1999 WR12

1999WR12, 66942, J99W12R

All data for this body: [vot]

MPC data
Name (number) 1999 WR12 (66942)
a 2.74157
e 0.22531
i / sin(i) 1.6374 / 0.02857
q 2.12388
Q 3.35927
ω 210.2582
Node 203.0986
m 207.1545
n 0.2171
Epoch 2460800.5
nobs 861
nopp 21
Years observed 1990-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.740
ep 0.203
sin(ip) 0.038
G 0.150
H 15.710
Mass
D 3.55 0.865
pV 0.097 0.0584
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 0.697
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
177 Irma -1 Irma -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7397 0.2029 0.0377 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.55 0.865 0.865 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.097 0.0584 0.0584 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
15.71 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
V V 0.0561 0.0580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V V 0.0600 0.0580 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT