[The USNO AOA TurboRogue receiver and the AMC2 AOA SNR-12 ACT receiver
experienced the data offload problems reported below for many AOA
receivers on 25 April 1999 at 13:00:30 UTC. This event was apparently
precipitated by GPS system tests using satellite PRN27. Data for 25 and
26 April are incomplete for both stations.]
From igscb@igscb.jpl.nasa.gov Mon Apr 26 21:35:53 EDT 1999
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(1.39.111.2/16.2) id AA288534700; Mon, 26 Apr 1999 17:58:20 -0700
Date: Mon, 26 Apr 1999 17:58:20 -0700
To: IGS Mail Recipients
From: IGS Mail Service
Reply-To: IGS Mail Administrator
Errors-To: IGS Mail Administrator
Sender: IGS Mail Administrator
Subject: No 2249: SV tests/TR tracking
Status: RO
******************************************************************************
IGS Electronic Mail Mon Apr 26 17:58:19 PDT 1999 Message Number 2249
******************************************************************************
Author: Angelyn Moore
Subject: SV tests/TR tracking
Dear Colleagues,
I have spoken with Allen Osborne Associates this afternoon, and forwarded
them the IGSMails with these experiences on 4/25 at about 1300UT.
They will get back to me with any preliminary findings on Tuesday 4/26.
Best regards,
Angie
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Angelyn W. Moore, Ph.D. Deputy Director, IGS Central Bureau
JPL/Caltech Angelyn.W.Moore@jpl.nasa.gov
4800 Oak Grove Dr. MS 238-540 voice: +1 818 354 5434
Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393 6686
[Mailed From: "Angelyn W. Moore" ]
From igscb@igscb.jpl.nasa.gov Tue Apr 27 11:08:38 EDT 1999
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(1.39.111.2/16.2) id AA225512951; Tue, 27 Apr 1999 07:22:31 -0700
Date: Tue, 27 Apr 1999 07:22:31 -0700
To: IGS Mail Recipients
From: IGS Mail Service
Reply-To: IGS Mail Administrator
Errors-To: IGS Mail Administrator
Sender: IGS Mail Administrator
Subject: No 2251: Desperate preventative measure for TRs during PRN27 tests
Status: RO
******************************************************************************
IGS Electronic Mail Tue Apr 27 7:22:30 PDT 1999 Message Number 2251
******************************************************************************
Author: Angelyn Moore
Subject: Desperate preventative measure for TRs during PRN27 tests
Dear Colleagues,
Until we have some answers for what happened to the world's TurboRogues
on Apr 25, you may wish to prevent other occurrences by disabling
PRN 27 during the tests if you feel your receiver and offload techniques
may be subject to the "NO DATA FOUND!" (and subsequent need for
flashcard erase) problem.
As a reminder, this may be accomplished with "disable -s 27" on
the TurboRogues.
The remaining scheduled tests are d117 (27 Apr) 0700-2100Z, and
d118 (28 Apr) 0700-2100Z. As I write this we are already into the
first period.
The "enable -s 27" command will re-enable it after all is clear.
Best regards,
Angie
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Angelyn W. Moore, Ph.D. Deputy Director, IGS Central
Bureau
JPL/Caltech
Angelyn.W.Moore@jpl.nasa.gov
4800 Oak Grove Dr. MS 238-540 voice: +1 818 354
5434
Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393
6686
[Mailed From: "Angelyn W. Moore" ]