Coordinates of the Usuda 64 m antenna is represented by a piece-wise
linear model due to co-seismic and post-seismic motion of the station.
Start(UTC) End(UTC) X[m] Y[m] Z[m] Vx[m/year] Vy[m/year] Vz[m/year] Epoch
2000-01-01T00:00:00 2004-09-05T00:00:00 -3855355.43858 3427427.58065 3740971.08572 -3.919143202E-03 2.530299849E-03 -1.076692303E-02 2015.0
2004-09-05T00:00:00 2011-03-11T05:46:18 -3855355.43138 3427427.58101 3740971.11023 -3.221382185E-03 2.564723163E-03 -8.392285367E-03 2015.0
2011-03-11T05:46:18 2011-09-14T00:00:00 -3855356.02541 3427427.02278 3740971.37786 -1.192160375E-01 -8.839120306E-02 4.921689102E-02 2015.0
2011-09-14T00:00:00 2012-11-01T00:00:00 -3855355.77008 3427427.17564 3740971.24342 -4.179685436E-02 -4.204158952E-02 8.453878975E-03 2015.0
2012-11-01T00:00:00 2014-06-04T00:00:00 -3855355.74598 3427427.22406 3740971.23093 -3.066195650E-02 -1.967172890E-02 2.679618798E-03 2015.0
2014-06-04T00:00:00 2017-06-01T00:00:00 -3855355.73976 3427427.22816 3740971.22988 -1.987260633E-02 -1.255969920E-02 8.681594330E-04 2015.0
2017-06-01T00:00:00 present -3855355.74995 3427427.22262 3740971.23848 -1.565636885E-02 -1.026621762E-02 -2.691564348E-03 2015.0
Currently a fixed bias vector model between the IGS and IVS points (IGS - IVS bias vector: [92.3838, 4.9813, 49.1096] [m]) is assumed.
This model will be updated regularly by the results of post-seismic geodetic VLBI campaign.
One-sigma position accuracy of each component seems to be about a few centimeters.
Usuda 64-m antenna position X (click to enlarge)
Usuda 64-m antenna position Y (click to enlarge)
Usuda 64-m antenna position Z (click to enlarge)
Usuda 64 m antenna has a DSN station id of DSS-48.
Geodetic coorinates (GRS80) of the antenna refference point and the height above EGM96 geoid at the epoch of 2021.0 are as follows:
| Latitude (GRS80) |
36.1324037°N (36° 7' 56.65" N) |
| Longitude (GRS80) |
138.362773283333° E (138° 21' 45.98" E) |
| Ellipsoidal height (GRS80) |
1532.8084 [m] |
| Orthometric height (height above EGM96 geoid) |
1490.1884 [m] |
| Geoid height (= Ellipsoidal height - Orthometric height) |
42.620 [m] |
The height of the weather station at Usuda is 34 meter lower than that of the reference point of the Usuda 64 m antenna. Barometric pressure shall be calibrated by the user of the
weather data from Usuda.
Downlink horizon mask for Usuda 64m antenna: UDSC_horizon_mask.xls.
Position and velocity of the Misasa 54 m antenna
Start(UTC) End(UTC) X[m] Y[m] Z[m] Vx[m/year] Vy[m/year] Vz[m/year] Epoch
2019-01-01T00:00:00 present -3854373.567 3427836.359 3741813.048 -1.565636885E-02 -1.026621762E-02 -2.691564348E-03 2015.0
Misasa 54 m antenna has a DSN station id of DSS-30. Approximate position of the Misasa 54 m antenna was measured from the IGS refeference antennas
at Usuda and Misasa with Total Station on September 6, 2019. Although the 1-sigma accuracy of the measurement was a few millimeter levels, repeatability
is unknown because measurements have only been taken once. Therefore 5 cm of formal error is assumed when it is used for the other analysis.
Geodetic coorinates (GRS80) of the antenna refference point and the height above EGM96 geoid at the epoch of 2021.0 are as follows:
| Latitude (GRS80) |
36.1409845055556°N (36° 8' 27.54" N) |
| Longitude (GRS80) |
138.352128069444°E (138° 21' 7.66" E) |
| Ellipsoidal height (GRS80) |
1656.0159 [m] |
| Orthometric height (height above EGM96 geoid) |
1613.4029 [m] |
| Geoid height (= Ellipsoidal height - Orthometric height) |
42.613 [m] |
The height of the weather station at Misasa is 30.5 meter lower than that of the reference point of the Misasa 54 m antenna. Barometric pressure shall be calibrated by the user of the weather data from Misasa.
Downlink horizon mask for Misasa 54m antenna: Misasa_horizon_mask.xls.
Position and velocity of the Uchinoura 34 m antenna
The coordinate of the Uchinoura 34 m antenna has not been affected by the earthquake.
Start(UTC) End(UTC) X[m] Y[m] Z[m] Vx[m/year] Vy[m/year] Vz[m/year] Epoch
2008-01-20T00:00:00 present -3586229.5989 4114103.6654 3290224.6120 -0.03177 -0.00748 -0.01147 2015.0
Uchinoura 34 m antenna has a DSN station id of DSS-38. One-sigma position accuracy of each component is about 3 cm.
Geodetic coorinates (GRS80) of the antenna refference point and the height above EGM96 geoid at the epoch of 2021.0 are as follows:
| Latitude (GRS80) |
31.2543088416667°N (31° 15' 15.51" N) |
| Longitude (GRS80) |
131.078390816667°E (131° 4' 42.21" E) |
| Ellipsoidal height (GRS80) |
375.7474 [m] |
| Orthometric height (height above EGM96 geoid) |
346.4094 [m] |
| Geoid height (= Ellipsoidal height - Orthometric height) |
29.338 [m] |
The height of the weather station
at Uchinoura is 23.95 meter lower than that of the reference point of the Uchinoura 34 m antenna. Barometric pressure shall be calibrated by the user
of the weather data from Uchinoura.
Downlink horizon mask for Uchinoura 34m antenna: USC_horizon_mask.xls.
Position of the Uchinoura 20 m antenna
Start(UTC) End(UTC) X[m] Y[m] Z[m] Vx[m/year] Vy[m/year] Vz[m/year] Epoch
2008-01-20T00:00:00 present -3586293.8662 4113888.6263 3290452.1716 -0.03177 -0.00748 -0.01147 2015.0
Uchinoura 20 m antenna has a DSN station id of DSS-37. Position accuracy of the Uchinoura 20 m antenna is unknown.
