1999 SS18
1999SS18, 38448, J99S18S
All data for this body: [vot]
MPC data
| Name (number) |
1999 SS18 (38448) |
| a |
2.57377 |
| e |
0.07548 |
| i / sin(i) |
14.6638 /
0.25315
|
| q |
2.37951
|
| Q |
2.76803
|
| ω |
115.7374 |
| Node |
156.6871 |
| m |
155.9735 |
| n |
0.2387 |
| Epoch |
2460800.5 |
| nobs |
2449 |
| nopp |
21 |
| Years observed |
1998-2025 |
| rms |
0.75 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.573 |
|
| ep |
0.072 |
|
| sin(ip) |
0.249 |
|
| G |
0.150 |
|
| H |
14.300 |
|
| Mass |
|
|
| D |
4.05 |
0.158 |
| pV |
0.171 |
0.0332 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.388 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5726 |
0.0717 |
0.2494 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.05 |
0.158 |
0.158 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.171 |
0.0332 |
0.0332 |
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 |
| 14.30 |
|
|
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 |
| S |
|
0.898 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |