Observation information
- date-obs: 2020-09-26
- time-obs: 17:02:08.100500000
- date-end: 2020-09-30
- time-end: 06:54:59.946300000
- obs_id: A09_120T02_9000003904
- exposure: 164165.904051
- 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_9000003904cztM0_level2_bc.evt
| modeM0/AS1A09_120T02_9000003904cztM0_level2_quad_clean.evt
|
Size (bytes) | 14,314,654,080 | 3,836,240,640 |
Size | 13.3 GB
| 3.6 GB
|
Events in quadrant A | 124,168,035 | 23,048,930 |
Events in quadrant B | 121,190,330 | 25,711,259 |
Events in quadrant C | 58,714,767 | 25,408,137 |
Events in quadrant D | 111,587,539 | 24,026,094 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 421 | 0 |
B | 0 | 422 | 0 |
C | 0 | 422 | 0 |
D | 0 | 422 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5352 | 0 |
B | 0 | 5352 | 0 |
C | 0 | 5352 | 0 |
D | 0 | 5352 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 931640 | 0 |
B | 0 | 751936 | 0 |
C | 0 | 562126 | 0 |
D | 0 | 743745 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 262633 | 47194 | 17.969562% |
B | 262645 | 29171 | 11.106627% |
C | 262637 | 4834 | 1.840563% |
D | 262650 | 18175 | 6.919855% |
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 | 309172 | 262636 | 105 | 105 | 0.03% | 0.04% |  |
B | 309172 | 262630 | 10449 | 10449 | 3.38% | 3.98% |  |
C | 309172 | 262634 | 11 | 11 | 0.00% | 0.00% |  |
D | 309172 | 262632 | 4496 | 4496 | 1.45% | 1.71% |  |
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 | 235 | 67772952 | 22010.09 | 14014 | 13796 | 3078.5 |
A | 6 | 16 | 1371496 | 441.02 | 14014 | 13796 | 3078.5 |
A | 0 | 13 | 559904 | 177.39 | 14014 | 13796 | 3078.5 |
B | 0 | 189 | 60780699 | 20986.8 | 14944 | 14706 | 2895.4 |
B | 10 | 246 | 1367191 | 467.11 | 14944 | 14706 | 2895.4 |
B | 0 | 219 | 611604 | 206.15 | 14944 | 14706 | 2895.4 |
C | 15 | 208 | 944650 | 262.71 | 14917 | 14971 | 3538.8 |
C | 2 | 16 | 267931 | 71.48 | 14917 | 14971 | 3538.8 |
C | 4 | 224 | 90011 | 21.2 | 14917 | 14971 | 3538.8 |
D | 1 | 52 | 42676219 | 12397.71 | 14665 | 14222 | 3441.1 |
D | 2 | 250 | 4772146 | 1382.67 | 14665 | 14222 | 3441.1 |
D | 12 | 233 | 4196182 | 1215.29 | 14665 | 14222 | 3441.1 |
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 |  |