[AZ-Observing] Re: Cherry Road Site - Lat and Long?
- From: Victor Herrero <hubbleed@xxxxxxxxx>
- To: azObserving <az-observing@xxxxxxxxxxxxx>
- Date: Wed, 30 Jun 2010 16:57:03 -0700
Tim,
Re: However, since the values (decimal and deg/min/sec) used were based on a
specific GPS value physically attained at the site, would there have been a
difference between the location via the GPS coordinates and the site's WGS84
values
It depends on the datum you had in your GPS, at the time. You can choose
from a long list.
The default value is normally WGS84 (World Geodetic System 1984), and I
suspect your coordinates are WGS84.
Check your GPS. If Cherry II is still stored as a landmark, you can convert
the coords to any datum in the list.
In old USGS topos the datum may be NAD27 CONUS (North American Datum 1927
Continental US).
The difference may amount to a few hundred feet in lat long.
I think this might be significant if we wanted to make sure an observing
site is inside public land, and the site is near private property.
Thank you for your question.
Victor
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
