Conveners
Oral2: VGOS Strategies and Expected Results: Part 1
- Brian Corey (MIT Haystack Observatory)
- Bill Petrachenko (Natural Resources Canada)
Oral2: VGOS Strategies and Expected Results: Part 2
- Bill Petrachenko (Natural Resources Canada)
- Brian Corey (MIT Haystack Observatory)
Dr
Roger Cappallo
(MIT Haystack Observatory)
14/03/2016, 14:45
2: VGOS Strategies and Expected Results
Oral Presentation
Now that significant amounts of data have begun to flow through the VGOS pipeline, we are encountering real-world issues in the fringe-fitting process. In order to create a high-quality geodetic observable one wants to minimize the sensitivity of group delay to instrumental parameters that may change over time, while at the same time maximizing the amount of information that is extracted. This...
Mr
Per Erik Opseth
(Norwegian Mapping Authority)
14/03/2016, 15:10
2: VGOS Strategies and Expected Results
Oral Presentation
February 26th 2015 the United Nations General assembly adopted the resolution on the Global Geodetic Reference Frame (GGRF). Presently major effort under a UN mandate is entered into developing a road map giving guidance to how the GGRF shall become sustainable. This work will influence the geodetic framework conditions in the years to come. As a contribution to global geodesy, Norway is...
Dr
Dan MacMillan
(NVI, Inc./NASA GSFC)
15/03/2016, 09:00
2: VGOS Strategies and Expected Results
Oral Presentation
We simulated future networks of VLBI+SLR sites to assess their performance. The objective is to build a global network of geographically well distributed collocated next generation sites from each of the space geodetic techniques. The network is being designed to meet the GGOS terrestrial reference frame goals of 1 mm in accuracy and 0.1 mm/yr in stability. We simulated the next generation...
Dr
Bill Petrachenko
(Natural Resources Canada)
15/03/2016, 09:15
2: VGOS Strategies and Expected Results
Oral Presentation
Source structure has long been recognized as a significant risk factor for the broadband method. The issue of greatest concern is that structure related phases and delays will lead to cycle slips during broadband phase connection. These errors will be difficult to handle since they are both subtle to detect and almost certainly impossible to correct after the fact.
As the advent of VGOS...
Dr
Lucia Plank
(University of Tasmania)
15/03/2016, 09:30
2: VGOS Strategies and Expected Results
Oral Presentation
With the transition to VGOS, co-located radio telescopes will be common at many sites. This can be as a sibling telescope, when a VGOS antenna is built next to a legacy one or as the concept of a twin telescope, with two identical VGOS antennas.
The co-location of two antennas offers new possibilities in both operation and analysis. The immediate question for observing with a sibling/twin...
Dr
Jim Lovell
(University of Tasmania)
15/03/2016, 09:45
2: VGOS Strategies and Expected Results
Oral Presentation
The continuous observing mode envisioned for the new array of VGOS stations would benefit greatly from a high level of automation, from scheduling through to analysis. The centrally-operated AuScope VLBI array of three 12m antennas in Australia is serving as a testbed for these automation techniques. Here we describe the challenges we are addressing, how we are using simulations to undertand...
Dr
Alexander Neidhardt
(Technische Universität München, Geodätisches Observatorium Wettzell)
15/03/2016, 10:00
2: VGOS Strategies and Expected Results
Oral Presentation
A first test implementation of an auxiliary data archive is tested at the Geodetic Observatory Wetttzell. It is software which follows-on the Wettzell SysMon, extending the database and data sensors with the functionalities of a professional monitoring environment, named Zabbix. Some extensions to the remote control server on the NASA Field System PC enable the inclusion of data from external...
Prof.
Alexander Ipatov
(Institute of Applied Astronomy RAS)
15/03/2016, 10:15
2: VGOS Strategies and Expected Results
Oral Presentation
IAA finished work on creation of new generation radio interferometer with two VGOS antennas at the Badary and Zelenchukskaya co-location stations. The series of 48 one base 1 hour VLBI sessions (up to four sessions per day) were performed from 04 Nov to 18 Nov 2015. Observations were carried out using wideband S/X receivers, 3 X-band and 1 S-band 512 MHz channels at one or two circular...
