***
Special Notice Regarding LORAN Closure: *** In accordance
with the DHS Appropriations Act, the U.S. Coast Guard will terminate
the transmission of all U.S. LORAN-C signals effective 2000Z 08 Feb
2010. At that time, the U.S. LORAN-C signal will be unusable and permanently
discontinued. This termination does not affect U.S. participation
in the Russian American or Canadian LORAN-C chains. U.S. participation
in these chains will continue temporarily in accordance with international
agreements. You may read more and download pertinent documents via
our LORAN-C page.
GPS
ALMANACS, NANUS, AND OPS ADVISORIES (INLUDING ARCHIVES)
Almanac information is available for download from this page.
You may very well need to change the health settings when
you use Yuma or SEM almanac data. While the orbital description
data is generally usable for months, the satellite health
may change at any time. For information on satellite health
at times other than the almanac "Time Of Applicability",
see the NANUs or status messages. An almanac entry of 000
indicates the satellite is healthy.
