[teqc] C2 output from versions 4 Apr 2005 and later

Lou Estey lou at unavco.org
Thu Jul 7 13:23:11 MDT 2005

Dear all,

I noticed a few days ago that development versions of teqc
from 4 Apr 2005 and later may contain a "C2" observable in
RINEX translated from certain native formats if you are not
specifying the observable list with -O.obs.  (A notable case
is default translation of Trimble's RT17 stream format.)  Adding
C2 is in anticipation of having L2C, starting with Block IIR-M,
and tracking it, e.g. with Trimble's R7 and NetRS.  Since
there is no L2C-capable GPS SV in orbit at the moment, the
data field for C2 will be blank in any such teqc-produced RINEX.

I'll be working on how to eliminate this as a "default" observable
later this summer, but in the meantime if you see a "C2" in
the RINEX obs list of observables, just use -O.obs <obs_list> to
remove it, where <obs_list> is the usual list of observables
that you want.


Louis H. Estey, Ph.D.              office:  [+001] 303-381-7456
UNAVCO, 6350 Nautilus Drive           FAX:  [+001] 303-381-7451
Boulder, CO  80301-5554            e-mail:  lou  unavco.org
    WWW:  http://www.unavco.org   http://jules.unavco.org

"If the universe is the answer, what is the question?"
                                                -- Leon Lederman

p.s. I'll be out of the office until 25 July, so if you have an
teqc questions between now and then please just email the teqc
forum (this list) for help.

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