1998 JJ4
1998JJ4, 1987 SA12, 1987SA12, 44168, J87S12A, J98J04J
All data for this body: [vot]
MPC data
| Name (number) |
1998 JJ4 (44168) |
| a |
2.43394 |
| e |
0.32666 |
| i / sin(i) |
9.8550 /
0.17116
|
| q |
1.63887
|
| Q |
3.22902
|
| ω |
117.1497 |
| Node |
222.9832 |
| m |
174.5516 |
| n |
0.2596 |
| Epoch |
2460200.5 |
| nobs |
1145 |
| nopp |
20 |
| Years observed |
1987-2023 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
|
|
| ep |
|
|
| sin(ip) |
|
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.270 |
|
| Mass |
|
|
| D |
2.60 |
0.400 |
| pV |
0.230 |
0.0700 |
| Rotational Period |
|
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.60 |
0.400 |
0.400 |
Ali-Lagoa |
2017A&A...603A..55A |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.230 |
0.0700 |
0.0700 |
Ali-Lagoa |
2017A&A...603A..55A |
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 |
| 15.27 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |