1998 YD28

1998YD28, 1981 UB13, 1981UB13, 49456, J81U13B, J98Y28D

All data for this body: [vot]

MPC data

Name (number)	1998 YD28 (49456)
a	2.56558
e	0.19840
i / sin(i)	10.4247 / 0.18094
q	2.05657
Q	3.07459
ω	104.9068
Node	290.9026
m	62.0470
n	0.2398
Epoch	2460200.5

n_obs	2147
n_opp	20
Years observed	1997-2023
rms	0.60

Best values

	Value	Standard error
Parent

a_p	2.566
e_p	0.164
sin(i_p)	0.201

	Value	Standard error
G	0.150
H	14.350
Mass
D	3.98	0.810
pV	0.255	0.1110
Rotational Period

Proper elements data

a_p	e_p	sin(i_p)	Author	Reference	Method
2.5658	0.1644	0.2007	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Oct-2022

Diameter data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
3.98	0.810	0.810	Masiero	2012ApJ...759L...8M	NEATM

Albedo data

Value	Uncertainty up	Uncertainty down	Author	Reference	Method
0.255	0.1110	0.1110	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
14.35			MPC-2023-12-04	MPC-2023-12-04	Phot