1999 AS21
1999AS21, 1991 VN6, 1991VN6, 35680, J91V06N, J99A21S
All data for this body: [vot]
MPC data
| Name (number) |
1999 AS21 (35680) |
| a |
2.19753 |
| e |
0.05497 |
| i / sin(i) |
6.5880 /
0.11473
|
| q |
2.07674
|
| Q |
2.31832
|
| ω |
296.3763 |
| Node |
135.1990 |
| m |
81.1407 |
| n |
0.3026 |
| Epoch |
2460800.5 |
| nobs |
2692 |
| nopp |
19 |
| Years observed |
1991-2025 |
| rms |
0.74 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.198 |
|
| ep |
0.107 |
|
| sin(ip) |
0.118 |
|
| G |
0.150 |
|
| H |
15.400 |
|
| Mass |
|
|
| D |
1.94 |
0.531 |
| pV |
0.355 |
0.1901 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
9.536 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.1979 |
0.1072 |
0.1184 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.94 |
0.531 |
0.531 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.355 |
0.1901 |
0.1901 |
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 |
| 15.40 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |