1999 XN20
1999XN20, 1997 EA4, 1997EA4, 45046, J97E04A, J99X20N
All data for this body: [vot]
MPC data
| Name (number) |
1999 XN20 (45046) |
| a |
2.44572 |
| e |
0.12749 |
| i / sin(i) |
2.8424 /
0.04959
|
| q |
2.13391
|
| Q |
2.75754
|
| ω |
303.2561 |
| Node |
170.4264 |
| m |
26.3682 |
| n |
0.2577 |
| Epoch |
2460200.5 |
| nobs |
1481 |
| nopp |
17 |
| Years observed |
1997-2023 |
| rms |
0.70 |
Best values
|
Value |
Standard error |
| Parent |
Nysa (44) |
|
| |
|
|
| ap |
2.445 |
|
| ep |
0.152 |
|
| sin(ip) |
0.051 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.640 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 44 |
Nysa |
405 |
Nysa-Polana |
0.2000 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4451 |
0.1518 |
0.0509 |
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 |
| 15.64 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |