1998 SY21
1998SY21, 33331, J98S21Y
All data for this body: [vot]
MPC data
| Name (number) |
1998 SY21 (33331) |
| a |
2.34543 |
| e |
0.22396 |
| i / sin(i) |
6.0281 /
0.10502
|
| q |
1.82015
|
| Q |
2.87071
|
| ω |
139.8243 |
| Node |
185.1430 |
| m |
175.0528 |
| n |
0.2744 |
| Epoch |
2460800.5 |
| nobs |
1621 |
| nopp |
22 |
| Years observed |
1991-2025 |
| rms |
0.82 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.346 |
|
| ep |
0.180 |
|
| sin(ip) |
0.109 |
|
| G |
0.150 |
|
| H |
15.600 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
3.600 |
| Period quality |
2+ |
| Spectral Class |
S |
| Spectral Class Score |
18.122 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3462 |
0.1803 |
0.1091 |
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 |
| 15.60 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |