MESSENGER RSS Tracking and Navigation File (TRK-2-34 data) Record (TNF)

TNF – Tracking and Navigation File (TRK-2-34 data) Record

Instrument: MESSENGER Radio Science Experiment

PDS Data Set ID: MESS-V/H-RSS-1-EDR-RAWDATA-V1.0

For more information about RSS TNF Products, see the EDR Product SIS.

The Radio Science Subsystem (RSS) Tracking and Navigation File (TRK-2-34 data) Record (TNF) is the primary output from the MESSENGER closed-loop system. In the TNF about 20 record types are defined, each designed for a particular audience, although it is frequently the case that users need more than one record type. The emphasis of the data is on phase of the transmitted and received signals, with 10 phase counts recorded each second. Each TNF is accompanied by a PDS minimal label that points to a software specification document (dsn_trk_2_34_tnf_sis.pdf) for detailed descriptions of the records and fields.

RSS TNF products have the following file names:

yydddhhmmSC236DSSnn_234.DAT

where:

yydddhhmm = the start time, day of year, hour and minutes

nn = Deep Space Station (DSS) number

14 = Goldstone 70 m antenna

15 = Goldstone 34 m high-efficiency antenna

24 = Goldstone 34 m beam waveguide antenna

25 = Goldstone 34 m beam waveguide antenna

26 = Goldstone 34 m beam waveguide antenna

34 = Canberra 34 m beam waveguide antenna

35 = Canberra 34 m antenna

43 = Canberra 70 m antenna

45 = Canberra 34 m high-efficiency antenna

54 = Madrid 34 m beam waveguide antenna

55 = Madrid 34 m beam waveguide antenna

63 = Madrid 70 m antenna

65 = Madrid 34 m high-efficiency antenna

ALL = all

In ODE, TNF products have the following product IDs:

YYDDDHHMMSC236DSSNN_234