Its positive that the SVs has exceeded contract design life saving money with
less launches.
But the launch on failure policy has also delayed the modernization of the
constellation - even if the last batch of 2R were retrofitted with some new
signals. I imagine that having SVs sitting in storage for 5+(more?) years also
has its implications with keeping support contracts etc.
Cheers,
Björn
div Originalmeddelande /divdivFrån: Magnus Danielson
mag...@rubidium.dyndns.org /divdivDatum:2014-07-29 20:46 (GMT+01:00)
/divdivTill: time-nuts@febo.com /divdivRubrik: Re: [time-nuts] Fwd:
CGSIC: FW: The next GPS Launch /divdiv
/divJohn,
It has delayed the launching of birds, as the old ones does not die of
quick enough for the planned schematic to maintain 24 birds, instead we
see 30-32 birds active for many years, and some being off air backups.
On the other hand, it gives more time to adjust the new birds with new
signals.
Cheers,
Magnus
On 07/29/2014 08:42 PM, John Allen wrote:
Hi Magnus et al - just FYI: 2 1/2 times the design lifetime is not unusual
for satellites. More of the Ham Oscar satellites have exceeded their
lifetime by that much or more. (Sorry, no facts handy).
It saves us USA taxpayers money when they last that long!
Regards, John K1AE
Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Magnus Danielson
Sent: Tuesday, July 29, 2014 2:12 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Fwd: CGSIC: FW: The next GPS Launch
Fellow time-nuts,
Things will shift in the sky. Lot's of changes.
SVN-33 is being decommissioned after 17.5 years of operation, with a 7 years
designed lifetime, that's 2.5 times the operational lifetime, and it's being
decommissioned in a controlled fashion. Respect.
Cheers,
Magnus
Original Message
Subject: CGSIC: FW: The next GPS Launch
Date: Tue, 29 Jul 2014 17:23:10 +
From: Civil Global Positioning System Service Interface Committee
(CGSIC) cg...@cgls.uscg.mil
Reply-To: cg...@cgls.uscg.mil
To: cg...@cgls.uscg.mil cg...@cgls.uscg.mil
All CGSIC:
The Air Force is set to launch the 7th GPS IIF satellite from Cape
Canaveral Air Force Station in Florida.
Delta IV GPS IIF-7 Mission Overview:
Atlas V GPS IIF-7 Mission Brochure:
http://www.ulalaunch.com/uploads/docs/Mission_Booklets/AV/av_GPSIIF7_MOB.pdf
Rocket/Payload: An Atlas V 401 will launch the GPS IIF-7 mission for the
U.S. Air Force.
Date/Site/Launch Time: Friday, Aug. 1, 2014, from Space Launch Complex
(SLC)-41 at Cape Canaveral Air Force Station, Fla. The 18-minute launch
window opens at 11:23 p.m. EDT.
Viewing the Launch by Webcast: The live webcast will begin at 11:03 p.m.
EDT.
GPS IIF-7 is one of the next-generation GPS satellites, incorporating
various improvements to provide greater accuracy, increased signals, and
enhanced performance for users.
Launch Updates: To keep up to speed with updates to the launch countdown,
dial the ULA launch hotline at 1-877-852-4321 or join the conversation at
www.facebook.com/ulalaunch and twitter.com/ulalaunch; hashtag #GPSIIF7.
The Air Force Second Space Operations Squadron indicates that IIF-7,
SVN-68/PRN-3, will replace SVN-43 in the F plane slot 3 (F3). SVN-43 will
be re-phased from F3 to the F2F slot to replace SVN-26. SVN-33 will be
taken out of the operational constellation the day after SVN-68 launch and
sent to Launch, Anomaly and Disposal Operations (LADO). SVN-33 was launched
on 09 April 1996 successfully serving over 17.5 years, 10.5 years beyond its
design life, due to the diligent efforts of the men and women of the U.S.
Air Force. SVN-26 will back-up SVN-43 once it completes its re-phase
journey.
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