1999 XL21
1999XL21, 45049, J99X21L
All data for this body: [vot]
MPC data
| Name (number) |
1999 XL21 (45049) |
| a |
2.28682 |
| e |
0.13483 |
| i / sin(i) |
6.6181 /
0.11525
|
| q |
1.97850
|
| Q |
2.59514
|
| ω |
157.0010 |
| Node |
180.7296 |
| m |
19.2110 |
| n |
0.2850 |
| Epoch |
2460200.5 |
| nobs |
1337 |
| nopp |
20 |
| Years observed |
1992-2023 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
Vesta (4) |
|
| |
|
|
| ap |
2.287 |
|
| ep |
0.086 |
|
| sin(ip) |
0.120 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.930 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 4 |
Vesta |
401 |
Vesta |
|
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2866 |
0.0858 |
0.1199 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
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 |
| 15.93 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |