Observation information
- date-obs: 2017-11-19
- time-obs: 20:42:02.826000000
- date-end: 2017-11-20
- time-end: 18:41:27.770500000
- obs_id: C03_020T01_9000001706
- exposure: 42375.7120097
- sourceid: Crab
- observer: ramadevi
- ra_pnt: 335.4276
- dec_pnt: -7.9853
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C03_020T01_9000001706cztM0_level2_bc.evt
| modeM0/AS1C03_020T01_9000001706cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,532,510,080 | 851,618,880 |
Size | 3.3 GB
| 812.2 MB
|
Events in quadrant A | 40,134,159 | 5,042,321 |
Events in quadrant B | 26,213,875 | 5,381,523 |
Events in quadrant C | 13,423,687 | 5,514,879 |
Events in quadrant D | 22,583,185 | 5,190,602 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 266875 | 0 |
B | 0 | 193623 | 0 |
C | 0 | 140025 | 0 |
D | 0 | 178914 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 113 | 0 |
B | 0 | 113 | 0 |
C | 0 | 113 | 0 |
D | 0 | 113 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1382 | 0 |
B | 0 | 1382 | 0 |
C | 0 | 1382 | 0 |
D | 0 | 1382 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 67966 | 13537 | 19.917312% |
B | 67966 | 5091 | 7.490510% |
C | 67966 | 521 | 0.766560% |
D | 67966 | 3416 | 5.026042% |
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 | 79167 | 67966 | 1012 | 1012 | 1.28% | 1.49% |  |
B | 79167 | 67966 | 140 | 140 | 0.18% | 0.21% |  |
C | 79167 | 67968 | 0 | 0 | 0.00% | 0.00% |  |
D | 79167 | 67960 | 371 | 371 | 0.47% | 0.55% |  |
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 | 26406486 | 37643.89 | 3206 | 3146 | 701.4 |
A | 1 | 162 | 720205 | 1022.33 | 3206 | 3146 | 701.4 |
A | 1 | 178 | 108355 | 150.0 | 3206 | 3146 | 701.4 |
B | 4 | 239 | 7552281 | 11673.88 | 3441 | 3348 | 646.7 |
B | 10 | 16 | 2685535 | 4147.81 | 3441 | 3348 | 646.7 |
B | 3 | 64 | 708455 | 1090.4 | 3441 | 3348 | 646.7 |
C | 12 | 4 | 28318 | 33.61 | 3415 | 3368 | 742.4 |
C | 13 | 61 | 20493 | 23.07 | 3415 | 3368 | 742.4 |
C | 14 | 234 | 19995 | 22.4 | 3415 | 3368 | 742.4 |
D | 1 | 52 | 6281446 | 8064.75 | 3361 | 3235 | 778.5 |
D | 13 | 122 | 949160 | 1215.1 | 3361 | 3235 | 778.5 |
D | 13 | 104 | 559764 | 714.9 | 3361 | 3235 | 778.5 |
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 |  |