1995 UT4

1995UT4, 12420, 1991 UF4, 1991UF4, J91U04F, J95U04T

All data for this body: [vot]

MPC data

Name (number)	1995 UT4 (12420)
a	2.55483
e	0.14087
i / sin(i)	14.2217 / 0.24568
q	2.19494
Q	2.91472
ω	51.5290
Node	52.1617
m	41.1518
n	0.2414
Epoch	2460800.5

n_obs	3426
n_opp	22
Years observed	1991-2025
rms	0.65

Best values

	Value	Standard error
Parent	Eunomia (15)

a_p	2.554
e_p	0.163
sin(i_p)	0.236
G	0.150
H	13.680
Mass
D	5.81	0.307
pV	0.209	0.0343

	Value
Rotational Period
Period quality	None
Spectral Class	S
Spectral Class Score	25.072

Family data

Parent	Parent name	Family ID	Family name	C_j	Author	Reference	Method
15	Eunomia	0	Eunomia		Novakovic	2019EPSC...13.1671N	HCM
15	Eunomia	502	Eunomia	-0.9700	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.5544	0.1627	0.2358	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
5.81	0.307	0.307	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.209	0.0343	0.0343	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
13.68			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
L	S	0.5391	0.4530	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
LS		0.44		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
S				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
S		1.000		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S	S	0.5793	0.4530	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.6352	0.4530	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.6432	0.4530	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9876	0.4530	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT