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| Orbit Diagram
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| Note:
Make sure you have Java enabled on your browser to see the applet.
This applet is provided as a 3D orbit visualization tool.
The applet was implemented using 2-body methods,
and hence should not be used for determining accurate long-term trajectories
(over several years or decades) or planetary encounter circumstances.
For accurate long-term ephemerides, please instead use our Horizons system. |
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Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.
Orbit Viewer applet originally written and kindly provided by
Osamu Ajiki (AstroArts),
and further modified by
Ron Baalke (JPL).
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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO256881 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | 0.0687296 | n/a | |
| a | 2.2260655 | n/a | AU |
| q | 2.0730689 | n/a | AU |
| i | 4.13804 | n/a | deg |
| node | 228.83970 | n/a | deg |
| peri | 233.44142 | n/a | deg |
| M | 348.70213 | n/a | deg |
| tp | 2456438.5714490
(2013-May-26.07144900) | n/a | JED |
| period | 1213.1243884
3.32 | n/a
n/a | d
yr |
| n | 0.29675440 | n/a | deg/d |
| Q | 2.3790621 | n/a | AU |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.8 |
mag |
n/a |
PDS3 (MPC 17265) |
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| rotation period |
rot_per |
25.885 |
h |
n/a |
Asteroid Lightcurve DataBase (Rev. 2013-May-01) |
Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Warner, B.D.; et al. (2007) CBET 824.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J. (2011) http://minorplanet.haoeydental.com.au] |
| SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
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| 2478 Tokai (1981 JC) Discovered 1981-May-04 by Furuta, T. at Tokai |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
| 1981 JC = 1931 HH = 1932 SE = 1934 ED = 1939 VH = 1951 JP = 1955 OE = 1955 QV = 1957 BD = 1972 RS = 1978 NU2 = 1979 XR = 1981 JT |
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