Observation information
- date-obs: 2016-11-28
- time-obs: 07:04:38.973000000
- date-end: 2016-11-28
- time-end: 17:56:01.951500000
- obs_id: G06_028T01_9000000834
- exposure: 20818.9704459
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G06_028T01_9000000834cztM0_level2.evt
| modeM0/AS1G06_028T01_9000000834cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,812,498,560 | 460,630,080 |
Size | 2.6 GB
| 439.3 MB
|
Events in quadrant A | 15,962,624 | 3,039,491 |
Events in quadrant B | 19,712,785 | 3,014,774 |
Events in quadrant C | 16,112,546 | 2,963,073 |
Events in quadrant D | 31,210,138 | 2,709,621 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68796 | 0 |
B | 0 | 79781 | 0 |
C | 0 | 69710 | 0 |
D | 0 | 115289 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 69 | 0 |
B | 0 | 69 | 0 |
C | 0 | 69 | 0 |
D | 0 | 69 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 658 | 0 |
B | 0 | 658 | 0 |
C | 0 | 658 | 0 |
D | 0 | 658 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 32389 | 542 | 1.673408% |
B | 32389 | 1471 | 4.541665% |
C | 32389 | 455 | 1.404798% |
D | 32389 | 2510 | 7.749545% |
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 | 39084 | 32396 | 24 | 24 | 0.06% | 0.07% |  |
B | 39084 | 32396 | 743 | 743 | 1.90% | 2.29% |  |
C | 39084 | 32396 | 153 | 153 | 0.39% | 0.47% |  |
D | 39084 | 32396 | 1965 | 1965 | 5.03% | 6.07% |  |
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 | 13 | 251 | 318558 | 393.06 | 3969 | 3895 | 800.6 |
A | 8 | 15 | 156645 | 190.81 | 3969 | 3895 | 800.6 |
A | 14 | 111 | 83124 | 98.97 | 3969 | 3895 | 800.6 |
B | 3 | 64 | 3736114 | 5056.67 | 3934 | 3852 | 738.1 |
B | 4 | 81 | 575620 | 774.66 | 3934 | 3852 | 738.1 |
B | 15 | 204 | 149547 | 197.4 | 3934 | 3852 | 738.1 |
C | 4 | 254 | 1136591 | 1286.97 | 3820 | 3854 | 880.2 |
C | 9 | 16 | 70933 | 76.21 | 3820 | 3854 | 880.2 |
C | 13 | 61 | 29905 | 29.6 | 3820 | 3854 | 880.2 |
D | 12 | 221 | 9931940 | 10755.8 | 3767 | 3657 | 923.1 |
D | 12 | 220 | 4554707 | 4930.38 | 3767 | 3657 | 923.1 |
D | 2 | 63 | 753623 | 812.47 | 3767 | 3657 | 923.1 |
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 |  |