OPUS Projects (beta) status and plans

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OPUS Projects (beta) status and plans
Improved solutions for simultaneous or repeated
observations harvest data from multiple
observers share upload processing
tasks customize your processing using
PAGES simple data quality analysis improve survey
accuracy constrain to local networks publishing
support (limited)
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yourGPS data
IGS NGS base stations site
information filesIGS antenna calibrations
satellite orbits reference frames UNAVCO
teqc converterPAGES baseline processor var.
geophysical models NGS geodetic toolkit
standard geodetic data
yoursolution
options projects publishing
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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 5
baseline 4
baseline 3
baseline 1
baseline 2
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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?
CORS1
CORS2
CORS3
CORS4
CORS5
solution HATFIELD
solution MCCOY
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Why complicate OPUS?
CORS1
CORS2
CORS3
CORS4
CORS5
solution HATFIELD
solution MCCOY
session 001
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Why complicate OPUS?
CORS1
CORS2
CORS3
CORS4
CORS5
solution HATFIELD
solution MCCOY
session 001
session 002
session N
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Why complicate OPUS?
CORS1
CORS2
CORS3
CORS4
CORS5
solution HATFIELD
solution MCCOY
session 001
session 002
session N
network adjustment
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Do we really need another OPUS flavor?

• The practical answer is probably yes.The NGS,
  its partners and stakeholders have a history of
  projects whose specifications cant be entirely
  supported by OPUS.
• The academic answer is probably yes.As good as
  OPUS does, and that is very good indeed,
  sacrificing simplicity for flexibility can
  improve results.

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Whats 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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How much better?

• Describe statistical variance of
• original OPUS solutions
• vs session solutions
• vs final adjusted positions
• aka, how many cm can Projects buy me, on average?

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Are There Any Other Advantages?

• Faster, simpler setup
• A projects data are consolidated in on-line
  storage.
• Initial data quality assessments provided on
  upload.
• The data are organized automatically.
• Faster, simpler work flow
• Project specific preferences and the on-line GUI
  simplifies running PAGES.
• Software and models are always up-to-date.
• The quality of the processing results is visually
  indicated in maps, plots and tables.
• Many useful files are created automatically.

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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
• lt a few hundred data files total

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OPUS Projects Training
Because 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.
2013-08-14
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User guidein finaldevelopment
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The OPUS upload page is the access point for all
things OPUS.
2013-08-14