Observation information
- date-obs: 2017-07-13
- time-obs: 18:00:06.659400000
- date-end: 2017-07-14
- time-end: 09:48:21.670500000
- obs_id: A03_068T01_9000001380
- exposure: 24015.0529814
- sourceid: 4U 1957+11
- observer: devraj
- ra_pnt: 299.8505
- dec_pnt: 11.70893
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_068T01_9000001380cztM0_level2.evt
| modeM0/AS1A03_068T01_9000001380cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,050,308,800 | 512,640,000 |
Size | 2.8 GB
| 488.9 MB
|
Events in quadrant A | 21,268,589 | 3,168,135 |
Events in quadrant B | 21,190,082 | 3,232,216 |
Events in quadrant C | 22,153,156 | 3,088,329 |
Events in quadrant D | 24,766,392 | 2,988,031 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 91883 | 0 |
B | 0 | 91489 | 0 |
C | 0 | 95974 | 0 |
D | 0 | 102737 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 75 | 0 |
B | 0 | 77 | 0 |
C | 0 | 80 | 0 |
D | 0 | 78 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 932 | 0 |
B | 0 | 934 | 0 |
C | 0 | 932 | 0 |
D | 0 | 912 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 44456 | 449 | 1.009987% |
B | 44432 | 559 | 1.258102% |
C | 44479 | 806 | 1.812091% |
D | 44037 | 1034 | 2.348026% |
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 | 56896 | 45105 | 0 | 0 | 0.00% | 0.00% |  |
B | 56896 | 45080 | 5 | 5 | 0.01% | 0.01% |  |
C | 56896 | 45123 | 323 | 323 | 0.57% | 0.72% |  |
D | 56896 | 44550 | 639 | 639 | 1.12% | 1.43% |  |
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 | 1 | 162 | 185861 | 164.92 | 5438 | 5331 | 1094.7 |
A | 1 | 178 | 70723 | 59.74 | 5438 | 5331 | 1094.7 |
A | 1 | 161 | 60698 | 50.58 | 5438 | 5331 | 1094.7 |
B | 12 | 111 | 122795 | 113.85 | 5434 | 5306 | 1031.9 |
B | 11 | 111 | 100335 | 92.09 | 5434 | 5306 | 1031.9 |
B | 14 | 111 | 80313 | 72.69 | 5434 | 5306 | 1031.9 |
C | 14 | 234 | 1604357 | 1323.71 | 5236 | 5265 | 1208.0 |
C | 9 | 68 | 111500 | 87.94 | 5236 | 5265 | 1208.0 |
C | 13 | 61 | 38835 | 27.79 | 5236 | 5265 | 1208.0 |
D | 1 | 52 | 2885697 | 2227.77 | 5138 | 5024 | 1293.1 |
D | 8 | 195 | 1528711 | 1178.34 | 5138 | 5024 | 1293.1 |
D | 12 | 233 | 422937 | 323.19 | 5138 | 5024 | 1293.1 |
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 |  |