Observation information
- date-obs: 2019-06-17
- time-obs: 00:44:49.834100000
- date-end: 2019-06-17
- time-end: 02:59:23.830900000
- obs_id: A05_180T01_9000002992
- exposure: 4621.36984421
- 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/AS1A05_180T01_9000002992_20099cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20099cztM0_level2_quad_clean.evt
|
Size (bytes) | 705,067,200 | 99,627,840 |
Size | 672.4 MB
| 95.0 MB
|
Events in quadrant A | 6,908,208 | 587,208 |
Events in quadrant B | 4,092,279 | 683,797 |
Events in quadrant C | 3,297,894 | 659,139 |
Events in quadrant D | 6,585,177 | 602,687 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25189 | 2 |
B | 0 | 16584 | 2 |
C | 0 | 14297 | 3 |
D | 0 | 24375 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6942 | 1512 | 21.780467% |
B | 6942 | 73 | 1.051570% |
C | 6941 | 70 | 1.008500% |
D | 6941 | 976 | 14.061374% |
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 | 7752 | 6943 | 952 | 952 | 12.28% | 13.71% |  |
B | 7752 | 6943 | 11 | 11 | 0.14% | 0.16% |  |
C | 7751 | 6942 | 0 | 0 | 0.00% | 0.00% |  |
D | 7751 | 6942 | 866 | 866 | 11.17% | 12.47% |  |
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 | 14 | 238 | 3510206 | 23511.85 | 739 | 725 | 149.3 |
A | 14 | 254 | 531158 | 3553.65 | 739 | 725 | 149.3 |
A | 14 | 237 | 10784 | 67.39 | 739 | 725 | 149.3 |
B | 10 | 245 | 704953 | 4355.78 | 837 | 817 | 161.7 |
B | 4 | 80 | 51378 | 312.77 | 837 | 817 | 161.7 |
B | 0 | 198 | 28125 | 168.93 | 837 | 817 | 161.7 |
C | 14 | 238 | 125270 | 654.46 | 807 | 814 | 190.2 |
C | 8 | 128 | 14186 | 70.32 | 807 | 814 | 190.2 |
C | 8 | 112 | 6210 | 28.38 | 807 | 814 | 190.2 |
D | 1 | 52 | 2992399 | 15663.9 | 782 | 759 | 191.0 |
D | 12 | 218 | 519995 | 2718.66 | 782 | 759 | 191.0 |
D | 2 | 184 | 46352 | 238.72 | 782 | 759 | 191.0 |
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 |  |