1989 AR

1989AR, 1998 HW105, 1998HW105, 32784, J89A00R, J98HA5W

All data for this body: [vot]

MPC data
Name (number) 1989 AR (32784)
a 2.59456
e 0.25367
i / sin(i) 7.8294 / 0.13623
q 1.93640
Q 3.25271
ω 356.4632
Node 96.2833
m 252.9125
n 0.2358
Epoch 2460800.5
nobs 2176
nopp 22
Years observed 1988-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.595
ep 0.276
sin(ip) 0.109
G 0.150
H 14.530
Mass
D 4.74 0.047
pV 0.139 0.0265
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 2.384
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5949 0.2763 0.1087 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.06 0.980 0.980 Masiero 2020PSJ.....1....5M NEATM
4.74 0.047 0.047 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.137 0.0273 0.0273 Masiero 2011ApJ...741...68M NEATM
0.158 0.1070 0.1070 Masiero 2020PSJ.....1....5M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X X 0.3974 0.3974 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT