1998 SW9
1998SW9, 40200, J98S09W
All data for this body: [vot]
MPC data
| Name (number) |
1998 SW9 (40200) |
| a |
3.18351 |
| e |
0.20745 |
| i / sin(i) |
1.4123 /
0.02465
|
| q |
2.52310
|
| Q |
3.84393
|
| ω |
202.6595 |
| Node |
125.9435 |
| m |
279.8663 |
| n |
0.1735 |
| Epoch |
2460800.5 |
| nobs |
1769 |
| nopp |
23 |
| Years observed |
1992-2025 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.196 |
|
| ep |
0.175 |
|
| sin(ip) |
0.011 |
|
| G |
0.150 |
|
| H |
14.190 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
26.940 |
| Period quality |
2 |
| Spectral Class |
B |
| Spectral Class Score |
1.620 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1964 |
0.1750 |
0.0111 |
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 |
| 14.19 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 26.941 |
2 |
Sidereal |
Durech |
2023A&A...675A..24D |
Model |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| B |
|
0.270 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |