VERNAL SITE INFORMATION

SITE INFORMATION

Site Number: 413
Current Site Name: VERNAL
Other Site Name:
Location: VERNAL, UT
Geographic Region: NORTH AMERICA
Tectonic Plate: NORTH AMERICAN

Primary Scientific Purposes: MEASUREMENTS SUPPORTING THE DETERMINATION OF REGIONAL DEFORMATION AND INTERCOMPARISON OF MEASUREMENT TECHNIQUES.

Site Description: THE STATION IS LOCATED ON THE ABANDONED SITE OF THE UINTA SEISMOLOGICAL OBSERVATORY IN NORTHEAST UTAH. THE SITE WAS DESTROYED WHEN THE TEMPORARY OBSERVATORY LOCATION WAS RETURNED TO THE BUREAU OF LAND MANAGEMENT, THUS MAKING SEVERAL YEARS OF DATA USELESS. THE PROJECT HAS RECONSTRUCTED THE SITE. THE SITE IS NOW EQUIPPED WITH A UNIVERSAL PAD COMPATIBLE FOR OCCUPATION BY TLRS OR MV SYSTEMS.

Site Topo Map: VERNAL SOUTHEAST, UTAH. N4015-W10930/7.5, 1964. U.S.G.S., RESTON, VA 22092

GEOLOGICAL INFORMATION

Geological Province: UINTA BASIN

Local Geology: DUCHESNE RIVER FORMATION. TERTIARY SEDIMENTS-SHALES, CONGLOMERATES, AND SANDSTONES. BEDROCK-MORRISON SANDSTONE (JURASSIC).

Comments: NONE

MONUMENT INFORMATION

Site Number: 413
Current Site Name: VERNAL
Location: VERNAL, UT
Number of Observing Monuments: 1
Surveyed into National Network? NO

Monument Number: 7290
Type of Monument: NASA BRASS DISK
Monument Inscription: VERNAL NCMN 1985
Systems Using Monument: TLRS AND MOBILE VLBI

Latitude: N 40 19' 37.05178"
Longitude: W 109 34' 14.55374"
Elevation: 1590.810 meters
Height Above Ellipsoid: 1590.805 meters
Survey Source/Date: BFEC / 30-MAR-89
Datum/Ellipsoid: NAD 1983/GRS 80

Comments: THIS MONUMENT IS IN THE NEW UNIVERSAL PAD THAT REPLACES THE DESTROYED MONUMENT.

Differential Coordinates FROM Observing Monument 7290 TO Reference Monuments and Other Observing Monuments

Data Source: BFEC

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

  --    VERNAL 7290 A                            1.4699     -1.5541     -1.1440
  --    VERNAL 7290 B                            0.2160     -2.9592     -3.1949
  --    VERNAL 7290 C                           -2.2833     -1.9493     -3.0588
  --    VERNAL 7290 D                           -2.3043     -0.4903     -1.4498
  --    VERNAL NCMN AZ MARK 1981               274.7157    658.2296    868.5810
  --    VERNAL NCMN RM 1                        43.4296     37.9121     61.5197
  --    VERNAL NCMN RM 2                        60.6254    -63.0970    -48.0256
  --    VERNAL NCMN RM 3                       -72.2830      3.3125    -27.4310

 Mon.
Number         Monument Inscription            North        East         Up

  --    VERNAL 7290 A                           -1.5012      1.9056      0.0006
  --    VERNAL 7290 B                           -4.1932      1.1948      0.0029
  --    VERNAL 7290 C                           -4.0155     -1.4984      0.0038
  --    VERNAL 7290 D                           -1.9038     -2.0069      0.0024
  --    VERNAL NCMN AZ MARK 1981
  --    VERNAL NCMN RM 1                        79.4322     28.2213      1.4888
  --    VERNAL NCMN RM 2                       -61.9451     78.2586     -1.2376
  --    VERNAL NCMN RM 3                       -34.5617    -69.2168     -1.6725

MONUMENT INFORMATION

(Continued)

Site Number: 413
Current Site Name: VERNAL
Location: VERNAL, UT

Monument Number: 7892
Type of Monument: NGS STATION DISK
Monument Inscription: VERNAL NCMN 1981
Systems Using Monument: TLRS AND MOBILE VLBI

Latitude: N 40 19' 36.59"
Longitude: W 109 34' 15.1"
Elevation: 1593.260 meters
Height Above Ellipsoid: meters
Survey Source/Date: SOLUTION FROM THE FIRST TLRS OCCUPATION / 01-JUN-82
Datum/Ellipsoid: UNKNOWN

Comments: THIS MONUMENT WAS DESTROYED DURING THE OBSERVATORY TEAR DOWN.

Differential Coordinates FROM Observing Monument 7892 TO Reference Monuments and Other Observing Monuments

Data Source:

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

X, Y, Z Differential Coordinate Information Not Available

 Mon.
Number         Monument Inscription            North        East         Up

North, East, Up Differential Coordinate Information Not Available

VERNAL SITE SKETCH

PREVIOUS OCCUPATION INFORMATION

Site Number: 413
Current Site Name: VERNAL
Location: VERNAL, UT

SLR OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7892        TLRS-1      78921101     07-MAY-81    17-JUN-81
  7892        TLRS-1      78921102     31-MAY-82    21-JUL-82

VLBI OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7290         MV-2       72905201     30-MAR-86    31-MAR-86
  7290         MV-3       72905302     06-MAY-87    07-MAY-87
  7290         MV-2       72905203     24-APR-88    26-APR-88
  7290         MV-3       72905304     19-OCT-88    21-OCT-88
  7290         MV-2       72905205     24-APR-89    26-APR-89
  7290         MV-2       72905206     20-OCT-90    22-OCT-90