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 17, 2025 19:44:15 EST
DG4393 ***********************************************************************
DG4393 CORS - This is a GPS Continuously Operating Reference Station.
DG4393 DESIGNATION - JGRIFFIN COOP CORS ARP
DG4393 CORS_ID - JGS1
DG4393 PID - DG4393
DG4393 STATE/COUNTY- TX/LIBERTY
DG4393 COUNTRY - US
DG4393 USGS QUAD - DAYTON (2019)
DG4393
DG4393 *CURRENT SURVEY CONTROL
DG4393 ______________________________________________________________________
DG4393* NAD 83(CORS) POSITION- 30 02 47.07757(N) 094 53 19.50349(W) ADJUSTED
DG4393* NAD 83(CORS) ELLIP HT- 6.438 (meters) (10/??/03) ADJUSTED
DG4393* NAD 83(CORS) EPOCH - 2002.00
DG4393 **This station is in an area of suspected vertical motion (see below).
DG4393 ______________________________________________________________________
DG4393 GEOID HEIGHT - -27.376 (meters) GEOID18
DG4393 NAD 83(CORS) X - -470,906.354 (meters) COMP
DG4393 NAD 83(CORS) Y - -5,505,585.851 (meters) COMP
DG4393 NAD 83(CORS) Z - 3,174,831.382 (meters) COMP
DG4393 HORZ ORDER - SPECIAL (CORS)
DG4393 ELLP ORDER - SPECIAL (CORS)
DG4393
DG4393.Formal positional accuracy estimates are not available for this CORS
DG4393.because its coordinates were determined in part using modeled
DG4393.velocities. Approximate one-sigma accuracies for latitude, longitude,
DG4393.and ellipsoid height can be obtained from the short-term time series.
DG4393.Additional information regarding modeled velocities is available on
DG4393.the CORS Coordinates for MYCS2 web page:
DG4393.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DG4393
DG4393.The coordinates were established by GPS observations
DG4393.and adjusted by the National Geodetic Survey in October 2003.
DG4393
DG4393.The datum tag of NAD 83(CORS) is equivalent to NAD 83(CORS96).
DG4393
DG4393.The coordinates are valid at the epoch date displayed above
DG4393.which is a decimal equivalence of Year/Month/Day.
DG4393
DG4393.Due to the release of the International GNSS Service (IGS) 2014
DG4393.realization of the International Terrestrial Reference Frame of 2014
DG4393.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DG4393.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DG4393.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DG4393.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DG4393.currently published epoch of 2010.00.
DG4393
DG4393.Additional information on MYCS2 is available at
DG4393.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DG4393
DG4393.** This station is in an area of suspected land subsidence, uplift, or
DG4393.** crustal motion. NGS recommends this and all published orthometric
DG4393.** heights in such areas be validated before use as vertical control.
DG4393.** Click here to see a list and map of nearby stations with valid
DG4393.** orthometric heights. Note: While datasheets are updated in real-time,
DG4393.** updates to archived datasheets and the SE TX Valid OH map occur
DG4393.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
DG4393.** heights as vertical control as they are deemed unreliable.
DG4393.**
DG4393.** If an established orthometric height is unavailable in the survey control
DG4393.** section, it should be considered suspect. To view suspect heights,
DG4393.** (in the superseded section), select 'Include suspect heights in vertical
DG4393.** motion areas' box from the datasheet retrieval page.
DG4393
DG4393.Significant digits in the geoid height do not necessarily reflect accuracy.
DG4393.GEOID18 height accuracy estimate available here.
DG4393
DG4393.The PID for the CORS L1 Phase Center is DG4394.
DG4393
DG4393.Click photographs - Photos may exist for this station.
DG4393
DG4393.The XYZ, and position/ellipsoidal ht. are equivalent.
DG4393
DG4393.The ellipsoidal height was determined by GPS observations
DG4393.and is referenced to NAD 83.
DG4393
DG4393. The following values were computed from the NAD 83(CORS) position.
DG4393
DG4393; North East Units Scale Factor Converg.
DG4393;SPC TX C - 3,054,945.530 1,224,883.505 MT 1.00001950 +2 48 15.4
DG4393;SPC TX C -10,022,767.13 4,018,638.63 sFT 1.00001950 +2 48 15.4
DG4393;UTM 15 - 3,325,431.178 317,902.597 MT 1.00000912 -0 56 45.5
DG4393
DG4393! - Elev Factor x Scale Factor = Combined Factor
DG4393!SPC TX C - 0.99999899 x 1.00001950 = 1.00001849
DG4393!UTM 15 - 0.99999899 x 1.00000912 = 1.00000811
DG4393
DG4393_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RUP1790225431(NAD 83)
DG4393
DG4393 SUPERSEDED SURVEY CONTROL
DG4393
DG4393.No superseded survey control is available for this station.
DG4393
DG4393_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DG4393
DG4393 STATION DESCRIPTION
DG4393
DG4393'DESCRIBED BY NATIONAL GEODETIC SURVEY 2003
DG4393'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DG4393'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DG4393'ACCESSIBLE AT THE WORLDWIDE WEB.
DG4393'https://geodesy.noaa.gov/CORS/data.shtml
DG4393'https://geodesy.noaa.gov/CORS
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