Observation information
- date-obs: 2016-10-18
- time-obs: 14:06:37.460200000
- date-end: 2016-10-18
- time-end: 16:17:57.460100000
- obs_id: A02_098T01_9000000736
- exposure: 5534.89331177
- sourceid: 4U 1820-30
- observer: jayashreeroy
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_098T01_9000000736_05721cztM0_level2.evt
| modeM0/AS1A02_098T01_9000000736_05721cztM0_level2_quad_clean.evt
|
Size (bytes) | 540,538,560 | 95,434,560 |
Size | 515.5 MB
| 91.0 MB
|
Events in quadrant A | 4,036,030 | 585,323 |
Events in quadrant B | 4,611,524 | 592,334 |
Events in quadrant C | 3,475,926 | 601,619 |
Events in quadrant D | 3,722,912 | 574,062 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 156 | 0 |
B | 0 | 156 | 0 |
C | 0 | 156 | 0 |
D | 0 | 156 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17383 | 20 |
B | 0 | 18806 | 35 |
C | 0 | 15986 | 20 |
D | 0 | 16594 | 15 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 1 | 251318637792 | 0 |
B | 1 | -1 | -1 |
C | 1 | -1 | -1 |
D | 1 | -1 | -1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7713 | 190 | 2.463374% |
B | 7708 | 123 | 1.595745% |
C | 7711 | 25 | 0.324212% |
D | 7714 | 33 | 0.427794% |
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 | 7799 | 7721 | 129 | 129 | 1.65% | 1.67% |  |
B | 7799 | 7720 | 27 | 27 | 0.35% | 0.35% |  |
C | 7799 | 7721 | 0 | 0 | 0.00% | 0.00% |  |
D | 7799 | 7721 | 8 | 8 | 0.10% | 0.10% |  |
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 | 0 | 50 | 479153 | 2555.74 | 910 | 887 | 187.1 |
A | 14 | 31 | 13384 | 66.78 | 910 | 887 | 187.1 |
A | 13 | 14 | 13166 | 65.62 | 910 | 887 | 187.1 |
B | 15 | 204 | 643205 | 3627.93 | 923 | 900 | 177.0 |
B | 0 | 214 | 126688 | 710.49 | 923 | 900 | 177.0 |
B | 4 | 48 | 69303 | 386.36 | 923 | 900 | 177.0 |
C | 9 | 16 | 8551 | 36.9 | 887 | 891 | 207.6 |
C | 13 | 61 | 7115 | 29.98 | 887 | 891 | 207.6 |
C | 8 | 222 | 4745 | 18.57 | 887 | 891 | 207.6 |
D | 2 | 152 | 127313 | 573.31 | 892 | 867 | 220.6 |
D | 8 | 195 | 57881 | 258.5 | 892 | 867 | 220.6 |
D | 0 | 11 | 38532 | 170.77 | 892 | 867 | 220.6 |
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 |  |