The NGS Data Sheet
See file dsdata.pdf for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.12.5.19
Starting Datasheet Retrieval...
1 National Geodetic Survey, Retrieval Date = FEBRUARY 19, 2025 23:55:32 EST
DF4287 ***********************************************************************
DF4287 CORS - This is a GPS Continuously Operating Reference Station.
DF4287 DESIGNATION - RODS COOP CORS ARP
DF4287 CORS_ID - RODS
DF4287 PID - DF4287
DF4287 STATE/COUNTY- TX/HARRIS
DF4287 COUNTRY - US
DF4287 USGS QUAD - TOMBALL (2019)
DF4287
DF4287 *CURRENT SURVEY CONTROL
DF4287 ______________________________________________________________________
DF4287* NAD 83(CORS) POSITION- 30 04 20.45404(N) 095 31 36.45819(W) ADJUSTED
DF4287* NAD 83(CORS) ELLIP HT- 17.921 (meters) (02/??/05) ADJUSTED
DF4287* NAD 83(CORS) EPOCH - 2002.00
DF4287 **This station is in an area of suspected vertical motion (see below).
DF4287 ______________________________________________________________________
DF4287 GEOID HEIGHT - -27.545 (meters) GEOID18
DF4287 NAD 83(CORS) X - -532,048.067 (meters) COMP
DF4287 NAD 83(CORS) Y - -5,498,576.953 (meters) COMP
DF4287 NAD 83(CORS) Z - 3,177,325.736 (meters) COMP
DF4287 HORZ ORDER - SPECIAL (CORS)
DF4287 ELLP ORDER - SPECIAL (CORS)
DF4287
DF4287.Formal positional accuracy estimates are not available for this CORS
DF4287.because its coordinates were determined in part using modeled
DF4287.velocities. Approximate one-sigma accuracies for latitude, longitude,
DF4287.and ellipsoid height can be obtained from the short-term time series.
DF4287.Additional information regarding modeled velocities is available on
DF4287.the CORS Coordinates for MYCS2 web page:
DF4287.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DF4287
DF4287.The coordinates were established by GPS observations
DF4287.and adjusted by the National Geodetic Survey in February 2005.
DF4287
DF4287.The datum tag of NAD 83(CORS) is equivalent to NAD 83(CORS96).
DF4287
DF4287.The coordinates are valid at the epoch date displayed above
DF4287.which is a decimal equivalence of Year/Month/Day.
DF4287
DF4287.Due to the release of the International GNSS Service (IGS) 2014
DF4287.realization of the International Terrestrial Reference Frame of 2014
DF4287.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DF4287.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DF4287.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DF4287.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DF4287.currently published epoch of 2010.00.
DF4287
DF4287.Additional information on MYCS2 is available at
DF4287.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DF4287
DF4287.** This station is in an area of suspected land subsidence, uplift, or
DF4287.** crustal motion. NGS recommends this and all published orthometric
DF4287.** heights in such areas be validated before use as vertical control.
DF4287.** Click here to see a list and map of nearby stations with valid
DF4287.** orthometric heights. Note: While datasheets are updated in real-time,
DF4287.** updates to archived datasheets and the SE TX Valid OH map occur
DF4287.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
DF4287.** heights as vertical control as they are deemed unreliable.
DF4287.**
DF4287.** If an established orthometric height is unavailable in the survey control
DF4287.** section, it should be considered suspect. To view suspect heights,
DF4287.** (in the superseded section), select 'Include suspect heights in vertical
DF4287.** motion areas' box from the datasheet retrieval page.
DF4287
DF4287.Significant digits in the geoid height do not necessarily reflect accuracy.
DF4287.GEOID18 height accuracy estimate available here.
DF4287
DF4287.The PID for the CORS L1 Phase Center is DF4288.
DF4287
DF4287.Click photographs - Photos may exist for this station.
DF4287
DF4287.The XYZ, and position/ellipsoidal ht. are equivalent.
DF4287
DF4287.The ellipsoidal height was determined by GPS observations
DF4287.and is referenced to NAD 83.
DF4287
DF4287. The following values were computed from the NAD 83(CORS) position.
DF4287
DF4287; North East Units Scale Factor Converg.
DF4287;SPC TXSC - 4,253,120.455 934,806.036 MT 0.99994586 +1 42 05.6
DF4287;SPC TXSC -13,953,779.36 3,066,942.80 sFT 0.99994586 +1 42 05.6
DF4287;UTM 15 - 3,329,494.521 256,433.949 MT 1.00033198 -1 16 00.4
DF4287
DF4287! - Elev Factor x Scale Factor = Combined Factor
DF4287!SPC TXSC - 0.99999719 x 0.99994586 = 0.99994305
DF4287!UTM 15 - 0.99999719 x 1.00033198 = 1.00032916
DF4287
DF4287_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RTP5643329494(NAD 83)
DF4287
DF4287 SUPERSEDED SURVEY CONTROL
DF4287
DF4287 NAD 83(CORS)- 30 04 20.45392(N) 095 31 36.45836(W) AD(2002.00) c
DF4287 ELLIP H (03/??/03) 17.984 (m) GP(2002.00) c c
DF4287
DF4287.Superseded values are not recommended for survey control.
DF4287
DF4287.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DF4287.See file dsdata.pdf to determine how the superseded data were derived.
DF4287
DF4287_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DF4287
DF4287 STATION DESCRIPTION
DF4287
DF4287'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005
DF4287'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DF4287'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DF4287'ACCESSIBLE AT THE WORLDWIDE WEB.
DF4287'https://geodesy.noaa.gov/CORS/data.shtml
DF4287'https://geodesy.noaa.gov/CORS
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