MAZATLAN SITE INFORMATION

SITE INFORMATION

Site Number: 71
Current Site Name: MAZATLAN
Other Site Name:
Location: MAZATLAN, SINALOA, MEXICO
Geographic Region: NORTH AMERICA
Tectonic Plate: NORTH AMERICAN

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

Site Description: THE SITE IS LOCATED 7.5 MILES NORTH OF MAZATLAN, MEXICO. MAZATLAN IS ON THE WEST COAST OF MEXICO JUST SOUTH OF THE TROPIC OF CANCER. THE LASER STATION IS EQUIPPED WITH ONE MONUMENTED PAD THAT WAS OCCUPIED BY THE MOBLAS-6 FROM THE SUMMER OF 1983 UNTIL 1991.

Site Topo Map: UNKNOWN

GEOLOGICAL INFORMATION

Geological Province: BURIED RANGES (SINALOA DELTA)

Local Geology: METAMORPHIC QUARTZ-RICH GNEISS

Comments: NONE

MONUMENT INFORMATION

Site Number: 71
Current Site Name: MAZATLAN
Location: MAZATLAN, SINALOA, MEXICO
Number of Observing Monuments: 1
Surveyed into National Network? NO

Monument Number: 7122
Type of Monument: STANDARD NASA DISK
Monument Inscription: 7122-1983
Systems Using Monument: MOBLA/TLRS

Latitude: N 23 20' 34.25950"
Longitude: W 106 27' 32.70061"
Elevation: meters
Height Above Ellipsoid: 30.867 meters
Survey Source/Date: BFEC HAVAGO ADJUSTMENT / 15-NOV-88
Datum/Ellipsoid: WGS 84 (TRANSFORMED FROM CDSLR OBSERVATIONS)

Comments: NONE

Differential Coordinates FROM Observing Monument 7122 TO Reference Monuments and Other Observing Monuments

Data Source: BFEC ADJUSTMENT 88-11-15

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

  --    7122 RM 1 (1983)                        15.8453    -12.2278    -16.5974
  --    7122 RM 2 (1983)                       -10.8306      2.6747     -1.4663
  --    7122 RM 3 (1983)                         7.4296      6.1804     18.0661
  --    MOBLAS 6 REFERENCE POINT 1983/1988      -0.8314     -2.8000      1.2639
  --    REFERENCE POINT ON 7122 PIER A (198    948.2651    594.1051   1927.9751
  --    REFERENCE POINT ON 7122 PIER B (198    260.4340    -54.3569     21.6603
  --    REFERENCE POINT ON 7122 PIER C (198   -148.9756     -8.1494   -126.0208

 Mon.
Number         Monument Inscription            North        East         Up

  --    7122 RM 1 (1983)                       -18.1065     18.6605      0.0685
  --    7122 RM 2 (1983)                        -1.5458    -11.1447     -0.1187
  --    7122 RM 3 (1983)                        19.7700      5.3740     -0.2164
  --    MOBLAS 6 REFERENCE POINT 1983/1988       0.0031     -0.0040      3.1825
  --    REFERENCE POINT ON 7122 PIER A (198
  --    REFERENCE POINT ON 7122 PIER B (198
  --    REFERENCE POINT ON 7122 PIER C (198

MAZATLAN SITE SKETCH

PREVIOUS OCCUPATION INFORMATION

Site Number: 71
Current Site Name: MAZATLAN
Location: MAZATLAN, SINALOA, MEXICO

SLR OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7122       MOBLAS-6     71220601     01-MAR-83    01-MAR-84
  7122       MOBLAS-6     71220602     29-MAY-84    15-DEC-85
  7122       MOBLAS-6     71220603     16-DEC-85    21-JAN-87
  7122       MOBLAS-6     71220604     28-JAN-87    16-AUG-88
  7122       MOBLAS-6     71220605     17-AUG-88    11-JAN-89
  7122       MOBLAS-6     71220606     12-JAN-89    22-JUN-89
  7122       MOBLAS-6     71220607     23-JUN-89    03-OCT-89
  7122       MOBLAS-6     71220608     04-OCT-89    20-DEC-90
  7122       MOBLAS-6     71220609     21-DEC-90    13-APR-91
  7122        TLRS-4      71221410     10-SEP-92    13-JAN-93

VLBI OCCUPATIONS

Monument Occupying Occupation Starting Ending Number System Designator Date Date