Observation information
- date-obs: 2015-11-07
- time-obs: 03:52:34.326200000
- date-end: 2015-11-08
- time-end: 12:44:14.201900000
- obs_id: P01_126T01_9000000084
- exposure: 58951.1077299
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_126T01_9000000084cztM0_level2_bc.evt
| modeM0/AS1P01_126T01_9000000084cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,667,784,320 | 904,527,360 |
Size | 2.5 GB
| 862.6 MB
|
Events in quadrant A | 18,567,612 | 5,562,745 |
Events in quadrant B | 16,854,898 | 5,684,582 |
Events in quadrant C | 14,730,934 | 5,610,080 |
Events in quadrant D | 25,535,761 | 5,401,234 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1532 | 0 |
B | 0 | 1532 | 0 |
C | 0 | 1532 | 0 |
D | 0 | 1532 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 331805 | 0 |
B | 0 | 324937 | 0 |
C | 0 | 296907 | 0 |
D | 0 | 322371 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 379 | 0 |
B | 0 | 379 | 0 |
C | 0 | 379 | 0 |
D | 0 | 381 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 74953 | 1042 | 1.390205% |
B | 74953 | 331 | 0.441610% |
C | 74953 | 105 | 0.140088% |
D | 74953 | 1284 | 1.713074% |
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 | 117003 | 74953 | 429 | 429 | 0.37% | 0.57% | |
B | 117003 | 74953 | 99 | 99 | 0.08% | 0.13% | |
C | 117003 | 74952 | 34 | 34 | 0.03% | 0.05% | |
D | 117003 | 74951 | 613 | 613 | 0.52% | 0.82% | |
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 | 15 | 200 | 2748538 | 4259.04 | 3102 | 3037 | 644.6 |
A | 15 | 171 | 782673 | 1209.43 | 3102 | 3037 | 644.6 |
A | 0 | 149 | 676042 | 1044.02 | 3102 | 3037 | 644.6 |
B | 7 | 221 | 1848507 | 3231.13 | 3211 | 3116 | 571.1 |
B | 5 | 191 | 645774 | 1125.24 | 3211 | 3116 | 571.1 |
B | 4 | 250 | 609539 | 1061.8 | 3211 | 3116 | 571.1 |
C | 15 | 241 | 564206 | 849.11 | 3123 | 3067 | 660.9 |
C | 9 | 83 | 545925 | 821.45 | 3123 | 3067 | 660.9 |
C | 1 | 1 | 513402 | 772.23 | 3123 | 3067 | 660.9 |
D | 12 | 237 | 3418878 | 4984.63 | 3071 | 2982 | 685.3 |
D | 1 | 4 | 2933791 | 4276.77 | 3071 | 2982 | 685.3 |
D | 13 | 221 | 1515636 | 2207.33 | 3071 | 2982 | 685.3 |
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 |
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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 | |
Veto Counter | |