Positioning NYSNet with. The National Spatial Reference System (NSRS)

Transcription

1 Positioning NYSNet with The National Spatial Reference System (NSRS) January

2 Positioning NYSNet 2 1) National Spatial Reference System (NSRS) 5 Minutes NGS CORS NGS Guidelines for RTN s 2) Positioning 5 Minutes 3) Monitoring 10 Minutes RT Positioning Non NGS CORS PP Positioning Non NGS CORS Single Base Monitoring NYSNet Daily Network adjustment Monitoring NYSNet Weekly NGS OPUS 4) OPUS Projects 10 Minutes OPUS P Draft documentation RTN Positioning Positioning NYSNet with OPUS Projects Position Monitoring Results 5) GNSS 30 Minutes NAVD88 Heights Network RTK (NRTK) GNSS status 5) Access 30 Minutes Network Status Rover Status User Accounts Notices 6) Questions

3 National Spatial Reference System (NSRS) 3

4 NGS CORS 4

5 NYSNet Tied to NSRS 5

6 NGS Guidelines for RTN s 6

7 NGS Guidelines for RTN s 7

8 Positioning Non NGS CORS 8 Originally ( ) 10, 24 hr OPUS solutions NAD83 (CORS96) EPOCH 2002 Currently (2012 Present) 10, 24 hr, 30 second observations in a least squares adjustment. NAD83 (2011) EPOCH 2010 Future OPUS Projects

9 Monitoring Non NGS CORS-RT Single Base 9

10 Monitoring Non NGS CORS - PP 10

11 Monitoring NYSNet-Weekly NGS OPUS 11

12 Monitoring NYSNet-Daily Network adjustment 12

13 Monitoring NYSNet-Daily Network adjustment seasonal change 13 January 2016

14 Monitoring NYSNet-Daily Network adjustment roofing contractors 14 January 2016

15 OPUS P Draft Documentation RTN Positioning 15

16 OPUS P Draft Documentation RTN Positioning 16

17 Monitoring NYSNet-Monthly OPUS Projects 17

18 OPUS P Upload Observations 18

19 OPUS P Check OPUS Statistics 19

20 OPUS P Upload 5 sessions 20

21 OPUS P Processing Parameters 21

22 OPUS P Minimally Constrained Adjustment 22

23 OPUS P Fully Constrained Adjustment 23

24 Monitoring NYSNet-Monthly OPUS Projects 24

25 Positioning NYSNet - position 25

26 Positioning NYSNet - height 26

27 Monitoring Non NGS CORS 27 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 NYAB AVG NYBK PUB NYBK AVG NYHF PUB NYHF AVG NYHM PUB NYHM AVG NYJM PUB NYJM AVG NYMO PUB NYMO AVG NYNS PUB NYNS AVG NYOB PUB NYOB AVG NYPR PUB NYPR AVG NYWS PUB NYWS AVG

28 Posting Monthly Opus Project result comparison to published 28

29 Posting Monthly Opus Project result comparison to published 29

30 Posting Monthly Opus Project result comparison to published 30

31 Considering Updating Non NGS CORS positions to average of 3 monthly Opus Projects 31

32 NAVD88 From CORS Using GEOID12a 32 H=h-N Ortho Ht = Ellipsoid Ht GEOID Ht Ortho Ht = (-29.25) Ortho Ht = Ortho Ht = [GPS/GEOID 12a] Leveled Ht = Difference = 2.8 cm s HI GPS Vector GEOID12a Leveled Ellipsoid GEOID

33 GEOID12b - NGSIDB 33 April 2015 NGS HTMOD Partner Mtg 33

34 GEOID12b - NGSIDB FBN Survey included BM s Leveled to Most HARN Leveled to Most CORS antennas

35 GPS BM OPUS DB =.028 m

36 Network RTK(NRTK) 36 Atmosphere 10k >10k 1cm +1ppm Reference Station Rover Rover 36

37 GNSS Status 37

38 User Accounts 38

39 Notices 39

40 User Profile 40

41 Site Status 41

42 Site Status 42

43 Rover Status 43

44 RTN Status 44

45 NOVA Maps 45

46 Thank you for the help 46 Leigh Meyer NYSDOT Transportation Analyst Patrick Magee NYSDOT Land Surveyor Dan Martin NGS Northeast Geodetic Advisor Claude St Pierre Leica Geosystems Henri Ayers Retired, Leica Geosystems NGS OPUS Team NGS CORS Team Many others since 2006 (518)

47 Learning Assesment NYSNet Positioning Assessment 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. Gallileo d. CORS 3.) What method does NGS prefer for determining positional coordinates of RTN reference stations : a. OPUS b. Network Adjustment c. Triangulation d. Traversing 4.) CORS constrained in a least squares adjustment should be CORS that a. have good time series plots b. have computed velocities c. have existed more than 2.5 years d. 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