[IGSMAIL-6896] News about PZ-90 terrestrial coordinate system for GLONASS

[Jake Griffiths - NOAA Federal]

Author: Analysis Coordinator

Dear Colleagues,

According to the Russian Federal Space Agency (Information-Analytical Centre;
IAC), the "Parametry Zemli 1990”" (PZ-90.11) terrestrial geocentric coordinate
system has been implemented in the operation of GLObal NAvigation Satellite
System (GLONASS). However, there should be no obvious impact for most GLONASS
users.

See http://www.glonass-iac.ru/en/content/news/?ELEMENT_ID=721 for more
information. Note, that the "Annex" referred to in the above link is apparently
the updated ICD available at (English version):

http://www.spacecorp.ru/bitrix/redirect.php?event1=news_out&event2=%2Fupload%2Fiblock%2F1c4%2Fcgs-aaixymyt+5.1+ENG+v+2014.02.18w.pdf&event3=%C8%CA%C4-%F0%E5%E4%E0%EA%F6%E8%FF+5.1+ENG+%28+2014.02.18%29.pdf&goto=%2Fupload%2Fiblock%2F1c4%2Fcgs-aaixymyt+5.1+ENG+v+2014.02.18w.pdf

Although, the updated ICD says v5.1 and has a date of 2008, PZ-90.11 is
referenced within the document, along with the associated geodetic constants.
The update to the reference system from PZ-90.02 apparently consists of an
origin shift, small rotations of the axes, and a small scale change, all made
in an effort to improve the alignment w.r.t. ITRF.

FYI,
jake

-- 
Dr. Jake Griffiths
Satellite Geodesy & Geophysics
IGS Analysis Coordinator
Geosciences Research Division
NOAA National Geodetic Survey
1315 East-West Highway, N/NGS6
Silver Spring, MD 20910 USA

p: (301) 713-3200  ext.153
f: (301) 713-4324
e: jake.griffiths at noaa.gov