urn:nasa:pds:nh_rex:kem1_tnf 1.0 1.19.0.0 Product_Collection Linscott, I. Kahan, D.; Hirsch, B. 2025 10.26007/qq2y-g712 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. 2024-12-02 1.0 Created during PDS4 migration by PDS-SBN (B. Hirsch) 2018-09-08T23:25:17Z 2022-01-12T23:15:05Z Calibration Raw Radio Radio Science NEW HORIZONS KUIPER BELT EXTENDED MISSION Mission urn:nasa:pds:context:investigation:mission.new_horizons_kem1 collection_to_investigation NEW HORIZONS Host urn:nasa:pds:context:instrument_host:spacecraft.nh is_instrument_host RADIO SCIENCE EXPERIMENT Instrument urn:nasa:pds:context:instrument:nh.rex is_instrument NASA Deep Space Network Radio Science Instrument urn:nasa:pds:context:instrument:dsn.rss is_instrument (486958) Arrokoth Trans-Neptunian Object urn:nasa:pds:context:target:trans-neptunian_object.486958_2014_mu69 collection_to_target urn:nasa:pds:context:resource:resource.nh_rex_colxn_kem1_tnf_online has_resource urn:nasa:pds:context:resource:resource.nh_rex_online has_resource urn:nasa:pds:nh_rex:kem1_tnf:overview::1.0 collection_to_document Overview Document for REX KEM1 Encounter TNF Collection urn:nasa:pds:nh_documents:rex collection_to_document REX Document Collection urn:nasa:pds:nh_documents:mission collection_to_document New Horizon Mission Document Collection urn:nasa:pds:nh_rex:kem1_raw::1.0 collection_to_data REX KEM1 Encounter Raw Data Collection urn:nasa:pds:nh_rex:kem1_cal::1.0 collection_to_calibration REX KEM1 Encounter Calibrated Data Collection Data collection_kem1_tnf.csv 0 PDS DSV 1 255 Carriage-Return Line-Feed Comma 2 0 Member Status 1 ASCII_String 1 LIDVID_LID 2 ASCII_LIDVID_LID 255 inventory_has_member_product