1992 UU2

1992UU2, 07774, 1975 UN, 1975UN, J75U00N, J92U02U

All data for this body: [vot]

MPC data

Name (number)	1992 UU2 (7774)
a	2.26448
e	0.18502
i / sin(i)	6.3043 / 0.10981
q	1.84551
Q	2.68344
ω	324.8275
Node	73.7118
m	186.7019
n	0.2892
Epoch	2460800.5

n_obs	3775
n_opp	25
Years observed	1975-2025
rms	0.68

Best values

	Value	Standard error
Parent

a_p	2.264
e_p	0.164
sin(i_p)	0.091
G	0.150
H	13.730
Mass
D	4.32	0.073
pV	0.420	0.0488

	Value
Rotational Period	3.868
Period quality	3
Spectral Class	S
Spectral Class Score	9.734

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.2643	0.1638	0.0907	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
4.14	0.140	0.140	Masiero	2014ApJ...791..121M	NEATM
4.38	0.086	0.086	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.402	0.0615	0.0615	Masiero	2011ApJ...741...68M	NEATM
0.450	0.0800	0.0800	Masiero	2014ApJ...791..121M	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
13.73			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
3.867221	2	Sidereal	Durech	2020A&A...643A..59D	Model
3.86723	2	Sidereal	Durech	2023A&A...675A..24D	Model
3.86752	3	Synodic	Fornas	LCDB	Lightcurve
3.868	3-	Synodic	Foylan	2017MPBu...44...92F	Lightcurve
3.869	3-	Synodic	Aznar	2017MPBu...44..139A	Lightcurve
3.87	2	Synodic	Krotz	2010MPBu...37...99K	Lightcurve

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
L		0.921		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
S		0.92		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT
S	S	0.9824	0.9824	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT