1998 RR61

1998RR61, 1985 SD4, 1985SD4, 1999 XT87, 1999XT87, 40187, J85S04D, J98R61R, J99X87T

All data for this body: [vot]

MPC data
Name (number) 1998 RR61 (40187)
a 3.46618
e 0.13315
i / sin(i) 2.9383 / 0.05126
q 3.00466
Q 3.92770
ω 160.1478
Node 238.1785
m 20.5177
n 0.1527
Epoch 2460800.5
nobs 2385
nopp 22
Years observed 1985-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.459
ep 0.106
sin(ip) 0.069
G 0.150
H 13.470
Mass
D 11.88 0.361
pV 0.066 0.0087
Value
Rotational Period
Period quality None
Spectral Class L
Spectral Class Score 3.540
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.4589 0.1056 0.0685 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.88 0.361 0.361 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.066 0.0087 0.0087 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
13.47 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
L 0.590 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT