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 3.46189
e 0.13191
i / sin(i) 2.9386 / 0.05127
q 3.00523
Q 3.91854
ω 160.0636
Node 238.1839
m 288.7990
n 0.1530
Epoch 2460200.5
nobs 1735
nopp 21
Years observed 1985-2023
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.459
ep 0.106
sin(ip) 0.069
Value Standard error
G 0.150
H 13.520
Mass
D 11.88 0.361
pV 0.066 0.0087
Rotational Period
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-Oct-2022
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
13.52 MPC-2023-12-04 MPC-2023-12-04 Phot