[IGSSTATION-6602] Re: CHIL, CLAR, CMP9, HOLP, ROCK, SNI1, SPK1, TORP, UCLP, WHC1 bad files replaced on DOY 087

[Chaminda Senavirathna]

mr David

Dear mr david i need a help

i am from Sri Lanka in need several static file from IGS station.

i want to know to download the Static file from IGS station.?

i ll highly appreciate your Support.

Thanks and Regards,

Chaminda B Senavirathne.

SULECO (Pvt) Ltd,
House No.6, ROSETON PARK,
No.275/1, Divulpitiya,
Pepiliyana,
Sri Lanka.

Mob:        +94 77 2440789
Tele/Fax:  +94 11 2828100
E mail:  *info at corsnet.lk <info at corsnet.lk>*

Web Site:  sulecoltd at sltnet.lk,www.corsnet.lk <http://www.sulecoltd.com/>,







On Tue, Apr 5, 2016 at 11:53 PM, David Maggert <dmaggert at unavco.org> wrote:

> Dear Colleagues,
>
> We received raw Topcon data files for April 3rd that were translated
> incorrectly into RINEX files labeled March 27 (DOY 087).  Therefore the
> good files DOY 087 were overwritten on April 4th with data from April 3rd.
> Those bad RINEX files were just replaced with the correct files for DOY
> 087.  The IGS stations impacted were the following:
>
> CHIL, CLAR, CMP9, HOLP, ROCK, SNI1, SPK1, TORP, UCLP, WHC1
>
>
> We apologize for the inconvenience.  A detailed description from Lou Estey
> is provided below.
>
> Best Regards,
> David Maggert
>
>
>
> [2735] teqc +quiet +mds rg070403a
> week: 1890
> [2736] teqc -week 1890 +quiet +mds rg070403a
> 2016-03-27 00:00:00  2016-03-27 23:59:30   2441027  rg070403a
>
> ... which is one week earlier than when the data is valid.  This can be
> traced
> to the code changes I made on March 25th (see
> http://www.unavco.org/software/data-processing/teqc/log/log.html) to
> correct the
> GPS week reporting from SBF with navigation messages from the previous
> week.
> The logic changes made on March 25th were absolutely necessary and are
> correct.
>
> However, in correcting all that for every format, including Topcon TPS,
> this
> apparently brought to light an even more severe problem that these Topcon
> receivers
> have (that just happened to work with the older incorrect logic in teqc).
>
> E.g. file rg070403a is data for 3 Apr 2016, which is GPS week 1891 (this
> week).
> And this file does contain may GPS navigation messages for week 1891.
> However,
> it has a bunch of the previous week 1890.  This in itself is not a problem
> and is what I was fixing details on March 25th.  The problem is that these
> Topcons, on Sunday, are reporting navigation messages also collected a week
> prior to that.  In particular, there are a bunch collected in the wee
> minutes
> of GPS week 1889 (since ToW is just under 604800 == seconds in a week), but
> these are messages for 00:00 on 27 Mar (GPS week 1890).  The first old
> message below does not cause trouble. because it is clearly for end of week
> 1890, but any of the following ones would trip teqc up and cause it to
> report
> the starting week as 1890 because they are for the start of week 1890:
>
> 866 -> 1890: ToC= 604784  ToE= 604784  ToW= 604770
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601110
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601140
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 599880
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601110
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601140
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 599880
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601110
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601140
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 599880
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601110
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 601140
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
> 866 -> 1890: ToC=      0  ToE=      0  ToW= 604410
>
> Now to figure out a stable way to code around this ...
>
>
>
>
>
>
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>
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