2.4.1 spase://CNES/NumericalData/CDPP-AMDA/Ephemerides/mars-orb-all Mars 2018-09-18T10:20:34Z Heliocentric Inertial (HCI) Frame : * The solar rotation axis is the primary vector: the Z axis points in the solar north direction; * The solar ascending node on the ecliptic of J2000 forms the X axis. * The Y axis is Z cross X, completing the right-handed reference frame. Heliocentric Earth Ecliptic (HEE) Frame : * The position of the earth relative to the sun is the primary vector: the X axis points from the sun to the earth. * The northern surface normal to the mean ecliptic of date is the secondary vector: the Z axis is the component of this vector orthogonal to the X axis. * The Y axis is Z cross X, completing the right-handed reference frame. Solar longitude (Ls) : * The solar longitude Ls is the Planet-Sun angle, measured from the Northern Hemisphere spring equinox where Ls=0. Ls=90 thus corresponds to northern summer solstice, just as Ls=180 marks the northern autumn equinox and Ls=270 the northern winter solstice. spase://CNES/Person/CDPP-AMDA/NAIF PrincipalInvestigator spase://SMWG/Repository/CDPP/AMDA Online Open CDPP/AMDA HAPI Server https://amda.irap.omp.eu/service/hapi mars-orb-all Web Service to this product using the HAPI interface. CSV Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers. spase://SMWG/Repository/CDPP/AMDA Online Open CDPP/AMDA Web application https://amda.cdpp.eu Access to Data via CDPP/AMDA Web application. CSV VOTable CDF PNG Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers. SPICE spase://CNES/Instrument/CDPP-AMDA/Ephemerides Ephemeris 1970-01-01T00:00:05Z 2035-01-19T22:00:04Z PT60M Mars xyz_hee xyz_mars_hee AU Cartesian HEE TimeSeries 3 x 1 xyz_mars_hee(0) y 2 xyz_mars_hee(1) z 3 xyz_mars_hee(2) Positional xyz_hci xyz_mars_hci AU Cartesian HCI TimeSeries 3 x 1 xyz_mars_hci(0) y 2 xyz_mars_hci(1) z 3 xyz_mars_hci(2) Positional distance mars-sun r_mars AU Positional longitude HCI mars_hci_lon deg Positional latitude HCI mars_hci_lat deg Positional longitude IAU_sun mars_sol_lon deg Positional latitude IAU_sun mars_sol_lat deg Positional solar longitude (Ls) mars_sol_ls deg Positional longitude HEE mars_lon_hee deg Positional latitude HEE mars_lat_hee deg Positional