Retea IGS-IP

[nicu1000]

M-am conectat la IGS-IP Broadcaster la statia BUCU0 (de altfel singura statie la care m-am putut conecta). Receptorul s-a fixat, totul OK. Am determinat un punct.
Apoi m-am conectat la ROMPOS. Acelasi punct l-am determinat cu ROMPOS. Diferenta intre coodonate 1.6m. A mai facut cineva un astfel de experiment ? Stie cineva de ce sunt diferente intre cele doua retele ?
Multumesc!

[Mit]

Si eu m-am comutat candva la Budapesta (BUTE si PENC) si in RTK cu baza de peste 100 km nu am avut o asa eroare ( precizia era undeva in 60cm, fara solutie "fixed" ) fata de puncte masurate RTK cu TIM1.
Mai vezi, poate-i alta belea, de la retele sigur n-are cum sa fie asa mare diferenta.

Modificat de Mit (10-05-2013 18:38:11)

[adrianc]

Diferenta poate proveni de la coordonatele transmise de retea pentru statia permeneta. Daca iti inregistreaza in controller coordonatele poti sa verifici.

[nicu1000]

[adrianc]

Pune coordonatele aici sa vada si ochii nostri  si sa ne dam cu parerea.

[nicu1000]

Coordonate BUCU din ROMPOS: 44.27.50,19198; 26.07.32,65014; 143.2060
Coordonate BUCU0 din IGS:      44.27.50,14878; 26.07.32,69424; 139.0744

[adrianc]

Nu inteleg. Cum ai zis si tu, nu seamana cu nimic de la IGS sau EUREF.
Poate se jucau astia cu reteaua in ziua in care ai masurat.
Seamana cu o solutie Single Point Pozitioning dar in cazul acesta pierdem notiunea de RETEA.

[adrianc]

Am scris la BKG care administreaza reteaua si am primit urmatorul raspuns:
the coordinates transmitted are set by the station operators.

For station BUCU0 you may contact Tiberiu Rus (mail  E-mail .ro) from Bucharest Technical University of Civil Engineering.

Best regards,
Peter Neumaier
BKG Frankfurt
Omul a trimis mail-ul si profesorului Rus. Daca nu imi raspunde in urmatoarele zile mai scriu un mail.

[adrianc]

A raspuns si profesorul Rus

I checked the coordinates reported by RT connection
at
ftp://epncb.oma.be/pub/station/coord/EPN/RTCM.CRD" target="_blank">ftp://epncb.oma.be/pub/station/coord/EPN/RTCM.CRD
and as you can see in the attached picture there are
BUCU 11401M001     4093761.2364   2007793.5854   4445129.7764 in
ETRF2000 datum at EPOCH: 2013-01-01 00:00:00
and are different than those you have reported:
4093758.967, 2007793.564, 4445125.918.
Also from ROMPOS RT service the coordinates reported are:
MT03 Stat 54 ZCount 789.6 X 4093761.270 Y 2007793.610 Z 4445129.830
in ETRF2000 datum at EPOCH: 1989.000
("technical coordinates" adopted also for EUPOS RT service
- not exactly the OFFICIAL solution for BUCU listed bellow
BUCU ETRF2000 1989.000 4093761.2060 2007793.5760 4445129.7640  or
BUCU ETRF2000 1989.000 44 27 50.19198   26  7 32.65012   143.2060
closed to those from EUREF/IGS-IP.
Anyway I filled and sent today (18 May 2013) a Registration
Form for EUREF/IGS IP service in order to check personal
what are the coordinates received by users.
After activating the account I will send my conclusion
on that problem.
With best regards,
Tiberiu.

Deci, se misca ceva.