1998 WW5
1998WW5, 1987 SY4, 1987SY4, 28181, J87S04Y, J98W05W
All data for this body: [vot]
MPC data
| Name (number) |
1998 WW5 (28181) |
| a |
2.33938 |
| e |
0.14127 |
| i / sin(i) |
5.5710 /
0.09708
|
| q |
2.00889
|
| Q |
2.66987
|
| ω |
306.2120 |
| Node |
357.9607 |
| m |
233.7366 |
| n |
0.2755 |
| Epoch |
2460800.5 |
| nobs |
2614 |
| nopp |
21 |
| Years observed |
1987-2025 |
| rms |
0.73 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.340 |
|
| ep |
0.111 |
|
| sin(ip) |
0.098 |
|
| G |
0.150 |
|
| H |
14.850 |
|
| Mass |
|
|
| D |
3.02 |
0.587 |
| pV |
0.280 |
0.0732 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3401 |
0.1110 |
0.0979 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.02 |
0.587 |
0.587 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.280 |
0.0732 |
0.0732 |
Masiero |
2011ApJ...741...68M |
NEATM |
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 |
| 14.85 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |