[time-nuts] Fwd: CGSIC: FW: New NANU 2014090

[Magnus Danielson]

Fellow time-nuts,

We have now 15 L2C signals and 8 L5 signals in the air.

An L2C only receiver start to become useful in it's own right.

L1 C/A, L2C and L5 would allow for tripple frequency receiver. Things is 
starting to be interesting, if you have the receiver for it. With a 
double-frequency receiver, the ionospheric errors could be significantly 
reduced. Better position and better time-stability.

Cheers,
Magnus

-------- Forwarded Message --------
Subject: CGSIC: FW: New NANU 2014090
Date: Mon, 15 Dec 2014 14:16:29 +0000
From: Civil Global Positioning System Service Interface Committee 
(CGSIC) <cgsic at cgls.uscg.mil>
Reply-To: cgsic at cgls.uscg.mil
To: cgsic at cgls.uscg.mil <cgsic at cgls.uscg.mil>

All CGSIC:
     The eighth GPS-IIF satellite, SVN-69/PRN-03, launched on 29 October 
2014, has completed its operational checkout and was set to healthy and 
usable Friday, December 12, 2014. See NANU 2014090 below.  This brings 
the number of satellites transmitting the L2C signal to 15 and those 
transmitting the L5 signal to 08.  The next GPS-IIF satellite, 
IIF-9/SVN-70 is tentatively scheduled for launch in March of 2015.
V/R
Rick Hamilton
CGSIC Executive Secretariat
GPS Information Analysis Team Lead
USCG Navigation Center
703-313-5930

=================================================================================================
-----Original Message-----
From: NANU [mailto:nanu-bounces at cgls.uscg.mil] On Behalf Of TIS-PF-NISWS
Sent: Friday, December 12, 2014 5:17 PM
To: NANU list server
Subject: New NANU 2014090

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014090
SUBJ: SVN69 (PRN03) USABLE JDAY 346/2119
1.     NANU TYPE: USABINIT
        NANU NUMBER: 2014090
        NANU DTG: 122108Z DEC 2014
        REFERENCE NANU: N/A
        REF NANU DTG: N/A
        SVN: 69
        PRN: 03
        START JDAY: 346
        START TIME ZULU: 2119
        START CALENDAR DATE: 12 DEC 2014
        STOP JDAY: N/A
        STOP TIME ZULU: N/A
        STOP CALENDAR DATE: N/A

2.  CONDITION: GPS SATELLITE SVN69 (PRN03) WAS USABLE AS OF JDAY 346
     (12 DEC 2014) BEGINNING 2119 ZULU.

3.  POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
     MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, 
DSN 560-2541,
     COMM 719-567-2541, gpsoperationscenter at us.af.mil, 
HTTPS://GPS.AFSPC.AF.MIL
     MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3514,
     COMM 805-606-3514, JSPOCCOMBATOPS at VANDENBERG.AF.MIL

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