1999 GU20

1999GU20, 2001 TA44, 2001TA44, 56203, J99G20U, K01T44A

All data for this body: [vot]

MPC data
Name (number) 1999 GU20 (56203)
a 2.59860
e 0.05926
i / sin(i) 15.2859 / 0.26364
q 2.44460
Q 2.75260
ω 218.0473
Node 46.9542
m 26.5209
n 0.2353
Epoch 2460800.5
nobs 2826
nopp 20
Years observed 1999-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Maria (170)
 
ap 2.598
ep 0.076
sin(ip) 0.252
G 0.150
H 13.940
Mass
D 4.86 0.072
pV 0.248 0.0376
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
1160 Illyria -1 Illyria -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
170 Maria 0 Maria Novakovic 2019EPSC...13.1671N HCM
170 Maria 506 Maria 0.4200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5980 0.0758 0.2522 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.86 0.072 0.072 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.248 0.0376 0.0376 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
13.94 MPC-2023-12-04 MPC-2023-12-04 Phot