Observation information
- date-obs: 2019-05-09
- time-obs: 05:30:02.314900000
- date-end: 2019-05-09
- time-end: 16:05:06.327100000
- obs_id: T03_108T01_9000002898
- exposure: 17083.2203936
- sourceid: MAXI J1820+070
- observer: JohnPaice
- ra_pnt: 275.0912
- dec_pnt: 7.185639
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T03_108T01_9000002898cztM0_level2_bc.evt
| modeM0/AS1T03_108T01_9000002898cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,121,526,720 | 390,234,240 |
Size | 1.0 GB
| 372.2 MB
|
Events in quadrant A | 7,080,539 | 2,442,989 |
Events in quadrant B | 7,514,974 | 2,459,252 |
Events in quadrant C | 7,307,211 | 2,373,125 |
Events in quadrant D | 9,859,683 | 2,327,789 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 67416 | 0 |
B | 0 | 69086 | 0 |
C | 0 | 68694 | 0 |
D | 0 | 76450 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 654 | 0 |
B | 0 | 654 | 0 |
C | 0 | 654 | 0 |
D | 0 | 654 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 60 | 0 |
B | 0 | 60 | 0 |
C | 0 | 60 | 0 |
D | 0 | 60 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 32260 | 483 | 1.497210% |
B | 32260 | 637 | 1.974582% |
C | 32260 | 632 | 1.959082% |
D | 32260 | 938 | 2.907626% |
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 | 38105 | 32257 | 0 | 0 | 0.00% | 0.00% |  |
B | 38105 | 32257 | 6 | 6 | 0.02% | 0.02% |  |
C | 38105 | 32262 | 1 | 1 | 0.00% | 0.00% |  |
D | 38105 | 32259 | 187 | 187 | 0.49% | 0.58% |  |
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 | 13 | 254 | 40914 | 100.44 | 1818 | 1784 | 389.6 |
A | 12 | 96 | 21309 | 50.12 | 1818 | 1784 | 389.6 |
A | 12 | 16 | 17105 | 39.33 | 1818 | 1784 | 389.6 |
B | 7 | 220 | 147831 | 434.22 | 1820 | 1779 | 336.4 |
B | 0 | 244 | 129925 | 380.99 | 1820 | 1779 | 336.4 |
B | 3 | 64 | 72173 | 209.29 | 1820 | 1779 | 336.4 |
C | 3 | 233 | 501993 | 1243.1 | 1739 | 1733 | 402.4 |
C | 9 | 221 | 49312 | 118.23 | 1739 | 1733 | 402.4 |
C | 0 | 207 | 28004 | 65.28 | 1739 | 1733 | 402.4 |
D | 13 | 104 | 820182 | 2021.75 | 1784 | 1724 | 404.8 |
D | 12 | 233 | 722772 | 1781.13 | 1784 | 1724 | 404.8 |
D | 1 | 52 | 629626 | 1551.04 | 1784 | 1724 | 404.8 |
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 |  |