1999 AR4
1999AR4, 1989 YS2, 1989YS2, 27161, J89Y02S, J99A04R
All data for this body: [vot]
MPC data
| Name (number) |
1999 AR4 (27161) |
| a |
2.71176 |
| e |
0.20119 |
| i / sin(i) |
9.3268 /
0.16207
|
| q |
2.16619
|
| Q |
3.25733
|
| ω |
330.9620 |
| Node |
109.3806 |
| m |
351.4730 |
| n |
0.2207 |
| Epoch |
2460800.5 |
| nobs |
2142 |
| nopp |
21 |
| Years observed |
1989-2025 |
| rms |
0.75 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.713 |
|
| ep |
0.193 |
|
| sin(ip) |
0.140 |
|
| G |
0.150 |
|
| H |
14.520 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7131 |
0.1928 |
0.1398 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
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 |
| 14.52 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |