1989EP2
18338, 1998DJ3, 1999LH20, 2000QQ126, J89E02P, J98D03J, J99L20H, K00QC6Q
All data for this body: [vot]
MPC data
| Name (number) |
1989EP2 (18338) |
| Packed designation |
18338 |
| a |
2.77828 |
| e |
0.09795 |
| i / sin(i) |
7.8957 /
0.13737
|
| q |
2.50615
|
| Q |
3.05040
|
| ω |
263.4562 |
| Node |
281.6672 |
| m |
16.9947 |
| n |
0.2128 |
| Epoch |
2459600.5 |
| nobs |
2041 |
| nopp |
20 |
| Years observed |
1989-2021 |
| rms |
0.49 |
Best values
|
Value |
Standard error |
| Parent |
Gefion (1272) |
|
| |
|
|
| ap |
2.779 |
|
| ep |
0.134 |
|
| sin(ip) |
0.160 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
13.770 |
|
| Mass |
|
|
| D |
5.01 |
0.690 |
| pV |
0.280 |
0.0890 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 1272 |
Gefion |
516 |
Gefion |
-0.1200 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7792 |
0.1343 |
0.1597 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Jan-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 5.01 |
0.690 |
0.690 |
Masiero |
2012ApJ...759L...8M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.280 |
0.0890 |
0.0890 |
Masiero |
2012ApJ...759L...8M |
NEATM |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 13.77 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |