Natural Satellites Ephemeris Service

Ephemerides, orbital elements and residual blocks for the outer irregular satellites of the giant planets are available here.

Choose which objects you wish to observe, select what information you want returned, indicate your ephemeris options (if necessary) and then select the "Get Information" button.



Selection of Objects

All Jovian outer irregular satellites

All unnumbered Jovian outer irregular satellites

All numbered Jovian outer irregular satellites

Just the following Jovian outer irregular satellites

S/2003 J 2 S/2003 J 1 S/2003 J 1
S/2003 J 1 S/2003 J 1 S/2003 J 9
S/2003 J 4 S/2003 J 3 S/2003 J 2
Jupiter LIX Jupiter LVIII Jupiter LVII
Jupiter LVI Jupiter LV Jupiter LIV
Jupiter LIII (Dia) Jupiter LII Jupiter LI
Jupiter L (Herse) Jupiter XLIX (Kore) Jupiter XLVIII (Cyllene)
Jupiter XLVII (Eukelade) Jupiter XLVI (Carpo) Jupiter XLV (Helike)
Jupiter XLIV (Kallichore) Jupiter XLIII (Arche) Jupiter XLII (Thelxinoe)
Jupiter XLI (Aoede) Jupiter XL (Mneme) Jupiter XXXIX (Hegemone)
Jupiter XXXVIII (Pasithee) Jupiter XXXVII (Kale) Jupiter XXXVI (Sponde)
Jupiter XXXV (Orthosie) Jupiter XXXIV (Euporie) Jupiter XXXIII (Euanthe)
Jupiter XXXII (Eurydome) Jupiter XXXI (Aitne) Jupiter XXX (Hermippe)
Jupiter XXIX (Thyone) Jupiter XXVIII (Autonoe) Jupiter XXVII (Praxidike)
Jupiter XXVI (Isonoe) Jupiter XXV (Erinome) Jupiter XXIV (Iocaste)
Jupiter XXIII (Kalyke) Jupiter XXII (Harpalyke) Jupiter XXI (Chaldene)
Jupiter XX (Taygete) Jupiter XIX (Megaclite) Jupiter XVIII (Themisto)
Jupiter XVII (Callirrhoe) Jupiter XIII (Leda) Jupiter XII (Ananke)
Jupiter XI (Carme) Jupiter X (Lysithea) Jupiter IX (Sinope)
Jupiter VIII (Pasiphae) Jupiter VII (Elara) Jupiter VI (Himalia)

All Saturnian outer irregular satellites

All unnumbered Saturnian outer irregular satellites

All numbered Saturnian outer irregular satellites

Just the following Saturnian outer irregular satellites

S/2007 S 3 S/2007 S 2 S/2006 S 3
S/2006 S 1 S/2004 S 1 S/2004 S 1
S/2004 S 1 S/2004 S 7 Saturn LII (Tarqeq)
Saturn LI (Greip) Saturn L (Jarnsaxa) Saturn XLVIII (Surtur)
Saturn XLVII (Skoll) Saturn XLVI (Loge) Saturn XLV (Kari)
Saturn XLIV (Hyrrokkin) Saturn XLIII (Hati) Saturn XLII (Fornjot)
Saturn XLI (Fenrir) Saturn XL (Farbauti) Saturn XXXIX (Bestla)
Saturn XXXVIII (Bergelmir) Saturn XXXVII (Bebhionn) Saturn XXXVI (Aegir)
Saturn XXXI (Narvi) Saturn XXX (Thrymr) Saturn XXIX (Siarnaq)
Saturn XXVIII (Erriapus) Saturn XXVII (Skathi) Saturn XXVI (Albiorix)
Saturn XXV (Mundilfari) Saturn XXIV (Kiviuq) Saturn XXIII (Suttungr)
Saturn XXII (Ijiraq) Saturn XXI (Tarvos) Saturn XX (Paaliaq)
Saturn XIX (Ymir) Saturn IX (Phoebe)

All Uranian outer irregular satellites

All unnumbered Uranian outer irregular satellites

All numbered Uranian outer irregular satellites

Just the following Uranian outer irregular satellites

Uranus XXIV (Ferdinand) Uranus XXIII (Margaret) Uranus XXII (Francisco)
Uranus XXI (Trinculo) Uranus XX (Stephano) Uranus XIX (Setebos)
Uranus XVIII (Prospero) Uranus XVII (Sycorax) Uranus XVI (Caliban)

All Neptunian outer irregular satellites

All unnumbered Neptunian outer irregular satellites

All numbered Neptunian outer irregular satellites

Just the following Neptunian outer irregular satellites

Neptune XIII (Neso) Neptune XII (Laomedeia) Neptune XI (Sao)
Neptune X (Psamathe) Neptune IX (Halimede) Neptune II (Nereid)


Output Format(s) Required

I require Ephemerides

I require Orbital Elements
either Multi-line format or One-line format
Please Show residual blocks



Ephemeris Options

The desired start date for the ephemerides should be entered in YYYY MM DD format (e.g., 2004 July 2 = 2004 07 02). The default is the most recent 0h UT hour.

Start date: Number of dates to output

Ephemeris interval: Ephemeris units: days hours minutes seconds

Observatory code:

Display positions in: truncated sexagesimal or full sexagesimal or decimal units

Total motion and direction
Separate R.A. and Decl. coordinate motions
Separate R.A. and Decl. sky motions
Display motions as: "/sec "/min "/hr °/day