1999 JC4
1999JC4, 11217, 1978 WZ20, 1978WZ20, 1989 UM2, 1989UM2, J78W20Z, J89U02M, J99J04C
All data for this body: [vot]
MPC data
| Name (number) |
1999 JC4 (11217) |
| a |
1.94432 |
| e |
0.06940 |
| i / sin(i) |
19.2921 /
0.33038
|
| q |
1.80938
|
| Q |
2.07926
|
| ω |
69.8836 |
| Node |
224.6058 |
| m |
142.6502 |
| n |
0.3635 |
| Epoch |
2460800.5 |
| nobs |
2609 |
| nopp |
20 |
| Years observed |
1978-2025 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
Hungaria (434) |
|
| |
|
|
| ap |
1.944 |
|
| ep |
0.081 |
|
| sin(ip) |
0.348 |
|
| G |
0.150 |
|
| H |
15.190 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
4.821 |
| Period quality |
3 |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 1.9440 |
0.0805 |
0.3477 |
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 |
| 15.19 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 4.8219 |
3 |
Synodic |
Warner |
2014MPBu...41...54W |
Lightcurve |