1998 SR139

1998SR139, 1999 XQ90, 1999XQ90, 44413, J98SD9R, J99X90Q

All data for this body: [vot]

MPC data
Name (number) 1998 SR139 (44413)
a 2.74973
e 0.13232
i / sin(i) 6.1292 / 0.10677
q 2.38588
Q 3.11357
ω 312.6444
Node 274.9510
m 323.7287
n 0.2162
Epoch 2460200.5
nobs 2834
nopp 21
Years observed 1991-2023
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.749
ep 0.164
sin(ip) 0.128
Value Standard error
G 0.150
H 13.840
Mass
D 9.97 0.067
pV 0.065 0.0051
Rotational Period 9.523
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7495 0.1642 0.1276 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.24 0.167 0.167 Masiero 2011ApJ...741...68M NEATM
8.77 1.810 1.810 Masiero 2021PSJ.....2..162M NEATM
9.92 0.073 0.073 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.064 0.0058 0.0058 Masiero 2011ApJ...741...68M NEATM
0.067 0.0300 0.0540 Masiero 2021PSJ.....2..162M NEATM
0.070 0.0112 0.0112 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
13.84 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.52 Durech 2023A&A...675A..24D Model
9.52 Pal 2020ApJS..247...26P Lightcurve