|
Natural Satellites Data Center. Parameters and constants
Satellites of Mars
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
|
M1 Phobos
|
13.00, 11.39, 9.07
|
Willner, 2010
|
Images from Mars Express Mission
|
M2 Deimos
|
7.8, 6.0, 5.1
|
Thomas, 1993
|
Limb coordinates from spacecraft images
|
Satellites of Jupiter
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
|
J1 Io
|
1829.7±0.3, 1819.2±0.3, 1815.8±0.3
|
Thomas, 1998
|
Limb coordinates from spacecraft images
|
J2 Europa
|
1562.6, 1560.3, 1559.5
|
Nimmo et al., 2007
|
Images from the Galileo mission
|
J3 Ganymede
|
2631.2±1.7
|
Anderson et al., 2001a
|
Images from the Galileo mission
|
J4 Callisto
|
2410.3±1.5
|
Anderson et al., 2001b
|
Images from the Galileo mission
|
J5 Amalthea
|
125±2, 73±2, 64±2
|
Weinwurm , 2006
|
Images from the Galileo mission
|
J6 Himalia
|
75, 60, 60
|
Porco et al., 2003
|
Cassini Imaging
|
J7 Elara
|
43
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J8 Pasiphae
|
30
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J9 Sinope
|
19
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J10 Lysithea
|
18
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J11 Carme
|
23
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J12 Ananke
|
14
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J13 Leda
|
10
|
Rettig, Walsh, 2002
|
Photometric observations
with the albedo of 0.04
(supposed)
|
J14 Tebe
|
58, 49, 42, as=49.3±2.0
|
Thomas et al. 1998
|
Images made by "Galileo"
|
J15 Adrastea
|
10, 8, 7, as=8.2±2.0
|
Thomas et al. 1998
|
Images made by "Galileo"
|
J16 Metis
|
30, 20, 20, as=21.5±2.0
|
Thomas et al. 1998
|
Images made by "Galileo"
|
Estimations made on the basis of reduction
of the photometric data published in the MPC (Emel'yanov, Ural'skaya, 2011, Solar System Research, 45, 377)
( See photometric parameters of sateliites in this database)
using the equation
(Bowell et al., 1989))
log pH=6.114-2 log(2r)-0.4 H ,
where r - radius of satellite,
H - absolute magnitude in R band at solar distance 1 au, observer distance 1 au,
reduced at phase angle α=0°, and pH - supposed albedo
in R band.
Satellites of Jupiter
|
Radius, km
|
Source of the data
|
J17 Callirrhoe | 4.5 | Photometry and supposed albedo of 0.04 |
J18 Themisto | 3.9 | Photometry and supposed albedo of 0.04 |
J19 Megaclite | 3.3 | Photometry and supposed albedo of 0.04 |
J20 Taygete | 2.7 | Photometry and supposed albedo of 0.04 |
J21 Chaldene | 2.4 | Photometry and supposed albedo of 0.04 |
J22 Harpalyke | 2.4 | Photometry and supposed albedo of 0.04 |
J23 Kalyke | 3.0 | Photometry and supposed albedo of 0.04 |
J24 Iocaste | 2.9 | Photometry and supposed albedo of 0.04 |
J25 Erinome | 1.9 | Photometry and supposed albedo of 0.04 |
J26 Isonoe | 2.2 | Photometry and supposed albedo of 0.04 |
J27 Praxidike | 3.7 | Photometry and supposed albedo of 0.04 |
J28 Autonoe | 2.4 | Photometry and supposed albedo of 0.04 |
J29 Thyone | 2.3 | Photometry and supposed albedo of 0.04 |
J30 Hermippe | 3.0 | Photometry and supposed albedo of 0.04 |
J31 Aitne | 1.9 | Photometry and supposed albedo of 0.04 |
J32 Eurydome | 2.0 | Photometry and supposed albedo of 0.04 |
J33 Euanthe | 2.0 | Photometry and supposed albedo of 0.04 |
J34 Euporie | 1.6 | Photometry and supposed albedo of 0.04 |
J35 Orthosie | 1.8 | Photometry and supposed albedo of 0.04 |
J36 Sponde | 1.7 | Photometry and supposed albedo of 0.04 |
J37 Kale | 1.6 | Photometry and supposed albedo of 0.04 |
J38 Pasithee | 1.4 | Photometry and supposed albedo of 0.04 |
J39 Hegemone | 1.8 | Photometry and supposed albedo of 0.04 |
J40 Mneme | 1.8 | Photometry and supposed albedo of 0.04 |
J41 Aoede | 2.3 | Photometry and supposed albedo of 0.04 |
J42 Thelxinoe | 1.8 | Photometry and supposed albedo of 0.04 |
J43 Arche | 1.7 | Photometry and supposed albedo of 0.04 |
J44 Kallichore | 1.6 | Photometry and supposed albedo of 0.04 |
J45 Helike | 2.3 | Photometry and supposed albedo of 0.04 |
J46 Carpo | 1.8 | Photometry and supposed albedo of 0.04 |
J47 Eukelade | 2.3 | Photometry and supposed albedo of 0.04 |
J48 Cyllene | 1.6 | Photometry and supposed albedo of 0.04 |
J49 Kore | 1.9 | Photometry and supposed albedo of 0.04 |
J50 Herse | 1.6 | Photometry and supposed albedo of 0.04 |
S/2003 J 2 | 1.4 | Photometry and supposed albedo of 0.04 |
S/2003 J 3 | 1.3 | Photometry and supposed albedo of 0.04 |
S/2003 J 4 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2003 J 5 | 2.6 | Photometry and supposed albedo of 0.04 |
S/2003 J 9 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2003 J 10 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2003 J 12 | 1.1 | Photometry and supposed albedo of 0.04 |
S/2003 J 15 | 1.3 | Photometry and supposed albedo of 0.04 |
S/2003 J 16 | 1.3 | Photometry and supposed albedo of 0.04 |
S/2003 J 18 | 1.7 | Photometry and supposed albedo of 0.04 |
S/2003 J 19 | 1.3 | Photometry and supposed albedo of 0.04 |
S/2003 J 23 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2010 J 1 | 1.5 | Photometry and supposed albedo of 0.04 |
S/2010 J 2 | 1.0 | Photometry and supposed albedo of 0.04 |
S/2011 J 1 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2011 J 2 | 1.2 | Photometry and supposed albedo of 0.04 |
S/2016 J 1 | 1.7 | Photometry and supposed albedo of 0.04 |
S/2017 J 1 | 2.3 | Photometry and supposed albedo of 0.04 |
Satellites of Saturn
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
|
S1 Mimas
|
209.1, 196.2, 191.4, as=198.8±0.6
207.8±0.5, 196.7±0.5, 190.6±0.3, as=198.2±0.4
|
Dermott and Thomas, 1988
Thomas, 2010
|
Limb profiles from Voyager images
Cassini imaging
|
S2 Enceladus
|
256.3, 247.3, 244.6, as=249.4±0.3
256.6±0.3, 251.4±0.2, 248.3±0.2, as=252.1±0.2
|
Dermott and Thomas, 1994
Thomas, 2010
|
Limb profiles from Voyager images
Cassini imaging
|
S3 Tethys
|
535.6, 528.2, 525.8, as=529.9±1.5
538.4±0.3, 528.3±1.1, 526.3±0.6, as=531.0±0.6
|
Thomas and Dermott, 1991
Thomas, 2010
|
Limb profiles from Voyager images
Cassini imaging
|
S4 Dione
|
559±5
563.4±0.6, 561.3±0.5, 559.6±0.4, as=561.4±0.4
|
Davies and Katayama, 1983a
Thomas, 2010
|
Voyager images
Cassini imaging
|
S5 Rhea
|
764±4
765.0±0.7, 763.1±0.6, 762.4±0.6, as=763.5±0.6
|
Davies and Katayama, 1983b
Thomas, 2010
|
Voyager images
Cassini imaging
|
S6 Titan
|
2574.32±0.05, 2574.36±0.03, 2574.91±0.11, as=2574.73±0.09
|
Zebker et al., 2009
|
Cassini imaging
|
S7 Hyperion
|
180.1±2.0, 133.0±4.5, 102.7±4.5, as=135±4
|
Thomas, 2010
|
Cassini imaging
|
S8 Iapetus
|
718±8
745.7±2.9, 745.7±2.9, 712.1±1.6, as=734.3±2.8
|
Davies and Katayama, 1984
Thomas, 2010
|
Voyager images
Cassini imaging
|
S9 Phoebe
|
109.4±1.4, 108.5±0.6, 101.8±0.3, as=106.5±0.7
|
Thomas, 2010
|
Cassini imaging
|
S10 Janus
|
101.5±1.9, 92.5±1.2, 76.3±1.2, as=89.5±1.4
|
Thomas, 2010
|
Cassini imaging
|
S11 Epimetheus
|
64.9±2.0, 57.0±3.7, 53.1±0.7, as=58.1±1.8
|
Thomas, 2010
|
Cassini imaging
|
S12 Helene
|
21.7±0.5, 19.1±0.3, 13.0±0.3, as=17.6±0.4
|
Thomas, 2010
|
Cassini imaging
|
S13 Telesto
|
16.3±0.5, 11.8±0.3, 10.0±0.3, as=12.4±0.4
|
Thomas, 2010
|
Cassini imaging
|
S14 Calypso
|
15.1±0.3, 11.5±2.2, 7.0±0.6, as=10.7±0.7
|
Thomas, 2010
|
Cassini imaging
|
S15 Atlas
|
20.4±1.2, 17.7±0.7, 9.4±0.8, as=15.1±0.9
|
Thomas, 2010
|
Cassini imaging
|
S16 Prometheus
|
67.8±3.1, 39.7±3.1, 29.7±1.9, as=43.1±2.7
|
Thomas, 2010
|
Cassini imaging
|
S17 Pandora
|
52.0±1.8, 40.5±2.0, 32.0±0.9, as=40.7±1.5
|
Thomas, 2010
|
Cassini imaging
|
S18 Pan
|
17.2±1.9, 15.7±1.3, 10.4±0.8, as=14.1±1.3
|
Thomas, 2010
|
Cassini imaging
|
S32 Methone
|
1.6±0.6, 1.6±0.6, 1.6±0.6, as=1.6±0.6
|
Thomas, 2010
|
Cassini imaging
|
S33 Pallene
|
2.9±0.6, 2.8±0.8, 2.0±0.4, as=2.5±0.6
|
Thomas, 2010
|
Cassini imaging
|
S34 Polydeuce
|
1.5±0.6, 1.2±0.4, 1.0±0.2, as=1.3±0.4
|
Thomas, 2010
|
Cassini imaging
|
S/2004 S3
|
2.5
|
Porco et al., 2005
|
Images by "Cassini" and supposed albedo
|
S/2004 S4
|
2.5
|
Porco et al., 2005
|
Images by "Cassini" and supposed albedo
|
S/2004 S6
|
2.5
|
Porco et al., 2005
|
Images by "Cassini" and supposed albedo
|
S35 Daphnis
|
4.3±0.7, 4.1±0.9, 3.2±0.8, as=3.8±0.8
|
Thomas, 2010
|
Cassini imaging
|
S49 Anthe
|
1.0
|
Porco et al., 2007
|
Cassini imaging
|
S53 Aegaeon
|
0.25
|
IAUC 9023
|
Photometric observations with Cassini images
|
S/2009 S 1
|
0.15
|
IAUC 9091
|
Cassini Imaging
|
Estimations made on the basis of reduction
of the photometric data published in the MPC (Emel'yanov, Ural'skaya, 2011, Solar System Research, 45, 377)
( See photometric parameters of sateliites in this database)
using the equation
(Bowell et al., 1989))
log pH=6.114-2 log(2r)-0.4 H ,
where r - radius of satellite,
H - absolute magnitude in R band at solar distance 1 au, observer distance 1 au,
reduced at phase angle α=0°, and pH - supposed albedo
in R band.
Satellites of Saturn
|
Radius, km
|
Source of the data
|
S19 Ymir | 9.4 | Photometry and supposed albedo of 0.06 |
S20 Paaliaq | 11.0 | Photometry and supposed albedo of 0.06 |
S21 Tarvos | 6.9 | Photometry and supposed albedo of 0.06 |
S22 Ijiraq | 5.8 | Photometry and supposed albedo of 0.06 |
S23 Suttungr | 2.9 | Photometry and supposed albedo of 0.06 |
S24 Kiviuq | 8.0 | Photometry and supposed albedo of 0.06 |
S25 Mundilfari | 3.0 | Photometry and supposed albedo of 0.06 |
S26 Albiorix | 13.7 | Photometry and supposed albedo of 0.06 |
S27 Skathi | 3.3 | Photometry and supposed albedo of 0.06 |
S28 Erriapo | 5.1 | Photometry and supposed albedo of 0.06 |
S29 Siarnaq | 24.3 | Photometry and supposed albedo of 0.06 |
S30 Thrymr | 3.7 | Photometry and supposed albedo of 0.06 |
S31 Narvi | 2.7 | Photometry and supposed albedo of 0.06 |
S36 Aegir | 2.3 | Photometry and supposed albedo of 0.06 |
S37 Bebhionn | 2.5 | Photometry and supposed albedo of 0.06 |
S38 Bergelmir | 2.5 | Photometry and supposed albedo of 0.06 |
S39 Bestla | 2.9 | Photometry and supposed albedo of 0.06 |
S40 Farbauti | 1.9 | Photometry and supposed albedo of 0.06 |
S41 Fenrir | 1.8 | Photometry and supposed albedo of 0.06 |
S42 Fornjot | 2.3 | Photometry and supposed albedo of 0.06 |
S43 Hati | 2.2 | Photometry and supposed albedo of 0.06 |
S44 Hyrrokkin | 3.9 | Photometry and supposed albedo of 0.06 |
S45 Kari | 2.9 | Photometry and supposed albedo of 0.06 |
S46 Loge | 2.4 | Photometry and supposed albedo of 0.06 |
S47 Skoll | 2.4 | Photometry and supposed albedo of 0.06 |
S48 Surtur | 2.0 | Photometry and supposed albedo of 0.06 |
S50 Jarnsaxa | 1.9 | Photometry and supposed albedo of 0.06 |
S51 Greip | 2.1 | Photometry and supposed albedo of 0.06 |
S52 Tarqeq | 2.8 | Photometry and supposed albedo of 0.06 |
S/2004 S 7 | 2.3 | Photometry and supposed albedo of 0.06 |
S/2004 S 12 | 2.0 | Photometry and supposed albedo of 0.06 |
S/2004 S 13 | 2.1 | Photometry and supposed albedo of 0.06 |
S/2004 S 17 | 1.7 | Photometry and supposed albedo of 0.06 |
S/2006 S 1 | 2.3 | Photometry and supposed albedo of 0.06 |
S/2006 S 3 | 1.8 | Photometry and supposed albedo of 0.06 |
S/2007 S 2 | 2.5 | Photometry and supposed albedo of 0.06 |
S/2007 S 3 | 1.9 | Photometry and supposed albedo of 0.06 |
Satellites of Uranus
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
|
U1 Ariel
|
581.1±0.9, 577.9±0.6, 577.7±1.0
|
Thomas P.C., 1988
|
Use of limb coordinates on the images by Voyager
|
U2 Umbriel
|
584.7±2.8, 584.7±2.8, 584.7±2.8
|
Thomas P.C., 1988
|
Use of limb coordinates on the images by Voyager
|
U3 Titania
|
788.9±1.8, 788.9±1.8, 788.9±1.8
788.4±0.6
|
Thomas P.C., 1988
Widemann et al, 2009
|
Use of limb coordinates on the images by Voyager
From the September 8, 2001 stellar occultation
|
U4 Oberon
|
761.4±2.6, 761.4±2.6, 761.4±2.6
|
Thomas P.C., 1988
|
Use of limb coordinates on the images by Voyager
|
U5 Miranda
|
240.4±0.6, 234.2±0.9, 232.9±1.2
|
Thomas P.C., 1988
|
Use of limb coordinates on the images by Voyager
|
U6 Cordelia
|
25, 18, 18 (±3)
|
Karkoschka, 2001
|
Extended search of images made by Voyager
|
U7 Ophelia
|
27, 19, 19 (±4)
|
Karkoschka, 2001
|
Extended search of images made by Voyager
|
U8 Bianca
|
32, 23, 23 (±2)
27±2
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U9 Cressida
|
46, 37, 37 (±2)
41±2
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U10 Desdemona
|
45, 27, 27 (±4)
35±4
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U11 Juliet
|
75, 37, 37 (±4)
53±4
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U12 Portia
|
78, 63, 63 (±4)
70±4
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U13 Rosalind
|
36, 36, 36 (±6)
36±6
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U14 Belinda
|
64, 32, 32 (±8)
45±8
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U15 Puck
|
81, 81, 81 (±2)
81±2
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U25 Perdita
|
15, 15, 15 (±3)
13.3±0.7
|
Karkoschka, 2001
Showalter, Lissauer, 2006
|
Extended search of images made by Voyager
HST photometry
|
U26 Mab
|
12.4±0.5
|
Showalter, Lissauer, 2006
|
HST photometry
|
U27 Cupid
|
8.9±0.7
|
Showalter, Lissauer, 2006
|
HST photometry
|
Estimations made on the basis of reduction
of the photometric data published in the MPC (Emel'yanov, Ural'skaya, 2011, Solar System Research, 45, 377)
( See photometric parameters of sateliites in this database)
using the equation
(Bowell et al., 1989))
log pH=6.114-2 log(2r)-0.4 H ,
where r - radius of satellite,
H - absolute magnitude in R band at solar distance 1 au, observer distance 1 au,
reduced at phase angle α=0°, and pH - supposed albedo
in R band.
[Sheppard et al.] - radius values (km) published in
Sheppard et al., 2005
Satellites of Uranus
|
Radius, km
|
Source of the data
|
[Sheppard et al.], km
|
U16 Caliban | 48.3 | Photometry and supposed albedo of 0.04 | 36 |
U17 Sycorax | 86.4 | Photometry and supposed albedo of 0.04 | 75 |
U18 Prospero | 25.0 | Photometry and supposed albedo of 0.04 | 25 |
U19 Setebos | 27.0 | Photometry and supposed albedo of 0.04 | 24 |
U20 Stephano | 16.9 | Photometry and supposed albedo of 0.04 | 16 |
U21 Trinculo | 9.4 | Photometry and supposed albedo of 0.04 | 9 |
U22 Francisco | 9.7 | Photometry and supposed albedo of 0.04 | 11 |
U23 Margaret | 9.4 | Photometry and supposed albedo of 0.04 | 10 |
U24 Ferdinand | 10.6 | Photometry and supposed albedo of 0.04 | 10 |
Satellites of Neptune
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
(EB - Earth-based)
|
N1 Triton
|
1354.6±0.9, 1352.8±0.9, 1352.4±0.9
|
Thomas, 2000
|
Limb profiles from Voyager 2
|
N2 Nereid
|
170±25
|
Thomas et al., 1991
|
Images made by Voyager
|
N3 Naiad
|
48, 30, 26, as=33±3
|
Karkoschka E., 2003
|
Images made by Voyager
|
N4 Thalassa
|
54, 50, 26, as=41±3
|
Karkoschka E., 2003
|
Images made by Voyager
|
N5 Despina
|
90, 74, 64, as=75±3
|
Karkoschka E., 2003
|
Images made by Voyager
|
N6 Galatea
|
102, 92, 72, as=88±4
|
Karkoschka E., 2003
|
Images made by Voyager
|
N7 Larissa
|
108, 102, 84, as=97±3
|
Karkoschka E., 2003
|
Images made by Voyager
|
N8 Proteus
|
210±7
|
Karkoschka E., 2003
|
Images made by Voyager
|
S/2004 N 1
|
10
|
CBET 3586
|
HST observations
|
Estimations made on the basis of reduction
of the photometric data published in the MPC (Emel'yanov, Ural'skaya, 2011, Solar System Research, 45, 377)
( See photometric parameters of sateliites in this database)
using the equation
(Bowell et al., 1989))
log pH=6.114-2 log(2r)-0.4 H ,
where r - radius of satellite,
H - absolute magnitude in R band at solar distance 1 au, observer distance 1 au,
reduced at phase angle α=0°, and pH - supposed albedo
in R band.
[Sheppard et al.] - radius values (km) published in
Sheppard et al., 2006
Satellites of Neptune
|
Radius, km
|
Source of the data
|
[Sheppard et al.], km
|
N9 Halimede | 36.9 | Photometry and supposed albedo of 0.04 | 31 |
N10 Psamathe | 21.9 | Photometry and supposed albedo of 0.04 | 20 |
N11 Sao | 20.9 | Photometry and supposed albedo of 0.04 | 22 |
N12 Laomedeia | 24.7 | Photometry and supposed albedo of 0.04 | 21 |
N13 Neso | 28.0 | Photometry and supposed albedo of 0.04 | 30 |
Satellites of Pluto
|
a1, a2, a3
or as [km]
|
References
|
Sources of the data
|
P1 Charon
|
593±13
603.6±1.4
606.0±1.5
|
Tholen and Buie, 1990
Sicardy et al. 2006
Person et al. 2006
|
Mutual event observations
Photometry of stellar occultations
Photometry of stellar occultations
|
P2 Nix
|
44
25. 17.5, 16.5
|
Tholen et al., 2008
Weaver et al., 2016
|
From masse with the supposed density of 1.63 g/cm3
Images observed by New Horizons
|
P3 Hydra
|
36
32.5, 22.5, 12.5
|
Tholen et al., 2008
Weaver et al., 2016
|
From masse with the supposed density of 1.63 g/cm3
Images observed by New Horizons
|
P4 Kerberos
|
9.5, 5, 4.5
|
Weaver et al., 2016
|
Images observed by New Horizons
|
P5 Styx
|
8, 4.5, 4
|
Weaver et al., 2016
|
Images observed by New Horizons
|
|
|