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3978 Klepesta (1983 VP1)
Classification: Main-belt Asteroid          SPK-ID: 2003978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

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).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004281428936919065 3.4058e-08  
a 2.881567350605682 1.5501e-08 au
q 2.869230124767118 9.4992e-08 au
i 12.16570032717867 4.6396e-06 deg
node 242.4010291723806 1.7597e-05 deg
peri 216.5632607725692 0.00056539 deg
M 125.3117938916118 0.00056498 deg
tp 2458378.584994741665
0.0028035 TDB
period 1786.658661088623
n .2014934401519368 1.6258e-09 deg/d
Q 2.893904576444247 1.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2566  
   data-arc span      20256 days (55.46 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:04:12  

Additional Information
 Earth MOID = 1.87872 au 
 Jupiter MOID = 2.13828 au 
 T_jup = 3.261 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9   n/a MPO473820  
diameter diameter 29.223 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.054   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

3978 Klepesta (1983 VP1)          Discovered 1983-Nov-07 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2181-Dec-19 01:34 00:21 Iris 0.0487551190421603 0.0487520308489458 0.0487582136156646 3.0362261873955 3.03622614856091 2518006.565114067 21.2582314211726 921.460211229258 39.1384994263482 -80.68767015052 183729.603737628 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 16:04:24 2020-Jun-23 16:04

Alternate Designations
 1983 VP1 = 1965 AN = 1976 JF7 = 1978 TX5 = 1985 BE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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