MONUMENT PEAK SITE INFORMATION

SITE INFORMATION

Site Number: 701
Current Site Name: MONUMENT PEAK
Other Site Name:
Location: MOUNT LAGUNA, CA
Geographic Region: CALIFORNIA
Tectonic Plate: PACIFIC

Primary Scientific Purposes: MEASUREMENTS SUPPORTING THE DETERMINATION OF PLATE MOTION, PLATE STABILITY, POLAR MOTION/EARTH ROTATION, REGIONAL DEFORMATION, AND INTERCOMPARISON OF MEASUREMENT TECHNIQUES.

Site Description: THE STATION IS LOCATED ON MONUMENT PEAK IN THE CLEVELAND NATIONAL PARK NEAR PINE VALLEY, CALIFORNIA ONE MILE NORTHWEST OF THE DEACTIVATED MOUNT LAGUNA AIR FORCE RADAR STATION. THE SITE WAS BUILT TO REPLACE THE OTAY MTN. SITE. A MONUMENTED PAD HAS BEEN OCCUPIED BY MOBLAS-4 SINCE SEPTEMBER 1983. A JPL DISK AND A MONUMENT SUITABLE FOR OCCUPATION BY MOBILE VLBI ARE ALSO WITHIN THE SITE FACILITY.

Site Topo Map: MONUMENT PEAK, CALIFORNIA. N3252.5-W11622.5/7.5, 1959, U.S.G.S., RESTON, VA 22092

GEOLOGICAL INFORMATION

Geological Province: PENINSULA RANGES; WEST OF THE SAN ANDREAS FAULT.

Local Geology: PRE-CENOZOIC (GRANITIC AND METAMORPHIC ROCK). THE STATION IS LOCATED ALONG THE EASTERN EDGE OF THE PENINSULA MOUNTAIN RANGE. THE PENINSULA RANGE RUNS PARALLEL TO THE PACIFIC COAST AND CONTINUES SOUTH INTO MEXICO.

Comments: NONE

MONUMENT INFORMATION

Site Number: 701
Current Site Name: MONUMENT PEAK
Location: MOUNT LAGUNA, CA
Number of Observing Monuments: 3
Surveyed into National Network? YES

Monument Number: 7110
Type of Monument: STANDARD NASA DISK
Monument Inscription: ORT STATION 7110 1981
Systems Using Monument: MOBLAS-4

Latitude: N 32 53' 30.23372"
Longitude: W 116 25' 21.55890"
Elevation: meters
Height Above Ellipsoid: 1837.564 meters
Survey Source/Date: BFEC / 30-OCT-92
Datum/Ellipsoid: NAD 1983/GRS 80

Comments: THIS MONUMENT IS THE PERMANENT LOCATION OF MOBLAS-4.

Differential Coordinates FROM Observing Monument 7110 TO Reference Monuments and Other Observing Monuments

Data Source: BFEC

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

 7220   ARIES ORION STA 7220 1981              -14.2854      6.8787     -0.5950
 7274   MONUMENT PEAK NCMN 1983                -11.3935      7.8023      2.5237
  --    7110 PIER A (1990)                     145.7026   -114.2405    -27.6541
  --    7110 PIER B (1988)                    -380.6555   -963.2784  -1658.3201
  --    7110 PIER C (1990)                     -56.4966    -35.7056    -84.0620
  --    LOOKOUT (1988)                         -60.7948    -13.7768    -58.3044
  --    MONUMENT PEAK NCMN NO.1 1983            -0.1390     15.7974     20.4081

 Mon.
Number         Monument Inscription            North        East         Up

 7220   ARIES ORION STA 7220 1981               -0.6074    -15.8549     -0.1592
 7274   MONUMENT PEAK NCMN 1983                  3.1595    -13.6760     -0.2403
  --    7110 PIER A (1990)
  --    7110 PIER B (1988)
  --    7110 PIER C (1990)
  --    LOOKOUT (1988)                         -70.3485    -48.3185      1.4045
  --    MONUMENT PEAK NCMN NO.1 1983            24.7858     -7.1578     -0.7443

MONUMENT INFORMATION

(Continued)

Site Number: 701
Current Site Name: MONUMENT PEAK
Location: MOUNT LAGUNA, CA

Monument Number: 7220
Type of Monument: 10'' X 10'' STEEL PLATE
Monument Inscription: ARIES ORION STA 7220 1981
Systems Using Monument: MOBILE VLBI

Latitude: N 32 53' 30.21403"
Longitude: W 116 25' 22.16871"
Elevation: meters
Height Above Ellipsoid: 1837.406 meters
Survey Source/Date: BFEC / 30-OCT-92
Datum/Ellipsoid: NAD 1983/GRS 80

Comments: THE PLATE HAS TWO PUNCH MARKS. THE CENTER PUNCH IS THE SURVEY REFERENCE POINT.

Differential Coordinates FROM Observing Monument 7220 TO Reference Monuments and Other Observing Monuments

Data Source: BFEC

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

 7110   ORT STATION 7110 1981                   14.2854     -6.8787      0.5950
 7274   MONUMENT PEAK NCMN 1983                  2.8919      0.9236      3.1187
  --    7110 PIER B (1988)                    -366.3701   -970.1572  -1657.7251
  --    LOOKOUT (1988)                         -46.5093    -20.6555    -57.7094
  --    MONUMENT PEAK NCMN NO.1 1983            14.1465      8.9187     21.0031

 Mon.
Number         Monument Inscription            North        East         Up

 7110   ORT STATION 7110 1981                    0.6074     15.8549      0.1592
 7274   MONUMENT PEAK NCMN 1983                  3.7666      2.1790     -0.0812
  --    7110 PIER B (1988)
  --    LOOKOUT (1988)                         -69.7416    -32.4622      1.5668
  --    MONUMENT PEAK NCMN NO.1 1983            25.3918      8.7010     -0.5852

MONUMENT INFORMATION

(Continued)

Site Number: 701
Current Site Name: MONUMENT PEAK
Location: MOUNT LAGUNA, CA

Monument Number: 7274
Type of Monument: STANDARD NGS DISK
Monument Inscription: MONUMENT PEAK NCMN 1983
Systems Using Monument: MOBILE VLBI

Latitude: N 32 53' 30.33627"
Longitude: W 116 25' 22.08490"
Elevation: meters
Height Above Ellipsoid: 1837.325 meters
Survey Source/Date: BFEC / 30-OCT-92
Datum/Ellipsoid: NAD 1983/GRS 80

Comments: A GPS BETWEEN THIS MARK AND OTAY MOUNTAIN (SANDIE NASA 1976) WAS PERFORMED IN 1992. SEE PAGE 421.

Differential Coordinates FROM Observing Monument 7274 TO Reference Monuments and Other Observing Monuments

Data Source: BFEC

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

 7110   ORT STATION 7110 1981                   11.3935     -7.8023     -2.5237
 7220   ARIES ORION STA 7220 1981               -2.8919     -0.9236     -3.1187
  --    7110 PIER B (1988)                    -369.2619   -971.0807  -1660.8437
  --    LOOKOUT (1988)                         -49.4012    -21.5790    -60.8281
  --    MONUMENT PEAK NCMN NO.1 1983           11.25464      7.9951     17.8844

 Mon.
Number         Monument Inscription            North        East         Up

 7110   ORT STATION 7110 1981                   -3.1609     13.6751      0.2402
 7220   ARIES ORION STA 7220 1981               -3.7666     -2.1790      0.0812
  --    7110 PIER B (1988)
  --    LOOKOUT (1988)                         -73.5083    -34.6412      1.6479
  --    MONUMENT PEAK NCMN NO.1 1983            21.6252      6.5221     -0.5040

MONUMENT PEAK SITE SKETCH

PREVIOUS OCCUPATION INFORMATION

Site Number: 701
Current Site Name: MONUMENT PEAK
Location: MOUNT LAGUNA, CA

SLR OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7110       MOBLAS-3     71100301     15-JUL-81    30-JUN-83
  7110       MOBLAS-4     71100402     15-AUG-83    12-NOV-86
  7110       MOBLAS-4     71100403     20-NOV-86    30-APR-88
  7110       MOBLAS-4     71100404     30-APR-88    15-JUN-88
  7110       MOBLAS-4     71100405     16-JUN-88    12-DEC-88
  7110       MOBLAS-4     71100406     13-DEC-88    13-SEP-90
  7110       MOBLAS-4     71100407     14-SEP-90    02-APR-91
  7110       MOBLAS-4     71100408     03-APR-91    05-DEC-91
  7110       MOBLAS-4     71100409     06-DEC-91    14-JAN-92
  7110       MOBLAS-4     71100410     18-JAN-92    09-MAR-92
  7110       MOBLAS-4     71100411     01-MAY-92    31-DEC-99
  7220        TLRS-1      72201101     30-AUG-83    02-NOV-83
  7220        TLRS-1      72201102     28-DEC-84    10-JAN-85
  7220        TLRS-1      72201103     13-JAN-85    27-FEB-85
  7220        TLRS-1      72201104     03-MAR-85    23-MAR-85
  7220        TLRS-1      72201105     24-MAR-85    13-MAY-85
  7274        TLRS-1      72741101     16-MAY-85    18-JUL-85

VLBI OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7220         MV-2       72205201     14-MAY-81    14-MAY-81
  7220         MV-3       72205302     15-OCT-82    18-OCT-82
  7220         MV-3       72205303     27-JUN-83    28-JUN-83
  7220         MV-3       72205304     05-NOV-83    09-NOV-83
  7274         MV-3       72745301     12-APR-84    13-APR-84
  7274         MV-2       72745202     12-JAN-85    13-JAN-85
  7274         MV-2       72745203     26-FEB-85    03-MAR-85
  7274         MV-2       72745204     12-MAY-85    15-MAY-85
  7274         MV-3       72745305     05-NOV-85    06-NOV-85
  7274         MV-3       72745306     09-DEC-85    11-DEC-85
  7274         MV-3       72745307     05-JAN-86    06-JAN-86
  7274         MV-2       72745208     23-FEB-86    24-FEB-86
  7274         MV-2       72745209     07-APR-86    08-APR-86
  7274         MV-2       72745210     17-MAY-86    22-MAY-86
  7274         MV-2       72745211     19-OCT-86    20-OCT-86
  7274         MV-2       72745212     26-OCT-86    30-OCT-86
  7274         MV-3       72745313     10-DEC-86    11-DEC-86
  7274         MV-3       72745314     08-FEB-87    10-FEB-87
  7274         MV-2       72745215     22-MAR-87    23-MAR-87
  7274         MV-2       72745216     14-MAY-87    15-MAY-87
  7274         MV-2       72745217     28-OCT-87    29-OCT-87
  7274         MV-2       72745218     05-DEC-87    06-DEC-87
  7274         MV-3       72745319     03-MAY-88    05-MAY-88
  7274         MV-2       72745220     29-OCT-88    31-OCT-88
  7274         MV-2       72745221     18-JAN-89    20-JAN-89
  7274         MV-2       72745222     14-MAY-89    16-MAY-89
  7274         MV-2       72745223     09-NOV-90    11-NOV-90