Posted by Sam Wormley on February 8, 2011, 5:52 pm
> Webinar Describing New Coordinates for NGS CORS Nework Sites
> On Friday, February 25, 2011 at 1300h-1430h EST, NGS will host a webinar
> focused on describing the forthcoming change in coordinates (position and
> velocities) for CORS sites from ITRF2000 epoch 1997.0 and NAD 83(CORS96)
> epoch 2002.0. The new coordinates will be available in NGSTRF08 epoch 2005.0
> and NAD 83(CORS96A) epoch 2010.0. The underlying datum for NGSTRF08 is
> based on ITRF2008, but the positions are calibrated for the impending
> release of IGS08 (+igs08.atx). In this webinar, we will describe the:
> - methodology used to establish the new coordinates
> - magnitude of the coordinate changes
> - implications for post-processing applications outside of NGS.e.g. holding
> CORS with fixed positions and use of absolute (vs. relative) antenna
> calibrations
> - time-frame for the distribution of coordinates
> The presentation will be short with an extended period for participants
> to share concerns and ask questions. This will be the first of a regular
> series of presentations on this transition.
>
> The presentation will be given by Giovanni Sella and Jake Griffiths,
> and is open to everyone.
> The meeting will be via GoToMeeting via the following link
> https://www2.gotomeeting.com/register/122817186
> Call in number will be available shortly
> please check this newsletter
> http://www.ngs.noaa.gov/CORS/news.shtml
> For any questions please contact giovanni.sella @ noaa.gov
Posted by Kilgore Trout on February 9, 2011, 1:36 am
> Webinar Describing New Coordinates for NGS CORS Nework Sites
Very timely Sam.
I read the newsletter and found links to informative papers that I
need to read.
Thank you.
> On Friday, February 25, 2011 at 1300h-1430h EST, NGS will host a webinar
> focused on describing the forthcoming change in coordinates (position and
> velocities) for CORS sites from ITRF2000 epoch 1997.0 and NAD 83(CORS96)
> epoch 2002.0. The new coordinates will be available in NGSTRF08 epoch 2005.0
> and NAD 83(CORS96A) epoch 2010.0. The underlying datum for NGSTRF08 is
> based on ITRF2008, but the positions are calibrated for the impending
> release of IGS08 (+igs08.atx). In this webinar, we will describe the:
> - methodology used to establish the new coordinates
> - magnitude of the coordinate changes
> - implications for post-processing applications outside of NGS.e.g. holding
> CORS with fixed positions and use of absolute (vs. relative) antenna
> calibrations
> - time-frame for the distribution of coordinates
> The presentation will be short with an extended period for participants
> to share concerns and ask questions. This will be the first of a regular
> series of presentations on this transition.
>
> The presentation will be given by Giovanni Sella and Jake Griffiths,
> and is open to everyone.
> The meeting will be via GoToMeeting via the following link
> https://www2.gotomeeting.com/register/122817186
> Call in number will be available shortly
> please check this newsletter
> http://www.ngs.noaa.gov/CORS/news.shtml
> For any questions please contact giovanni.sella @ noaa.gov