Hardy

02866, 1961 TA, 1961TA, 1973 AR3, 1973AR3, 1981 RR2, 1981RR2, J61T00A, J73A03R, J81R02R

All data for this body: [vot]

MPC data
Name (number) Hardy (2866)
a 2.91150
e 0.20394
i / sin(i) 8.2213 / 0.14300
q 2.31773
Q 3.50526
ω 25.1933
Node 316.9779
m 299.4385
n 0.1984
Epoch 2460800.5
nobs 5698
nopp 34
Years observed 1951-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.911
ep 0.173
sin(ip) 0.155
G 0.150
H 11.970
Mass
D 12.42 0.320
pV 0.186 0.0284
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 5.808
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
81 Terpsichore 0 Terpsichore Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9111 0.1728 0.1550 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.42 0.468 0.468 Masiero 2011ApJ...741...68M NEATM
11.55 1.290 1.290 Masiero 2012ApJ...759L...8M NEATM
13.33 0.490 0.490 Usui 2011PASJ...63.1117U NEATM
15.43 1.540 1.540 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.161 0.0320 0.0320 Ali-Lagoa 2018A&A...612A..85A NEATM
0.273 0.1420 0.1420 Masiero 2012ApJ...759L...8M NEATM
0.283 0.0689 0.0689 Masiero 2011ApJ...741...68M 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
11.97 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
D 0.968 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT