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 02:18:17 EST
AF9539 ***********************************************************************
AF9539 HT_MOD - This is a Height Modernization Survey Station.
AF9539 CORS - This is a GPS Continuously Operating Reference Station.
AF9539 DESIGNATION - HOUSTON RRP CORS ARP
AF9539 CORS_ID - HOUS
AF9539 PID - AF9539
AF9539 STATE/COUNTY- TX/HARRIS
AF9539 COUNTRY - US
AF9539 USGS QUAD - HOUSTON HEIGHTS (2019)
AF9539
AF9539 *CURRENT SURVEY CONTROL
AF9539 ______________________________________________________________________
AF9539* NAD 83(2011) POSITION- 29 46 45.89153(N) 095 25 58.74218(W) ADJUSTED
AF9539* NAD 83(2011) ELLIP HT- 13.186 (meters) (06/??/19) ADJUSTED
AF9539* NAD 83(2011) EPOCH - 2010.00
AF9539* NAVD 88 ORTHO HEIGHT - **(meters) **(feet) NOT PUB
AF9539 **This station is in an area of suspected vertical motion (see below).
AF9539 ______________________________________________________________________
AF9539 NAVD 88 orthometric height was determined with an earlier geoid model
AF9539 GEOID HEIGHT - -27.378 (meters) GEOID18
AF9539 NAD 83(2011) X - -524,577.994 (meters) COMP
AF9539 NAD 83(2011) Y - -5,515,563.515 (meters) COMP
AF9539 NAD 83(2011) Z - 3,149,180.703 (meters) COMP
AF9539
AF9539 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9539 Standards:
AF9539 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9539 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9539 -------------------------------------------------------------------
AF9539 NETWORK 0.50 1.34 0.16 0.24 0.68 0.05670500
AF9539 -------------------------------------------------------------------
AF9539
AF9539.The coordinates were established by GPS observations
AF9539.and adjusted by the National Geodetic Survey in June 2019.
AF9539
AF9539.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9539.been affixed to the stable North American Tectonic Plate.
AF9539
AF9539.The coordinates are valid at the epoch date displayed above
AF9539.which is a decimal equivalence of Year/Month/Day.
AF9539
AF9539.Due to the release of the International GNSS Service (IGS) 2014
AF9539.realization of the International Terrestrial Reference Frame of 2014
AF9539.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9539.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9539.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9539.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9539.currently published epoch of 2010.00.
AF9539
AF9539.Additional information on MYCS2 is available at
AF9539.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9539
AF9539.** This station is in an area of suspected land subsidence, uplift, or
AF9539.** crustal motion. NGS recommends this and all published orthometric
AF9539.** heights in such areas be validated before use as vertical control.
AF9539.** Click here to see a list and map of nearby stations with valid
AF9539.** orthometric heights. Note: While datasheets are updated in real-time,
AF9539.** updates to archived datasheets and the SE TX Valid OH map occur
AF9539.** monthly. NGS discourages the use of scaled, VERTCON, or superseded
AF9539.** heights as vertical control as they are deemed unreliable.
AF9539.**
AF9539.** If an established orthometric height is unavailable in the survey control
AF9539.** section, it should be considered suspect. To view suspect heights,
AF9539.** (in the superseded section), select 'Include suspect heights in vertical
AF9539.** motion areas' box from the datasheet retrieval page.
AF9539
AF9539.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9539.GEOID18 height accuracy estimate available here.
AF9539
AF9539.The PID for the CORS L1 Phase Center is AW5607.
AF9539
AF9539.Click photographs - Photos may exist for this station.
AF9539
AF9539.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9539
AF9539.The ellipsoidal height was determined by GPS observations
AF9539.and is referenced to NAD 83.
AF9539
AF9539. The following values were computed from the NAD 83(2011) position.
AF9539
AF9539; North East Units Scale Factor Converg.
AF9539;SPC TXSC - 4,220,938.336 944,836.421 MT 0.99989323 +1 44 51.1
AF9539;SPC TXSC -13,848,195.19 3,099,850.82 sFT 0.99989323 +1 44 51.1
AF9539;UTM 15 - 3,296,824.310 264,791.033 MT 1.00028264 -1 12 32.1
AF9539
AF9539! - Elev Factor x Scale Factor = Combined Factor
AF9539!SPC TXSC - 0.99999793 x 0.99989323 = 0.99989116
AF9539!UTM 15 - 0.99999793 x 1.00028264 = 1.00028057
AF9539
AF9539_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RTN6479196824(NAD 83)
AF9539
AF9539 SUPERSEDED SURVEY CONTROL
AF9539
AF9539 ELLIP H (06/27/12) 13.297 (m) GP(2010.00) 0 0
AF9539 NAD 83(2011)- 29 46 45.89146(N) 095 25 58.74063(W) AD(2010.00) c
AF9539 NAD 83(2011)- 29 46 45.89153(N) 095 25 58.74181(W) AD(2010.00) c
AF9539 ELLIP H (08/??/11) 13.214 (m) GP(2010.00) c c
AF9539 ELLIP H (02/10/07) 13.290 (m) GP(2002.00)
AF9539 NAD 83(2007)- 29 46 45.89146(N) 095 25 58.74184(W) AD(2002.00) c
AF9539 NAD 83(CORS)- 29 46 45.89146(N) 095 25 58.74184(W) AD(2002.00) c
AF9539 ELLIP H (03/??/02) 13.290 (m) GP(2002.00) c c
AF9539 NAD 83(CORS)- 29 46 45.89148(N) 095 25 58.74151(W) AD(1997.00) c
AF9539 ELLIP H (07/??/00) 13.348 (m) GP(1997.00) c c
AF9539 NAD 83(CORS)- 29 46 45.89128(N) 095 25 58.74120(W) AD(1997.00) c
AF9539 ELLIP H (03/??/98) 13.344 (m) GP(1997.00) c c
AF9539 NAD 83(CORS)- 29 46 45.89120(N) 095 25 58.74141(W) AD(1997.00) c
AF9539 ELLIP H (04/??/96) 13.362 (m) GP(1997.00) c c
AF9539 NAD 83(CORS)- 29 46 45.89120(N) 095 25 58.74141(W) AD(1996.00) c
AF9539 ELLIP H (04/??/96) 13.362 (m) GP(1996.00) c c
AF9539
AF9539.Superseded values are not recommended for survey control.
AF9539
AF9539.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9539.See file dsdata.pdf to determine how the superseded data were derived.
AF9539
AF9539_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9539
AF9539 STATION DESCRIPTION
AF9539
AF9539'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9539'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9539'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9539'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9539'https://geodesy.noaa.gov/CORS/data.shtml
AF9539'https://geodesy.noaa.gov/CORS
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