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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2147682633911736 | 3.5881e-08 | |
| a | 2.807653850264479 | 8.4857e-09 | au |
| q | 2.204658908639634 | 9.9859e-08 | au |
| i | 4.739931531889192 | 3.8441e-06 | deg |
| node | 160.9543579366861 | 3.7412e-05 | deg |
| peri | 191.166898099497 | 3.8015e-05 | deg |
| M | 144.67034769823 | 7.1102e-06 | deg |
| tp | 2458309.956889655977
(2018-Jul-10.45688966) | 3.3264e-05 | TDB |
| period | 1718.358486580797
4.70 | 7.7902e-06
2.133e-08 | d
yr |
| n | .209502267897737 | 9.4979e-10 | deg/d |
| Q | 3.410648791889323 | 1.0308e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.2 |
|
n/a |
MPO337259 |
|
| diameter |
diameter |
24.813 |
km |
0.090 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| geometric albedo |
albedo |
0.038 |
|
0.003 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 1668 Hanna (1933 OK) Discovered 1933-Jul-24 by Reinmuth, K. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| 1933 OK = 1938 SY = 1966 QM |
|
|
