1998 BH21
1998BH21, 2005 YD117, 2005YD117, J98B21H, K05YB7D, S5245
All data for this body: [vot]
MPC data
| Name (number) |
1998 BH21 (285245) |
| a |
2.51708 |
| e |
0.16130 |
| i / sin(i) |
8.6095 /
0.14970
|
| q |
2.11107
|
| Q |
2.92309
|
| ω |
107.1898 |
| Node |
300.7613 |
| m |
353.0800 |
| n |
0.2468 |
| Epoch |
2460800.5 |
| nobs |
200 |
| nopp |
14 |
| Years observed |
1994-2023 |
| rms |
0.83 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.520 |
|
| ep |
0.123 |
|
| sin(ip) |
0.167 |
|
| G |
0.150 |
|
| H |
17.710 |
|
| Mass |
|
|
| D |
2.14 |
0.496 |
| pV |
0.029 |
0.0056 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5196 |
0.1229 |
0.1669 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.14 |
0.496 |
0.496 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.029 |
0.0056 |
0.0056 |
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 |
| 17.71 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |