From: <Tasso.Tzioumis_at_email.protected>
Date: Sun, 22 May 2011 12:49:44 +1000

Date: Sat, 21 May 2011 20:54:04 -0400
Subject: Re: [IVSmail] First fringes to the AuScope VLBI telescope at
Yarragadee -- and now first results
From: "Leonid Petrov" <Leonid.Petrov_at_lpetrov.<!--nospam-->net>
To: "Jim Lovell" <Jim.Lovell_at_utas.<!--nospam-->edu.au>
Cc: "ivs vlbi2010 committee" <ivs-v2c_at_ivscc.<!--nospam-->gsfc.nasa.gov>,
      ivsmail_at_ivscc.<!--nospam-->gsfc.nasa.gov,
      "LBA list observers" <vlbiobs_at_atnf.<!--nospam-->csiro.au>,
      "Astro Group" <astro_at_ares.<!--nospam-->phys.utas.edu.au>,
      "Paul Tregoning" <paul.tregoning_at_anu.<!--nospam-->edu.au>,
      "Helen Keogh" <helen.keogh_at_ozemail.<!--nospam-->com.au>,
      "Martin Ephgrave" <martin.ephgrave_at_cdu.<!--nospam-->edu.au>,
      "Gary Johnston" <gary.johnston_at_ga.<!--nospam-->gov.au>,
      "Rami Adada" <rami.adada_at_cobham.<!--nospam-->com>,
      "Peter Shield" <pshield_at_intertronicsolutions.<!--nospam-->com>,
      "Tanja Down" <tdown_at_unimelb.<!--nospam-->edu.au>,
      "Kevin Sinclair" <kevin.sinclair_at_cobham.<!--nospam-->com>,
      "Karan Goyal" <karan.goyal_at_cobham.<!--nospam-->com>,
      "Bob Twilley" <bob.twilley_at_ga.<!--nospam-->gov.au>,
      "David Jauncey" <david.jauncey_at_csiro.<!--nospam-->au>,
      "Mark Godwin" <mark.godwin_at_mpgodwin.<!--nospam-->com>,
      "Ryan Ruddick" <ryan.ruddick_at_ga.<!--nospam-->gov.au>,
      "Cherie Cooper" <cherie.cooper_at_utas.<!--nospam-->edu.au>,
      "John Morgan" <john.morgan_at_curtin.<!--nospam-->edu.au>,
      "Bob Cato" <bcato_at_globalantennaservices.<!--nospam-->com>,
      "Vince Noyes" <moblas_at_midwest.<!--nospam-->com.au>,
      "Bob Haydon" <rhaydon_at_unimelb.<!--nospam-->edu.au>,
      "Ron Thompson" <ronthompson_at_eos-aus.<!--nospam-->com>

Dear colleagues,

JFI, station YARRA12M participated in experiment r4481.
No fringes at X-band. :-(

Preliminary station position from the global solution using
S-band group delay observables with the ionosphere contribution
computed from GPS TEC maps taken from CODE data center is:

at epoch 2011.05.06:

YARRA12M X Comp -2388895.7 m
YARRA12M Y Comp 5043349.8 m
YARRA12M Z Comp -3078590.7 m

Or the same result at epoch 2000.0

YARRA12M X Comp -2388895.2 m
YARRA12M Y Comp 5043349.7 m
YARRA12M Z Comp -3078591.3 m

assuming the following velocity:

YARRA12M X Comp -47.45 mm/yr NNR-NUVEL1A
       Y Comp 9.12 mm/yr NNR-NUVEL1A
       Z Comp 51.76 mm/yr NNR-NUVEL1A

Random errors are at a level of 8 cm. Systematic errors
caused by the mismodeled ionosphere contribution at X-band
may be as large as 0.5 meter.

Waiting for good X-band fringes.

Leonid
21-MAY-2011 20:44:39
Received on 2011-05-22 12:50:21