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 19, 2025 14:27:40 EST
DI1688 ***********************************************************************
DI1688 CORS - This is a GPS Continuously Operating Reference Station.
DI1688 DESIGNATION - ALPENA CORS ARP
DI1688 CORS_ID - MIAL
DI1688 PID - DI1688
DI1688 STATE/COUNTY- MI/ALPENA
DI1688 COUNTRY - US
DI1688 USGS QUAD - ALPENA (2017)
DI1688
DI1688 *CURRENT SURVEY CONTROL
DI1688 ______________________________________________________________________
DI1688* NAD 83(2011) POSITION- 45 03 46.72853(N) 083 25 42.86703(W) ADJUSTED
DI1688* NAD 83(2011) ELLIP HT- 145.767 (meters) (04/??/22) ADJUSTED
DI1688* NAD 83(2011) EPOCH - 2010.00
DI1688* NAVD 88 ORTHO HEIGHT - 182.255 (meters) 597.95 (feet) ADJUSTED
DI1688 ______________________________________________________________________
DI1688 GEOID HEIGHT - -36.542 (meters) GEOID18
DI1688 NAD 83(2011) X - 516,445.990 (meters) COMP
DI1688 NAD 83(2011) Y - -4,483,093.101 (meters) COMP
DI1688 NAD 83(2011) Z - 4,492,398.009 (meters) COMP
DI1688 VERT ORDER - SECOND CLASS I
DI1688
DI1688 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DI1688 Standards:
DI1688 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DI1688 Horiz Ellip SD_N SD_E SD_h (unitless)
DI1688 -------------------------------------------------------------------
DI1688 NETWORK 0.16 0.36 0.05 0.07 0.18 -0.10150100
DI1688 -------------------------------------------------------------------
DI1688
DI1688.The coordinates were established by GPS observations
DI1688.and adjusted by the National Geodetic Survey in April 2022.
DI1688
DI1688.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DI1688.been affixed to the stable North American Tectonic Plate.
DI1688
DI1688.The coordinates are valid at the epoch date displayed above
DI1688.which is a decimal equivalence of Year/Month/Day.
DI1688
DI1688.Due to the release of the International GNSS Service (IGS) 2014
DI1688.realization of the International Terrestrial Reference Frame of 2014
DI1688.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DI1688.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DI1688.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DI1688.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DI1688.currently published epoch of 2010.00.
DI1688
DI1688.Additional information on MYCS2 is available at
DI1688.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DI1688
DI1688.The orthometric height was determined by differential leveling and
DI1688.adjusted by the NATIONAL GEODETIC SURVEY
DI1688.in November 2024.
DI1688
DI1688.Significant digits in the geoid height do not necessarily reflect accuracy.
DI1688.GEOID18 height accuracy estimate available here.
DI1688
DI1688.The PID for the CORS L1 Phase Center is DR7720.
DI1688
DI1688.Click photographs - Photos may exist for this station.
DI1688
DI1688.The XYZ, and position/ellipsoidal ht. are equivalent.
DI1688
DI1688.The ellipsoidal height was determined by GPS observations
DI1688.and is referenced to NAD 83.
DI1688
DI1688. The following values were computed from the NAD 83(2011) position.
DI1688
DI1688; North East Units Scale Factor Converg.
DI1688;SPC MI C - 194,477.615 6,073,876.612 MT 0.99991488 +0 39 45.6
DI1688;SPC MI C - 638,049.92 19,927,416.71 iFT 0.99991488 +0 39 45.6
DI1688;UTM 17 - 4,992,816.040 308,801.061 MT 1.00004953 -1 43 10.8
DI1688
DI1688! - Elev Factor x Scale Factor = Combined Factor
DI1688!SPC MI C - 0.99997715 x 0.99991488 = 0.99989203
DI1688!UTM 17 - 0.99997715 x 1.00004953 = 1.00002668
DI1688
DI1688_U.S. NATIONAL GRID SPATIAL ADDRESS: 17TLK0880192816(NAD 83)
DI1688
DI1688 SUPERSEDED SURVEY CONTROL
DI1688
DI1688 NAD 83(2011)- 45 03 46.72853(N) 083 25 42.86702(W) AD(2010.00) c
DI1688 ELLIP H (06/??/19) 145.744 (m) GP(2010.00) c c
DI1688 ELLIP H (06/27/12) 145.749 (m) GP(2010.00) 0 0
DI1688 NAD 83(2011)- 45 03 46.72861(N) 083 25 42.86676(W) AD(2010.00) c
DI1688 NAD 83(2011)- 45 03 46.72857(N) 083 25 42.86692(W) AD(2010.00) c
DI1688 ELLIP H (08/??/11) 145.742 (m) GP(2010.00) c c
DI1688 NAD 83(CORS)- 45 03 46.72866(N) 083 25 42.86723(W) AD(2002.00) c
DI1688 ELLIP H (09/??/06) 145.747 (m) GP(2002.00) c c
DI1688
DI1688.Superseded values are not recommended for survey control.
DI1688
DI1688.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DI1688.See file dsdata.pdf to determine how the superseded data were derived.
DI1688
DI1688_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DI1688
DI1688 STATION DESCRIPTION
DI1688
DI1688'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DI1688'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DI1688'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DI1688'ACCESSIBLE AT THE WORLDWIDE WEB.
DI1688'https://geodesy.noaa.gov/CORS/data.shtml
DI1688'https://geodesy.noaa.gov/CORS
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