1991 RA11

1991RA11, 1980 XN1, 1980XN1, 1999 CZ123, 1999CZ123, 46564, J80X01N, J91R11A, J99CC3Z

All data for this body: [vot]

MPC data
Name (number) 1991 RA11 (46564)
a 3.18238
e 0.13296
i / sin(i) 17.1731 / 0.29526
q 2.75924
Q 3.60551
ω 102.7233
Node 19.8133
m 232.8188
n 0.1736
Epoch 2460800.5
nobs 3620
nopp 24
Years observed 1971-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.189
ep 0.124
sin(ip) 0.296
G 0.150
H 12.240
Mass
D 21.12 0.077
pV 0.041 0.0027
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 5.838
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
375 Ursula 0 Ursula Novakovic 2019EPSC...13.1671N HCM
375 Ursula 631 Ursula Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1893 0.1238 0.2957 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.00 5.720 5.720 Nugent 2016AJ....152...63N NEATM
20.43 0.103 0.103 Masiero 2011ApJ...741...68M NEATM
21.54 0.120 0.120 Masiero 2014ApJ...791..121M NEATM
21.83 5.888 5.888 Masiero 2017AJ....154..168M NEATM
24.91 1.700 1.700 Usui 2011PASJ...63.1117U NEATM
25.48 5.100 5.100 Ali-Lagoa 2018A&A...612A..85A NEATM
27.64 0.440 0.440 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.037 0.0030 0.0030 Masiero 2012ApJ...759L...8M NEATM
0.040 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.046 0.0239 0.0239 Masiero 2017AJ....154..168M NEATM
0.050 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.067 0.0108 0.0108 Masiero 2011ApJ...741...68M 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
12.24 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C 0.5674 0.5674 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.973 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT