positioning nysnet with the national spatial reference system … · 2018-04-03 · positioning...
TRANSCRIPT
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1
Positioning NYSNet with
The National Spatial Reference System (NSRS)
January 2017
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2Positioning NYSNet
1) National Spatial Reference System (NSRS) 5 MinutesNGS CORSNGS Guidelines for RTN’s
2) Positioning 5 Minutes
3) Monitoring 10 MinutesRT Positioning Non NGS CORS PP Positioning Non NGS CORS Single BaseMonitoring NYSNet Daily Network adjustmentMonitoring NYSNet Weekly NGS OPUS
4) OPUS Projects 10 MinutesOPUS P Draft documentation RTN PositioningPositioning NYSNet with OPUS ProjectsPosition Monitoring Results
5) GNSS 30 MinutesNAVD88 HeightsNetwork RTK (NRTK)GNSS status
5) Access 30 MinutesNetwork StatusRover StatusUser AccountsNotices
6) Questions
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3National Spatial Reference System (NSRS)
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4NGS CORS
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5NYSNet Tied to NSRS
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6NGS Guidelines for RTN’s
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7NGS Guidelines for RTN’s
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8Positioning Non NGS CORS
Originally (2007-2012)10, 24 hr OPUS solutions NAD83 (CORS96) EPOCH 2002
Future – OPUS Projects
Currently (2012 –Present) – 10, 24 hr, 30 second observations in a least squares adjustment.NAD83 (2011) EPOCH 2010
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9Monitoring Non NGS CORS-RT Single Base
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10Monitoring Non NGS CORS - PP
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11Monitoring NYSNet-Weekly NGS OPUS
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12Monitoring NYSNet-Daily Network adjustment
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13Monitoring NYSNet-Daily Network adjustment – seasonal change
January 2016
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14Monitoring NYSNet-Daily Network adjustment – roofing contractors
January 2016
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15OPUS P Draft Documentation – RTN Positioning
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16OPUS P Draft Documentation – RTN Positioning
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17Monitoring NYSNet-Monthly OPUS Projects
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18OPUS P Upload Observations
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19OPUS P Check OPUS Statistics
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20OPUS P Upload 5 sessions
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21OPUS P Processing Parameters
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22OPUS P Minimally Constrained Adjustment
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23OPUS P Fully Constrained Adjustment
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24Monitoring NYSNet-Monthly OPUS Projects
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25Positioning NYSNet - position
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26Positioning NYSNet - height
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27Monitoring Non NGS CORS
Site_ID Month Lat_Deg Lat_Min Lat_Sec SPC_North(m) Lon_Deg Lon_Min Lon_Sec SPC_East(m) Ellipsoid_Hgt Lat_Delta(cm) Lon_Delta(cm) Hgt_Delta(cm)
NYAB PUB 42 42 48.87321 431082.978 73 48 58.50162 206006.378 90.067
NYAB AVG 42 42 48.87314 431082.976 73 48 58.50143 206006.382 90.071 -0.233 0.433 0.400
NYBK PUB 40 42 12.32084 59604.656 73 58 44.25877 301778.047 -15.219
NYBK AVG 40 42 12.32086 59604.657 73 58 44.25925 301778.036 -15.224 0.067 -1.133 -0.500
NYHF PUB 43 19 3.62761 498381.889 73 34 7.36929 225538.250 64.573
NYHF AVG 43 19 3.62763 498381.889 73 34 7.36937 225538.249 64.584 0.033 -0.133 1.100
NYHM PUB 43 1 6.29900 464836.985 74 59 45.08351 109583.462 95.282
NYHM AVG 43 1 6.29905 464836.987 74 59 45.08379 109583.456 95.283 0.167 -0.567 0.100
NYJM PUB 40 39 46.05512 55110.609 73 48 25.48850 316313.779 -12.589
NYJM AVG 40 39 46.05517 55110.611 73 48 25.48868 316313.774 -12.595 0.167 -0.467 -0.567
NYMO PUB 41 38 45.60379 312298.089 74 39 44.18092 136482.695 400.175
NYMO AVG 41 38 45.60380 312298.090 74 39 44.18087 136482.696 400.165 0.067 0.067 -1.000
NYNS PUB 43 7 7.74858 346463.991 76 8 29.77296 285947.365 98.589
NYNS AVG 43 7 7.74852 346463.989 76 8 29.77281 285947.368 98.584 -0.167 0.300 -0.500
NYOB PUB 40 33 5.55497 42745.258 74 6 59.66710 290125.753 -11.917
NYOB AVG 40 33 5.55496 42745.258 74 6 59.66697 290125.756 -11.931 -0.033 0.300 -1.400
NYPR PUB 40 38 16.23989 52329.684 74 7 29.30179 289442.140 -15.718
NYPR AVG 40 38 16.24004 52329.689 74 7 29.30179 289442.140 -15.726 0.500 0.033 -0.833
NYWS PUB 42 42 3.12644 300043.014 78 7 33.89521 387462.764 314.439
NYWS AVG 42 42 3.12640 300043.013 78 7 33.89509 387462.767 314.431 -0.067 0.267 -0.767
-1.133
-1.000
-1.400
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28Posting Monthly Opus Project result comparison to published
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29Posting Monthly Opus Project result comparison to published
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30Posting Monthly Opus Project result comparison to published
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31Considering Updating Non NGS CORS positions to average of 3 monthly Opus Projects
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32
Ellipsoid
GEOID-29.25
513.123
GPS Vector
HI
H=h-NOrtho Ht = Ellipsoid Ht – GEOID HtOrtho Ht = 513.123 – (-29.25)Ortho Ht = 513.123 +29.25Ortho Ht = 542.373 [GPS/GEOID 12a]Leveled Ht = 542.347Difference = 2.8 cm’s
•NAVD88 From CORS Using GEOID12a
Difference = 2.8 cm’s
542.373 GEOID12a
542.347Leveled
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33
April 2015 NGS HTMOD Partner Mtg 33
GEOID12b - NGSIDB
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34GEOID12b - NGSIDB
2001 FBN Survey included BM’sLeveled to Most HARNLeveled to Most CORS antennas
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35GPS BM OPUS DB
542.375 – 542.347 = .028 m
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36Network RTK(NRTK)
36
Atmosphere
Reference Station
Rover
10k >10k
1cm +1ppm
Rover
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37GNSS Status
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38User Accounts
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39Notices
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40User Profile
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41Site Status
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42Site Status
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43Rover Status
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44RTN Status
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45NOVA Maps
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46Thank you for the help
Leigh Meyer – NYSDOT Transportation AnalystPatrick Magee – NYSDOT Land SurveyorDan Martin – NGS Northeast Geodetic AdvisorClaude St Pierre– Leica GeosystemsHenri Ayers – Retired, Leica GeosystemsNGS OPUS TeamNGS CORS TeamMany others since 2006
[email protected] (518) 485-1385
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47Learning Assesment
2016 NYSNet PositioningAssessment of Learning Questions: 1.) Most of the NYSNet reference stations are currently positioned by?
a. NYS Association of Professional Land Surveyors b. National Geodetic Survey c. National Geographic d. United States Geographic Survey
2.) Surveys can be referenced to the NSRS by connecting to a. State Plane Coordinate System b. GLONASS c. Gallileod. CORS
3.) What method does NGS prefer for determining positional coordinates of RTN reference stations :
a. OPUSb. Network Adjustmentc. Triangulationd. Traversing
4.) CORS constrained in a least squares adjustment should be CORS that a. have good time series plotsb. have computed velocitiesc. have existed more than 2.5 yearsd. all of the above
5.) OPUS is what type of positioning a. Average of single base positioning b. GPS/GLONASS positioning c. Network RTK positioning d. Network Adjustment Positioning