Grantham

13414, 1989 SH12, 1989SH12, 1999 UN25, 1999UN25, J89S12H, J99U25N

All data for this body: [vot]

MPC data
Name (number) Grantham (13414)
a 2.83391
e 0.06744
i / sin(i) 1.2156 / 0.02122
q 2.64279
Q 3.02504
ω 23.2297
Node 308.4190
m 191.3279
n 0.2066
Epoch 2460800.5
nobs 3500
nopp 26
Years observed 1989-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.836
ep 0.041
sin(ip) 0.039
G 0.150
H 13.850
Mass
D 4.39 0.486
pV 0.365 0.1305
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis -0.3900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8356 0.0414 0.0393 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.39 0.486 0.486 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.365 0.1305 0.1305 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
13.85 MPC-2023-12-04 MPC-2023-12-04 Phot