1999 XB21
1999XB21, 1993 BV1, 1993BV1, 45048, J93B01V, J99X21B
All data for this body: [vot]
MPC data
| Name (number) |
1999 XB21 (45048) |
| a |
2.37765 |
| e |
0.09081 |
| i / sin(i) |
4.9559 /
0.08639
|
| q |
2.16173
|
| Q |
2.59357
|
| ω |
359.3512 |
| Node |
71.7457 |
| m |
317.0810 |
| n |
0.2688 |
| Epoch |
2460800.5 |
| nobs |
1510 |
| nopp |
20 |
| Years observed |
1993-2024 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.378 |
|
| ep |
0.096 |
|
| sin(ip) |
0.072 |
|
| G |
0.150 |
|
| H |
15.630 |
|
| Mass |
|
|
| D |
2.52 |
0.698 |
| pV |
0.176 |
0.0813 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3780 |
0.0955 |
0.0718 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.52 |
0.698 |
0.698 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.176 |
0.0813 |
0.0813 |
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 |