MOUNT HOPKINS SITE INFORMATION

SITE INFORMATION

Site Number: 28
Current Site Name: MOUNT HOPKINS
Other Site Name:
Location: MOUNT HOPKINS, AZ
Geographic Region: NORTH AMERICA
Tectonic Plate: PACIFIC

Primary Scientific Purposes: MEASUREMENTS SUPPORTING THE DETERMINATION OF REGIONAL DEFORMATION.

Site Description: THE SITE IS LOCATED AT THE SMITHSONIAN ASTRONOMICAL OBSERVATORY IN MOUNT HOPKINS, ARIZONA. HOMLAS (GODDARD MOBILE LASER) WAS LOCATED AT THE OBSERVATORY. HOMLA2 WAS A RELOCATION OF HOMLAS. HOPLAS WAS AN SAO LASER LOCATED IN THE OBSERVATORY. IN ADDITION, A MONUMENT IN THE VICINITY WAS OCCUPIED BY TLRS-1. THE SITE HAS BEEN ABANDONED.

Site Topo Map: TOMBSTONE, ARIZONA. 1952, 7.5 QUAD, U.S.G.S., RESTON, VA 22092

GEOLOGICAL INFORMATION

Geological Province: BASIN AND RANGE

Local Geology: CRETACEOUS VOLCANICS (GRANITES AND QUARTZ MONZONITE) AND INTRUSIVES

Comments: NONE

MONUMENT INFORMATION

Site Number: 28
Current Site Name: MOUNT HOPKINS
Location: MOUNT HOPKINS, AZ
Number of Observing Monuments: 2
Surveyed into National Network? NO

Monument Number: 7888
Type of Monument: NGS STATION DISK
Monument Inscription: TLRS FEBRUARY 1982 7888
Systems Using Monument: TLRS

Latitude: N 31 41' 06.28"
Longitude: W 110 52' 41.6"
Elevation: 2334.450 meters
Height Above Ellipsoid: meters
Survey Source/Date: PRELIMINARY ESTIMATE BY TLRS / 19-APR-82
Datum/Ellipsoid: UNKNOWN

Comments: THIS MONUMENT WAS A TEMPORARY MARKER.

Differential Coordinates FROM Observing Monument 7888 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

MONUMENT INFORMATION

(Continued)

Site Number: 28
Current Site Name: MOUNT HOPKINS
Location: MOUNT HOPKINS, AZ

Monument Number: 7921
Type of Monument: AXES OF ROTATION OF SAO LASER
Monument Inscription: NONE
Systems Using Monument: HOPLAS (SAO LASER)

Latitude: N 31 41' 02.8954"
Longitude: W 110 52' 38.682"
Elevation: 2383.387 meters
Height Above Ellipsoid: meters
Survey Source/Date: NASA-GSFC / 01-FEB-77
Datum/Ellipsoid: NAD 1927/CLARKE 1866

Comments: NONE

Differential Coordinates FROM Observing Monument 7921 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

MOUNT HOPKINS SITE SKETCH

PREVIOUS OCCUPATION INFORMATION

Site Number: 28
Current Site Name: MOUNT HOPKINS
Location: MOUNT HOPKINS, AZ

SLR OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7888        TLRS-1      78881101     25-JAN-82    16-APR-82
  7921        SAO-4       79214301     10-FEB-68    05-MAR-82

VLBI OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

No Previous Occupations