1	OPUS: Online Positioning User Service
2	WHAT IS OPUS?
3	http://www.ngs.noaa.gov/OPUS
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5	Many Flavors of OPUS Planned OPUS Lone $$$ receiver, hours of data, no archive OPUS-DB Lone $$$ receiver, hours of data, archive results OPUS Projects Multiple $$$ receivers, archive results OPUS Rapid Static $$$ receiver, minutes of data, no archive OPUS GIS ¢¢ receiver, minutes of data, no archive
6	Many Flavors of OPUS Planned OPUS Lone $$$ receiver, hours of data, no archive OPUS-DB Lone $$$ receiver, hours of data, archive results OPUS Projects Multiple $$$ receivers, archive results OPUS Rapid Static $$$ receiver, minutes of data, no archive OPUS GIS ¢¢ receiver, minutes of data, no archive
7	OPUS Concept
8	OPUS à Datasheet Concept
9	Data Flow
10	Why reinvent bluebooking?
11	How to Access NSRS Passive monuments Datasheets http://geodesy.noaa.gov/cgi-bin/datasheet.prl Active GPS CORS data http://geodesy.noaa.gov/CORS OPUS processing http://geodesy.noaa.gov/OPUS
12	How to Maintain NSRS Passive monuments Add observations via BLUEBOOKING Online recovery recvy_entry_www.prl Online GPS observations via OPUS-DB Active GPS Join Cooperative CORS http://geodesy.noaa.gov/CORS/Coop/
13	Simple is better!
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15	GPS data requirements
16	metadata requirements
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19	OPUS registry
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22	quality control
23	OPUS datasheet
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25	OPUS-DB benefits Data submittal fast, cheap, easy consistent, reliable Improve maintenance of NSRS Add GPS on bench marks Archive PLSS corners? Archive tidal bench marks
26	OPUS-DB limitations GPS data only PAGES software only No direct tie to adjacent monuments No redundancy Reduced oversight Idiot-proofing? Field logs are not archived
27	OPUS-DB data quality Registered, trained users 4+ hours of static GPS OPUS error checking NGS reviews each submittal Datasheet includes: “Caveat emptor” warning Datasheet includes DQA statistics Agency attribution Coordinates: first, best, average
28	Many Flavors of OPUS Planned OPUS Lone $$$ receiver, hours of data, no archive OPUS-DB Lone $$$ receiver, hours of data, archive results OPUS Projects Multiple $$$ receivers, archive results OPUS Rapid Static $$$ receiver, minutes of data, no archive OPUS GIS ¢¢ receiver, minutes of data, no archive
29	OPUS Projects
30	Many Flavors of OPUS Planned OPUS Lone $$$ receiver, hours of data, no archive OPUS-DB Lone $$$ receiver, hours of data, archive results OPUS Projects Multiple $$$ receivers, archive results OPUS Rapid Static $$$ receiver, minutes of data, no archive OPUS GIS ¢¢ receiver, minutes of data, no archive
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33	24 hr OPUS vs. 15 min OPUS-RS
34	Many Flavors of OPUS Planned OPUS Lone $$$ receiver, hours of data, no archive OPUS-DB Lone $$$ receiver, hours of data, archive results OPUS Projects Multiple $$$ receivers, archive results OPUS Rapid Static $$$ receiver, minutes of data, no archive OPUS GIS ¢¢ receiver, minutes of data, no archive
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36	OPUS-GIS output Station #: 1 File: zzyy2230.06o 2006/ 8/11 1: 1: 0 -659935.745 0.286 32 1 32.5158 0.314 2006/ 8/11 2:15: 0 -5328390.873 0.484 -97 3 37.0249 0.260 #sec: 4440 #pts: 146 3431592.952 0.401 143.0226 0.558 Station #: 2 File: zzyy2230.06o 2006/ 8/11 2:15:30 -659935.581 0.281 32 15 32.5078 0.296 2006/ 8/11 2:20: 0 -5328391.041 0.626 -97 3 37.0178 0.292 #sec: 270 #pts: 10 3431592.750 0.424 143.0372 0.692 Station #: 3 File: zzyy2230.06o 2006/ 8/11 2:33:30 -659935.568 0.344 32 33 32.5096 0.266 2006/ 8/11 2:38:30 -5328391.003 0.586 -97 3 37.0175 0.365 #sec: 300 #pts: 11 3431592.792 0.361 143.0265 0.623 Station #: 4 File: zzyy2230.06o 2006/ 8/11 2:41:30 -659935.598 0.488 32 41 32.5175 0.259 2006/ 8/11 2:52: 0 -5328390.395 0.757 -97 3 37.0215 0.431 #sec: 630 #pts: 22 3431592.697 0.428 142.4706 0.861 Station #: 5 File: zzyy2230.06o 2006/ 8/11 2:52:30 -659935.747 0.421 32 52 32.5170 0.280 2006/ 8/11 3:35: 0 -5328390.635 0.682 -97 3 37.0260 0.361 #sec: 2550 #pts: 86 3431592.843 0.425 142.7651 0.784