New Horizons Kuiper Belt Extended Mission 1 (KEM1) Radio Science Experiment (REX) Tracking and Navigation Files (TNF), Version 1.0

This data set contains Tracking and Navigation Files (TNF) created for
the New Horizons Radio Science Experiment (REX) instrument during the
KEM1 ENCOUNTER mission phase. The collection includes TRK-2-34
radiometric tracking data files and TRK-2-23 media calibration files.
The media calibration data that are provided by the Radiometric Modeling
and Calibration Subsystem (RMC). These calibrations are used by project
navigation and radio science teams, multi-mission spacecraft navigation,
and other investigators to improve the accuracy of spacecraft orbit
determination and radio science investigations by compensating for the
media transmission effects of the Earth's troposphere and ionosphere on
the propagation of radiometric signals.

This version includes data acquired by the spacecraft between 08/14/2018
and 04/30/2022. It only includes data downlinked before 05/01/2022.
Future datasets may include more data acquired by the spacecraft after
08/13/2018 but downlinked after 04/30/2022.

The REX datasets over the mission include calibrations using known radio
sources, Jupiter, and cold sky measurements; operational readiness tests
(ORTs); internal test pattern calibration; and prime science radiometry
and occultation observations during the Arrokoth Encounter.

These data were migrated from the previously released PDS3 data set
NH-A-REX-3-KEM1-V5.0.