1998 WC20
1998WC20, 1989 YW8, 1989YW8, 1990 BN3, 1990BN3, 44487, J89Y08W, J90B03N, J98W20C
All data for this body: [vot]
MPC data
| Name (number) |
1998 WC20 (44487) |
| a |
2.76844 |
| e |
0.17590 |
| i / sin(i) |
7.9505 /
0.13832
|
| q |
2.28147
|
| Q |
3.25542
|
| ω |
175.9536 |
| Node |
256.5512 |
| m |
265.1460 |
| n |
0.2140 |
| Epoch |
2460800.5 |
| nobs |
1998 |
| nopp |
24 |
| Years observed |
1953-2025 |
| rms |
0.73 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.768 |
|
| ep |
0.169 |
|
| sin(ip) |
0.151 |
|
| G |
0.150 |
|
| H |
14.210 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
Kl |
| Spectral Class Score |
1.000 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7679 |
0.1693 |
0.1513 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2023-12-94 |
MPC-2023-12-94 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 14.21 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| Kl |
Kl |
None |
None |
Movis |
NIR |
Popescu |
2018A&A...617A..12P |
PHOT |