1997 AA2

1997AA2, 18544, 1984 DD2, 1984DD2, 1988 BB1, 1988BB1, 1993 EC, 1993EC, J84D02D, J88B01B, J93E00C, J97A02A

All data for this body: [vot]

MPC data
Name (number) 1997 AA2 (18544)
a 2.68181
e 0.14421
i / sin(i) 2.8190 / 0.04918
q 2.29505
Q 3.06856
ω 134.3834
Node 28.2632
m 123.8589
n 0.2244
Epoch 2460800.5
nobs 3859
nopp 26
Years observed 1984-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.683
ep 0.181
sin(ip) 0.044
G 0.150
H 13.600
Mass
D 6.79 0.039
pV 0.167 0.0148
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 5.988
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6829 0.1811 0.0445 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.70 0.090 0.090 Masiero 2014ApJ...791..121M NEATM
6.81 0.043 0.043 Masiero 2011ApJ...741...68M NEATM
8.53 2.310 2.310 Nugent 2016AJ....152...63N NEATM
8.67 2.460 2.460 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.090 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.100 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.182 0.0198 0.0198 Masiero 2011ApJ...741...68M NEATM
0.190 0.0300 0.0300 Masiero 2014ApJ...791..121M 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
13.60 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
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.998 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT