1999 AJ18

1999AJ18, 1997 WA9, 1997WA9, 59188, J97W09A, J99A18J

All data for this body: [vot]

MPC data
Name (number) 1999 AJ18 (59188)
a 2.33516
e 0.16530
i / sin(i) 2.2935 / 0.04002
q 1.94916
Q 2.72117
ω 344.8495
Node 309.4524
m 335.1297
n 0.2762
Epoch 2460800.5
nobs 1526
nopp 21
Years observed 1993-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.335
ep 0.143
sin(ip) 0.050
G 0.150
H 15.850
Mass
D 2.01 0.545
pV 0.145 0.0630
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -0.6700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3354 0.1433 0.0504 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.01 0.545 0.545 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.145 0.0630 0.0630 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
15.85 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 S None None Movis NIR Popescu 2018A&A...617A..12P PHOT