1999 RA231

1999RA231, 2001 BY73, 2001BY73, 40695, J99RN1A, K01B73Y

All data for this body: [vot]

MPC data
Name (number) 1999 RA231 (40695)
a 2.52975
e 0.11418
i / sin(i) 12.7709 / 0.22105
q 2.24091
Q 2.81858
ω 225.9751
Node 133.6606
m 133.3020
n 0.2450
Epoch 2460800.5
nobs 1471
nopp 22
Years observed 1997-2025
rms 0.83
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.530
ep 0.060
sin(ip) 0.207
G 0.150
H 15.410
Mass
D 2.93 0.228
pV 0.170 0.0438
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 13.767
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5299 0.0600 0.2070 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.91 0.253 0.253 Masiero 2011ApJ...741...68M NEATM
3.00 0.525 0.525 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.163 0.0757 0.0757 Masiero 2011ApJ...741...68M NEATM
0.174 0.0537 0.0537 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
15.41 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.993 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9681 0.9681 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
SQ 0.09 Bus VIS Carvano 2010A&A...510A..43C PHOT