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Planetary Satellite Physical Parameters

The following tables provide known physical parameters for planetary satellites. References, where known, are shown in square brackets (e.g. [1]) following the particular value. The JPL lunar constants and models technical document is also available.

Earth's Moon
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Moon 4902.801±0.001[1] 1737.5±0.1[2] 3.344±0.005 -12.74[3] 0.12[3]

Martian System
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Phobos 0.0007112±0.0000010[4] 11.1±0.15[5] 1.872±0.076 11.4±0.2[6] 0.071±0.012[6]
Deimos 0.0000985±0.0000024[4] 6.2±0.18[5] 1.471±0.166 12.45±0.05[6] 0.068±0.007[7]

Jovian System
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Io 5959.916±0.012[8] 1821.6±0.5[9] 3.528±0.006 5.02±0.03[14] 0.63±0.02[16]
Europa 3202.739±0.009[8] 1560.8±0.5[10] 3.013±0.005 5.29±0.02[14] 0.67±0.03[17]
Ganymede 9887.834±0.017[8] 2631.2±1.7[11] 1.942±0.005 4.61±0.03[14] 0.43±0.02[18]
Callisto 7179.289±0.013[8] 2410.3±1.5[12] 1.834±0.004 5.65±0.10[14] 0.17±0.02[18]
Amalthea 0.138±0.030[8] 83.45±2.4[13] 0.849±0.199 14.1±0.2[15] 0.090±0.005[19]
Himalia 0.45  85[20] 2.6 14.2R[26] 0.04 
Elara 0.058  43[20] 2.6 16.0R[26] 0.04 
Pasiphae 0.020  30[20] 2.6 16.8R[26] 0.04 
Sinope 0.0050  19[20] 2.6 18.2R[26] 0.04 
Lysithea 0.0042  18[20] 2.6 18.1R[26] 0.04 
Carme 0.0088  23[20] 2.6 18.1R[26] 0.04 
Ananke 0.0020  14[20] 2.6 19.1R[26] 0.04 
Leda 0.00073  10[20] 2.6 19.2R[26] 0.04 
Thebe 0.10  49.3±2.0[21] 3.0 16.0[22] 0.047±0.003[19]
Adrastea 0.0005  8.2±2.0[21] 3.0 18.7[22] 0.1±0.045[21]
Metis 0.008  21.5±2.0[21] 3.0 17.5[22] 0.061±0.003[19]
Callirrhoe 0.000058  4.3[25] 2.6 20.8R[26] 0.04[25]
Themisto 0.000046  4.0[25] 2.6 21.0R[26] 0.04[25]
Megaclite 0.000014  2.7[25] 2.6 21.7R[26] 0.04[25]
Taygete 0.000011  2.5[25] 2.6 21.9R[26] 0.04[25]
Chaldene 0.000005  1.9[25] 2.6 22.5R[25] 0.04[25]
Harpalyke 0.000008  2.2[25] 2.6 22.2R[26] 0.04[25]
Kalyke 0.000013  2.6[25] 2.6 21.8R[26] 0.04[25]
Iocaste 0.000013  2.6[25] 2.6 21.8R[26] 0.04[25]
Erinome 0.000003  1.6[25] 2.6 22.8R[25] 0.04[25]
Isonoe 0.000005  1.9[25] 2.6 22.5R[25] 0.04[25]
Praxidike 0.000029  3.4[25] 2.6 21.2R[26] 0.04[25]
Autonoe 0.000006  2.0[25] 2.6 22.0R[25] 0.04[25]
Thyone 0.000006  2.0[25] 2.6 22.3R[25] 0.04[25]
Hermippe 0.000006  2.0[25] 2.6 22.1R[25] 0.04[25]
Aitne 0.000003  1.5[25] 2.6 22.7R[25] 0.04[25]
Eurydome 0.000003  1.5[25] 2.6 22.7R[25] 0.04[25]
Euanthe 0.000003  1.5[25] 2.6 22.8R[25] 0.04[25]
Euporie 0.000001  1.0[25] 2.6 23.1R[25] 0.04[25]
Orthosie 0.000001  1.0[25] 2.6 23.1R[25] 0.04[25]
Sponde 0.000001  1.0[25] 2.6 23.0R[25] 0.04[25]
Kale 0.000001  1.0[25] 2.6 23.0R[25] 0.04[25]
Pasithee 0.000001  1.0[25] 2.6 23.2R[25] 0.04[25]
Hegemone 0.000003  1.5[25] 2.6 22.8R[25] 0.04[25]
Mneme 0.000001  1.0[25] 2.6 23.3R[25] 0.04[25]
Aoede 0.000006  2.0[25] 2.6 22.5R[25] 0.04[25]
Thelxinoe 0.000001  1.0[25] 2.6 23.5R[25] 0.04[25]
Arche 0.000003  1.5[25] 2.6 22.8R[25] 0.04[25]
Kallichore 0.000001  1.0[25] 2.6 23.7R[25] 0.04[25]
Helike 0.000006  2.0[25] 2.6 22.6R[25] 0.04[25]
Carpo 0.000003  1.5[25] 2.6 23.0R[25] 0.04[25]
Eukelade 0.000006  2.0[25] 2.6 22.6R[25] 0.04[25]
Cyllene 0.000001  1.0[25] 2.6 23.2R[25] 0.04[25]
Kore 0.000001  1.0[25] 2.6 23.6R[25] 0.04[25]
Herse 0.000001  1.0[25] 2.6 23.4R[25] 0.04[25]
S/2000 J11 0.000001  1.0[25] 2.6 22.4R[25] 0.04[25]
S/2003 J2 0.000001  1.0[25] 2.6 23.2R[25] 0.04[25]
S/2003 J3 0.000001  1.0[25] 2.6 23.4R[25] 0.04[25]
S/2003 J4 0.000001  1.0[25] 2.6 23.0R[25] 0.04[25]
S/2003 J5 0.000006  2.0[25] 2.6 22.4R[25] 0.04[25]
S/2003 J9 0.0000001  0.5[25] 2.6 23.7R[25] 0.04[25]
S/2003 J10 0.000001  1.0[25] 2.6 23.6R[25] 0.04[25]
S/2003 J12 0.0000001  0.5[25] 2.6 23.9R[25] 0.04[25]
S/2003 J15 0.000001  1.0[25] 2.6 23.5R[25] 0.04[25]
S/2003 J16 0.000001  1.0[25] 2.6 23.3R[25] 0.04[25]
S/2003 J18 0.000001  1.0[25] 2.6 23.4R[25] 0.04[25]
S/2003 J19 0.000001  1.0[25] 2.6 23.7R[25] 0.04[25]
S/2003 J23 0.000001  1.0[25] 2.6 23.6R[25] 0.04[25]
S/2010 J1 0.000001  1.0[60] 2.6 23.2r[60] 0.04[60]
S/2010 J2 0.000001  1.0[60] 2.6 24.0r[60] 0.04[60]
S/2011 J1 0.000001  1.0[61] 2.6 23.7R[61] 0.04[61]
S/2011 J2 0.000001  1.0[61] 2.6 23.5R[61] 0.04[61]

Saturnian System
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Mimas 2.5026±0.0006[27] 198.20±0.25[28] 1.150±0.004 12.8[29] 0.962±0.004[59]
Enceladus 7.2027±0.0125[27] 252.10±0.10[28] 1.608±0.003 11.8[29] 1.375±0.008[59]
Tethys 41.2067±0.0038[27] 533.00±0.70[28] 0.973±0.004 10.2[29] 1.229±0.005[59]
Dione 73.1146±0.0015[27] 561.70±0.45[28] 1.476±0.004 10.4[29] 0.998±0.004[59]
Rhea 153.9426±0.0037[27] 764.30±1.10[28] 1.233±0.005 9.6[29] 0.949±0.003[59]
Titan 8978.1382±0.0020[27] 2574.73±0.09[55] 1.882±0.001 8.4[29] 0.2[29]
Hyperion 0.3727±0.0012[27] 135.00±4.00[54] 0.544±0.050 14.4[29] 0.3[29]
Iapetus 120.5038±0.0080[27] 735.60±1.50[28] 1.083±0.007 11[29] 0.6[29]
Phoebe 0.5532±0.0006[27] 106.50±0.70[54] 1.638±0.033 16.4[34] 0.081±0.002[30]
Janus 0.1263±0.0087[54] 89.5±1.5[54] 0.630±0.030 14.4[29] 0.71±0.02[59]
Epimetheus 0.0351±0.0047[54] 58.1±1.8[54] 0.640±0.062 15.6[29] 0.73±0.03[59]
Helene 0.00076  17.6±0.4[54] 0.5 18.4[29] 1.67±0.20[59]
Telesto 0.00027  12.4±0.4[54] 0.5 18.5[29] 1.0[29]
Calypso 0.00017  10.7±0.7[54] 0.5 18.7[29] 1.34±0.10[59]
Atlas 0.00044±0.00015[54] 15.1±1.2[54] 0.460±0.110 19.0[29] 0.4[29]
Prometheus 0.01074±0.00285[54] 43.1±2.7[54] 0.480±0.090 15.8[29] 0.6[29]
Pandora 0.00924±0.00152[54] 40.7±1.5[54] 0.490±0.060 16.4[29] 0.5[29]
Pan 0.00033±0.00015[54] 14.1±1.3[54] 0.420±0.150 19.4[32] 0.5[32]
Methone 0.0000006  1.6±0.6[54] 0.5 ?  ? 
Pallene 0.0000022  2.5±0.6[54] 0.5 ?  ? 
Polydeuces 0.0000003  1.3±0.4[54] 0.5 ?  ? 
Daphnis 0.0000052±0.0000052[54] 3.8±0.8[54] 0.340±0.260 ?  ? 
Anthe 0.0000001  0.9[57] 0.5 ?  ? 
Aegaeon 0.000000004  0.3[56] 0.5 ?  ? 
Ymir 0.00033  9[33] 2.3 21.9R[34] 0.06[33]
Paaliaq 0.00055  11.0[33] 2.3 21.1R[34] 0.06[33]
Tarvos 0.00018  7.5[33] 2.3 22.7R[34] 0.06[33]
Ijiraq 0.000080  6[33] 2.3 22.6R[35] 0.06[33]
Suttungr 0.000014  3.5[33] 2.3 23.9R[35] 0.06[33]
Kiviuq 0.00022  8[33] 2.3 22.1R[34] 0.06[33]
Mundilfari 0.000014  3.5[33] 2.3 23.8R[35] 0.06[33]
Albiorix 0.0014  16[33] 2.3 20.5R[34] 0.06[33]
Skathi 0.000021  4[33] 2.3 23.6R[35] 0.06[33]
Erriapus 0.000051  5[33] 2.3 23.4R[34] 0.06[33]
Siarnaq 0.0026  20[33] 2.3 19.9R[34] 0.06[33]
Thrymr 0.000014  3.5[33] 2.3 23.9R[35] 0.06[33]
Narvi 0.000023  3.5[35] 2.3 23.8R[35] 0.04[35]
Aegir 0.000000  3.0[35] 2.3 24.4R[35] 0.04[35]
Bebhionn 0.000000  3.0[35] 2.3 24.1R[35] 0.04[35]
Bergelmir 0.000000  3.0[35] 2.3 24.2R[35] 0.04[35]
Bestla 0.000000  3.5[35] 2.3 23.8R[35] 0.04[35]
Farbauti 0.000000  2.5[35] 2.3 24.7R[35] 0.04[35]
Fenrir 0.000000  2.0[35] 2.3 25.0R[35] 0.04[35]
Fornjot 0.000000  3.0[35] 2.3 24.6R[35] 0.04[35]
Hati 0.000000  3.0[35] 2.3 24.4R[35] 0.04[35]
Hyrrokkin 0.000000  3.0[35] 2.3 23.5R[35] 0.04[35]
Kari 0.000000  3.0[35] 2.3 23.9R[35] 0.04[35]
Loge 0.000000  3.0[35] 2.3 24.6R[35] 0.04[35]
Skoll 0.000000  3.0[35] 2.3 24.5R[35] 0.04[35]
Surtur 0.000000  3.0[35] 2.3 24.8R[35] 0.04[35]
Jarnsaxa 0.000000  3.0[35] 2.3 24.7R[35] 0.04[35]
Greip 0.000000  3.0[35] 2.3 24.4R[35] 0.04[35]
Tarqeq 0.000000  3.0[35] 2.3 23.9R[35] 0.04[35]
S/2004 S7 0.000000  3.0[35] 2.3 24.5R[35] 0.04[35]
S/2004 S12 0.000000  2.5[35] 2.3 24.8R[35] 0.04[35]
S/2004 S13 0.000000  3.0[35] 2.3 24.5R[35] 0.04[35]
S/2004 S17 0.000000  2.0[35] 2.3 25.2R[35] 0.04[35]
S/2006 S1 0.000000  3.0[35] 2.3 24.6R[35] 0.04[35]
S/2006 S3 0.000000  2.5[35] 2.3 24.6R[35] 0.04[35]
S/2007 S2 0.000000  3.0[35] 2.3 24.4R[35] 0.04[35]
S/2007 S3 0.000000  2.0[35] 2.3 24.9R[35] 0.04[35]

Uranian Satellites
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Ariel 86.4±5.0[36] 578.9±0.6[37] 1.592±0.092 13.70±0.04[38] 0.39±0.04[39]
Umbriel 81.5±5.0[36] 584.7±2.8[37] 1.459±0.092 14.47±0.04[38] 0.21±0.02[39]
Titania 228.2±5.0[36] 788.9±1.8[37] 1.662±0.038 13.49±0.04[38] 0.27±0.03[39]
Oberon 192.4±7.0[36] 761.4±2.6[37] 1.559±0.059 13.70±0.04[38] 0.23±0.03[39]
Miranda 4.4±0.4[36] 235.8±0.7[37] 1.214±0.109 15.79±0.04[38] 0.32±0.03[39]
Cordelia 0.0030  20.1±3.[40] 1.3 23.62±0.35[38] 0.07[38]
Ophelia 0.0036  21.4±4.[40] 1.3 23.26±0.25[38] 0.07[38]
Bianca 0.0062  27±2[67] 1.3 22.52±0.24[38] 0.065±0.010[67]
Cressida 0.0229  41±2[67] 1.3 21.58±0.11[38] 0.069±0.007[67]
Desdemona 0.0119  35±4[67] 1.3 21.99±0.16[38] 0.084±0.019[67]
Juliet 0.0372  53±4[67] 1.3 21.12±0.05[38] 0.075±0.011[67]
Portia 0.1122  70±4[67] 1.3 20.42±0.05[38] 0.069±0.008[67]
Rosalind 0.0170  36±6[67] 1.3 21.79±0.13[38] 0.072±0.024[67]
Belinda 0.0238  45±8[67] 1.3 21.47±0.09[38] 0.067±0.024[67]
Puck 0.1931  81±2[67] 1.3 19.75±0.05[38] 0.104±0.006[67]
Caliban 0.020  36[42] 1.5 22.4R[42] 0.04[42]
Sycorax 0.18  75[42] 1.5 20.8R[42] 0.04[42]
Prospero 0.0066  25[42] 1.5 23.2R[42] 0.04[42]
Setebos 0.0058  24[42] 1.5 23.3R[42] 0.04[42]
Stephano 0.0017  16[42] 1.5 24.1R[42] 0.04[42]
Trinculo 0.00031  9[42] 1.5 25.4R[42] 0.04[42]
Francisco 0.00056  11[42] 1.5 25.0R[42] 0.04[42]
Margaret 0.00042  10[42] 1.5 25.2R[42] 0.04[42]
Ferdinand 0.00042  10[42] 1.5 25.1R[42] 0.04[42]
Perdita 0.0012  13±1[67] 1.3 23.6V[40] 0.070±0.006[67]
Mab 0.0006  12±1[67] 1.3 24.6V[67] 0.103±0.006[67]
Cupid 0.0002  9±1[67] 1.3 25.8V[67] 0.070±0.006[67]

Neptunian Satellites
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Triton 1427.6±1.9[43] 1353.4±0.9[44] 2.059±0.005 13.54[46] 0.719[46]
Nereid 2.06  170.±25.[47] 1.5 19.2R[48] 0.155[47]
Naiad 0.013  33.±3.[48] 1.3 23.91[48] 0.072[48]
Thalassa 0.025  41.±3.[48] 1.3 23.32[48] 0.091[48]
Despina 0.14  75.±3.[48] 1.3 22.00[48] 0.090[48]
Galatea 0.25  88.±4.[48] 1.3 21.85[48] 0.079[48]
Larissa 0.33  97.±3.[48] 1.3 21.49[48] 0.091[48]
Proteus 3.36  210.±7.[48] 1.3 19.75[48] 0.096[48]
Halimede 0.006  31.0[49] 1.5 24.5R[49] 0.04[49]
Psamathe 0.001  20.0[49] 1.5 25.5R[49] 0.04[49]
Sao 0.006  22.0[49] 1.5 25.5R[49] 0.04[49]
Laomedeia 0.006  21.0[49] 1.5 25.5R[49] 0.04[49]
Neso 0.011  30.0[49] 1.5 24.6R[49] 0.04[49]
S/2004 N1 0.0003  9.0[62] 1.3 26.5V[62] 0.10[62]

Pluto's Satellites
Sat. GM
(km3/sec2)
Mean radius
(km)
Mean density
(g/cm3)
Magnitude
V0 or R
Geometric
Albedo
Charon 102.3±0.2[66] 603.6±1.4[51] 1.664±0.012 17.26±0.01[52] 0.372±0.012[52]
Nix 0.0013±0.0023[66] 13.0±2.[63] 2.1 23.4V±0.2[63] 0.35[63]
Hydra 0.0065±0.0022[66] 30.5±4.[63] 0.8 22.9V±0.1[63] 0.35[63]
Kerberos 0.0011±0.0005[66] 14.0[64] 1.4 26.1V±0.3[64] 0.35[64]
Styx 0.0000±0.0008[66] 10.0[65] ? 27.0V±0.3[65] 0.35[65]

Table Column Headings

GM GM: G = 6.67259x10-20(kg-1 km3 sec-2), M = mass (kg), if the density is assumed (i. e. has no
uncertainty) the value is computed from the density and mean radius
Mean radius Mean radius: if no uncertainty is given, the value is computed from the magnitude and albedo
Mean density Mean density: derived from the GM and mean radius when an uncertainty is given, otherwise assumed
Magnitude Mean opposition magnitude: V0, or red magnitude, R
Geometric Albedo Geometric albedo

References

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