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 18, 2025 10:30:23 EST
DH3606 ***********************************************************************
DH3606 HT_MOD - This is a Height Modernization Survey Station.
DH3606 CORS - This is a GPS Continuously Operating Reference Station.
DH3606 DESIGNATION - GALVESTON CORS ARP
DH3606 CORS_ID - TXGA
DH3606 PID - DH3606
DH3606 STATE/COUNTY- TX/GALVESTON
DH3606 COUNTRY - US
DH3606 USGS QUAD - GALVESTON (2019)
DH3606
DH3606 *CURRENT SURVEY CONTROL
DH3606 ______________________________________________________________________
DH3606* NAD 83(2011) POSITION- 29 19 40.30733(N) 094 46 21.46974(W) ADJUSTED
DH3606* NAD 83(2011) ELLIP HT- -9.298 (meters) (03/??/22) ADJUSTED
DH3606* NAD 83(2011) EPOCH - 2010.00
DH3606* NAVD 88 ORTHO HEIGHT - **(meters) **(feet) NOT PUB
DH3606 **This station is in an area of suspected vertical motion (see below).
DH3606 ______________________________________________________________________
DH3606 NAVD 88 orthometric height was determined with geoid model GEOID09
DH3606 GEOID HEIGHT - -26.644 (meters) GEOID09
DH3606 GEOID HEIGHT - -26.645 (meters) GEOID18
DH3606 NAD 83(2011) X - -463,028.230 (meters) COMP
DH3606 NAD 83(2011) Y - -5,545,825.496 (meters) COMP
DH3606 NAD 83(2011) Z - 3,105,629.616 (meters) COMP
DH3606
DH3606 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH3606 Standards:
DH3606 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH3606 Horiz Ellip SD_N SD_E SD_h (unitless)
DH3606 -------------------------------------------------------------------
DH3606 NETWORK 0.24 0.55 0.06 0.12 0.28 0.09128300
DH3606 -------------------------------------------------------------------
DH3606
DH3606.The coordinates were established by GPS observations
DH3606.and adjusted by the National Geodetic Survey in March 2022.
DH3606
DH3606.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH3606.been affixed to the stable North American Tectonic Plate.
DH3606
DH3606.The coordinates are valid at the epoch date displayed above
DH3606.which is a decimal equivalence of Year/Month/Day.
DH3606
DH3606.Due to the release of the International GNSS Service (IGS) 2014
DH3606.realization of the International Terrestrial Reference Frame of 2014
DH3606.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH3606.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH3606.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH3606.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH3606.currently published epoch of 2010.00.
DH3606
DH3606.Additional information on MYCS2 is available at
DH3606.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH3606
DH3606.** This station is in an area of suspected land subsidence, uplift, or
DH3606.** crustal motion. NGS recommends this and all published orthometric
DH3606.** heights in such areas be validated before use as vertical control.
DH3606.** Click here to see a list and map of nearby stations with valid
DH3606.** orthometric heights. Note: While datasheets are updated in real-time,
DH3606.** updates to archived datasheets and the SE TX Valid OH map occur
DH3606.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
DH3606.** heights as vertical control as they are deemed unreliable.
DH3606.**
DH3606.** If an established orthometric height is unavailable in the survey control
DH3606.** section, it should be considered suspect. To view suspect heights,
DH3606.** (in the superseded section), select 'Include suspect heights in vertical
DH3606.** motion areas' box from the datasheet retrieval page.
DH3606
DH3606.Significant digits in the geoid height do not necessarily reflect accuracy.
DH3606.GEOID18 height accuracy estimate available here.
DH3606
DH3606.The PID for the CORS L1 Phase Center is DR7674.
DH3606
DH3606.Click photographs - Photos may exist for this station.
DH3606
DH3606.The XYZ, and position/ellipsoidal ht. are equivalent.
DH3606
DH3606.The ellipsoidal height was determined by GPS observations
DH3606.and is referenced to NAD 83.
DH3606
DH3606. The following values were computed from the NAD 83(2011) position.
DH3606
DH3606; North East Units Scale Factor Converg.
DH3606;SPC TXSC - 4,173,052.460 1,010,458.147 MT 0.99986325 +2 04 15.8
DH3606;SPC TXSC -13,691,089.61 3,315,144.77 sFT 0.99986325 +2 04 15.8
DH3606;UTM 15 - 3,245,615.335 327,879.180 MT 0.99996557 -0 52 06.5
DH3606
DH3606! - Elev Factor x Scale Factor = Combined Factor
DH3606!SPC TXSC - 1.00000146 x 0.99986325 = 0.99986471
DH3606!UTM 15 - 1.00000146 x 0.99996557 = 0.99996703
DH3606
DH3606_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RUN2787945615(NAD 83)
DH3606
DH3606 SUPERSEDED SURVEY CONTROL
DH3606
DH3606 NAD 83(2011)- 29 19 40.30732(N) 094 46 21.46975(W) AD(2010.00) c
DH3606 ELLIP H (01/??/22) -9.318 (m) GP(2010.00) c c
DH3606 NAD 83(2011)- 29 19 40.30731(N) 094 46 21.46976(W) AD(2010.00) c
DH3606 ELLIP H (06/??/20) -9.335 (m) GP(2010.00) c c
DH3606 NAD 83(2011)- 29 19 40.30778(N) 094 46 21.47006(W) AD(2010.00) c
DH3606 ELLIP H (06/??/19) -9.363 (m) GP(2010.00) c c
DH3606 NAD 83(2011)- 29 19 40.30793(N) 094 46 21.47024(W) AD(2010.00) c
DH3606 ELLIP H (02/??/13) -9.368 (m) GP(2010.00) c c
DH3606 ELLIP H (06/27/12) -9.324 (m) GP(2010.00) 0 0
DH3606 NAD 83(2011)- 29 19 40.30734(N) 094 46 21.46975(W) AD(2010.00) c
DH3606 NAD 83(2011)- 29 19 40.30732(N) 094 46 21.46990(W) AD(2010.00) c
DH3606 ELLIP H (08/??/11) -9.338 (m) GP(2010.00) c c
DH3606 NAD 83(CORS)- 29 19 40.30708(N) 094 46 21.47060(W) AD(2002.00) c
DH3606 ELLIP H (08/??/07) -9.278 (m) GP(2002.00) c c
DH3606 NAD 83(CORS)- 29 19 40.30724(N) 094 46 21.47040(W) AD(2002.00) c
DH3606 ELLIP H (06/??/05) -9.304 (m) GP(2002.00) c c
DH3606
DH3606.Superseded values are not recommended for survey control.
DH3606
DH3606.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH3606.See file dsdata.pdf to determine how the superseded data were derived.
DH3606
DH3606_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH3606
DH3606 STATION DESCRIPTION
DH3606
DH3606'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DH3606'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH3606'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH3606'ACCESSIBLE AT THE WORLDWIDE WEB.
DH3606'https://geodesy.noaa.gov/CORS/data.shtml
DH3606'https://geodesy.noaa.gov/CORS
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