1989 SA

1989SA, 14374, 1981 WN8, 1981WN8, J81W08N, J89S00A

All data for this body: [vot]

MPC data

Name (number)	1989 SA (14374)
a	2.58784
e	0.18985
i / sin(i)	13.9389 / 0.24089
q	2.09654
Q	3.07915
ω	299.9263
Node	77.7961
m	187.9331
n	0.2368
Epoch	2460800.5

n_obs	4854
n_opp	22
Years observed	1976-2025
rms	0.61

Best values

	Value	Standard error
Parent	Eunomia (15)

a_p	2.588
e_p	0.148
sin(i_p)	0.227
G	0.150
H	13.520
Mass
D	5.66	0.031
pV	0.320	0.0388

	Value
Rotational Period	2.929
Period quality	2
Spectral Class	S
Spectral Class Score	3.920

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	-0.6700	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.5883	0.1482	0.2265	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
4.53	1.080	1.080	Nugent	2016AJ....152...63N	NEATM
4.75	0.860	0.860	Masiero	2012ApJ...759L...8M	NEATM
5.67	0.031	0.031	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.290	0.1700	0.1700	Nugent	2016AJ....152...63N	NEATM
0.317	0.0409	0.0409	Masiero	2011ApJ...741...68M	NEATM
0.410	0.1800	0.1800	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
13.52			MPC-2023-12-04	MPC-2023-12-04	Phot

Periods

Value	Quality	Side real or Synodic	Author	Reference	Method
2.92854	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve

Spectral Class Data

Class 1	Class 2	Probability of Class 1	Probability of Class 2	Taxonomy	Wavelength	Author	Reference	Method
K		0.126		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
S				DeMeo-Carry	VIS	DeMeo	2013Icar..226..723D	PHOT
S		0.96		Bus	VIS	Carvano	2010A&A...510A..43C	PHOT