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 07:23:06 EST
DF8779 ***********************************************************************
DF8779 CORS - This is a GPS Continuously Operating Reference Station.
DF8779 DESIGNATION - HOUSTON 5 COOP CORS ARP
DF8779 CORS_ID - COH5
DF8779 PID - DF8779
DF8779 STATE/COUNTY- TX/HARRIS
DF8779 COUNTRY - US
DF8779 USGS QUAD - SETTEGAST (2019)
DF8779
DF8779 *CURRENT SURVEY CONTROL
DF8779 ______________________________________________________________________
DF8779* NAD 83(CORS) POSITION- 29 50 40.25912(N) 095 16 29.90968(W) ADJUSTED
DF8779* NAD 83(CORS) ELLIP HT- -13.258 (meters) (01/??/06) ADJUSTED
DF8779* NAD 83(CORS) EPOCH - 2002.00
DF8779 **This station is in an area of suspected vertical motion (see below).
DF8779 ______________________________________________________________________
DF8779 GEOID HEIGHT - -27.353 (meters) GEOID18
DF8779 NAD 83(CORS) X - -509,033.370 (meters) COMP
DF8779 NAD 83(CORS) Y - -5,513,393.825 (meters) COMP
DF8779 NAD 83(CORS) Z - 3,155,429.055 (meters) COMP
DF8779 HORZ ORDER - SPECIAL (CORS)
DF8779 ELLP ORDER - SPECIAL (CORS)
DF8779
DF8779.Formal positional accuracy estimates are not available for this CORS
DF8779.because its coordinates were determined in part using modeled
DF8779.velocities. Approximate one-sigma accuracies for latitude, longitude,
DF8779.and ellipsoid height can be obtained from the short-term time series.
DF8779.Additional information regarding modeled velocities is available on
DF8779.the CORS Coordinates for MYCS2 web page:
DF8779.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DF8779
DF8779.The coordinates were established by GPS observations
DF8779.and adjusted by the National Geodetic Survey in January 2006.
DF8779
DF8779.The datum tag of NAD 83(CORS) is equivalent to NAD 83(CORS96).
DF8779
DF8779.The coordinates are valid at the epoch date displayed above
DF8779.which is a decimal equivalence of Year/Month/Day.
DF8779
DF8779.Due to the release of the International GNSS Service (IGS) 2014
DF8779.realization of the International Terrestrial Reference Frame of 2014
DF8779.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DF8779.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DF8779.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DF8779.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DF8779.currently published epoch of 2010.00.
DF8779
DF8779.Additional information on MYCS2 is available at
DF8779.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DF8779
DF8779.** This station is in an area of suspected land subsidence, uplift, or
DF8779.** crustal motion. NGS recommends this and all published orthometric
DF8779.** heights in such areas be validated before use as vertical control.
DF8779.** Click here to see a list and map of nearby stations with valid
DF8779.** orthometric heights. Note: While datasheets are updated in real-time,
DF8779.** updates to archived datasheets and the SE TX Valid OH map occur
DF8779.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
DF8779.** heights as vertical control as they are deemed unreliable.
DF8779.**
DF8779.** If an established orthometric height is unavailable in the survey control
DF8779.** section, it should be considered suspect. To view suspect heights,
DF8779.** (in the superseded section), select 'Include suspect heights in vertical
DF8779.** motion areas' box from the datasheet retrieval page.
DF8779
DF8779.Significant digits in the geoid height do not necessarily reflect accuracy.
DF8779.GEOID18 height accuracy estimate available here.
DF8779
DF8779.The PID for the CORS L1 Phase Center is DG4088.
DF8779
DF8779.Click photographs - Photos may exist for this station.
DF8779
DF8779.The XYZ, and position/ellipsoidal ht. are equivalent.
DF8779
DF8779.The ellipsoidal height was determined by GPS observations
DF8779.and is referenced to NAD 83.
DF8779
DF8779. The following values were computed from the NAD 83(CORS) position.
DF8779
DF8779; North East Units Scale Factor Converg.
DF8779;SPC TXSC - 4,228,626.674 959,876.880 MT 0.99990267 +1 49 29.8
DF8779;SPC TXSC -13,873,419.35 3,149,196.06 sFT 0.99990267 +1 49 29.8
DF8779;UTM 15 - 3,303,728.877 280,213.340 MT 1.00019604 -1 07 57.3
DF8779
DF8779! - Elev Factor x Scale Factor = Combined Factor
DF8779!SPC TXSC - 1.00000208 x 0.99990267 = 0.99990475
DF8779!UTM 15 - 1.00000208 x 1.00019604 = 1.00019812
DF8779
DF8779_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RTP8021303728(NAD 83)
DF8779
DF8779 SUPERSEDED SURVEY CONTROL
DF8779
DF8779 NAD 83(CORS)- 29 50 40.25894(N) 095 16 29.91005(W) AD(2002.00) c
DF8779 ELLIP H (08/??/03) -13.245 (m) GP(2002.00) c c
DF8779
DF8779.Superseded values are not recommended for survey control.
DF8779
DF8779.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DF8779.See file dsdata.pdf to determine how the superseded data were derived.
DF8779
DF8779_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DF8779
DF8779 STATION DESCRIPTION
DF8779
DF8779'DESCRIBED BY NATIONAL GEODETIC SURVEY 2006
DF8779'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DF8779'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DF8779'ACCESSIBLE AT THE WORLDWIDE WEB.
DF8779'https://geodesy.noaa.gov/CORS/data.shtml
DF8779'https://geodesy.noaa.gov/CORS
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