The NGS Data Sheet See file dsdata.pdf for more information about the datasheet. PROGRAM = datasheet95, VERSION = 8.12.5.6 Starting Datasheet Retrieval... 1 National Geodetic Survey, Retrieval Date = MARCH 18, 2020 BM0048 *********************************************************************** BM0048 FBN - This is a Federal Base Network Control Station. BM0048 DESIGNATION - SMETANA BM0048 PID - BM0048 BM0048 STATE/COUNTY- TX/BRAZOS BM0048 COUNTRY - US BM0048 USGS QUAD - BRYAN WEST (2019) BM0048 BM0048 *CURRENT SURVEY CONTROL BM0048 ______________________________________________________________________ BM0048* NAD 83(2011) POSITION- 30 38 17.38806(N) 096 28 31.49059(W) ADJUSTED BM0048* NAD 83(2011) ELLIP HT- 52.920 (meters) (06/27/12) ADJUSTED BM0048* NAD 83(2011) EPOCH - 2010.00 BM0048* NAVD 88 ORTHO HEIGHT - 79.5 (meters) 261. (feet) GPS OBS BM0048 ______________________________________________________________________ BM0048 NAVD 88 orthometric height was determined with geoid model GEOID99 BM0048 GEOID HEIGHT - -26.455 (meters) GEOID99 BM0048 GEOID HEIGHT - -26.543 (meters) GEOID18 BM0048 NAD 83(2011) X - -619,436.918 (meters) COMP BM0048 NAD 83(2011) Y - -5,457,548.147 (meters) COMP BM0048 NAD 83(2011) Z - 3,231,469.769 (meters) COMP BM0048 LAPLACE CORR - -1.12 (seconds) DEFLEC18 BM0048 BM0048 Network accuracy estimates per FGDC Geospatial Positioning Accuracy BM0048 Standards: BM0048 FGDC (95% conf, cm) Standard deviation (cm) CorrNE BM0048 Horiz Ellip SD_N SD_E SD_h (unitless) BM0048 ------------------------------------------------------------------- BM0048 NETWORK 0.28 0.82 0.12 0.11 0.42 -0.02033864 BM0048 ------------------------------------------------------------------- BM0048 Click here for local accuracies and other accuracy information. BM0048 BM0048 BM0048.The horizontal coordinates were established by GPS observations BM0048.and adjusted by the National Geodetic Survey in June 2012. BM0048 BM0048.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has BM0048.been affixed to the stable North American tectonic plate. See BM0048.NA2011 for more information. BM0048 BM0048.The horizontal coordinates are valid at the epoch date displayed above BM0048.which is a decimal equivalence of Year/Month/Day. BM0048 BM0048.The orthometric height was determined by GPS observations and a BM0048.high-resolution geoid model. BM0048 BM0048.Significant digits in the geoid height do not necessarily reflect accuracy. BM0048.GEOID18 height accuracy estimate available here. BM0048 BM0048.Click photographs - Photos may exist for this station. BM0048 BM0048.The X, Y, and Z were computed from the position and the ellipsoidal ht. BM0048 BM0048.The Laplace correction was computed from DEFLEC18 derived deflections. BM0048 BM0048.The ellipsoidal height was determined by GPS observations BM0048.and is referenced to NAD 83. BM0048 BM0048. The following values were computed from the NAD 83(2011) position. BM0048 BM0048; North East Units Scale Factor Converg. BM0048;SPC TX C - 3,114,107.287 1,069,721.117 MT 0.99990171 +1 59 13.4 BM0048;SPC TX C -10,216,866.99 3,509,576.70 sFT 0.99990171 +1 59 13.4 BM0048;UTM 14 - 3,392,220.101 741,955.400 MT 1.00032224 +1 17 13.9 BM0048 BM0048! - Elev Factor x Scale Factor = Combined Factor BM0048!SPC TX C - 0.99999169 x 0.99990171 = 0.99989340 BM0048!UTM 14 - 0.99999169 x 1.00032224 = 1.00031393 BM0048 BM0048: Primary Azimuth Mark Grid Az BM0048:SPC TX C - SMETANA AZ MK 090 27 29.2 BM0048:UTM 14 - SMETANA AZ MK 091 09 28.7 BM0048 BM0048_U.S. NATIONAL GRID SPATIAL ADDRESS: 14RQU4195592220(NAD 83) BM0048 BM0048|---------------------------------------------------------------------| BM0048| PID Reference Object Distance Geod. Az | BM0048| dddmmss.s | BM0048| BM0049 SMETANA RM 1 43.233 METERS 08829 | BM0048| BM0047 SMETANA AZ MK 0922642.6 | BM0048| BM0954 COLLEGE STA TEX A AND M E STK APPROX.13.0 KM 0995337.7 | BM0048| BM0951 COLLEGE STA TEX A AND M W STK APPROX.12.9 KM 0995442.0 | BM0048| BM0953 COLLEGE STA TEX A AND M TANK APPROX.13.1 KM 1001756.4 | BM0048| BM0955 COLLEGE STA TEX A AND M DOME APPROX.13.1 KM 1005046.8 | BM0048| BM0050 SMETANA RM 2 44.983 METERS 34707 | BM0048|---------------------------------------------------------------------| BM0048 BM0048 SUPERSEDED SURVEY CONTROL BM0048 BM0048 NAD 83(2007)- 30 38 17.38800(N) 096 28 31.49136(W) AD(2002.00) 0 BM0048 ELLIP H (02/10/07) 52.930 (m) GP(2002.00) BM0048 ELLIP H (05/01/00) 52.933 (m) GP( ) 3 1 BM0048 NAD 83(1993)- 30 38 17.38772(N) 096 28 31.49198(W) AD( ) B BM0048 ELLIP H (05/09/94) 53.121 (m) GP( ) 4 2 BM0048 NAD 83(1986)- 30 38 17.40268(N) 096 28 31.47010(W) AD( ) 2 BM0048 NAD 27 - 30 38 16.67564(N) 096 28 30.56773(W) AD( ) 3 BM0048 NAD 27 - 30 38 16.68300(N) 096 28 30.59500(W) AD( ) 2 BM0048 NAVD 88 (07/24/98) 79.5 (m) GEOID96 model used GPS OBS BM0048 NAVD 88 (01/13/95) 79.6 (m) UNKNOWN model used GPS OBS BM0048 NAVD 88 (05/09/94) 79.6 (m) GEOID93 model used GPS OBS BM0048 NGVD 29 (??/??/92) 79.406 (m) 260.52 (f) ADJ UNCH 2 0 BM0048 NGVD 29 79.82 (m) 261.9 (f) LEVELING 3 BM0048 NGVD 29 79.41 (m) 260.5 (f) LEVELING 3 BM0048 BM0048.Superseded values are not recommended for survey control. BM0048 BM0048.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. BM0048.See file dsdata.pdf to determine how the superseded data were derived. BM0048 BM0048_MARKER: DS = TRIANGULATION STATION DISK BM0048_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT BM0048_STAMPING: SMETANA 1943 BM0048_MARK LOGO: CGS BM0048_MAGNETIC: N = NO MAGNETIC MATERIAL BM0048_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO BM0048+STABILITY: SURFACE MOTION BM0048_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR BM0048+SATELLITE: SATELLITE OBSERVATIONS - May 16, 2011 BM0048 BM0048 HISTORY - Date Condition Report By BM0048 HISTORY - 1943 MONUMENTED CGS BM0048 HISTORY - 1943 GOOD CGS BM0048 HISTORY - 1949 GOOD CGS BM0048 HISTORY - 1957 GOOD CGS BM0048 HISTORY - 19880429 GOOD BM0048 HISTORY - 19930301 GOOD NGS BM0048 HISTORY - 19940820 GOOD USPSQD BM0048 HISTORY - 19980123 GOOD NGS BM0048 HISTORY - 20010419 GOOD TXDOT BM0048 HISTORY - 20021006 GOOD INDIV BM0048 HISTORY - 20040518 GOOD TXDOT BM0048 HISTORY - 20050518 GOOD TXDOT BM0048 HISTORY - 20050622 GOOD JCLS BM0048 HISTORY - 20070731 GOOD INDIV BM0048 HISTORY - 20090519 GOOD INDIV BM0048 HISTORY - 20110516 GOOD TXDOT BM0048 BM0048 STATION DESCRIPTION BM0048 BM0048'DESCRIBED BY COAST AND GEODETIC SURVEY 1943 (PLB) BM0048'STATION IS LOCATED ABOUT 6 MILES WSW OF BRYAN AT THE BRYAN BM0048'ARMY AIRPORT, 32.6 FEET E OF THE E EDGE OF A CONCRETE APRON, BM0048'16 PACES N OF THE CENTER LINE OF SIXTH STREET AND 14 PACES BM0048'W OF THE SW CORNER OF THE POST OPERATIONS BUILDING. IT IS BM0048'STAMPED SMETANA 1943 AND IS SET FLUSH WITH THE GROUND. BM0048'SURFACE, UNDERGROUND, REFERENCE MARK NO. 1, AND THE AZIMUTH BM0048'MARKS ARE BRONZE DISKS SET IN CONCRETE. BM0048'REFERENCE MARK NO. 1 IS E OF THE STATION, 17 PACES N OF THE BM0048'CENTER LINE OF SIXTH STREET AND 1 FOOT W OF THE SE CORNER BM0048'OF THE POST OPERATIONS BUILDING. IT IS STAMPED SMETANA NO. 1 BM0048'1943 AND PROJECTS 3 INCHES. BM0048'REFERENCE MARK NO. 2 IS NNW OF THE STATION AND 25 PACES W BM0048'OF THE SW LEG OF THE S ONE OF TWO CONTROL TOWERS. IT IS SET BM0048'IN A DRILL HOLE IN THE E EDGE OF THE CONCRETE APRON. IT IS BM0048'STAMPED SMETANA NO. 2 1943. BM0048'THE AZIMUTH MARK IS E OF THE STATION, 50 FEET W OF THE CENTER BM0048'LINE OF BRYAN ROAD AND 50 FEET S OF SIXTH STREET. IT IS STAMPED BM0048'SMETANA 1943 AND PROJECTS 3 INCHES. BM0048'TO REACH THE STATION FROM THE NE CORNER OF THE COURTHOUSE BM0048'SQUARE IN BRYAN, GO SW ON STATE HIGHWAY 21 FOR 6.4 MILES TO BM0048'THE MAIN ENTRANCE TO THE AIRPORT ON THE LEFT. (GUARD ENTRANCE BM0048'NO. 3.) THEN LEFT (S) FOR 0.9 MILE TO SIXTH STREET AND THE BM0048'AZIMUTH MARK IN THE SW CORNER OF THE INTERSECTION. THEN RIGHT, BM0048'W, FOR 0.5 MILE TO THE CONCRETE APRON AND THE STATION ON BM0048'THE RIGHT. BM0048'HEIGHT OF LIGHT ABOVE STATION MARK - 23 METERS. BM0048 BM0048 STATION RECOVERY (1943) BM0048 BM0048'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1943 BM0048'7.7 MI SW FROM BRYAN. BM0048'ABOUT 7.7 MILE SOUTHWEST FROM THE COURTHOUSE AT BRYAN BRAZOS COUNTY, BM0048'AT THE BRYAN ARMY AIR FIELD, 32.6 FEET EAST OF THE EAST OF THE BM0048'CONCRETE APRON, 50.0 FEET NORTH OF CENTER LINE OF SIXTH STREET, 33.0 BM0048'WEST OF THE SOUTHWEST CORNER OF POST OPERATIONS BUILDING, A STANDARD BM0048'TRIANGULATION DISK, STAMPED SMETANA 1943, SET IN THE TOP OF A CONCRETE BM0048'BLOCK SET FLUSH WITH THE GROUND. BM0048 BM0048 STATION RECOVERY (1949) BM0048 BM0048'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1949 (WHH) BM0048'RECOVERED AS DESCRIBED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (1957) BM0048 BM0048'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1957 (LFV) BM0048'STATION, AZIMUTH, AND REFERENCE MARK NO. 1 RECOVERED IN BM0048'GOOD CONDITION. REFERENCE MARK NO. 2 SEARCHED FOR BUT NOT BM0048'RECOVERED. DESCRIPTION ADEQUATE AND CORRECT EXCEPT FOR THE BM0048'FOLLOWING. SIXTH STREET IS NOW MILLS STREET. BM0048 BM0048 STATION RECOVERY (1988) BM0048 BM0048'RECOVERED 1988 BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (1993) BM0048 BM0048'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1993 BM0048'THE STATION IS LOCATED ABOUT 10 KM (6.20 MI) WEST OF COLLEGE STATION, BM0048'6 KM (3.70 MI) SOUTHWEST OF BRYAN, IN FLAT GRASS IN THE FRONT LAWN OF BM0048'BUILDING 7061 AND IN THE NORTHEAST QUADRANT OF 6TH STREET AND A BM0048'CONCRETE APRON OF AN AIRPORT USED FOR RESEARCH. OWNERSHIP--TEXAS A BM0048'AND M UNIVERSITY RIVERSIDE CAMPUS, TEXAS A AND M RIVERSIDE CAMPUS BM0048'HIGHWAY, BUILDING 7535, BRYAN, TX 77803. FOR PERMISSION TO USE THIS BM0048'STATION CONTACT JAN TIMM IN CHARGE OF MAINTENANCE FOR THE CAMPUS. BM0048'PHONE 409-845-6270 DURING 8-5 BUSINESS HOURS. BM0048'TO REACH FROM THE JUNCTION OF STATE HIGHWAY 21 AND FARM ROAD 2818 ON BM0048'THE WEST SIDE OF BRYAN, GO WEST-SOUTHWEST ON HIGHWAY 21 FOR 6.47 KM BM0048'(4.00 MI) TO A PAVED CROSSOVER ON THE LEFT AND A SIGN -TEXAS A AND M BM0048'RIVERSIDE CAMPUS-. TURN LEFT, SOUTHWEST ON THE CROSSOVER FOR 50 M BM0048'(164.0 FT) CROSSING THE EASTBOUND LANES OF HIGHWAY 21 TO THE ENTRANCE BM0048'TO THE CAMPUS AND A PAVED ROAD (BRYAN ROAD). CONTINUE AHEAD, SOUTH, BM0048'ON BRYAN ROAD FOR 1.70 KM (1.05 MI) TO 6TH STREET ON THE RIGHT AND A BM0048'SIGN -FLIGHT MECHANICS LABORATORY ELECTRIC POWER UTILITIES TRAINING BM0048'DIVISION-. TURN RIGHT, WEST, ON 6TH STREET FOR 0.75 KM (0.45 MI) TO BM0048'THE APRON AND THE STATION ON THE RIGHT. BM0048'STATION MARK IS SET IN THE TOP OF A 25-CM SQUARE CONCRETE POST THAT IS BM0048'FLUSH WITH THE GROUND AND 0.3 M (1.0 FT) LOWER THAN 6TH STREET. IT IS BM0048'15.2 M (49.9 FT) NORTH FROM THE CENTER OF 6TH STREET, 10.0 M BM0048'(32.8 FT) EAST FROM THE EAST EDGE OF THE CONCRETE APRON, 15.7 M BM0048'(51.5 FT) SOUTH FROM THE SOUTH EDGE OF A CONCRETE DRIVEWAY, 8.8 M BM0048'(28.9 FT) EAST-NORTHEAST FROM A FIRE HYDRANT, 11.6 M (38.1 FT) BM0048'NORTHEAST FROM A STOP SIGN, AND 12.9 M (42.3 FT) WEST-SOUTHWEST FROM BM0048'THE SOUTHWEST CORNER OF THE BUILDING. BM0048 BM0048 STATION RECOVERY (1994) BM0048 BM0048'RECOVERY NOTE BY US POWER SQUADRON 1994 BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (1998) BM0048 BM0048'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1998 (WCW) BM0048'RECOVERED IN GOOD CONDITION. THE STATION IS LOCATED ABOUT 19 KM BM0048'(11.80 MI) WEST-NORTHWEST FROM CENTRAL COLLEGE STATION, 13 KM (8.05 BM0048'MI) SOUTHWEST FROM CENTRAL BRYAN, AT THE RIVERSIDE CAMPUS OF THE TEXAS BM0048'A AND M UNIVERSITY, EAST FROM A CONCRETE APRON AREA (FORMER RUNWAY BM0048'17R-35L) AND NORTH FROM SIXTH STREET. NOTE THE FORMER BRYAN ARMY BM0048'AIRFIELD IS CLOSED. OWNERSHIP--TEXAS A AND M UNIVERSITY, ATTENTION BM0048'AM6-BLDG 7535, COLLEGE STATION TX 77840. FOR PERMISSION TO USE THIS BM0048'STATION CONTACT JAN TIMM, MAINTENANCE AND OPERATIONS, PHONE BM0048'409-845-6270 DURING 8.00A-4.30P BUSINESS HOURS. TO REACH THE STATION BM0048'FROM THE NORTH SIDE OF BRYAN AT THE STATE HIGHWAY 21 OVERPASS OVER BM0048'STATE HIGHWAY 6, GO WEST ON STATE HIGHWAY 21 (SAN JACINTO AVE) FOR A BM0048'TOTAL OF 13.2 KM (8.20 MI) PASSING FARM ROAD 2818 AT 5.6 KM (3.45 MI) BM0048'AND PASSING A HIGHWAY BRIDGE ON LEFT AT 12.2 KM (7.60 MI) TO A BM0048'CROSSOVER ON LEFT. FOLLOW THE CROSSOVER TO REVERSE DIRECTION AND GO BM0048'EAST ON STATE HIGHWAY 21 FOR 0.65 KM (0.40 MI) TO AN EXIT ON RIGHT. BM0048'BEAR RIGHT ONTO THE EXIT TO STATE HIGHWAY 47 AND GO SOUTHEAST FOR 1.3 BM0048'KM (0.80 MI) TO A CROSSROAD. TURN RIGHT ONTO THE RIVERSIDE CAMPUS BM0048'ENTRANCE DRIVE AND GO SOUTHWEST FOR 0.2 KM (0.10 MI) TO A GATE THAT BM0048'CLOSES ALLOWING ONLY EGRESS AFTER 6 PM. CONTINUE FORWARD ON FIFTH BM0048'STREET AND GO SOUTHWEST THEN WEST FOR 0.45 MI (0.72 KM) TO THE FIRST BM0048'CROSSROAD. TURN LEFT AND GO SOUTH ON BRYAN ROAD FOR 0.08 KM (0.05 MI) BM0048'TO A ROAD RIGHT AND SMETANA AZIMUTH MARK AHEAD RIGHT. TURN RIGHT AND BM0048'GO WEST ON SIXTH STREET FOR 0.5 KM (0.30 MI) TO CROSSROAD AVENUE C AND BM0048'THE MAINTENANCE OFFICE TO THE RIGHT, 0.65 KM (0.40 MI) NORTH AT THE BM0048'JUNCTION OF AVENUE C AND SECOND STREET. CONTINUE FORWARD ON SIXTH BM0048'STREET AND GO WEST FOR 0.25 KM (0.15 MI) TO A CONCRETE AREA AHEAD AND BM0048'STATION ON RIGHT. THE MARK IS A CGS TRIANGULATION DISK IN A 30 CM (12 BM0048'IN) SQUARED CONCRETE POST IN A LOW GRASSY AREA THAT RECEIVES SURFACE BM0048'DRAINAGE AND IS PRONE TO FLOODING. THE STATION IS LOCATED ABOUT 15.3 M BM0048'(50.2 FT) NORTH FROM SIXTH STREET CENTER, 10.0 M (32.8 FT) EAST FROM BM0048'THE EAST EDGE OF CONCRETE, 15.7 M (51.5 FT) SOUTH FROM THE SOUTH EDGE BM0048'OF A CONCRETE DRIVEWAY, 8.8 M (28.9 FT) EAST-NORTHEAST FROM A FIRE BM0048'HYDRANT WITH PLASTIC NGS WITNESS POST, 11.6 M (38.1 FT) NORTHEAST FROM BM0048'A STOP SIGN, 12.9 M (42.3 FT) WEST-SOUTHWEST FROM THE SOUTHWEST CORNER BM0048'OF BUILDING NUMBER 7061, 43.2 M (141.7 FT) WEST FROM SMETANA RM 1 AND BM0048'45.0 M (147.6 FT) SOUTHEAST FROM SMETANA RM 2. THE MARK IS FLUSH WITH BM0048'THE GROUND AND ABOUT 0.3 M (1.0 FT) LOWER THAN SIXTH STREET. BM0048 BM0048 STATION RECOVERY (2001) BM0048 BM0048'RECOVERY NOTE BY TEXAS DEPARTMENT OF TRANSPORTATION 2001 (WEH) BM0048'STATION, RM 1, AND AZIMUTH MARK RECOVERED IN GOOD CONDITION, RM 2 NOT BM0048' BM0048'RECOVERED AFTER CURSORY SEARCH. MANDATORY CONTACT BEFORE OCCUPYING BM0048'STATION IS JAN TIMM, EIGHT THIRTY TO FOUR THIRTY BM0048'LOCAL TIME. BM0048 BM0048 STATION RECOVERY (2002) BM0048 BM0048'RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2002 (FG) BM0048'RM 2 NOT RECOVERED. RM 1 AND AZIMUTH MARK RECOVERED IN GOOD BM0048'CONDITION. BM0048 BM0048 STATION RECOVERY (2004) BM0048 BM0048'RECOVERY NOTE BY TEXAS DEPARTMENT OF TRANSPORTATION 2004 (WDW) BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (2005) BM0048 BM0048'RECOVERY NOTE BY TEXAS DEPARTMENT OF TRANSPORTATION 2005 (WDW) BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (2005) BM0048 BM0048'RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2005 (FJO) BM0048'THE PERSON TO CONTACT IS NOW BRENDA HEFNER (979-845-6270). THE FRONT BM0048'GATE IS OPEN FROM 0630 TO 1830. BM0048 BM0048 STATION RECOVERY (2007) BM0048 BM0048'RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2007 (SRS) BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (2009) BM0048 BM0048'RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2009 (SRS) BM0048'RECOVERED IN GOOD CONDITION. BM0048 BM0048 STATION RECOVERY (2011) BM0048 BM0048'RECOVERY NOTE BY TEXAS DEPARTMENT OF TRANSPORTATION 2011 (DLZ) BM0048'RECOVERED IN GOOD SHAPE. *** retrieval complete. Elapsed Time = 00:00:02