So this afternoon I was out setting three boundary markers in the trees at the far side of the pasture seen behind the GPS receiver in the photo below.
It was near 5:00PM when I heard the sound of a diesel locomotive very near. There was a rail line about 900 ft. North of where I was, but this was very close by and from the opposite direction, which didn't make any particular sense.
I looked around and saw nothing, but the locomotive sound was louder and closer. Then I saw the first white truck approaching. The sound got louder as it crawled along the fence line and the two others that I now saw behind it followed.
Sometime about then I realized they were Vibroseis trucks and the locomotive sounds were coming from the extra-heavy-duty Diesel engines they were carrying to drive the shakers on their beds. Just about the time I was wondering how the setup of the total station would fare, the trio stopped and went seismic. It was like a trip to California.
Kent-
Thank you for revealing another piece of equipment seen in The Republic.
Does it have significant application in 'settling' any questions about the "0.04' questions that may arise ?
Cheers,
Derek
More Dangerous than NASCAR for Spectators
Put two locomotives in a pasture and have them crash together for the spectators amusement AND DEATH.
Was it like a Mad Dog Cyclone...
[flash width=420 height=315] http://www.youtube.com/v/_KwvQ5lfA2k?version=3&hl=en_US&rel=0 [/flash]
😉
Dougie
Dang...
I was hoping for a painting of an abandoned locomotive in a pasture...:-(
You sure get out in the middle of nowhere. B-)
This one is almost in a pasture
Dang...
> You sure get out in the middle of nowhere.
Middle of nowhere? That's pretty in the middle of everything, right between Houston and San Antonio, surrounded by Czechs and Germans.
A 4000ssi in the Pasture
> A 4000ssi sighting is a treat. Fine instruments.
Yes, here's a diagram showing the scatter of five different solutions for the control point over which the antenna is set up. The solutions were from separate 45-minute sessions processed via OPUS-RS
The magnitudes of the 2D residuals:
[pre]
GPS Vector Residual Summary
(FeetUS)
From To N E
1Day054a 1 0.008 0.001
1Day054b 1 0.003 -0.005
1Day054c 1 0.002 0.013
1Day142a 1 0.013 0.002
1Day142b 1 -0.027 -0.021
[/pre]
Day142 was in 2012 and Day054 was yesterday. So a bit more than nine months separated them.
A 4000ssi in the Pasture
> I am always tempted to break out the TI4100 just for grins sometime.
Well, if you can get an NAD83 position with an uncertainty of about 2mm (sigma) in N and E components using it as the observations logged with the 4000ssi receiver did, please post a report. :>
This one is out to pasture
