Observation information
- date-obs: 2020-09-23
- time-obs: 12:28:23.220000000
- date-end: 2020-09-26
- time-end: 13:15:00.110400000
- obs_id: A09_145T01_9000003900
- exposure: 136200.62872
- 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_9000003900cztM0_level2_bc.evt
| modeM0/AS1A09_145T01_9000003900cztM0_level2_quad_clean.evt
|
Size (bytes) | 11,564,343,360 | 3,183,373,440 |
Size | 10.8 GB
| 3.0 GB
|
Events in quadrant A | 132,546,409 | 18,406,556 |
Events in quadrant B | 54,459,556 | 21,884,881 |
Events in quadrant C | 49,139,044 | 20,964,603 |
Events in quadrant D | 98,972,366 | 19,941,065 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4526 | 0 |
B | 0 | 4526 | 0 |
C | 0 | 4526 | 0 |
D | 0 | 4526 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 902417 | 0 |
B | 0 | 484362 | 0 |
C | 0 | 471772 | 0 |
D | 0 | 642741 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 354 | 0 |
B | 0 | 355 | 0 |
C | 0 | 355 | 0 |
D | 0 | 355 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 222095 | 54788 | 24.668723% |
B | 222095 | 4124 | 1.856863% |
C | 222095 | 3916 | 1.763209% |
D | 222094 | 15233 | 6.858808% |
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 | 261998 | 222067 | 5210 | 5210 | 1.99% | 2.35% |  |
B | 261998 | 222062 | 135 | 135 | 0.05% | 0.06% |  |
C | 261998 | 222069 | 26 | 26 | 0.01% | 0.01% |  |
D | 261998 | 222062 | 3302 | 3302 | 1.26% | 1.49% |  |
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 | 14 | 235 | 52813130 | 21236.23 | 11304 | 11108 | 2486.4 |
A | 6 | 16 | 34594617 | 13909.0 | 11304 | 11108 | 2486.4 |
A | 12 | 16 | 748630 | 296.62 | 11304 | 11108 | 2486.4 |
B | 0 | 189 | 2305949 | 923.42 | 12965 | 12743 | 2483.4 |
B | 10 | 245 | 722121 | 285.65 | 12965 | 12743 | 2483.4 |
B | 5 | 172 | 593763 | 233.96 | 12965 | 12743 | 2483.4 |
C | 15 | 208 | 646144 | 215.85 | 12441 | 12505 | 2935.6 |
C | 2 | 16 | 291012 | 94.87 | 12441 | 12505 | 2935.6 |
C | 3 | 233 | 135957 | 42.05 | 12441 | 12505 | 2935.6 |
D | 1 | 52 | 29824024 | 10008.48 | 12209 | 11858 | 2978.7 |
D | 5 | 222 | 6909406 | 2315.63 | 12209 | 11858 | 2978.7 |
D | 11 | 176 | 5467124 | 1831.43 | 12209 | 11858 | 2978.7 |
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 |  |