TSUKUBA SITE INFORMATION

SITE INFORMATION

Site Number: 389
Current Site Name: TSUKUBA
Other Site Name:
Location: TSUKUBA, IBARAKI, JAPAN
Geographic Region: PACIFIC
Tectonic Plate: EURASIAN

Primary Scientific Purposes: MEASUREMENTS SUPPORTING THE DETERMINATION OF INTERNAL PLATE MOTION, CONTROL OF GEODETIC NETWORK IN JAPAN, AND MONITORING OF SEA LEVEL.

Site Description: THE STATION IS LOCATED AT THE GEOGRAPHICAL SURVEY INSTITUTE (GSI), MINISTRY OF CONSTRUCTION. A TRANSPORTABLE 5-METER ANTENNA IS USED FOR JUST VLBI MEASUREMENTS. IT IS BASICALLY INSTALLED AT THIS SITE AND HAS BEEN CARRIED TO OTHER SITES: SHINTOMI (MIYAZAKI), CHICHIJIMA (TITIJIMA), SHINTOTSUKAWA, AND MIZUSAWA. THE GPS CIGNET STATION IS ABOUT 50 METERS FROM THIS ANTENNA.

Site Topo Map: NJ-54-24-16-3 (GSI)

GEOLOGICAL INFORMATION

Geological Province: MIDDLE TO UPPER PLEISTOCENE VOLCANIC TEPHRA

Local Geology: ORIGINALLY VOLCANIC ASH, PUMICE, ETC. MOST OF THEM WEATHERED TO FORM SO-CALLED KANTO LOAM. VOLCANIC EJECTA WERE PROVIDED BY PLEISTOCENE/ACTIVE VOLCANOES SUCH AS HAKONE, AKAGI, AND OTHERS. HOWEVER, AT PRESENT, NO ACTIVE VOLCANISM IS WITHIN 80 KILOMETERS.

Comments: NONE

MONUMENT INFORMATION

Site Number: 389
Current Site Name: TSUKUBA
Location: TSUKUBA, IBARAKI, JAPAN
Number of Observing Monuments: 1
Surveyed into National Network? YES

Monument Number: 7311
Type of Monument: INTERSECTION OF AZ/EL AXES
Monument Inscription: NONE
Systems Using Monument: 5-METER TRANSPORTABLE ANTENNA

Latitude: N 36 06' 08.804"
Longitude: E 140 05' 24.943"
Elevation: 29.210 meters
Height Above Ellipsoid: 30.170 meters
Survey Source/Date: GEOGRAPHICAL SURVEY INSTITUTE / 01-OCT-82
Datum/Ellipsoid: TOKYO DATUM/BESSEL

Comments: A= 6377397.155 F= 1/299.152813

Differential Coordinates FROM Observing Monument 7311 TO Reference Monuments and Other Observing Monuments

Data Source: TIE FROM IGS MAIL

Differential Coordinates

 Mon.
Number         Monument Inscription              X           Y           Z

  --    GPS MARK                                 -9.814     -31.622      27.107
  --    VLBI MARKER                               2.497      -2.089      -2.375

 Mon.
Number         Monument Inscription            North        East         Up

North, East, Up Differential Coordinate Information Not Available

TSUKUBA SITE SKETCH

PREVIOUS OCCUPATION INFORMATION

Site Number: 389
Current Site Name: TSUKUBA
Location: TSUKUBA, IBARAKI, JAPAN

SLR OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

No Previous Occupations

VLBI OCCUPATIONS

Monument    Occupying    Occupation    Starting      Ending
 Number       System     Designator      Date         Date

  7311         JMV        73114401     18-JUL-84    19-JUL-84
  7311         JMV        73114402     08-AUG-85    09-AUG-85
  7311         JMV        73114403     17-FEB-86    18-FEB-86
  7311         JMV        73114404     23-FEB-87    24-FEB-87
  7311         JMV        73114405     09-FEB-88    10-FEB-88
  7311         JMV        73114406     25-AUG-88    26-AUG-88
  7311         JMV        73114407     29-AUG-89    30-AUG-89