NYSNet CORS RTN Update 2018-f · 2018. 4. 3. · NYSNet CORS/RTN 2 Stations - 15 Minutes Stations,...
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1 NYSNet CORS/RTN NYSAPLS Conference January 2018
Transcript of NYSNet CORS RTN Update 2018-f · 2018. 4. 3. · NYSNet CORS/RTN 2 Stations - 15 Minutes Stations,...
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NYSNet CORS/RTN
NYSAPLS Conference January 2018
2NYSNet CORS/RTN
Stations - 15 MinutesStations, NYSNet/NGS, Positions, Heights, Consistency w/NSRS
GNSS – 20 MinutesGPS/GLONASS, GPS L5, Galileo, Future
RT/RINEX - 20 Minutes Network RTK, NOVA Maps, Live Status, RINEX, RT Mount Points, MSM, Notices, Future
Heights - 20 MinutesGEOID, Hybrid GEOID, Ellipsoid, Orthometric, GPS/BM’s, GEOID 99, 03, 12b, GPS/BM’s Residuals, Future
2022 Datums – 10 MinutesTerrestrial, Geopotential, change, planning
Questions/Review – 5 Minutes
3Stations
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NYSNet Only CORS
NYSNet vs National CORS
5NYSNet vs National CORS
6Positioning NYSNet- OPUS Projects
7Positions
8Ellipsoid Heights
9Consistency with NSRS
10Entire Network Tracking GPS and GLONASS (GG)
11GPS/GLONASS (GG)
12GPS L5
13Most of network tracks L5
14Tracking GPS L5
15Galileohttps://www.gsc-europa.eu/system-status/Constellation-Information
16Most stations track Galileo, others need hardware upgrade.
17Tracking Galileo
18GNSS Launches
http://gpsworld.com/resources/upcoming-gnss-satellite-launches/
19Network RTK(NRTK)
Atmosphere
Reference Station
Rover
10k >10k
1cm +1ppm
Rover
20RTN Status
21RTN Status NOVA Maps – Global RMS
22RTN Status–Ionosphere Single Base RTK
23RTN Status – Ionosphere Network RTK (NRTK)
24Site Status
25Live Site Status
26Live Rover Status
27RINEX Data
Xpos server in future. GNSS processing apps might access xposserver directly.
28RT Data – Mount Points
Network RTK with GGG coming.net_msm_imaxNeed software upgrade.
29Future Updates
RINEX Format• Will be moving to RINEX Version 3, to include GPS L5 and Galileo.
RT Format• Mount Points
near_msm to include RTCM multi signal messages.near_cmrpnet_msm_imax to include NRTK rtcm msm.net_cmrp_imax
• all of our single sites will be changed from RTCM 3 to MSM.
• Will be phasing out all older versions of RTCM, MAX, and GPUID
Positions• Considering updating the non NGS station positions to OPUS projects solution.• Considering using IGS coordinates, in current epoch, computed using OPUS projects, for
NRTK internal processing. To better compute the estimate of NRTK parameters. RINEX and RT products will still provide NAD83 (2011) EPOCH 2010 coordinates…..until 2002?
30Notices
31GEOID Models
32Hybrid GEOID Models
33GEOID12b – GPS/BM’s
GEOID03GEOID09GEOID12b
34Compare GPS/GEOID12 to Leveled NAVD88 Residuals
35Residual Calculation
-.033 =105.735 + (-31,337) – 74.431
36Plot GPS/GEOID12 to Leveled NAVD88 Residuals
37Y441 DS GPS/GEOID12 to Leveled NAVD88 Residual
-.033 =105.735 + (-31,337) – 74.431
38Y441
39NAVD88 Leveling
40HARN Leveling
41stations network and local accuracies.
42Strategically Occupy GPS BM’s to support NGS GPS/BM program
43Results – Least Squares Network Adjustment
44Results Comparison
-31.337 G12b
105.768 GPS/G12b
??? -31.383
74.431 DS 74.352 DOT17
105.735 NAVD88 -.033
-.079
105.735 NAVD88
-.033 =105.735 + (-31,337) – 74.431
45Results OPUS Projects
47GEOID 12a Accuracy
482022 Datums
492022 Datums
502022 Datums
512022 Planning
