1    National Geodetic Survey, Retrieval Date = NOVEMBER  4, 2025 13:57:32 EST
 AJ8037 ***********************************************************************
 AJ8037  FBN         -  This is a Federal Base Network Control Station.
 AJ8037  DESIGNATION -  857 7330 F TIDAL
 AJ8037  PID         -  AJ8037
 AJ8037  STATE/COUNTY-  MD/CALVERT
 AJ8037  COUNTRY     -  US
 AJ8037  USGS QUAD   -  SOLOMONS ISLAND (2016)
 AJ8037
 AJ8037                         *CURRENT SURVEY CONTROL
 AJ8037  ______________________________________________________________________
 AJ8037* NAD 83(2011) POSITION- 38 19 10.72566(N) 076 27 21.40522(W)   ADJUSTED
 AJ8037* NAD 83(2011) ELLIP HT-   -32.933 (meters)        (06/27/12)   ADJUSTED
 AJ8037* NAD 83(2011) EPOCH   -  2010.00
 AJ8037* NAVD 88 ORTHO HEIGHT -     1.4   (meters)        5.    (feet) GPS OBS
 AJ8037  ______________________________________________________________________
 AJ8037  NAVD 88 orthometric height was determined with geoid model    GEOID99
 AJ8037  GEOID HEIGHT    -        -34.326 (meters)                     GEOID99
 AJ8037  GEOID HEIGHT    -        -34.398 (meters)                     GEOID18
 AJ8037  NAD 83(2011) X  -  1,173,419.414 (meters)                     COMP
 AJ8037  NAD 83(2011) Y  - -4,871,140.804 (meters)                     COMP
 AJ8037  NAD 83(2011) Z  -  3,933,321.525 (meters)                     COMP
 AJ8037  LAPLACE CORR    -         -5.24  (seconds)                    DEFLEC18
 AJ8037
 AJ8037  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AJ8037  Standards:
 AJ8037         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AJ8037            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AJ8037  -------------------------------------------------------------------
 AJ8037  NETWORK    0.48   0.98           0.21   0.18   0.50      0.12359686
 AJ8037  -------------------------------------------------------------------
 AJ8037  Click here for local accuracies and other accuracy information.
 AJ8037
 AJ8037.This is a reference station for the SOLOMONS ISLAND
 AJ8037.National Continuously Operating Reference Station (SOL1).
 AJ8037
 AJ8037.The horizontal coordinates were established by GPS observations
 AJ8037.and adjusted by the National Geodetic Survey in June 2012.
 AJ8037
 AJ8037.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AJ8037.been affixed to the stable North American tectonic plate. See 
 AJ8037.NA2011 for more information. 
 AJ8037
 AJ8037.The horizontal coordinates are valid at the epoch date displayed above
 AJ8037.which is a decimal equivalence of Year/Month/Day.
 AJ8037
 AJ8037.The orthometric height was determined by GPS observations and a
 AJ8037.high-resolution geoid model.
 AJ8037
 AJ8037.Significant digits in the geoid height do not necessarily reflect accuracy.
 AJ8037.GEOID18 height accuracy estimate available here.
 AJ8037
 AJ8037.Click photographs - Photos may exist for this station.
 AJ8037
 AJ8037.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AJ8037
 AJ8037.The Laplace correction was computed from DEFLEC18 derived deflections.
 AJ8037
 AJ8037.The ellipsoidal height was determined by GPS observations
 AJ8037.and is referenced to NAD 83.
 AJ8037
 AJ8037. The following values were computed from the NAD 83(2011) position.
 AJ8037
 AJ8037;                    North         East     Units Scale Factor Converg.
 AJ8037;SPC MD       -    72,625.378   447,577.010   MT  0.99999664   +0 20 29.3
 AJ8037;SPC MD       -   238,271.76  1,468,425.57   sFT  0.99999664   +0 20 29.3
 AJ8037;UTM  18      - 4,242,284.172   372,725.477   MT  0.99979949   -0 54 10.4
 AJ8037
 AJ8037!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AJ8037!SPC MD       -   1.00000517  x   0.99999664  =   1.00000181
 AJ8037!UTM  18      -   1.00000517  x   0.99979949  =   0.99980466
 AJ8037
 AJ8037_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH7272542284(NAD 83)
 AJ8037
 AJ8037|---------------------------------------------------------------------|
 AJ8037| PID    Reference Object                     Distance      Geod. Az  |
 AJ8037|                                                           dddmmss.s |
 AJ8037| AI3287 SOLOMONS ISLAND CORS ARP            199.341 METERS 11539     |
 AJ8037|---------------------------------------------------------------------|
 AJ8037
 AJ8037                          SUPERSEDED SURVEY CONTROL
 AJ8037
 AJ8037  NAD 83(2007)-  38 19 10.72582(N)    076 27 21.40592(W) AD(2002.00) 0
 AJ8037  ELLIP H (02/10/07)  -32.912  (m)                       GP(2002.00)    
 AJ8037  NAD 83(1991)-  38 19 10.72537(N)    076 27 21.40638(W) AD(       ) A
 AJ8037  ELLIP H (02/12/02)  -32.904  (m)                       GP(       ) 4 1
 AJ8037
 AJ8037.Superseded values are not recommended for survey control.
 AJ8037
 AJ8037.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AJ8037.See file dsdata.pdf to determine how the superseded data were derived.
 AJ8037
 AJ8037_MARKER: DJ = TIDAL STATION DISK
 AJ8037_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE
 AJ8037_SP_SET: RETAINING WALL
 AJ8037_STAMPING: 857 7330 F 1998
 AJ8037_MARK LOGO: NOS
 AJ8037_MAGNETIC: N = NO MAGNETIC MATERIAL
 AJ8037_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AJ8037+STABILITY: SURFACE MOTION
 AJ8037_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AJ8037+SATELLITE: SATELLITE OBSERVATIONS - July 31, 2022
 AJ8037
 AJ8037  HISTORY     - Date     Condition        Report By
 AJ8037  HISTORY     - 1998     MONUMENTED       NOS
 AJ8037  HISTORY     - 20000216 GOOD             NGS
 AJ8037  HISTORY     - 20050726 GOOD             USPSQD
 AJ8037  HISTORY     - 20220731 GOOD             WTBALL
 AJ8037
 AJ8037                          STATION DESCRIPTION
 AJ8037
 AJ8037'DESCRIBED BY NATIONAL GEODETIC SURVEY 2000 (MLM)
 AJ8037'THE STATION IS LOCATED IN SOLOMONS ABOUT 0.16 KM (0.10 MI) SOUTHEAST
 AJ8037'OF THE JUNCTION OF PATUXENT AND CHARLES STREETS, ON THE NORTHEAST SIDE
 AJ8037'OF CHARLES STREET IN THE TOP OF THE SOUTHWEST SIDE OF A CONCRETE
 AJ8037'RETAINING WALL ENCLOSING A BRICK PUMP HOUSE.  OWNERSHIP--CITY OF
 AJ8037'SOLOMONS.  TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 2
 AJ8037'AND 4 LOCATED AT THE NORTHEAST END OF THE HIGHWAY 4 BRIDGE OVER THE
 AJ8037'PATUXENT RIVER AND AT THE VISITOR CENTER (REST AREA) ON THE NORTH SIDE
 AJ8037'OF SOLOMONS, GO SOUTH ON HIGHWAY 2 FOR 1.53 KM (0.95 MI) TO THE
 AJ8037'JUNCTION OF PATUXENT STREET AND CHARLES STREET, BEAR LEFT,
 AJ8037'SOUTHEASTERLY ON CHARLES STREET FOR 0.16 KM (0.10 MI) TO A BRICK
 AJ8037'PUMPING STATION BUILDING ON THE LEFT AND THE STATION ABOUT IN THE
 AJ8037'CENTER AND IN THE TOP OF THE WEST SIDE OF A CONCRETE RETAINING WALL
 AJ8037'ENCLOSING THE PUMPING STATION.  THE STATION IS AN NOS TIDAL STATION
 AJ8037'DISK SET IN A DRILL HOLE IN THE TOP OF THE RETAINING WALL ABOUT 0.77 M
 AJ8037'(2.53 FT) ABOVE THE GROUND, LOCATED 8.69 M (28.51 FT) NORTH OF THE
 AJ8037'CENTER OF CHARLES STREET, 3.33 M (10.93 FT) NORTHWEST OF A RAILROAD
 AJ8037'SPIKE IN THE BASE OF A POWER POLE (NUMBER 36) WITH TWO TRANSFORMERS,
 AJ8037'2.14 M (7.02 FT) WEST OF THE WEST FACE OF THE PUMPING STATION BUILDING
 AJ8037'AND 1.59 M (5.22 FT) SOUTH OF THE SOUTH WOOD LEG SUPPORTING A SET OF
 AJ8037'ELECTRIC METERS.
 AJ8037
 AJ8037                          STATION RECOVERY (2005)
 AJ8037
 AJ8037'RECOVERY NOTE BY US POWER SQUADRON 2005 (BRE)
 AJ8037'AS DESCRIBED
 AJ8037
 AJ8037                          STATION RECOVERY (2022)
 AJ8037
 AJ8037'RECOVERY NOTE BY THE WILSON T BALLARD COMPANY 2022 (JMB)
 AJ8037'RECOVERED IN GOOD CONDITION.

Log: Recovered on Tuesday, 11/04/2025 at 4:01pm EST. The benchmark disc itself is in good condition, but a chain-link fence on the retaining wall prevented me from getting a clean photo, and will likely interfere with any surveying-related use of the station. I returned on 11/05 at 7:16am to take a better photo, as my initial photo was out of focus.