1999 LU4

1999LU4, 1971 OL, 1971OL, 1994 AK3, 1994AK3, 40316, J71O00L, J94A03K, J99L04U

All data for this body: [vot]

MPC data

Name (number)	1999 LU4 (40316)
a	2.32729
e	0.24923
i / sin(i)	23.0798 / 0.39201
q	1.74725
Q	2.90732
ω	243.0381
Node	125.3221
m	9.9494
n	0.2776
Epoch	2460800.5

n_obs	2705
n_opp	19
Years observed	1999-2024
rms	0.75

Best values

	Value	Standard error
Parent	Phocaea (25)

a_p	2.327
e_p	0.231
sin(i_p)	0.388
G	0.150
H	14.070
Mass
D	8.81	0.068
pV	0.065	0.0113

	Value
Rotational Period
Period quality	None
Spectral Class	C
Spectral Class Score	5.028

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
25	Phocaea	0	Phocaea		Novakovic	2019EPSC...13.1671N	HCM
25	Phocaea	701	Phocaea	-0.6800	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.3274	0.2312	0.3875	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
6.85	1.640	1.640	Nugent	2016AJ....152...63N	NEATM
7.58	2.160	2.160	Masiero	2020PSJ.....1....5M	NEATM
8.81	0.068	0.068	Masiero	2011ApJ...741...68M	NEATM
9.60	2.820	2.820	Masiero	2021PSJ.....2..162M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.047	0.0260	0.0560	Masiero	2021PSJ.....2..162M	NEATM
0.066	0.0122	0.0122	Masiero	2011ApJ...741...68M	NEATM
0.080	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.085	0.0730	0.0730	Masiero	2020PSJ.....1....5M	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
14.07			MPC-2023-12-04	MPC-2023-12-04	Phot

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
C		0.838		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S	S	0.0270	0.0270	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT