Observation information
- date-obs: 2018-05-14
- time-obs: 01:23:42.625400000
- date-end: 2018-05-15
- time-end: 01:54:09.551800000
- obs_id: C03_022T01_9000002098
- exposure: 44739.3246928
- sourceid: Crab_SSM3
- observer: ramadevi
- ra_pnt: 338.689
- dec_pnt: 9.7603
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C03_022T01_9000002098cztM0_level2_bc.evt
| modeM0/AS1C03_022T01_9000002098cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,202,945,920 | 940,746,240 |
Size | 3.0 GB
| 897.2 MB
|
Events in quadrant A | 18,117,188 | 6,030,837 |
Events in quadrant B | 22,812,396 | 5,973,108 |
Events in quadrant C | 18,161,211 | 5,770,704 |
Events in quadrant D | 32,717,945 | 5,491,280 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 163717 | 0 |
B | 0 | 189145 | 0 |
C | 0 | 161115 | 0 |
D | 0 | 224810 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1546 | 0 |
B | 0 | 1546 | 0 |
C | 0 | 1546 | 0 |
D | 0 | 1546 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 76258 | 909 | 1.192006% |
B | 76258 | 3973 | 5.209945% |
C | 76258 | 645 | 0.845813% |
D | 76258 | 6719 | 8.810879% |
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 | 88229 | 76264 | 20 | 20 | 0.02% | 0.03% |  |
B | 88229 | 76261 | 59 | 59 | 0.07% | 0.08% |  |
C | 88229 | 76262 | 1 | 1 | 0.00% | 0.00% |  |
D | 88229 | 76259 | 588 | 588 | 0.67% | 0.77% |  |
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 | 8 | 15 | 1403954 | 1595.49 | 4046 | 3967 | 877.5 |
A | 12 | 189 | 462712 | 522.81 | 4046 | 3967 | 877.5 |
A | 9 | 143 | 408492 | 461.01 | 4046 | 3967 | 877.5 |
B | 0 | 182 | 3938534 | 5207.51 | 3940 | 3826 | 755.6 |
B | 10 | 245 | 637061 | 838.07 | 3940 | 3826 | 755.6 |
B | 4 | 97 | 522588 | 686.57 | 3940 | 3826 | 755.6 |
C | 3 | 233 | 2995194 | 3598.71 | 3829 | 3774 | 831.2 |
C | 0 | 207 | 137481 | 160.85 | 3829 | 3774 | 831.2 |
C | 13 | 61 | 22732 | 22.81 | 3829 | 3774 | 831.2 |
D | 13 | 122 | 4148650 | 4602.96 | 3771 | 3656 | 900.5 |
D | 5 | 222 | 3699099 | 4103.74 | 3771 | 3656 | 900.5 |
D | 10 | 157 | 2730308 | 3027.91 | 3771 | 3656 | 900.5 |
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 |  |