Roberthelm

1998RN40, 1999XA159, 25539, J98R40N, J99XF9A

All data for this body: [vot]

MPC data
Name (number) Roberthelm (25539)
Packed designation 25539
a 2.69814
e 0.03348
i / sin(i) 6.1928 / 0.10787
q 2.60780
Q 2.78847
ω 41.4046
Node 114.3087
m 291.1045
n 0.2224
Epoch 2459600.5
nobs 1209
nopp 18
Years observed 1993-2022
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.699
ep 0.073
sin(ip) 0.091
Value Standard error
G 0.150
H 14.890
Mass
D 5.10 0.290
pV 0.098 0.0138
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6988 0.0728 0.0915 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.10 0.290 0.290 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.098 0.0138 0.0138 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.89 MPC-2022-01-18 MPC-2022-01-18 Phot