Delivered-To: igsmail@igscb.jpl.nasa.gov
From: Jim Ray "(NGS" 301-713-2850 "x112)" <jimr@ngs.noaa.gov>
Message-Id: <200509132027.QAA11878@ness.ngs.noaa.gov>
Subject: [IGSMAIL-5210]: 1-s versus 5-s data ?
To: igsmail@igscb.jpl.nasa.gov
Date: Tue, 13 Sep 2005 16:27:24 -0400 (EDT)
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IGS Electronic Mail      13 Sep 13:28:04 PDT 2005      Message Number 5210
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Author: Jim Ray

NGS is in the process of installing a new GPS station (BRFT) at Fortaleza
to replace the old station (FORT).  Data will be reported back in hourly
files as well as daily 24-hr files.  (We hope to implement real-time data
transfer too.)  For the hourly files, Miranda Chin has tested hourly
transfers with 1-s sampling, which seems to work fine so far.  But we
are not sure that the Internet connection can sustain such a load
continuously.

Can anybody provide a strong rationale to prefer either 1-s or 5-s
sampling for the near-real-time hourly files?  For instance, would
ionospheric science or scintillation studies be enhanced using 1-s
samples from this equatorial site?

Any advice you can provide would be appreciated.  Thanks,
--Jim