1999 SY12

1999SY12, 40730, J99S12Y

All data for this body: [vot]

MPC data
Name (number) 1999 SY12 (40730)
a 3.15825
e 0.26704
i / sin(i) 19.4142 / 0.33239
q 2.31487
Q 4.00163
ω 253.8434
Node 126.9658
m 96.5940
n 0.1756
Epoch 2460200.5
nobs 1834
nopp 21
Years observed 1998-2023
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.166
ep 0.212
sin(ip) 0.331
Value Standard error
G 0.150
H 13.570
Mass
D 10.48 0.105
pV 0.076 0.0045
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1656 0.2120 0.3307 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.48 0.105 0.105 Masiero 2011ApJ...741...68M NEATM
12.49 3.605 3.605 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0286 0.0286 Masiero 2017AJ....154..168M NEATM
0.077 0.0046 0.0046 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
13.57 MPC-2023-12-04 MPC-2023-12-04 Phot