Lapko

03215, 1956 VH, 1956VH, 1980 BQ, 1980BQ, 1981 GR1, 1981GR1, 1981 JL2, 1981JL2, J56V00H, J80B00Q, J81G01R, J81J02L

All data for this body: [vot]

MPC data

Name (number)	Lapko (3215)
a	3.13150
e	0.09216
i / sin(i)	7.2108 / 0.12552
q	2.84290
Q	3.42010
ω	44.3203
Node	66.4757
m	88.8337
n	0.1779
Epoch	2460800.5

n_obs	4261
n_opp	30
Years observed	1980-2025
rms	0.66

Best values

	Value	Standard error
Parent

a_p	3.127
e_p	0.112
sin(i_p)	0.109
G	0.150
H	12.390
Mass
D	19.88	0.309
pV	0.050	0.0104

	Value
Rotational Period
Period quality	None
Spectral Class	B
Spectral Class Score	5.358

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
52	Europa	-1	Europa	-1.0000	Nesvorny	2024ApJS..274...25N	HCM-2024

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
3.1266	0.1115	0.1094	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
18.26	3.650	3.650	Ali-Lagoa	2018A&A...612A..85A	NEATM
19.52	0.341	0.341	Masiero	2011ApJ...741...68M	NEATM
21.59	0.760	0.760	Usui	2011PASJ...63.1117U	NEATM
23.67	4.730	4.730	Ali-Lagoa	2018A&A...612A..85A	NEATM
29.05	9.610	9.610	Masiero	2012ApJ...759L...8M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.028	0.0430	0.0430	Masiero	2012ApJ...759L...8M	NEATM
0.038	0.0150	0.0150	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.064	0.0260	0.0260	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.067	0.0190	0.0190	Masiero	2011ApJ...741...68M	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
12.39			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
B		0.893		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
Cgx	C	None	None	Movis	NIR	Popescu	2018A&A...617A..12P	PHOT