[teqc] Query

Rui Fernandes rui at segal.ubi.pt
Thu Oct 4 14:19:52 MDT 2018


Dear Rob,

     The header of the summary file using the APPS shows that the solution is 
still in ITRF08. So, it is already in ITRF14? Since when?


     Thanks,

         Rui


On 04/10/18 19:22, Robert Khachikyan wrote:
> My wishful thinking resulted in a typo for ITRF "18".
>
> I should clarify that most JPL clocks and orbits are available in ITRF14.
>
> Apologies for the confusion.
>
> Regards,
> --Robert
>
>
> On 10/04/2018 10:19 AM, Robert Khachikyan wrote:
>> Dear Javier,
>>
>> The JPL clocks and orbits are now mostly available for ITRF18. However, this 
>> is data driven.
>>
>> What date range of your data you are PPP-ing?
>>
>> Regards,
>> --Robert
>>
>>
>> On 10/04/2018 09:37 AM, Javier Jovani Mendez Ramirez wrote:
>>>
>>> Good morning from
>>>
>>>
>>> Engineers is that I have the following doubt and I ask the favor if you can 
>>> explain me,
>>>
>>>
>>> It turns out that by construction I like to send Rinex files of positioning 
>>> that we do to two centers that provide a service called PPP - Precise Point 
>>> Positioning. These centers are the natural resources office of Canada and 
>>> the JPL laboratory of NASA.
>>>
>>>
>>> I do this to compare the coordinates thrown by these centers with the 
>>> coordinates that give me the adjustments using as a base, the stations of 
>>> continuous operation of the IGAC
>>>
>>>
>>> I did this because, from my analysis, the coordinates were "compatible", 
>>> that is, they were all referred to the same reference system, ITRF08 
>>> measurement time
>>>
>>>
>>> From a time here, when I send a rinex file to NASA, he reports me the 
>>> coordinates in ITRF 08 measurement time, when I send them to the Canadian 
>>> office he sends them to me in ITRF14 measurement time and when I download 
>>> the certifications of IGAC's continuous operation stations are given in ITRF14.
>>>
>>>
>>> The doubt that assails me is. What is the reference system that uses the GPS 
>>> system by default? How do I change the reference system of the GPS system? 
>>> Are the ITRF updates taken automatically by the GPS system?
>>>
>>>
>>> I will be very grateful for the collaboration you can give me
>>>
>>>
>>> Sincerely
>>>
>>>
>>> Javier Méndez
>>>
>>> Bogota Colombia
>>>
>>>
>>>
>>> _______________________________________________
>>> teqc mailing list
>>> teqc at postal.unavco.org
>>> https://postal.unavco.org/mailman/listinfo/teqc
>>
>>
>>
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>
>
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