1999 SB21
1999SB21, 1998 FW111, 1998FW111, 96870, J98FB1W, J99S21B
All data for this body: [vot]
MPC data
| Name (number) |
1999 SB21 (96870) |
| a |
2.44315 |
| e |
0.11326 |
| i / sin(i) |
11.3497 /
0.19680
|
| q |
2.16644
|
| Q |
2.71985
|
| ω |
225.3082 |
| Node |
350.6924 |
| m |
23.5819 |
| n |
0.2581 |
| Epoch |
2460800.5 |
| nobs |
848 |
| nopp |
19 |
| Years observed |
1998-2025 |
| rms |
0.81 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.442 |
|
| ep |
0.147 |
|
| sin(ip) |
0.200 |
|
| G |
0.150 |
|
| H |
15.630 |
|
| Mass |
|
|
| D |
2.33 |
0.499 |
| pV |
0.248 |
0.1761 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.874 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4422 |
0.1473 |
0.2002 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.33 |
0.499 |
0.499 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.248 |
0.1761 |
0.1761 |
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 |
| 15.63 |
|
|
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 |
|
0.979 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |