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Steve Bosley
登録日: 2016.12.05 記事: 8
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日時: Fri Oct 09, 2020 1:05 am 記事の件名: How does UFO Orbit calculate QA |
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Hi,
Can you please tell me how UFO Orbit calculates QA.
The manual describes how to calculate Ed and Ex but it only says QA is calculated on the empirical formula so I cannot see why some of my data was rejected at Q3
Thank You
Steve Bosley
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12670 所在地: 139.67E 35.65N
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日時: Fri Oct 09, 2020 10:11 am 記事の件名: Re: How does UFO Orbit calculate QA |
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Steve Bosley wrote: | Can you please tell me how UFO Orbit calculates QA.
The manual describes how to calculate Ed and Ex but it only says QA is calculated on the empirical formula so I cannot see why some of my data was rejected at Q3 |
QA is the product of weighted value of Qo,Ex,dv,gm,dGP,drop,inout,tme,leap...
It is something of 100 programing steps, and is difficult to explain all in text.
As is written in the manual, please use individual conditions to select the quality clearly.
If you can show me a sample of M*csvs, I will look into them.
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Steve Bosley
登録日: 2016.12.05 記事: 8
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日時: Fri Oct 09, 2020 10:11 pm 記事の件名: Re: How Does UFO Orbit Calculate QA ? |
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please find a file of csv files from an event which is "unified( 8 ) at Q0
It is interesting that Q1 and Q2 both calculate it as a unified(7) event, but Q3 calculates it to be two, different, unified(2) events.
If you can show me how QA is calculated for any of the pairs, that would be great.
Thank You
Steve Bosley
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12670 所在地: 139.67E 35.65N
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日時: Sat Oct 10, 2020 6:39 am 記事の件名: Re: How Does UFO Orbit Calculate QA ? |
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Steve Bosley wrote: | please find a file of csv files from an event which is "unified( 8 ) at Q0
It is interesting that Q1 and Q2 both calculate it as a unified(7) event, but Q3 calculates it to be two, different, unified(2) events.
If you can show me how QA is calculated for any of the pairs, that would be great.
Thank You
Steve Bosley |
Could you send me some sample data?
here or mail to admin(at)sonotaco.jp
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Steve Bosley
登録日: 2016.12.05 記事: 8
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日時: Sat Oct 10, 2020 7:04 am 記事の件名: |
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Sorry, I forgot to attach the file
Steve
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U2_20200507_Test_Orbits.csv |
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8.02 KB |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12670 所在地: 139.67E 35.65N
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日時: Sat Oct 10, 2020 2:23 pm 記事の件名: |
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OK yet,
I need the UFOOrbitV2 input M*.csv data to reproduce the problem., thank you.
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Steve Bosley
登録日: 2016.12.05 記事: 8
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日時: Sat Oct 10, 2020 3:33 pm 記事の件名: |
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So sorry, I sent the output file !
Please find attached the input to UFO Orbit
Best Wishes,
Steve Bosley
説明: |
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ファイル名: |
Test Event Analysis Data for Year 2020.csv |
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2.79 KB |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12670 所在地: 139.67E 35.65N
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日時: Sun Oct 11, 2020 10:50 am 記事の件名: |
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Thank you for the sample. It seems it is not a matter of QA, but each individual reason.
The reasons of rejections are written in the "UO2_Quality.log" file
which is created at each computation into the UO2 directory
when the "log" check box on the Quality sheet is ON.
In this case The pair of Chelmsford_NW(the second part)-Lacker1_L1 is rejected on Q1.
In the log file The first pair of Chelmsford_NW-Lacker1_L1 was qualified,
but the second pair was rejected by "dGP=1.2 ... Ground Pole not matched"
dGP is the cross angle between two trajectory planes,
where the trajectory plane is a plane that contains computed trajectory and the center of the earth.
(Ground Pole is the vector that is diagonal to the trajectory plane, and is used for the computation of cross angle)
By changing the dGP threshold from 1.0 to 1.3 manually, the pair becomes "Qualified".
Finally, this means the small error in the observation on the second part of Chelmsford_NW caused the rejection.
As for Q3 case, the reasons are as below.
Ask me again if problem remains.
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Steve Bosley
登録日: 2016.12.05 記事: 8
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日時: Sun Oct 11, 2020 9:28 pm 記事の件名: |
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Most interesting - I had not discovered the log file !
I will take some time to study it and then I hope all will be clear.
Many thanks,
Steve Bosley
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