1998 SD54

1998SD54, 2000 AS159, 2000AS159, 44377, J98S54D, K00AF9S

All data for this body: [vot]

MPC data
Name (number) 1998 SD54 (44377)
a 2.70461
e 0.11682
i / sin(i) 3.6704 / 0.06402
q 2.38865
Q 3.02058
ω 3.0875
Node 358.4942
m 353.1756
n 0.2216
Epoch 2460800.5
nobs 1320
nopp 23
Years observed 1996-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.705
ep 0.084
sin(ip) 0.072
G 0.150
H 15.070
Mass
D 4.59 0.230
pV 0.104 0.0119
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7047 0.0840 0.0724 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.48 0.305 0.305 Masiero 2011ApJ...741...68M NEATM
4.74 0.351 0.351 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.103 0.0122 0.0122 Masiero 2011ApJ...741...68M NEATM
0.116 0.0524 0.0524 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
15.07 MPC-2023-12-04 MPC-2023-12-04 Phot