Observation information
- date-obs: 2016-03-31
- time-obs: 05:39:19.462500000
- date-end: 2016-04-03
- time-end: 03:55:11.366400000
- obs_id: T01_112T01_9000000406
- exposure: 117969.484386
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T01_112T01_9000000406cztM0_level2_bc.evt
| modeM0/AS1T01_112T01_9000000406cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,852,896,640 | 2,546,354,880 |
Size | 6.4 GB
| 2.4 GB
|
Events in quadrant A | 45,193,660 | 16,208,512 |
Events in quadrant B | 47,227,004 | 16,498,672 |
Events in quadrant C | 46,300,789 | 16,108,826 |
Events in quadrant D | 55,758,709 | 15,173,829 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 437967 | 0 |
B | 0 | 443130 | 0 |
C | 0 | 441032 | 0 |
D | 0 | 476423 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2086 | 0 |
B | 0 | 2086 | 0 |
C | 0 | 2086 | 0 |
D | 0 | 2086 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 295 | 0 |
B | 0 | 295 | 0 |
C | 0 | 295 | 0 |
D | 0 | 295 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 205192 | 3771 | 1.837791% |
B | 205192 | 3784 | 1.844126% |
C | 205192 | 3174 | 1.546844% |
D | 205192 | 5111 | 2.490838% |
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 | 252952 | 205196 | 317 | 317 | 0.13% | 0.15% |  |
B | 252952 | 205190 | 172 | 172 | 0.07% | 0.08% |  |
C | 252952 | 205198 | 226 | 226 | 0.09% | 0.11% |  |
D | 252952 | 205191 | 506 | 506 | 0.20% | 0.25% |  |
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 | 0 | 128 | 4030639 | 1727.56 | 10295 | 10013 | 2327.4 |
A | 8 | 15 | 750328 | 318.09 | 10295 | 10013 | 2327.4 |
A | 0 | 149 | 520520 | 219.35 | 10295 | 10013 | 2327.4 |
B | 14 | 167 | 3293258 | 1720.6 | 10510 | 10221 | 1908.1 |
B | 10 | 244 | 941665 | 488.16 | 10510 | 10221 | 1908.1 |
B | 6 | 36 | 805236 | 416.66 | 10510 | 10221 | 1908.1 |
C | 2 | 53 | 3766980 | 1677.45 | 10183 | 10105 | 2239.6 |
C | 14 | 223 | 1125232 | 497.91 | 10183 | 10105 | 2239.6 |
C | 10 | 65 | 293057 | 126.34 | 10183 | 10105 | 2239.6 |
D | 13 | 169 | 3396964 | 1440.18 | 9993 | 9685 | 2352.0 |
D | 1 | 31 | 2279802 | 965.2 | 9993 | 9685 | 2352.0 |
D | 13 | 53 | 2270940 | 961.43 | 9993 | 9685 | 2352.0 |
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 |  |