Voyager 2 48 second position vectors data in Heliographic coordinates from the Voyager 2 plasma experiment during the Neptune encounter.

 
Citation Lepping, R.J., VG2-N-POS-5-SUMM-HGCOORDS-48SEC-V1.0, VG2 NEP TRAJECTORY DERIV SUMM HELIOGRAPHIC COORDS 48SEC V1.0, NASA Planetary Data System, 1992.
Digital Object Identifier (DOI) 10.17189/1519982
Data Set Abstract This dataset contains Voyager 2 position vectors relative to the Sun in both cartesian and spherical Heliographic coordinates for the time period when Voyager was near Neptune but not within its magnetosphere. The magnetospheric gap in this dataset occurs from 1989-08-25 02:00 -> 1989-08-26 00:00. Spacecraft position vectors are given in Neptune Longitude System (NLS) coordinates in this interval. The position vectors are given every 48 seconds. The units of the vector components are Au and degrees. Vectors are stored as 4-byte floating point values.
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    Additional Information
    Mission Information VOYAGER
    Data Set Information VG2-N-POS-5-SUMM-HGCOORDS-48SEC-V1.0
    Instrument Host Information VG2
    Instrument Information POS
    Target Information NEPTUNE