1991 VB5

1991VB5, 12308, 1998 MK8, 1998MK8, J91V05B, J98M08K

All data for this body: [vot]

MPC data

Name (number)	1991 VB5 (12308)
a	2.54667
e	0.12191
i / sin(i)	14.7843 / 0.25518
q	2.23619
Q	2.85714
ω	187.5355
Node	194.7075
m	109.4772
n	0.2425
Epoch	2460800.5

n_obs	6524
n_opp	23
Years observed	1991-2025
rms	0.55

Best values

	Value	Standard error
Parent	Maria (170)

a_p	2.547
e_p	0.094
sin(i_p)	0.257
G	0.150
H	13.720
Mass
D	6.11	0.226
pV	0.226	0.0176

	Value
Rotational Period
Period quality	None
Spectral Class	S
Spectral Class Score	19.589

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
170	Maria	0	Maria		Novakovic	2019EPSC...13.1671N	HCM
170	Maria	506	Maria	-0.0700	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.5475	0.0944	0.2565	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
5.62	1.010	1.010	Masiero	2012ApJ...759L...8M	NEATM
6.13	0.232	0.232	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.225	0.0178	0.0178	Masiero	2011ApJ...741...68M	NEATM
0.267	0.1080	0.1080	Masiero	2012ApJ...759L...8M	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
13.72			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
Ad	Ad	None	None	Movis	NIR	Popescu	2018A&A...617A..12P	PHOT
L	S	0.7136	0.6840	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S		0.83		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
S	S	0.9944	0.6840	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9958	0.6840	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9980	0.6840	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT