1999 JH121
1999JH121, G4809, J99JC1H
All data for this body: [vot]
MPC data
| Name (number) |
1999 JH121 (164809) |
| a |
2.41685 |
| e |
0.16406 |
| i / sin(i) |
6.1414 /
0.10698
|
| q |
2.02034
|
| Q |
2.81336
|
| ω |
74.1869 |
| Node |
204.5598 |
| m |
299.3036 |
| n |
0.2623 |
| Epoch |
2460800.5 |
| nobs |
910 |
| nopp |
18 |
| Years observed |
1996-2025 |
| rms |
0.82 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.418 |
|
| ep |
0.155 |
|
| sin(ip) |
0.116 |
|
| G |
0.150 |
|
| H |
16.340 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
8.453 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4184 |
0.1553 |
0.1155 |
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 |
| 16.34 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| V |
V |
0.4301 |
0.9520 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| V |
V |
0.9788 |
0.9520 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |