Observation information
- date-obs: 2020-09-09
- time-obs: 10:42:26.546800000
- date-end: 2020-09-09
- time-end: 16:06:30.526900000
- obs_id: A09_145T01_9000003854
- exposure: 7068.88327102
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_145T01_9000003854cztM0_level2.fits
| modeM0/AS1A09_145T01_9000003854cztM0_level2_quad_clean.evt
|
Size (bytes) | 166,579,200 | 152,527,680 |
Size | 158.9 MB
| 145.5 MB
|
Events in quadrant A | 1,085,918 | 971,574 |
Events in quadrant B | 976,842 | 952,550 |
Events in quadrant C | 1,052,960 | 922,573 |
Events in quadrant D | 735,402 | 581,601 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 40574 | 0 |
B | 0 | 51501 | 0 |
C | 0 | 37484 | 0 |
D | 0 | 91531 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 270 | 0 |
B | 0 | 270 | 0 |
C | 0 | 270 | 0 |
D | 0 | 270 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 19 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17535 | 501 | 2.857143% |
B | 17535 | 2018 | 11.508412% |
C | 17535 | 466 | 2.657542% |
D | 17535 | 6418 | 36.601084% |
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 | 19445 | 17532 | 0 | 0 | 0.00% | 0.00% |  |
B | 19445 | 17511 | 0 | 0 | 0.00% | 0.00% |  |
C | 19445 | 17535 | 0 | 0 | 0.00% | 0.00% |  |
D | 19445 | 17252 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 993 | 10.23 | 282 | 266 | 71.0 |
A | 7 | 110 | 889 | 8.77 | 282 | 266 | 71.0 |
A | 0 | 30 | 853 | 8.26 | 282 | 266 | 71.0 |
B | 2 | 9 | 790 | 10.25 | 258 | 246 | 53.1 |
B | 3 | 17 | 665 | 7.9 | 258 | 246 | 53.1 |
B | 2 | 8 | 646 | 7.54 | 258 | 246 | 53.1 |
C | 12 | 241 | 754 | 6.96 | 278 | 260 | 71.0 |
C | 9 | 209 | 740 | 6.76 | 278 | 260 | 71.0 |
C | 2 | 191 | 708 | 6.31 | 278 | 260 | 71.0 |
D | 1 | 31 | 521 | 5.81 | 210 | 191 | 56.8 |
D | 6 | 67 | 520 | 5.79 | 210 | 191 | 56.8 |
D | 4 | 160 | 517 | 5.73 | 210 | 191 | 56.8 |
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 |  |