1997 GR18

1997GR18, 2007 TK49, 2007TK49, H8376, J97G18R, K07T49K

All data for this body: [vot]

MPC data
Name (number) 1997 GR18 (178376)
a 2.62429
e 0.12729
i / sin(i) 13.3989 / 0.23173
q 2.29026
Q 2.95832
ω 228.3404
Node 20.8166
m 178.0493
n 0.2318
Epoch 2460800.5
nobs 731
nopp 18
Years observed 1960-2025
rms 0.89
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.623
ep 0.144
sin(ip) 0.227
G 0.150
H 15.700
Mass
D 2.29 0.281
pV 0.213 0.0606
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
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.0800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6230 0.1436 0.2271 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.29 0.281 0.281 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.213 0.0606 0.0606 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
15.70 MPC-2023-12-04 MPC-2023-12-04 Phot