Observation information
- date-obs: 2018-04-27
- time-obs: 16:06:30.964400000
- date-end: 2018-04-29
- time-end: 02:13:23.935400000
- obs_id: A04_225T01_9000002062
- exposure: 73978.8562928
- sourceid: 4U 1702-429
- observer: navinsridhar
- ra_pnt: 256.5638
- dec_pnt: -43.03575
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_225T01_9000002062cztM0_level2_bc.evt
| modeM0/AS1A04_225T01_9000002062cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,007,603,520 | 1,520,256,960 |
Size | 3.7 GB
| 1.4 GB
|
Events in quadrant A | 24,629,685 | 9,772,709 |
Events in quadrant B | 24,675,254 | 10,132,325 |
Events in quadrant C | 23,606,981 | 9,798,314 |
Events in quadrant D | 41,340,570 | 9,180,147 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2130 | 0 |
B | 0 | 2130 | 0 |
C | 0 | 2130 | 0 |
D | 0 | 2130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 227749 | 0 |
B | 0 | 226561 | 0 |
C | 0 | 217744 | 0 |
D | 0 | 279693 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 181 | 0 |
B | 0 | 181 | 0 |
C | 0 | 181 | 0 |
D | 0 | 181 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 104554 | 2169 | 2.074526% |
B | 104554 | 1845 | 1.764638% |
C | 104554 | 948 | 0.906708% |
D | 104554 | 3816 | 3.649789% |
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 | 122815 | 104559 | 154 | 154 | 0.13% | 0.15% |  |
B | 122815 | 104556 | 47 | 47 | 0.04% | 0.04% |  |
C | 122815 | 104560 | 2 | 2 | 0.00% | 0.00% |  |
D | 122815 | 104557 | 428 | 428 | 0.35% | 0.41% |  |
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 | 111 | 2691754 | 2261.0 | 5456 | 5355 | 1188.1 |
A | 8 | 15 | 239433 | 197.01 | 5456 | 5355 | 1188.1 |
A | 15 | 222 | 229530 | 188.68 | 5456 | 5355 | 1188.1 |
B | 0 | 189 | 539943 | 505.63 | 5604 | 5456 | 1057.1 |
B | 4 | 80 | 425120 | 397.01 | 5604 | 5456 | 1057.1 |
B | 3 | 209 | 399915 | 373.16 | 5604 | 5456 | 1057.1 |
C | 3 | 233 | 2264684 | 1889.13 | 5419 | 5373 | 1196.0 |
C | 12 | 4 | 55027 | 41.52 | 5419 | 5373 | 1196.0 |
C | 8 | 128 | 38059 | 27.33 | 5419 | 5373 | 1196.0 |
D | 13 | 122 | 8513285 | 6335.77 | 5274 | 5144 | 1342.9 |
D | 1 | 52 | 2630353 | 1954.92 | 5274 | 5144 | 1342.9 |
D | 10 | 157 | 2231166 | 1657.66 | 5274 | 5144 | 1342.9 |
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 |  |