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 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
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
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
Site Number: 389
Current Site Name: TSUKUBA
Location: TSUKUBA, IBARAKI, JAPAN
Monument Occupying Occupation Starting Ending Number System Designator Date DateNo Previous 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