1999JL85

18807, 1980FJ, 1989SS14, J80F00J, J89S14S, J99J85L

All data for this body: [vot]

MPC data

Name (number)	1999JL85 (18807)
Packed designation	18807
a	2.36845
e	0.19012
i / sin(i)	26.4915 / 0.44607
q	1.91816
Q	2.81873
ω	217.9327
Node	171.1955
m	303.8549
n	0.2704
Epoch	2459600.5

n_obs	2042
n_opp	20
Years observed	1980-2021
rms	0.64

Best values

	Value	Standard error
Parent

a_p	2.368
e_p	0.198
sin(i_p)	0.436

	Value	Standard error
G	0.150
H	14.320
Mass
D	7.84	0.079
pV	0.057	0.0065

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.3682	0.1979	0.4361	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Jan-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
7.40	1.240	1.240	Nugent	2016AJ....152...63N	NEATM
7.81	0.080	0.080	Masiero	2011ApJ...741...68M	NEATM
7.82	2.418	2.418	Masiero	2017AJ....154..168M	NEATM
7.91	2.430	2.430	Masiero	2020PSJ.....1....5M	NEATM
9.19	2.450	2.450	Masiero	2020PSJ.....1....5M	NEATM
9.29	0.700	0.700	Usui	2011PASJ...63.1117U	NEATM
9.68	1.940	1.940	Ali-Lagoa	2018A&A...612A..85A	NEATM
10.04	1.770	1.770	Masiero	2012ApJ...759L...8M	NEATM
10.13	3.470	3.470	Masiero	2021PSJ.....2..162M	NEATM
10.64	3.630	3.630	Masiero	2021PSJ.....2..162M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.030	0.0180	0.0460	Masiero	2021PSJ.....2..162M	NEATM
0.033	0.0150	0.0260	Masiero	2021PSJ.....2..162M	NEATM
0.035	0.0250	0.0250	Masiero	2020PSJ.....1....5M	NEATM
0.040	0.0440	0.0440	Masiero	2020PSJ.....1....5M	NEATM
0.041	0.0286	0.0286	Masiero	2017AJ....154..168M	NEATM
0.043	0.0170	0.0170	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.060	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.073	0.0095	0.0095	Masiero	2011ApJ...741...68M	NEATM
0.391	0.2990	0.2990	Masiero	2012ApJ...759L...8M	NEATM

G data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.15			MPC-2022-01-18	MPC-2022-01-18	Phot

H data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
14.32			MPC-2022-01-18	MPC-2022-01-18	Phot