1999 RB139

1999RB139, 1991 LU4, 1991LU4, 38341, J91L04U, J99RD9B

All data for this body: [vot]

MPC data
Name (number) 1999 RB139 (38341)
a 2.42556
e 0.15936
i / sin(i) 3.9073 / 0.06814
q 2.03903
Q 2.81208
ω 32.1684
Node 209.6031
m 356.5939
n 0.2609
Epoch 2460800.5
nobs 2241
nopp 23
Years observed 1991-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.425
ep 0.176
sin(ip) 0.075
G 0.150
H 15.380
Mass
D 5.33 0.142
pV 0.039 0.0058
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 5.553
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4255 0.1759 0.0753 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.31 1.390 1.390 Masiero 2020PSJ.....1....5M NEATM
5.33 0.143 0.143 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.039 0.0059 0.0059 Masiero 2011ApJ...741...68M NEATM
0.048 0.0410 0.0410 Masiero 2020PSJ.....1....5M 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
15.38 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B B 0.5921 0.5921 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT