opus projects (beta) status and plans improved solutions for simultaneous or repeated observations...
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OPUS Projects (beta) status and plans
Improved solutions for simultaneous or repeated observationsharvest data from multiple observersshare upload & processing taskscustomize your processing using PAGESsimple data quality analysisimprove survey accuracyconstrain to local networkspublishing support (limited)
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options:projects & publishing
yoursolution
mark description
IGS & NGS base stations & site information filesIGS antenna calibrations & satellite orbits & reference framesUNAVCO teqc converterPAGES baseline processor var. geophysical modelsNGS geodetic toolkit
yourGPS data
standard geodetic data
OPUSOnline Positioning User Service
JGE 2013 v1free, fast, easy, consistent coordinates
geodesy.noaa.gov/OPUS
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Static: OPUS determines your position with a differential GPS static solution, using hours of data.
This process is repeated 4x from other CORS.
baseline 1
baseline 3
baseline 4
baseline 2
baseline 5
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OPUS-projects: first, run OPUS to harvest all project data
OPUS automatically forms sessions from simultaneously observed marks, enabling multi-baseline processing and adjustment of redundant observations.
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Why complicate OPUS?
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solution HATFIELD solution MCCOY
OPUS Session Adjustment
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solution HATFIELD solution MCCOY
Why complicate OPUS?
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OPUS Session Adjustment
session 001
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Why complicate OPUS?
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OPUS Session Adjustment
session 002
session N
solution HATFIELD solution MCCOYsession 001
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Why complicate OPUS?
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network adjustment
OPUS Session Adjustment
session 002
session N
solution HATFIELD solution MCCOYsession 001
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What’s all that really mean for me?OPUS solutions = pretty good, but each treated as
independent and assumes “perfect” CORS.Sessions = simultaneously-observed marks processed
together in sessions increases consistency. Adjustments = interlinking sessions through network
adjustments increases accuracy.
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Limitations?• Internet is required.
• Training is required for project managers.
• OPUS Static data restrictions apply.Dual-frequency static, 2 - 48 hours duration
• Project size.1 – 100 marks per session< a few hundred data files total
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OPUS Projects TrainingBecause of its increased complexity, training is required to be an OPUS Projects manager. These workshops are usually two day in length and small so that there is ample time forone-on-one interaction with the instructor.
Check the NGS training center schedule for upcoming workshops run by NGS.
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User guidein finaldevelopment
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The OPUS upload page is the access point for all things OPUS.
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