Douglas

02684, 1960DE, 1972NY, 1978PO2, 1978RU4, 1978SE4, 1981AH1, J60D00E, J72N00Y, J78P02O, J78R04U, J78S04E, J81A01H

All data for this body: [vot]

MPC data
Name (number) Douglas (2684)
Packed designation 02684
a 3.04705
e 0.04805
i / sin(i) 9.9397 / 0.17261
q 2.90063
Q 3.19348
ω 109.0597
Node 150.6722
m 124.6496
n 0.1853
Epoch 2459600.5
nobs 2891
nopp 31
Years observed 1960-2022
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.050
ep 0.063
sin(ip) 0.162
Value Standard error
G 0.150
H 11.700
Mass
D 15.99 0.242
pV 0.159 0.0081
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos 0.8100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0495 0.0634 0.1624 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.96 0.255 0.255 Masiero 2011ApJ...741...68M NEATM
16.28 0.780 0.780 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.159 0.0084 0.0084 Masiero 2011ApJ...741...68M NEATM
0.167 0.0320 0.0320 Masiero 2012ApJ...759L...8M 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
11.70 MPC-2022-01-18 MPC-2022-01-18 Phot