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Spacecraft On-Board ephemeris data/orbit files to be read via SDP Toolkit, Binary Format
Entry ID: AM1EPHN0

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Abstract: AM1EPHN0 is the Terra 2-hour spacecraft ephemeris data file in native format. The file name format is the following:
AM1EPHN0.Ayyyyddd.hhmm.vvv.yyyydddhhmmss where from left to right: 0 = Spacecraft Level 0; N = Native format; EPH = Ephemeris; AM1 = Satellite (Terra); yyyy = data year, ddd = Julian data day, hh = data hour, mm = data minute; vvv = Version ID; yyyy = production year, ddd = Julian production day, hh = production hour, mm = production minute, and ss = production second. Data set information:

Related URL
Link: View Related Information
Description: Access NASA LANCE Near Real time Collection 6 data set.

Link: View Related Information
Description: Access Collection 6 data set from the MODAPS LANCE-MODIS page(FTP server).

Link: View Related Information
Description: MODIS Science Team

Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Version: 6NRT

Science Keywords

ISO Topic Category

TERRA >Earth Observing System, TERRA (AM-1)    [Information]

MODIS >Moderate-Resolution Imaging Spectroradiometer    [Information]

LANCE >Land, Atmosphere Near real-time Capability for EOS    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
TERRA >Earth Observing System (EOS), TERRA    [Information]

Overall NRT products match to operational with some expected minor differences from use of different ancillaries and ephemeris. There aren?t any data gaps or data artifacts.
This information posted on the NRT web page at:

Information on comparison of C6 Operational and NRT Atmospheric Products is posted at:
And, Information on comparison of C6 Operational and NRT Land Products is posted at:

Use Constraints
None. See disclaimer:

Data Set Progress

Creation and Review Dates
DIF Creation Date: 2015-09-10
Last DIF Revision Date: 2016-02-04

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