# VG2 URA TRAJECTORY DERIVED SUMM U1 COORDS 48SEC V1.0 (PDS)

**NSSDCA ID:** PSFP-00666

**Availability:** Archived at NSSDC, accessible from elsewhere

## Description

This description was generated automatically using input from the Planetary Data System.

This dataset contains Voyager 2 spacecraft position vectors relative to Uranus in minus U1 coordinates. The U1 or Uranus West Longitude System coordinate system is a planetocentric system fixed to Uranus which is rotating with a 17.24 hour period. The prime meridian of the this system is defined such that at 1986-01-24T18:00:00.000 the Voyager 2 spacecraft was at 302 degrees west longitude (58 degrees east longitude). For the PDS archive dataset, the original data archive has been converted to an east longitude (righthanded) coordinate system minus U1 (-U1). This is achieved by subtracting the U1 longitude from 360.0 degrees. The data are provided in units of Uranian radii which was taken to be 25,600km by the Voyager project. Angles are given in degrees. Both cartesian and spherical coordinates are provided. The Cartesian coordinate system is defined as follows: - X lies in the equatorial plane of Uranus, positive away from the planet, and through the prime meridian at the reference epoch. - Z is parallel to the Uranus spin axis, positive in the southern hemisphere in ecliptic (orbital) coordinates, and, - Y is Z x X (righthanded) The Cartesian coordinate system does not rotate with the planet. SAMPLING_PARAMETER_NAME = TIME SAMPLING_PARAMETER_RESOLUTION = 96.0 MINIMUM_SAMPLING_PARAMETER = N/A MAXIMUM_SAMPLING_PARAMETER = N/A SAMPLING_PARAMETER_INTERVAL = 48.0 MINIMUM_AVAILABLE_SAMPLING_INT = 48.0 SAMPLING_PARAMETER_UNIT = SECONDS DATA_SET_PARAMETER_NAME = POSITION VECTOR NOISE_LEVEL = N/A DATA_SET_PARAMETER_UNIT = URANUS RADII (25,600km) OR DEGREES

These data are available on-line from the Planetary Data System (PDS) at:

https://pds-ppi.igpp.ucla.edu/data/VG2-U-POS-5-SUMM-U1COORDS-48SEC-V1.0/

## Alternate Names

- VG2-U-POS-5-SUMM-U1COORDS-48SEC-V1.0

## Discipline

- Planetary Science: Fields and Particles

## Additional Information

### Spacecraft

Questions and comments about this data collection can be directed to:
Dr. Edwin V. Bell, II

## Personnel

Name | Role | Original Affiliation | E-mail |
---|

Dr. Ronald P. Lepping | General Contact | NASA Goddard Space Flight Center | ronald.p.lepping@gmail.com |