[teqc] GLONAS SV ID 255 filter?

Evon Silvia esilvia at quantumspatial.com
Thu Jan 11 15:54:44 MST 2018


Out of curiosity, isn't the SV designation required to be exactly one
letter and two numbers?

Evon

On Thu, Jan 11, 2018 at 8:08 AM, Lou Estey <lou at unavco.org> wrote:

> Isaac,
>
> Did teqc generate the RINEX file with 'R255', as shown below?
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Louis H. Estey, Ph.D.              office:  [+001] 303-381-7456
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>
> "If the universe is the answer, what is the question?"
>                                                -- Leon Lederman
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
> On 11-Jan-18 09:04 AM, Isaac Hoyas Ester wrote:
>
>> Hello,
>>
>> I have been trying to find instructions on how to use TEQC to filter out
>> GLONASS observations with slot ID 255, this may happen because the Ublox
>> receiver that I'm trying to convert raw data from may be able to decode
>> data from a GLONASS SV before it can identify the SV. When this occurs
>> UBX-RXM-SFRBX messages will be issued with an svId of 255 to indicate
>> "unknown".
>>
>> Here you have a RINEX observation epoch example showing a GLONASS SV with
>> slot ID 255:
>>
>> 17 12 22 22 9 6.9940000 0 17G24G29G25G31G12G32R08R09G04G02R255R10
>> R19R20G14R18R16
>> 117546916.037 6 22368465.110 40.000 -3572.229
>> 96793892.692 8 18419251.051 49.000 865.332
>> 98761291.535 8 18793667.599 48.000 -530.120
>> 108401382.976 7 20628091.097 44.000 2600.400
>> 106915274.094 7 20345288.104 46.000 -2394.498
>> 110635793.326 6 21053314.460 40.000 -2140.314
>> 117523692.247 5 21946725.423 34.000 -1896.710
>> 94773244.591 7 17748010.382 46.000 1014.036
>> 114537730.343 5 21795793.846 34.000 2758.222
>> 113756995.669 7 21647232.534 42.000 -1099.824
>> 108373678.553 7 20316337.163 43.000 4082.983
>> 111241066.317 6 20868543.848 36.000 3423.625
>> 93974283.751 7 17567507.189 45.000 580.784
>> 108749564.993 6 20336700.814 37.000 4121.685
>> 108824714.448 6 20708650.009 40.000 -573.414
>> 104444377.513 6 19565957.947 40.000 -3400.356
>> 102423064.459 6 19173840.114 40.000 -2393.646
>>
>> Many thanks for your support.
>>
>> Best Regards
>>
>> Isaac
>>
>
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