1999 WA1

1999WA1, 1994 YA, 1994YA, 38573, J94Y00A, J99W01A

All data for this body: [vot]

MPC data
Name (number) 1999 WA1 (38573)
a 3.02291
e 0.08343
i / sin(i) 15.4607 / 0.26658
q 2.77070
Q 3.27512
ω 327.0306
Node 88.1875
m 299.4465
n 0.1875
Epoch 2460800.5
nobs 3657
nopp 22
Years observed 1994-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.023
ep 0.072
sin(ip) 0.246
G 0.150
H 12.700
Mass
D 14.73 3.407
pV 0.085 0.0432
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 2.316
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0235 0.0720 0.2460 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.64 4.572 4.572 Masiero 2017AJ....154..168M NEATM
16.08 5.110 5.110 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.075 0.0780 0.0780 Masiero 2012ApJ...759L...8M NEATM
0.090 0.0519 0.0519 Masiero 2017AJ....154..168M 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
12.70 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
B 0.386 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Cgx Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT