1998 WA21
1998WA21, 2002 PP42, 2002PP42, D4485, J98W21A, K02P42P
All data for this body: [vot]
MPC data
| Name (number) |
1998 WA21 (134485) |
| a |
2.55857 |
| e |
0.29218 |
| i / sin(i) |
6.2224 /
0.10839
|
| q |
1.81101
|
| Q |
3.30614
|
| ω |
334.4171 |
| Node |
40.1659 |
| m |
187.5830 |
| n |
0.2408 |
| Epoch |
2460800.5 |
| nobs |
584 |
| nopp |
17 |
| Years observed |
1998-2025 |
| rms |
0.82 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.561 |
|
| ep |
0.198 |
|
| sin(ip) |
0.091 |
|
| G |
0.150 |
|
| H |
16.370 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
1.000 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5609 |
0.1981 |
0.0910 |
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 |
| 16.37 |
|
|
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 |
| V |
S |
None |
None |
Movis |
NIR |
Popescu |
2018A&A...617A..12P |
PHOT |