1981 ET32

1981ET32, 1998 QW61, 1998QW61, 96171, J81E32T, J98Q61W

All data for this body: [vot]

MPC data
Name (number) 1981 ET32 (96171)
a 2.96788
e 0.09465
i / sin(i) 9.6255 / 0.16721
q 2.68698
Q 3.24877
ω 55.3030
Node 277.1607
m 90.0701
n 0.1928
Epoch 2460800.5
nobs 1354
nopp 21
Years observed 1981-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.964
ep 0.072
sin(ip) 0.187
G 0.150
H 14.900
Mass
D 4.29 0.713
pV 0.139 0.0358
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 6.019
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos -0.5200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9644 0.0723 0.1871 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.29 0.713 0.713 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.139 0.0358 0.0358 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
14.90 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
S 0.702 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
D X 0.3964 0.3750 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.42 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.5298 0.3750 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT