1985 RJ

1985RJ, 1997 EM50, 1997EM50, 42480, J85R00J, J97E50M

All data for this body: [vot]

MPC data
Name (number) 1985 RJ (42480)
a 2.64796
e 0.28302
i / sin(i) 12.1053 / 0.20971
q 1.89853
Q 3.39739
ω 120.0888
Node 182.4505
m 102.4098
n 0.2287
Epoch 2460800.5
nobs 1940
nopp 22
Years observed 1985-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.647
ep 0.247
sin(ip) 0.222
G 0.150
H 14.980
Mass
D 6.85 0.081
pV 0.047 0.0033
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.610
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6465 0.2475 0.2224 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.86 1.430 1.430 Masiero 2021PSJ.....2..162M NEATM
4.94 1.260 1.260 Nugent 2016AJ....152...63N NEATM
5.06 0.890 0.890 Nugent 2016AJ....152...63N NEATM
6.64 0.199 0.199 Masiero 2011ApJ...741...68M NEATM
6.91 0.092 0.092 Masiero 2011ApJ...741...68M NEATM
7.00 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
7.10 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
7.30 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
7.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.045 0.0036 0.0036 Masiero 2011ApJ...741...68M NEATM
0.053 0.0096 0.0096 Masiero 2011ApJ...741...68M NEATM
0.068 0.0270 0.0460 Masiero 2021PSJ.....2..162M NEATM
0.080 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.080 0.0600 0.0600 Nugent 2016AJ....152...63N 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
14.98 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
B B 0.5256 0.5256 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.36 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.815 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT