Johnston
12378, 1990 US6, 1990US6, 1994 PK1, 1994PK1, 1998 JT2, 1998JT2, J90U06S, J94P01K, J98J02T
All data for this body: [vot]
MPC data
| Name (number) |
Johnston (12378) |
| a |
2.70504 |
| e |
0.33212 |
| i / sin(i) |
16.8151 /
0.28929
|
| q |
1.80664
|
| Q |
3.60344
|
| ω |
264.4998 |
| Node |
69.5174 |
| m |
314.8241 |
| n |
0.2215 |
| Epoch |
2460800.5 |
| nobs |
1893 |
| nopp |
23 |
| Years observed |
1990-2025 |
| rms |
0.73 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.987 |
|
| ep |
0.360 |
|
| sin(ip) |
0.330 |
|
| G |
0.150 |
|
| H |
14.240 |
|
| 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 |
| 2.9875 |
0.3596 |
0.3300 |
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 |
| 14.24 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |