Donbacky

1997DW, 1999VR44, 20200, J97D00W, J99V44R

All data for this body: [vot]

MPC data
Name (number) Donbacky (20200)
Packed designation 20200
a 2.77029
e 0.11016
i / sin(i) 8.2921 / 0.14422
q 2.46510
Q 3.07547
ω 266.2809
Node 337.7698
m 70.4883
n 0.2138
Epoch 2459600.5
nobs 1546
nopp 20
Years observed 1990-2021
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.768
ep 0.136
sin(ip) 0.158
Value Standard error
G 0.150
H 14.270
Mass
D 4.10 1.519
pV 0.182 0.1510
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 516 Gefion -0.3600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7675 0.1357 0.1576 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.10 1.519 1.519 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.182 0.1510 0.1510 Masiero 2011ApJ...741...68M 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
14.27 MPC-2022-01-18 MPC-2022-01-18 Phot