |
A | 13 | 145 | 425933 | 774.66 | 2626 | 2567 | 546.5 |
B | 0 | 247 | 2513026 | 5246.8 | 2677 | 2592 | 478.5 |
B | 8 | 5 | 486190 | 1010.72 | 2677 | 2592 | 478.5 |
B | 0 | 183 | 142915 | 293.27 | 2677 | 2592 | 478.5 |
C | 0 | 186 | 605345 | 1073.39 | 2624 | 2574 | 561.6 |
C | 1 | 192 | 141140 | 246.75 | 2624 | 2574 | 561.6 |
C | 1 | 1 | 85252 | 147.23 | 2624 | 2574 | 561.6 |
D | 1 | 4 | 1708565 | 2858.54 | 2597 | 2521 | 596.8 |
D | 12 | 249 | 1490726 | 2493.54 | 2597 | 2521 | 596.8 |
D | 14 | 23 | 671433 | 1120.79 | 2597 | 2521 | 596.8 |
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 |  |