2001 RJ4

2001RJ4, 57360, K01R04J

All data for this body: [vot]

MPC data
Name (number) 2001 RJ4 (57360)
a 2.38222
e 0.15602
i / sin(i) 6.6442 / 0.11570
q 2.01055
Q 2.75390
ω 178.4644
Node 298.2179
m 31.7233
n 0.2681
Epoch 2460800.5
nobs 1725
nopp 19
Years observed 1998-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.383
ep 0.189
sin(ip) 0.127
G 0.150
H 15.300
Mass
D 2.49 0.118
pV 0.312 0.0554
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.664
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3831 0.1894 0.1269 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.49 0.118 0.118 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.312 0.0554 0.0554 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
15.30 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 0.944 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT