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Planetary Satellite Mean Orbital Parameters
Select from satellites of Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto

WARNING:  These mean orbital parameters are not intended for ephemeris computation. Accurate ephemerides should be obtained from our HORIZONS system. Mean orbital parameters are primarily useful in describing the general shape and orientation of a planetary satellite's orbit.

Satellites of Earth jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean ecliptic orbital elements

Epoch 2000 Jan. 1.50 TT
Solution: DE405/LE405
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Moon 384400. 0.0554 318.15 135.27 5.16 125.08 13.176358 27.322 5.997 18.600 1


Satellites of Mars jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean orbital elements referred to the local Laplace planes

Epoch 1950 Jan. 1.00 TT
Solution: MAR080
Sat. a e w M i node n P Pw Pnode R.A. Dec. Tilt Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr) (deg) (deg) (deg)
Phobos9376.0.0151 150.05791.0591.075207.784 1128.84475690.31891.13162.2617 317.67152.8930.009 5
Deimos23458.0.0002 260.729325.3291.78824.525 285.16187901.262427.370354.5367 316.65753.5290.889 5


Satellites of Jupiter jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean orbital elements referred to the local Laplace planes

Epoch 1997 Jan. 16.00 TT

Sat. a e w M i node n P Pw Pnode R.A. Dec. Tilt Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr) (deg) (deg) (deg)
Io421800.0.0041 84.129342.0210.03643.977203.4889583 1.7691.6257.420268.05764.495 0.000 11
Europa671100.0.0094 88.970171.0160.466219.106 101.37472423.5511.39430.184268.084 64.5060.016 11
Ganymede1070400.0.0013 192.417317.5400.17763.55250.3176072 7.15563.549132.654268.16864.543 0.068 11
Callisto1882700.0.0074 52.643181.4080.192298.84821.5710728 16.69205.75338.82268.63964.749 0.356 11
Amalthea181400.0.0032 155.873185.1940.380108.946 722.63171430.4980.1960.393268.057 64.4950.000 11
Thebe221900.0.0176 234.269135.9561.080235.694 533.70025680.6750.3980.797268.057 64.4950.000 11
Adrastea129000.0.0018 328.047135.6730.054228.378 1206.99880640.2980.0580.116268.057 64.4960.000 11
Metis128000.0.0012 297.177276.0470.019146.912 1221.25459820.2950.0570.115268.057 64.4960.000 11

Ecliptic mean orbital elements

Epoch 2000 Jan. 1.00 TT
Solution: Ecliptic mean elements - JUP300
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Himalia11460000.0.1586 331.23466.87428.61264.7981.4367562 250.56139.38292.57 18
Elara11740000.0.2108 142.001330.98527.945115.511 1.3865315259.64128.07265.30 18
Pasiphae23629000.0.4062 169.226279.769151.413314.223 0.4841223743.6181.2081.17 18
Sinope23942000.0.2552 354.541165.352158.189309.199 0.4743772758.8988.7287.40 18
Lysithea11717000.0.1161 49.670330.47527.6635.3261.3888891 259.20131.19292.04 18
Carme23401000.0.2546 26.416233.375164.994114.854 0.4903501734.1780.9888.32 18
Ananke21254000.0.2332 95.772253.384148.69315.9590.5716125 629.80144.92110.12 18
Leda11164000.0.1624 269.393230.35227.882219.181 1.4942407240.93144.79301.94 18
Callirrhoe24099000.0.2796 23.909107.962147.080283.104 0.4744232758.82120.0689.03 18
Themisto7504000.0.2435 217.147313.05142.977192.288 2.7688033130.02686.41528.39 18
Megaclite23814000.0.4156 288.882135.272152.781280.575 0.4781658752.8876.9079.23 18
Taygete23363000.0.2523 231.54094.756165.253305.114 0.4915209732.4281.0488.59 18
Chaldene23181000.0.2503 243.878267.454165.155134.240 0.4974208723.7381.6689.52 18
Harpalyke21106000.0.2296 134.505215.956148.75929.834 0.5775515623.32147.17111.64 18
Kalyke23565000.0.2466 218.934255.702165.12143.864 0.4851490742.0480.7687.67 18
Iocaste21272000.0.2152 64.727213.675149.411269.613 0.5699784631.60145.78111.18 18
Erinome23286000.0.2655 10.274267.136164.914317.497 0.4941719728.4980.5188.33 18
Isonoe23231000.0.2471 116.879124.941165.250130.961 0.4956884726.2681.8089.52 18
Praxidike21148000.0.2274 190.862117.480148.885280.956 0.5756381625.39144.77111.16 18
Autonoe24037000.0.3152 54.793142.035152.364272.817 0.4730563761.0192.3385.00 18
Thyone21197000.0.2307 97.023238.786148.595233.022 0.5739872627.19147.58110.93 18
Hermippe21297000.0.2095 300.836131.854150.740330.393 0.5679040633.91136.92110.64 18
Aitne23317000.0.2627 99.401105.000165.0488.6790.4930702 730.1280.3688.19 18
Eurydome23146000.0.2755 223.631287.689150.271302.470 0.5018735717.31111.5893.30 18
Euanthe21039000.0.2320 320.635333.101148.915254.297 0.5802269620.45144.52111.71 18
Euporie19336000.0.1438 89.90470.243145.74060.1430.6537221 550.69337063.88139.45 18
Orthosie21158000.0.2807 216.805204.517146.004221.949 0.5782402622.58142.35107.53 18
Sponde23790000.0.3112 61.885174.044150.997116.363 0.4810760748.3298.0887.01 18
Kale23306000.0.2597 44.233212.853164.94460.1700.4934152 729.6180.9188.57 18
Pasithee23091000.0.2682 231.920215.443165.117327.729 0.5003695719.4780.8289.25 18
Hegemone23575000.0.3445 197.144236.950154.164318.902 0.4866038739.8285.6684.87 18
Mneme21033000.0.2258 40.542256.860148.58513.4670.5806001 620.05148.06112.26 18
Aoede23974000.0.4325 59.739197.676158.272173.392 0.4728089761.4169.1776.83 18
Thelxinoe21160000.0.2201 313.183268.013151.390169.962 0.5732248628.03130.58110.42 18
Arche23352000.0.2495 171.63239.713165.015339.210 0.4918707731.9081.4088.73 18
Kallichore23276000.0.2509 9.83655.937165.10230.3390.4943462 728.2381.5689.16 18
Helike21065000.0.1498 299.48243.659154.84289.7490.5747808 626.33127.40114.52 18
Carpo17056000.0.4317 90.372337.06251.62450.5970.7889862 456.28711550.25112.82 18
Eukelade23323000.0.2619 309.685204.846165.265193.558 0.4929260730.3380.2488.16 18
Cyllene23800000.0.4155 187.429128.345150.336252.611 0.4787365751.9880.1979.71 18
Kore24482000.0.3313 138.07133.416145.173313.355 0.4634134776.84108.3984.47 18
Herse23408000.0.2541 330.295141.667164.964295.702 0.4901154734.5280.9888.27 18
S/2000 J 1112297000.0.2320 173.544309.73428.631294.497 1.2939791278.21117.58241.93 18
S/2003 J 228347000.0.4100 165.201237.932157.291344.782 0.3671484980.5360.2562.87 18
S/2003 J 320221000.0.1969 66.338311.780147.547231.489 0.6165779583.87181.96122.74 18
S/2003 J 423929000.0.3624 197.401260.480149.589179.131 0.4766663755.2590.1782.96 18
S/2003 J 523495000.0.2476 90.066336.636165.248176.683 0.4873118738.7580.9588.10 18
S/2003 J 923385000.0.2632 292.662348.415165.04744.321 0.4909185733.3280.2787.93 18
S/2003 J 1023042000.0.4299 170.833258.937165.073151.911 0.5026172716.2568.0680.34 18
S/2003 J 1217830000.0.4904 13.28838.543151.00365.5300.7351860 489.6797.93109.42 18
S/2003 J 1522627000.0.1899 18.40558.865146.492236.6740.5219082 689.78187.83105.37 18
S/2003 J 1621097000.0.2281 57.681307.563148.68316.8830.5779589 622.88146.70111.64 18
S/2003 J 1820508000.0.0895 130.894202.160146.077158.247 0.6018719598.13506.86131.88 18
S/2003 J 1923533000.0.2552 176.668223.035165.11627.442 0.4862156740.4180.1787.39 18
S/2003 J 2323567000.0.2746 255.114144.222146.42441.706 0.4914942732.46130.1092.90 18
S/2010 J 123449000.0.2491 189.230160.525165.100282.871 0.4887995736.5081.1888.33 18
S/2010 J 221004000.0.2267 18.252312.074148.6735.8020.5817371 618.84147.06112.35 18
S/2011 J 123446000.0.2534 31.514256.027165.318250.728 0.4888998736.3580.4587.91 18
S/2011 J 223124000.0.3493 270.154285.597153.59724.866 0.5011321718.3787.7887.00 18


Satellites of Saturn jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean orbital elements referred to the local Laplace planes

Epoch 2000 Jan. 1.50 TT

Sat. a e w M i node n P Pw Pnode R.A. Dec. Tilt Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr) (deg) (deg) (deg)
Mimas185539.0.0196 332.49914.8481.574173.027 381.99449480.9420.4930.98640.589 83.5360.002 32
Enceladus238042.0.0000 0.076199.6860.003342.507262.7318978 1.3701.1842.36040.58683.536 0.002 32
Tethys294672.0.0001 45.202243.3671.091259.842 190.69791091.8882.4904.98240.578 83.5370.001 32
Dione377415.0.0022 284.315322.2320.028290.415 131.53493072.7375.85211.70940.544 83.5400.005 32
Rhea527068.0.0002 241.619179.7810.333351.042 79.69004594.51817.93935.83240.328 83.5590.036 32
Titan1221865.0.0288 180.532163.3100.30628.06022.5769756 15.95352.12704.6036.21483.949 0.629 32
Hyperion1500933.0.0232 303.17886.3420.615263.84716.9199503 21.28127.99154.6636.37283.862 0.564 32
Iapetus3560854.0.0293 271.606201.7898.29881.1054.5379416 79.331676.693438.73284.71578.749 15.210 32
Phoebe12947918.0.1634 342.50053.038175.243241.086 0.6569114548.02460.92723.17275.954 67.45526.723 32
Janus151450.0.0098 16.01217.3420.165154.175518.3431513 0.6950.2400.48240.58583.538 0.000 33
Epimetheus151450.0.0161 88.97580.3770.353192.762518.0979676 0.6950.2400.48240.58583.538 0.000 33
Helene377444.0.0000 33.13443.1860.213163.112131.5349306 2.7372.56211.70640.54483.540 0.005 32
Telesto294720.0.0002 119.135260.1571.180229.182 190.69790891.8882.4894.98240.578 83.5370.001 32
Calypso294721.0.0005 17.470156.6601.500314.226 190.69790891.8882.4874.98340.578 83.5370.001 32
Atlas137774.0.0011 210.851283.2820.003236.422 598.31475050.6020.1710.34440.585 83.5380.000 33
Prometheus139429.0.0022 37.51496.8860.007319.176587.2860142 0.6130.1790.35940.58583.538 0.000 33
Pandora141810.0.0042 66.248125.1120.050147.272 572.78787540.6290.1900.38140.585 83.5380.000 33
Pan133585.0.0000 103.331351.1870.00052.076 626.03173410.5750.1540.30940.583 83.5380.000 33
Methone194402.0.0000 134.63671.1890.013313.562 356.59492521.0100.2501.15840.589 83.5360.002 32
Pallene212282.0.0040 16.074356.2290.001123.180 312.02707371.1540.8621.89940.579 83.5370.001 33
Polydeuces377222.0.0191 311.84789.3070.17567.936131.5349306 2.7375.81111.69540.54383.540 0.005 33
Daphnis136504.0.0000 266.931113.7900.003132.867 605.97915120.5940.1660.33440.583 83.5380.000 33
Anthe196888.0.0011 138.902190.4730.015287.852 347.35871671.0360.6171.23240.583 83.5370.000 33
Aegaeon167425.0.0002 152.905322.7710.001317.202 445.49341770.8080.3430.68840.584 83.5370.001 33

Mean ecliptic orbital elements

Epoch 2000 Jan. 1.00 TT

Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Ymir23128000.0.3338 21.352228.673173.497192.937 0.27373691315.13217.61277.53 34
Paaliaq15204000.0.3325 237.522321.65446.228330.022 0.5240567686.95576.14535.71 34
Tarvos18243000.0.5382 274.104265.78333.725102.504 0.3886226926.35194.18272.97 34
Ijiraq11408000.0.2717 92.89917.32847.485130.7790.7974868 451.4213807.37935.12 34
Suttungr19468000.0.1139 34.281321.133175.815227.259 0.35409521016.68292.79402.20 34
Kiviuq11384000.0.3325 90.205172.01846.764353.5840.8013951 449.2219973.94840.86 34
Mundilfari18653000.0.2097 309.69492.821167.43982.8560.3778328 952.80312.23417.31 34
Albiorix16393000.0.4797 55.93232.82834.060102.5120.4595027 783.46249.88358.14 34
Skathi15635000.0.2718 203.517114.689152.633286.599 0.4944382728.10474.36546.69 34
Erriapus17602000.0.4722 282.522294.82934.481150.985 0.4132539871.14219.90323.49 34
Siarnaq18182000.0.2802 65.929201.28845.80947.8260.4020067 895.51457.40454.20 34
Thrymr20418000.0.4659 125.40430.075177.659285.762 0.32966781092.01875.11139002.09 34
Narvi19349000.0.4296 169.959114.172145.731174.435 0.35858731003.94341.38347.42 34
Aegir20751000.0.2524 242.65126.017166.668179.064 0.32205261117.83273.91350.18 34
Bebhionn17116000.0.4682 358.141168.04535.101199.128 0.4312114834.86236.57342.06 34
Bergelmir19336000.0.1420 133.400306.494158.557202.164 0.35793961005.76359.70424.95 34
Bestla20209000.0.5145 81.185239.156145.136288.308 0.33087571088.02284.99299.08 34
Farbauti20390000.0.2414 342.995282.813156.520135.109 0.33129241086.65330.77374.34 34
Fenrir22454000.0.1347 120.982131.678164.963226.595 0.28563431260.35276.77332.99 34
Fornjot25146000.0.2077 324.787214.499170.372259.946 0.24094971494.09223.68267.44 34
Hati19868000.0.3710 21.286163.640165.808324.380 0.34609541040.18262.48339.97 34
Hyrrokkin18440000.0.3359 273.076291.841151.53645.402 0.3863203931.87375.76406.45 34
Kari22093000.0.4756 163.935286.021156.067281.211 0.29240121231.18228.81270.06 34
Loge23059000.0.1862 32.821337.237167.689343.811 0.27452281311.37251.72307.35 34
Skoll17668000.0.4636 193.11544.965161.010296.623 0.4099120878.24286.68369.06 34
Surtur22941000.0.4459 303.662136.191169.688236.537 0.27753841297.12202.95259.66 34
Jarnsaxa19354000.0.2178 237.422198.750163.64922.519 0.35751941006.94312.48396.92 34
Greip18457000.0.3146 152.160314.541174.800349.350 0.3841491937.14280.23385.90 34
Tarqeq17962000.0.1675 34.767161.02046.29183.2910.4067094 885.15896.54593.15 34
S/2004 S 721000000.0.5290 84.03679.762165.693341.2360.3157314 1140.21211.18273.22 34
S/2004 S 1219886000.0.3268 87.1281.599165.261307.9420.3441326 1046.11273.22351.49 34
S/2004 S 1318406000.0.2591 346.18641.077168.798205.701 0.3856043933.60302.01409.39 34
S/2004 S 1719448000.0.1795 180.792228.545168.23926.664 0.35481691014.61300.99397.14 34
S/2006 S 118780000.0.1412 154.95096.596156.180336.641 0.3741294962.23405.14453.57 34
S/2006 S 322428000.0.3792 188.728167.147158.631206.993 0.28681771255.15245.54287.39 34
S/2007 S 216718000.0.1791 57.72084.066174.057111.2770.4454603 808.15342.95496.45 34
S/2007 S 318938000.0.1853 111.854292.691177.595276.824 0.3681825977.781079.63161352.07 34


Satellites of Uranus jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean equatorial orbital elements

Epoch 1980 Jan. 1.0 TT
Solution: GUST86 - Laskar and Jacobson (1987) A&A 188, pp. 212-224 (converted to ICRF)
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Ariel190900.0.0012 115.34939.4810.04122.394142.8356579 2.52028.78857.248 10
Umbriel266000.0.0039 84.70912.4690.12833.48586.8688879 4.14463.146126.951 10
Titania436300.0.0011 284.40024.6140.07999.77141.3514246 8.706161.525195.369 10
Oberon583500.0.0014 104.400283.0880.068279.771 26.739488813.46161.52195.37 10
Miranda129900.0.0013 68.312311.3304.338326.438 254.69065761.4138.91317.727 10

Mean equatorial orbital elements

Epoch 1986 Jan. 19.50 TT
Solution: URA039 - Jacobson (1998) AJ 115, pp. 1195-1199
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Cordelia49800.0.0003 136.827254.8050.08538.374 1074.51831620.3350.3280.657 9
Ophelia53800.0.0099 17.761116.2590.104164.048 956.42833300.3760.4310.862 9
Bianca59200.0.0009 8.293138.4860.19393.220828.3879607 0.4350.6031.206 9
Cressida61800.0.0004 44.236233.7950.00699.403776.5824144 0.4640.7011.402 9
Desdemona62700.0.0001 183.285184.6270.113306.089 760.05553930.4740.7371.474 9
Juliet64400.0.0007 223.819244.6960.065200.155 730.12613490.4930.8091.619 9
Portia66100.0.0001 222.433218.3120.059260.067 701.48648140.5130.8881.777 9
Rosalind69900.0.0001 140.477136.1810.27912.847 644.63041830.5581.0812.163 9
Belinda75300.0.0001 42.406357.2240.031279.337 577.36028850.6241.3972.796 9
Puck86000.0.0001 177.094245.7960.319268.734 472.54458780.7622.2244.448 9

Mean equatorial orbital elements

Epoch 2004 Aug. 25.50 TT
Solution: Showalter (2006) Science, 311, 973
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Perdita76417.0.0116 253.925192.4050.470309.376 564.24695900.6381.4792.958 51
Mab97736.0.0025 249.565273.7690.134350.737 390.05010700.9233.5027.004 51
Cupid74392.0.0013 247.608163.8300.099182.793 587.44364900.6131.3462.693 51

Mean orbital elements referred to the Ecliptic

Epoch 2000 Jan. 1.50 TT
Solution: URA090
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Caliban7231100.0.1812 354.3397.271141.529171.1890.6209758 579.738936.316445.52 16
Sycorax12179400.0.5219 20.103266.583159.420263.034 0.27942171288.381393.431863.29 16
Prospero16276800.0.4445 174.152233.586151.830319.003 0.18196791978.371155.471370.39 16
Setebos17420400.0.5908 359.953179.449158.235250.235 0.16179212225.08823.911044.20 16
Stephano8007400.0.2248 14.956270.163143.819191.411 0.5313866677.475484.235182.20 16
Trinculo8505200.0.2194 158.688180.374166.971193.755 0.4803847749.402592.774273.04 16
Francisco4282900.0.1324 140.6443.202147.250100.7381.3478663 267.0912574.3614080.40 16
Margaret14146700.0.6772 90.017322.18757.3677.0670.2167366 1661.0012057739.22987.08 16
Ferdinand20430000.0.3993 156.29826.163169.793217.350 0.12903112790.03747.301001.70 16


Satellites of Neptune jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean orbital elements referred to the local Laplace planes

Epoch 2000 Jan. 1.50 TT

Sat. a e w M i node n P Pw Pnode R.A. Dec. Tilt Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr) (deg) (deg) (deg)
Triton354759.0.0000 66.142352.257156.865177.608 61.25726385.877386.371687.446 299.45643.4140.010 54
Nereid5513818.0.7507 281.117216.6927.090335.5700.9996276 360.138091.459455.73269.30269.117 30.011 54

Mean orbital elements referred to the local Laplace planes

Epoch 2000 Jan. 1.50 TDT
Solution: Voyager, HST, and Astrometric data solution
Sat. a e w M i node n P Pw Pnode R.A. Dec. Tilt Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr) (deg) (deg) (deg)
Naiad48227.0.0003 2.04530.0354.69142.2791222.8435847 0.2940.2890.575299.43142.940 0.448 55
Thalassa50074.0.0002 237.065262.9230.135145.980 1155.75597490.3110.3270.654299.431 42.9390.449 55
Despina52526.0.0002 176.857230.8120.06877.060 1075.73306740.3350.3870.774299.431 42.9370.451 55
Galatea61953.0.0001 343.01165.9990.03437.247839.6613030 0.4290.6901.380299.43042.925 0.462 55
Larissa73548.0.0014 249.891166.2460.205308.127 649.05407700.5551.2572.516299.429 42.8970.490 55
Proteus117646.0.0005 67.968250.9380.075315.131 320.76562451.1226.38012.727299.406 42.4320.974 54
S/2004 N 1105284.0.0000 0.000302.6520.0000.000378.9061402 0.9500.0000.000299.37342.944 0.448 57

Mean ecliptic orbital elements

Epoch 2003 Jun. 10.00 TT

Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Halimede16681000.0.2909 162.119105.258112.898217.288 0.19155781879.335673.1918501.48 56
Psamathe46705000.0.4617 144.158190.027137.679298.074 0.03943599128.741477.621304.72 56
Sao22619000.0.2827 65.047168.13949.90760.3540.1233230 2919.16436880.785382.39 56
Laomedeia23613000.0.4339 140.107285.86334.04959.1240.1133637 3175.622245.083325.44 56
Neso50258000.0.4243 86.441260.648131.26549.1510.0364349 9880.6323936.861094.07 56


Satellites of Pluto jump to: Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto or [top of page]  

Mean equatorial (IAU equator) orbital elements, planetocentric for Charon, barycentric for the others

Solution: PLU042
Sat. a e w M i node n P Pw Pnode Ref.
(km) (deg) (deg) (deg) (deg) (deg/day) (days) (yr) (yr)
Charon19591.0.0002 146.106131.0700.08026.92856.3625210 6.38710178.0409020.398 58
Nix48671.0.0000 324.463284.4050.000203.400 14.484130424.850.0000.000 58
Hydra64698.0.0056 153.307326.6780.304113.1739.4235386 38.207.1914.35 58
Kerberos57729.0.0000 160.629161.0610.426305.871 11.191302632.170.0009.27 58
Styx42393.0.0006 330.244194.5460.08026.95617.8551357 20.163710.585162.64 58


Common Table Column Headings:

 aSemi-major Axis (mean value)
eEccentricity (mean value)
wArgument of periapsis (mean value)
MMean anomaly (mean value)
iInclination with respect to the reference plane: ecliptic, ICRF, or local Laplace (mean value)
nodeLongitude of the ascending node (mean value) measured from the node of the reference plane on the ICRF equator
nLongitude rate (mean value)
PSidereal period (mean value)
PwArgument of periapsis precession period (mean value)
PnodeLongitude of the ascending node precession period (mean value)

Headings only for elements with respect to the local Laplace plane:

 R.A.
Dec.
Right ascension and ...
Declination of the Laplace plane pole with respect to the ICRF.
TiltThe angle between the planet equator and the Laplace plane.


REFERENCES

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2. Jacobson, R.A. (2003) ``Reconstruction of the Voyager Saturn Encounter Orbits in the ICRF System'', Paper No. AAS 03-198, 13th AAS/AIAA Space Flight Mechanics Meeting, Ponce, Puerto Rico.

3. Jacobson, R.A. (2000) ``The orbits of the outer Jovian satellites'', Astronomical Journal 120, 2679-2686. Note: the mean motions and periods appearing in the reference are incorrect for the retrograde satellites. The correct values appear here.

4. Jacobson, R.A., Riedel, J.E. and Taylor, A.H. (1991) ``The orbits of Triton and Nereid from spacecraft and Earthbased observations'', Astronomy & Astrophysics 247, 565.

5. Jacobson, R.A. (2008) ``Ephemerides of the Martian Satellites - MAR080'', JPL IOM 343R-08-006

6. Jacobson, R.A. (1996) ``Orbits of the Saturnian Satellites from Earthbased and Voyager Observations'', Bull. American Astronomical Society 28(3), 1185.

7. Jacobson, R.A. (1997) JUP120 - JPL satellite ephemeris.

8. Jacobson, R.A. (1998) ``The orbit of Phoebe from Earthbased and Voyager observations'', Astronomy & Astrophysics Supp.  128, 7.

9. Jacobson, R.A. (1998) ``The orbits of the inner Uranian satellites from Hubble Space Telescope and Voyager 2 observations'', Astronomical Journal 115, 1195.

10. Laskar, J. and Jacobson, R.A. (1987) ``GUST86. An analytical ephemeris of the Uranian satellites'', Astronomy & Astrophysics 188, 212.

11. Jacobson, R.A. (2003) JUP230 - JPL satellite ephemeris.

12. Jacobson, R.A. (2007) SAT270, SAT271 - JPL satellite ephemerides.

13. Tholen, D .J. and Buie, M. W. (1990) ``Further Analysis of Pluto-Charon Mutual Event Observations'',Bull. American Astronomical Society 22(3), 1129.

14. Owen, W.M., Vaughan, R.M, and Synnott, S.P. (1991) ``Orbits of the Six New Satellites of Neptune'', Astronomical Journal  101, 1511.

15. Showalter, M.R. (1991) ``Visual detection of 1981S13, Saturn's eighteenth satellite, and its role in the Encke gap'', Nature 351, 709.

16. Brozovic, M. and Jacobson, R. A. (2009) ``The Orbits of the Outer Uranian Satellites'', Astronomical Journal  137, 3834.

17. Jacobson, R.A. (2000) URA047 - JPL satellite ephemeris.

18. Jacobson, R.A. (2013) JUP300 - JPL satellite ephemeris for the irregular Jovian satellites.

19. Jacobson, R.A. (2004) ``The orbits of the major Saturnian satellites and the gravity field of Saturn from spacecraft and Earthbased observations'',Astronomical Journal 128, 492.

20. Jacobson, R.A. (2001c) ``The Orbits of Jupiter and its Galilean Satellites and the Gravity Field of the Jovian System'', Jupiter: The Planet, Satellites, and Magnetosphere, Boulder, Colorado.

21. Jacobson, R.A. (2001d) ``The Gravity Field of the Jovian System and the Orbits of the Regular Jovian Satellites'', 33rd Annual Meeting of the Division for Planetary Sciences, New Orleans, Louisiana.

22. Jacobson, R.A. (2009) JUP269 - JPL satellite ephemeris.

23. Lieske, J.H. (1998) ``Galilean satellite ephemerides E5'', Astronomy & Astrophysics Supp. 129, 205.

24. Jacobson, R.A. (2003) URA066 - JPL satellite ephemeris.

25. Jacobson, R.A. (2002) JUP242 - JPL satellite ephemeris.

26. Jacobson, R.A. (2003) JUP219 - JPL satellite ephemeris.

27. Jacobson, R.A. (2003) NEP029 - JPL satellite ephemeris.

28. Jacobson, R.A. (2003) JUP222 - JPL satellite ephemeris.

29. Jacobson, R.A. (2003) JUP224 - JPL satellite ephemeris.

30. Jacobson, R.A. (2003) JUP226 - JPL satellite ephemeris.

31. Jacobson, R.A. (2003) JUP227 - JPL satellite ephemeris.

32. Jacobson, R.A. (2010) SAT339 - JPL satellite ephemeris.

33. Jacobson, R.A. (2010) SAT342 - JPL satellite ephemeris.

34. Jacobson, R.A. (2013) SAT361 - JPL satellite ephemeris.

35. Jacobson, R.A. (2004) JUP252 - JPL satellite ephemeris

36. Jacobson, R.A. (2003) NEP041 - JPL satellite ephemeris

37. Jacobson, R.A. (2003) URA067 - JPL satellite ephemeris

38. Jacobson, R.A. (2007) NEP057 - JPL satellite ephemeris

39. Jacobson, R.A. (2003) URA068 - JPL satellite ephemeris

40. Jacobson, R.A. (2003) URA072 - JPL satellite ephemeris

41. Jacobson, R.A. (2009) SAT317 - JPL satellite ephemeris.

42. Jacobson, R.A. (2006) JUP261 - JPL satellite ephemeris.

43. Jacobson, R.A. (2009) JUP268 - JPL satellite ephemeris.

44. Jacobson, R.A. (2009) JUP270 - JPL satellite ephemeris.

45. Jacobson, R. A. and Owen, Jr., W. M. (2004) ``The orbits of the inner Neptunian satellites from Voyager, Earthbased, and Hubble Space Telescope observations'', Astronomical Journal 128, 1412.

46. Jacobson, R. A. and French, R. G. (2004) ``Orbits and Masses of Saturn's Coorbital and F-ring Shepherding Satellites'', Icarus 172, 382.

47. Spitale, J. N., Jacobson, R. A., Porco, C. C., and Owen, Jr., W. M. (2006) ``The Orbits of Saturn's Small Satellites Derived from Combined Historic and Cassini Imaging Observations'', Astronomical Journal 132, 692.

48. Jacobson, R.A. (2007) PLU017 - JPL satellite ephemeris.

49. Jacobson, R.A. (2008) SAT295 - JPL satellite ephemeris.

50. Jacobson, R.A. (2008) SAT296 - JPL satellite ephemeris.

51. Showalter, M. R. and Lissauer, J. J. (2006) ``The Second Ring-Moon System of Uranus: Discovery and Dynamics'', Science 311, 973.

52. Jacobson, R.A. (2008) SAT297 - JPL satellite ephemeris.

53. Jacobson, R.A. (2008) SAT298 - JPL satellite ephemeris.

54. Jacobson, R. A. (2009) ``The Orbits of the Neptunian Satellites and the Orientation of the Pole of Neptune'', Astronomical Journal 137, 4322.

55. Jacobson, R.A. (2008) NEP077 - JPL satellite ephemeris.

56.Brozovic, M., Jacobson, R. A., and Sheppard, S. S. (2011) ``The Orbits of the Outer Neptunian Satellites'', Astronomical Journal 141, 135.

57. Jacobson, R.A. (2013) NEP087 - JPL satellite ephemeris.

58. Brozovic, M. and Jacobson, R. A. (2013) ``The Orbits, Masses of Pluto's Satellites'', Presented at The Pluto System on the Eve of Exploration by New Horizons: Perspectives, Predictions held at APL, Laurel, MD - PLU042 - JPL satellite ephemeris.

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