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 20, 2025 03:13:22 EST
DF4379 ***********************************************************************
DF4379 CORS - This is a GPS Continuously Operating Reference Station.
DF4379 DESIGNATION - HOUSTON RRP2 CORS ARP
DF4379 CORS_ID - TXHU
DF4379 PID - DF4379
DF4379 STATE/COUNTY- TX/HARRIS
DF4379 COUNTRY - US
DF4379 USGS QUAD - HOUSTON HEIGHTS (2019)
DF4379
DF4379 *CURRENT SURVEY CONTROL
DF4379 ______________________________________________________________________
DF4379* NAD 83(2011) POSITION- 29 46 45.89159(N) 095 25 58.74128(W) ADJUSTED
DF4379* NAD 83(2011) ELLIP HT- 13.223 (meters) (06/??/19) ADJUSTED
DF4379* NAD 83(2011) EPOCH - 2010.00
DF4379 **This station is in an area of suspected vertical motion (see below).
DF4379 ______________________________________________________________________
DF4379 GEOID HEIGHT - -27.378 (meters) GEOID18
DF4379 NAD 83(2011) X - -524,577.973 (meters) COMP
DF4379 NAD 83(2011) Y - -5,515,563.548 (meters) COMP
DF4379 NAD 83(2011) Z - 3,149,180.723 (meters) COMP
DF4379
DF4379 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DF4379 Standards:
DF4379 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DF4379 Horiz Ellip SD_N SD_E SD_h (unitless)
DF4379 -------------------------------------------------------------------
DF4379 NETWORK 0.20 0.52 0.06 0.10 0.27 0.07786000
DF4379 -------------------------------------------------------------------
DF4379
DF4379.The coordinates were established by GPS observations
DF4379.and adjusted by the National Geodetic Survey in June 2019.
DF4379
DF4379.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DF4379.been affixed to the stable North American Tectonic Plate.
DF4379
DF4379.The coordinates are valid at the epoch date displayed above
DF4379.which is a decimal equivalence of Year/Month/Day.
DF4379
DF4379.Due to the release of the International GNSS Service (IGS) 2014
DF4379.realization of the International Terrestrial Reference Frame of 2014
DF4379.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DF4379.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DF4379.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DF4379.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DF4379.currently published epoch of 2010.00.
DF4379
DF4379.Additional information on MYCS2 is available at
DF4379.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DF4379
DF4379.** This station is in an area of suspected land subsidence, uplift, or
DF4379.** crustal motion. NGS recommends this and all published orthometric
DF4379.** heights in such areas be validated before use as vertical control.
DF4379.** Click here to see a list and map of nearby stations with valid
DF4379.** orthometric heights. Note: While datasheets are updated in real-time,
DF4379.** updates to archived datasheets and the SE TX Valid OH map occur
DF4379.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
DF4379.** heights as vertical control as they are deemed unreliable.
DF4379.**
DF4379.** If an established orthometric height is unavailable in the survey control
DF4379.** section, it should be considered suspect. To view suspect heights,
DF4379.** (in the superseded section), select 'Include suspect heights in vertical
DF4379.** motion areas' box from the datasheet retrieval page.
DF4379
DF4379.Significant digits in the geoid height do not necessarily reflect accuracy.
DF4379.GEOID18 height accuracy estimate available here.
DF4379
DF4379.The PID for the CORS L1 Phase Center is DF4380.
DF4379
DF4379.Click photographs - Photos may exist for this station.
DF4379
DF4379.The XYZ, and position/ellipsoidal ht. are equivalent.
DF4379
DF4379.The ellipsoidal height was determined by GPS observations
DF4379.and is referenced to NAD 83.
DF4379
DF4379. The following values were computed from the NAD 83(2011) position.
DF4379
DF4379; North East Units Scale Factor Converg.
DF4379;SPC TXSC - 4,220,938.338 944,836.445 MT 0.99989323 +1 44 51.1
DF4379;SPC TXSC -13,848,195.20 3,099,850.90 sFT 0.99989323 +1 44 51.1
DF4379;UTM 15 - 3,296,824.311 264,791.057 MT 1.00028264 -1 12 32.1
DF4379
DF4379! - Elev Factor x Scale Factor = Combined Factor
DF4379!SPC TXSC - 0.99999792 x 0.99989323 = 0.99989115
DF4379!UTM 15 - 0.99999792 x 1.00028264 = 1.00028056
DF4379
DF4379_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RTN6479196824(NAD 83)
DF4379
DF4379 SUPERSEDED SURVEY CONTROL
DF4379
DF4379 NAD 83(2011)- 29 46 45.89150(N) 095 25 58.74133(W) AD(2010.00) c
DF4379 ELLIP H (08/??/11) 13.197 (m) GP(2010.00) c c
DF4379 NAD 83(CORS)- 29 46 45.89127(N) 095 25 58.74134(W) AD(2002.00) c
DF4379 ELLIP H (08/??/07) 13.227 (m) GP(2002.00) c c
DF4379 NAD 83(CORS)- 29 46 45.89147(N) 095 25 58.74137(W) AD(2002.00) c
DF4379 ELLIP H (03/??/03) 13.247 (m) GP(2002.00) c c
DF4379
DF4379.Superseded values are not recommended for survey control.
DF4379
DF4379.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DF4379.See file dsdata.pdf to determine how the superseded data were derived.
DF4379
DF4379_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DF4379
DF4379 STATION DESCRIPTION
DF4379
DF4379'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DF4379'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DF4379'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DF4379'ACCESSIBLE AT THE WORLDWIDE WEB.
DF4379'https://geodesy.noaa.gov/CORS/data.shtml
DF4379'https://geodesy.noaa.gov/CORS
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