Observation information
- date-obs: 2017-11-18
- time-obs: 16:36:26.834700000
- date-end: 2017-11-19
- time-end: 06:55:23.838300000
- obs_id: G08_031T01_9000001702
- exposure: 25835.9550123
- sourceid: NGC 253
- observer: askpati
- ra_pnt: 11.8875
- dec_pnt: -25.28833
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_031T01_9000001702cztM0_level2_bc.evt
| modeM0/AS1G08_031T01_9000001702cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,870,413,120 | 520,099,200 |
Size | 1.7 GB
| 496.0 MB
|
Events in quadrant A | 14,105,170 | 3,194,578 |
Events in quadrant B | 13,968,773 | 3,197,145 |
Events in quadrant C | 8,779,012 | 3,222,766 |
Events in quadrant D | 16,647,165 | 2,970,467 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 944 | 0 |
B | 0 | 944 | 0 |
C | 0 | 944 | 0 |
D | 0 | 944 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 53 | 0 |
B | 0 | 53 | 0 |
C | 0 | 53 | 0 |
D | 0 | 53 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 119446 | 0 |
B | 0 | 114822 | 0 |
C | 0 | 94070 | 0 |
D | 0 | 121535 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 46118 | 1617 | 3.506223% |
B | 46118 | 1958 | 4.245631% |
C | 46118 | 176 | 0.381630% |
D | 46118 | 2751 | 5.965133% |
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 | 51539 | 46120 | 17 | 17 | 0.03% | 0.04% |  |
B | 51539 | 46120 | 43 | 43 | 0.08% | 0.09% |  |
C | 51539 | 46121 | 1 | 1 | 0.00% | 0.00% |  |
D | 51539 | 46118 | 819 | 819 | 1.59% | 1.78% |  |
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 | 8 | 5 | 4629631 | 9491.83 | 2240 | 2193 | 487.5 |
A | 1 | 162 | 499723 | 1020.54 | 2240 | 2193 | 487.5 |
A | 1 | 178 | 73159 | 145.57 | 2240 | 2193 | 487.5 |
B | 4 | 239 | 3155885 | 7323.02 | 2264 | 2198 | 430.7 |
B | 3 | 64 | 1035811 | 2400.1 | 2264 | 2198 | 430.7 |
B | 11 | 51 | 315471 | 727.44 | 2264 | 2198 | 430.7 |
C | 9 | 54 | 47294 | 92.37 | 2227 | 2187 | 488.3 |
C | 13 | 61 | 13204 | 22.56 | 2227 | 2187 | 488.3 |
C | 12 | 4 | 12445 | 21.01 | 2227 | 2187 | 488.3 |
D | 1 | 52 | 6374467 | 12385.21 | 2172 | 2091 | 514.5 |
D | 8 | 195 | 315070 | 608.3 | 2172 | 2091 | 514.5 |
D | 10 | 199 | 291151 | 561.81 | 2172 | 2091 | 514.5 |
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 |  |