Sisiliang

18771, 1981QW3, 1999JA26, J81Q03W, J99J26A

All data for this body: [vot]

MPC data
Name (number) Sisiliang (18771)
Packed designation 18771
a 2.39986
e 0.18957
i / sin(i) 2.1450 / 0.03743
q 1.94491
Q 2.85481
ω 120.0719
Node 208.8318
m 311.1079
n 0.2651
Epoch 2459600.5
nobs 1254
nopp 20
Years observed 1981-2021
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.401
ep 0.153
sin(ip) 0.049
Value Standard error
G 0.150
H 15.210
Mass
D 5.60 0.118
pV 0.057 0.0063
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -0.2200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4010 0.1533 0.0494 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.33 0.880 0.880 Masiero 2020PSJ.....1....5M NEATM
5.40 0.228 0.228 Masiero 2011ApJ...741...68M NEATM
5.71 0.139 0.139 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.054 0.0079 0.0079 Masiero 2011ApJ...741...68M NEATM
0.061 0.0108 0.0108 Masiero 2011ApJ...741...68M NEATM
0.078 0.0390 0.0390 Masiero 2020PSJ.....1....5M 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
15.21 MPC-2022-01-18 MPC-2022-01-18 Phot