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Alex Pratt
登録日: 2012.01.17 記事: 35
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日時: Fri Jun 04, 2021 12:04 am 記事の件名: UFO Orbit rejects data |
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Hi SonotaCo,
I am collating multi-station CSV files from the NEMETODE group to create our 2020 dataset.
UFO Orbit rejects 24,000 of the 57,000 entries in this master file. I have attached a sample CSV of 66 entries and its ErrRec file. 34 of them were rejected. What is the problem with this data?
Thanks,
Alex.
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2020 sample.csv |
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ErrRec.csv |
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10.58 KB |
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103 回 |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12671 所在地: 139.67E 35.65N
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日時: Fri Jun 04, 2021 7:14 am 記事の件名: |
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ErrRec is produced by input data check of UO2
As for 20200329_000109, YMDHMS ,Ra1Dc1, Dir1Alt1, location in the record is inconsistent (Alt1 has too big difference)
I cannot imagine why it happened
if you can show me below, . there can be hints...
M20200329_000109I87_SEA.XML
M20200329_000109I87_SEP.*
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Alex Pratt
登録日: 2012.01.17 記事: 35
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日時: Fri Jun 04, 2021 5:48 pm 記事の件名: UFO Orbit rejects data |
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Hi SonotaCo,
I assembled all the CSV files in Excel, so perhaps I caused the 'reject' errors...
It would take a few days to access the M20200329_000109 I87 data from the user's archive, but I have attached my data for the 'rejected' entry:
M20200329_012420_Leeds_SE
Can you please identify the error with this attached J3_dDr capture? It is rejected by the latest versions of UO2 but not rejected by an older version of UO2.
I have also attached all my 12 entries for J3_dDr (delta Draconids). The 11 others were not rejected by UO2.
*** On 2020/03/29 our clocks changed to Summer Time. Our UFO Capture computers are permanently set to UT, but perhaps this causes a problem if any meteors captured during the Summer Time changeover ***
Many thanks,
Alex.
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38.37 KB |
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ErrRec.csv |
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557 Bytes |
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106 回 |
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M20200329_012420_Leeds_SE.xml |
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1 KB |
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M20200329_012420_Leeds_SEA.XML |
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M2020_Leeds_J3_dDr.csv |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12671 所在地: 139.67E 35.65N
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日時: Sat Jun 05, 2021 9:11 am 記事の件名: |
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I could not investigate the reason of the error itself, because the profile of Leeds_SE is far from correct and I could not check further.
The correct values of az ev rot of M29299328_012420_Leeds_SE may be close to the values shown below.
Please correct profile, and re analyze, and let me know with correct data if the problem happens again.
(delete existing M*A.XML of clip files at first, (erase old wrong value memories), and then tune profile and analyze again with new profile)
説明: |
current profile (upper value) -- not matched
modified profile (lower) |
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58.79 KB |
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current ref star position |
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63.11 KB |
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2862 回 |
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62.56 KB |
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2862 回 |
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Alex Pratt
登録日: 2012.01.17 記事: 35
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日時: Sat Jun 05, 2021 9:58 pm 記事の件名: UFO Orbit rejects data |
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Hi SonotaCo
I created a new profile and reprocessed that clip. CSV file attached. My err1 and err2 values are small, and refs is >100.
However, it is still rejected by UO2. File attached.
I think the problem occurs if a meteor is captured during the 1 or 2 hours of switchover to / from Daylight Saving Time. My Capture computers are set to GMT / UTC and not to change for Daylight Saving Time / Summer Time.
Perhaps this Capture computer was incorrectly configured last year, or perhaps something happens in MS-Windows during the Summer Time change...?
Whatever causes this problem, it is rare, affecting very few meteors in my dataset, so do not worry about it.
Using Excel to remove duplicate entries -
I collated thousands of our records into Excel and used it to Highlight Duplicates and to Delete Duplicates, I then saved a master CSV file. UO2 then rejected many of the records from this CSV file. Perhaps Excel saved the CSV fields in a different format? Anyway, be careful if you use Excel to process your data.
Clear skies,
Alex.
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M20200329_012420_Leeds_SE.csv |
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1.24 KB |
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ErrRec.csv |
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604 Bytes |
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108 回 |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12671 所在地: 139.67E 35.65N
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日時: Sun Jun 06, 2021 7:55 am 記事の件名: Re: UFO Orbit rejects data |
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Alex Pratt wrote: | I think the problem occurs if a meteor is captured during the 1 or 2 hours of switchover to / from Daylight Saving Time. My Capture computers are set to GMT / UTC and not to change for Daylight Saving Time / Summer Time.
Perhaps this Capture computer was incorrectly configured last year, or perhaps something happens in MS-Windows during the Summer Time change...?
Whatever causes this problem, it is rare, affecting very few meteors in my dataset, so do not worry about it.
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Thank you for message.
I understand, yes, the time zone setting of UTC may be the best.
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