1999 VS23

1999VS23, 1979 YF4, 1979YF4, 2001 FY71, 2001FY71, 70749, J79Y04F, J99V23S, K01F71Y

All data for this body: [vot]

MPC data

Name (number)	1999 VS23 (70749)
a	2.53295
e	0.18421
i / sin(i)	4.2143 / 0.07349
q	2.06636
Q	2.99953
ω	316.3306
Node	121.8544
m	88.4608
n	0.2445
Epoch	2460800.5

n_obs	2079
n_opp	21
Years observed	1955-2025
rms	0.74

Best values

	Value	Standard error
Parent

a_p	2.531
e_p	0.180
sin(i_p)	0.057
G	0.150
H	15.040
Mass
D	5.44	0.331
pV	0.085	0.0134

	Value
Rotational Period
Period quality	None
Spectral Class	X
Spectral Class Score	12.933

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.5314	0.1804	0.0572	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
4.86	1.640	1.640	Masiero	2021PSJ.....2..162M	NEATM
4.87	1.645	1.645	Masiero	2017AJ....154..168M	NEATM
5.49	0.345	0.345	Masiero	2011ApJ...741...68M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.082	0.0400	0.0800	Masiero	2021PSJ.....2..162M	NEATM
0.085	0.0141	0.0141	Masiero	2011ApJ...741...68M	NEATM
0.104	0.0604	0.0604	Masiero	2017AJ....154..168M	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
15.04			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
B		0.668		Bus-Demeo	VIS	Sergeyev	2022A&A...658A.109S	PHOT
V	X	0.0223	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.2577	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.3131	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.4021	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.5851	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.5975	0.4890	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT