Which would you rather see?
“all these here big numbers are _____ State Plain(sic) Coordinates.”
No Datum, Epoch, Realization, or even Units... nadda! No indication of HOW, From WHERE, under what circumstances, or what techniques were used to generate these “big numbers.” WORTHLESS...plain and simple!
Or a plat, ROS, Report, or description that actually tells you something about the “coordinates,” and how they were determined?
Linear Units U.S. Survey Feet
Projection Transverse Mercator
Central Meridian xxxºxx' xx.00000” West
Origin Latitude yyºyy' yy.00000” North
Scale Reduction 1.000 xxx xxx Unitless
False Northing nnn,nnn.nnn US Survey Feet
False Easting ee,eee.eee US Survey Feet
Design Elevation u,uuu.uu NAVD88 (feet)
Average Geoid (N) -NN.N meters
Primary Control Stations (Point Numbers 1 & 2) where simultaneously observed on July 5th and again on July 7th for a minimum of four hours on each day. These Static Observations were processed to Plate Boundary Observatory (PBO) Stations P007, p086, & P105 using the NGS OPUS_S program, and refined based on the NGS 60 Day Times data prior to adjustment in a Least Squares Network Adjustment, holding the the following ITRF2000 Epoch 2010.xxxx Coordinate estimates as partial fixities:
P007 X... Y... Z... rmsX x.xxxx rmsY y.yyyy rmsZ z.zzzz
P086 X... Y... Z... rmsX x.xxxx rmsY y.yyyy rmsZ z.zzzz
P105 X... Y... Z... rmsX x.xxxx rmsY y.yyyy rmsZ z.zzzz
HTDP 3.0 was utilized to transform the adjusted ITRF2000 Epoch 2010.xxxx Coordinate estimates to NAD83(CORS96) Epoch 2002.0000.
NAD83(CORS96) Epoch 2002.0000 Coordinates estimates are as follows:
Pt.No.1 SE07-GLO X... Y... Z... rmsX x.xxxx rmsY y.yyyy rmsZ z.zzzz
Pt.No.2 E170-NGS X... Y... Z... rmsX x.xxxx rmsY y.yyyy rmsZ z.zzzz
All Stations, Corners, and Monuments shown hereon where observed by Static, Real-Time-Kinematic (RTK), or Conventional Total Station techniques, and constrained to the Primary Control Stations above.
Now that's just a quick-n-dirty example, but something along those lines would really tell you something (and take only a few extra minutes to generate).
The ONLY part of the above blurb that would be UNIQUE to an LDP (or other “user defined coordinate system”), or ADDITIONAL compared to using SPC or UTM, would be the portion in red. In fact, only the first six lines of that are REALLY important.
I would submit that the blue portion SHOULD be a bare minimum for SPC or UTM (when using OPUS). A simple re-write of the first paragraph (in blue) would cover usage of the NGS Passive Network.
Dats my 2 bits,