Observation information
- date-obs: 2020-08-21
- time-obs: 23:32:55.328700000
- date-end: 2020-08-22
- time-end: 00:25:00.328100000
- obs_id: A09_120T02_9000003834
- exposure: 3006.24757753
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_120T02_9000003834cztM0_level2_bc.evt
| modeM0/AS1A09_120T02_9000003834cztM0_level2_quad_clean.evt
|
Size (bytes) | 170,654,400 | 63,449,280 |
Size | 162.7 MB
| 60.5 MB
|
Events in quadrant A | 668,452 | 441,145 |
Events in quadrant B | 683,874 | 446,959 |
Events in quadrant C | 738,933 | 426,847 |
Events in quadrant D | 2,856,256 | 383,729 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 64 | 0 |
B | 0 | 64 | 0 |
C | 0 | 64 | 0 |
D | 0 | 64 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6287 | 0 |
B | 0 | 6307 | 0 |
C | 0 | 6501 | 0 |
D | 0 | 13986 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3126 | 3 | 0.095969% |
B | 3126 | 4 | 0.127959% |
C | 3126 | 13 | 0.415867% |
D | 3126 | 509 | 16.282790% |
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 | 3126 | 3126 | 0 | 0 | 0.00% | 0.00% |  |
B | 3126 | 3126 | 0 | 0 | 0.00% | 0.00% |  |
C | 3126 | 3126 | 0 | 0 | 0.00% | 0.00% |  |
D | 3126 | 3126 | 164 | 164 | 5.25% | 5.25% |  |
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 | 13 | 254 | 4762 | 107.22 | 173 | 170 | 42.8 |
A | 0 | 226 | 1083 | 21.32 | 173 | 170 | 42.8 |
A | 12 | 194 | 1024 | 19.94 | 173 | 170 | 42.8 |
B | 0 | 219 | 9781 | 251.49 | 174 | 171 | 38.2 |
B | 0 | 229 | 7140 | 182.37 | 174 | 171 | 38.2 |
B | 3 | 112 | 2159 | 52.02 | 174 | 171 | 38.2 |
C | 3 | 233 | 94277 | 2142.65 | 166 | 166 | 43.9 |
C | 4 | 254 | 4102 | 89.61 | 166 | 166 | 43.9 |
C | 13 | 61 | 967 | 18.24 | 166 | 166 | 43.9 |
D | 1 | 52 | 1538213 | 37927.5 | 157 | 152 | 40.6 |
D | 7 | 80 | 533016 | 13140.04 | 157 | 152 | 40.6 |
D | 12 | 233 | 166485 | 4101.64 | 157 | 152 | 40.6 |
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 |  |