Donbacky

1997 DW, 1997DW, 1999 VR44, 1999VR44, 20200, J97D00W, J99V44R

All data for this body: [vot]

MPC data
Name (number) Donbacky (20200)
a 2.76631
e 0.11304
i / sin(i) 8.2775 / 0.14397
q 2.45360
Q 3.07902
ω 266.3307
Node 337.6632
m 198.7040
n 0.2142
Epoch 2460200.5
nobs 2037
nopp 22
Years observed 1990-2023
rms 0.65
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 14.340
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-Oct-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-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.34 MPC-2023-12-04 MPC-2023-12-04 Phot