Rhea

00577, 1905 UR, 1905UR, 1912 AC, 1912AC, 1943 QD, 1943QD, 1949 SF1, 1949SF1, 1952 DC, 1952DC, J05U00R, J12A00C, J43Q00D, J49S01F, J52D00C

All data for this body: [vot]

MPC data
Name (number) Rhea (577)
a 3.11361
e 0.15373
i / sin(i) 5.2981 / 0.09234
q 2.63495
Q 3.59227
ω 329.6282
Node 328.4794
m 321.1898
n 0.1794
Epoch 2460800.5
nobs 8561
nopp 60
Years observed 1905-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.118
ep 0.142
sin(ip) 0.105
G 0.150
H 9.460
Mass
D 41.61 0.721
pV 0.163 0.0032
Value
Rotational Period 12.240
Period quality 3-
Spectral Class S
Spectral Class Score 6.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1177 0.1425 0.1055 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
38.23 1.700 1.700 Masiero 2012ApJ...759L...8M NEATM
39.53 2.300 2.300 Tedesco 2002AJ....123.1056T STM
40.23 4.624 4.624 Ryan&Woodward 2010AJ....140..933R IRAS-STM
40.71 0.970 0.970 Usui 2011PASJ...63.1117U NEATM
41.45 8.290 8.290 Ali-Lagoa 2018A&A...612A..85A NEATM
42.39 8.480 8.480 Ali-Lagoa 2018A&A...612A..85A NEATM
45.09 6.570 6.570 Masiero 2012ApJ...759L...8M NEATM
52.46 2.088 2.088 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.102 0.0084 0.0084 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.173 0.0035 0.0035 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.179 0.0230 0.0230 Tedesco 2002AJ....123.1056T STM
0.196 0.0780 0.0780 Ali-Lagoa 2018A&A...612A..85A NEATM
0.205 0.0820 0.0820 Ali-Lagoa 2018A&A...612A..85A NEATM
0.230 0.0360 0.0360 Masiero 2012ApJ...759L...8M NEATM
0.358 0.3320 0.3320 Masiero 2012ApJ...759L...8M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.46 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.5 1 Synodic Angeli 2001AJ....121.2245A Lightcurve
12.249 3- Synodic Alkema 2013MPBu...40..133A Lightcurve
12.2531 2 Synodic Pal 2020ApJS..247...26P Lightcurve
12.25583 2 Sidereal Durech 2019A&A...631A...2D Model
12.257 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
12.2667 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT