Megumi

03774, 1931 BG, 1931BG, 1933 OA, 1933OA, 1974 FW1, 1974FW1, 1974 HO3, 1974HO3, 1976 YL6, 1976YL6, 1986 TH1, 1986TH1, 1987 YC, 1987YC, J31B00G, J33O00A, J74F01W, J74H03O, J76Y06L, J86T01H, J87Y00C

All data for this body: [vot]

MPC data

Name (number)	Megumi (3774)
a	3.00909
e	0.05214
i / sin(i)	9.1889 / 0.15969
q	2.85219
Q	3.16599
ω	282.5341
Node	291.6056
m	204.7514
n	0.1888
Epoch	2460200.5

n_obs	3836
n_opp	31
Years observed	1931-2023
rms	0.50

Best values

	Value	Standard error
Parent	Eos (221)

a_p	3.005
e_p	0.085
sin(i_p)	0.181

	Value	Standard error
G	0.150
H	11.340
Mass
D	18.98	0.111
pV	0.137	0.0110

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
221	Eos	606	Eos	-0.7900	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.0052	0.0851	0.1808	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Oct-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
18.25	0.150	0.150	Masiero	2014ApJ...791..121M	NEATM
19.18	0.250	0.250	Masiero	2014ApJ...791..121M	NEATM
19.68	0.317	0.317	Masiero	2011ApJ...741...68M	NEATM
20.15	4.030	4.030	Ali-Lagoa	2018A&A...612A..85A	NEATM
20.88	0.307	0.307	Masiero	2011ApJ...741...68M	NEATM
21.53	1.340	1.340	Usui	2011PASJ...63.1117U	NEATM
24.08	4.820	4.820	Ali-Lagoa	2018A&A...612A..85A	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.111	0.0440	0.0440	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.123	0.0225	0.0225	Masiero	2011ApJ...741...68M	NEATM
0.138	0.0158	0.0158	Masiero	2011ApJ...741...68M	NEATM
0.140	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM
0.158	0.0630	0.0630	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.160	0.0300	0.0300	Masiero	2014ApJ...791..121M	NEATM

G data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.15			MPC-2023-12-94	MPC-2023-12-94	Phot

H data

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