Observation information
- date-obs: 2018-09-14
- time-obs: 04:09:33.207400000
- date-end: 2018-09-15
- time-end: 06:08:32.137900000
- obs_id: T02_091T01_9000002368
- exposure: 49013.0857505
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_091T01_9000002368cztM0_level2_bc.evt
| modeM0/AS1T02_091T01_9000002368cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,681,827,200 | 1,120,608,000 |
Size | 2.5 GB
| 1.0 GB
|
Events in quadrant A | 18,075,909 | 7,186,843 |
Events in quadrant B | 20,575,526 | 7,270,243 |
Events in quadrant C | 18,040,980 | 7,029,697 |
Events in quadrant D | 18,997,767 | 6,896,033 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1648 | 0 |
B | 0 | 1648 | 0 |
C | 0 | 1648 | 0 |
D | 0 | 1648 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 127 | 0 |
B | 0 | 127 | 0 |
C | 0 | 127 | 0 |
D | 0 | 127 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 171328 | 0 |
B | 0 | 181884 | 0 |
C | 0 | 173328 | 0 |
D | 0 | 173142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 81130 | 981 | 1.209170% |
B | 81130 | 1674 | 2.063355% |
C | 81130 | 1320 | 1.627018% |
D | 81130 | 816 | 1.005793% |
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 | 93541 | 81119 | 27 | 27 | 0.03% | 0.03% |  |
B | 93541 | 81122 | 35 | 35 | 0.04% | 0.04% |  |
C | 93541 | 81123 | 5 | 5 | 0.01% | 0.01% |  |
D | 93541 | 81121 | 22 | 22 | 0.02% | 0.03% |  |
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 | 12 | 96 | 131816 | 127.37 | 4551 | 4471 | 999.8 |
A | 9 | 143 | 130869 | 126.42 | 4551 | 4471 | 999.8 |
A | 15 | 174 | 104523 | 100.07 | 4551 | 4471 | 999.8 |
B | 15 | 222 | 695188 | 783.63 | 4573 | 4480 | 881.4 |
B | 4 | 173 | 538057 | 605.36 | 4573 | 4480 | 881.4 |
B | 7 | 220 | 442159 | 496.56 | 4573 | 4480 | 881.4 |
C | 3 | 233 | 1007700 | 965.34 | 4398 | 4403 | 1039.3 |
C | 10 | 22 | 69406 | 62.54 | 4398 | 4403 | 1039.3 |
C | 7 | 247 | 34245 | 28.71 | 4398 | 4403 | 1039.3 |
D | 2 | 152 | 776933 | 735.17 | 4501 | 4364 | 1050.9 |
D | 2 | 14 | 436792 | 411.5 | 4501 | 4364 | 1050.9 |
D | 2 | 234 | 308181 | 289.11 | 4501 | 4364 | 1050.9 |
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 |  |