1989 RK1

1989RK1, 2000 EV197, 2000EV197, 43777, J89R01K, K00EJ7V

All data for this body: [vot]

MPC data

Name (number)	1989 RK1 (43777)
a	2.62240
e	0.18395
i / sin(i)	12.2300 / 0.21184
q	2.14002
Q	3.10478
ω	48.7796
Node	334.5261
m	112.4119
n	0.2321
Epoch	2460800.5

n_obs	3082
n_opp	22
Years observed	1989-2025
rms	0.71

Best values

	Value	Standard error
Parent	Eunomia (15)

a_p	2.623
e_p	0.147
sin(i_p)	0.223
G	0.150
H	14.210
Mass
D	3.93	0.220
pV	0.278	0.0709

	Value
Rotational Period
Period quality	None
Spectral Class	S
Spectral Class Score	28.432

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	-0.1700	Nesvorny	doi.org/10.26033/6cg5-pt13	HCM-2020-08-14

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.6226	0.1470	0.2232	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
3.91	0.221	0.221	Masiero	2011ApJ...741...68M	NEATM
5.70	2.530	2.530	Masiero	2012ApJ...759L...8M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.150	0.1460	0.1460	Masiero	2012ApJ...759L...8M	NEATM
0.318	0.0811	0.0811	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
14.21			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
S	S	0.3714	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.6705	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.8702	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9101	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9211	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
S	S	0.9954	0.7830	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT