DATASHEETS  



The NGS Data SheetSee file  dsdata.txt for more information about the datasheet.DATABASE = Sybase ,PROGRAM = datasheet, VERSION = 6.91
1        National Geodetic Survey,   Retrieval Date = NOVEMBER  6, 2003
 AF9504 ***********************************************************************
 AF9504  CORS        -  This is a GPS Continuously Operating Reference Station.
 AF9504  DESIGNATION -  POINT BLUNT 1 CORS ARP
 AF9504  CORS_ID     -  PBL1
 AF9504  PID         -  AF9504
 AF9504  STATE/COUNTY-  CA/MARIN
 AF9504  USGS QUAD   -  SAN FRANCISCO NORTH (1995)
 AF9504
 AF9504                         *CURRENT SURVEY CONTROL
 AF9504  ___________________________________________________________________
 AF9504* NAD 83(CORS)-  37 51 10.97845(N)    122 25 08.15490(W)     ADJUSTED  
 AF9504* NAVD 88     -        24.8    (meters)      81.     (feet)  GPS OBS   
 AF9504  ___________________________________________________________________
 AF9504  EPOCH DATE  -        2002.00
 AF9504  X           -  -2,703,285.806 (meters)                     COMP
 AF9504  Y           -  -4,256,587.335 (meters)                     COMP
 AF9504  Z           -   3,892,573.417 (meters)                     COMP
 AF9504  ELLIP HEIGHT-          -7.53  (meters)          (03/??/02) GPS OBS
 AF9504  GEOID HEIGHT-         -32.34  (meters)                     GEOID99
 AF9504
 AF9504  HORZ ORDER  -  SPECIAL (CORS)
 AF9504  ELLP ORDER  -  SPECIAL (CORS)
 AF9504
 AF9504.ITRF positions are available for this station.
 AF9504.The coordinates were established by GPS observations
 AF9504.and adjusted by the National Geodetic Survey in March 2002.
 AF9504.The coordinates are valid at the epoch date displayed above.
 AF9504.The epoch date for horizontal control is a decimal equivalence
 AF9504.of Year/Month/Day.
 AF9504
 AF9504.The orthometric height was determined by GPS observations and a
 AF9504.high-resolution geoid model.
 AF9504
 AF9504.The PID for the CORS L1 Phase Center is AJ7874.
 AF9504
 AF9504.The XYZ, and position/ellipsoidal ht. are equivalent.
 AF9504
 AF9504.The ellipsoidal height was determined by GPS observations
 AF9504.and is referenced to NAD 83.
 AF9504
 AF9504.The geoid height was determined by GEOID99.
 AF9504
 AF9504;                    North         East     Units   Scale      Converg.
 AF9504;SPC CA 3     -   651,894.300 1,831,143.246   MT  0.99993076 -1 10 29.4
 AF9504;SPC CA 3     - 2,138,756.55  6,007,675.80   sFT  0.99993076 -1 10 29.4
 AF9504
 AF9504                          SUPERSEDED SURVEY CONTROL
 AF9504
 AF9504  NAD 83(CORS)-  37 51 10.97476(N)    122 25 08.15033(W) AD(1997.00) c
 AF9504  ELLIP H (07/??/00)   -7.53   (m)                       GP(1997.00) c c
 AF9504  NAD 83(CORS)-  37 51 10.97455(N)    122 25 08.15018(W) AD(1997.00) c
 AF9504  NAD 83(CORS)-  37 51 10.97385(N)    122 25 08.14932(W) AD(1996.00) c
 AF9504  ELLIP H (04/??/96)   -7.50   (m)                       GP(1997.00) c c
 AF9504  ELLIP H (04/??/96)   -7.50   (m)                       GP(1996.00) c c
 AF9504
 AF9504.Superseded values are not recommended for survey control.
 AF9504.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AF9504.See file dsdata.txt to determine how the superseded data were derived.
 AF9504
 AF9504_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG5111889670(NAD 83)
 AF9504_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
 AF9504
 AF9504                          STATION DESCRIPTION
 AF9504
 AF9504'DESCRIBED BY NATIONAL GEODETIC SURVEY 2002
 AF9504'STATION IS A GPS CORS.  LATEST INFORMATION INCLUDING POSITIONS AND
 AF9504'VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
 AF9504'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
 AF9504'   FTP CORS.NGS.NOAA.GOV: CORS/COORD  AND  CORS/STATION_LOG
 AF9504'   HTTP://WWW.NGS.NOAA.GOV  UNDER PRODUCTS AND SERVICES.

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