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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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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004281429502413074 3.527e-08  
a 2.881567350550438 1.5952e-08 au
q 2.869230123082601 9.9664e-08 au
i 12.16570074176509 4.654e-06 deg
node 242.4010417450115 1.9745e-05 deg
peri 216.5632489024784 0.00058845 deg
M 125.3117935326028 0.00058745 deg
tp 2458378.584996541290
(2018-Sep-17.08499654)
0.0029154 TDB
period 1786.658661037243
4.89
1.4836e-05
4.062e-08
d
yr
n .2014934401577313 1.6732e-09 deg/d
Q 2.893904578018275 1.6021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      20206 days (55.32 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:02:16  

Additional Information
 Earth MOID = 1.87872 au 
 Jupiter MOID = 2.13828 au 
 T_jup = 3.261 
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Orbital Elements at Epoch 2457218.5 (2015-Jul-15.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005487774946707527 3.459e-08  
q 2.865812853741749 9.7816e-08 au
tp 2456620.399033509574
(2013-Nov-23.89903351)
0.0023007 TDB
node 242.4198137174169 1.9744e-05 deg
peri 222.4338591222115 0.00046473 deg
i 12.16580900880181 4.6542e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      20206 days (55.32 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:02:16  

Additional Information
 Jupiter MOID = 2.13828 au 
 T_jup = 3.261 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.196459329736807E-15 -3.340264421765588E-15 -1.022405721033541E-11 4.832480546644115E-15 -2.062583736530995E-12 -9.843902686790001E-16
q -3.340264421765588E-15 9.568057317319709E-15 2.939904151991361E-11 -1.48727165302437E-14 5.94829308957885E-12 3.846605332943023E-15
tp -1.022405721033541E-11 2.939904151991361E-11 5.293264360136419E-6 -2.370631373029459E-10 1.068261149404847E-6 7.179327807984765E-12
node 4.832480546644115E-15 -1.48727165302437E-14 -2.370631373029459E-10 3.898308135525132E-10 -4.288153650314854E-10 -2.289540857901384E-11
peri -2.062583736530995E-12 5.94829308957885E-12 1.068261149404847E-6 -4.288153650314854E-10 2.159741108171476E-7 2.398717564518119E-11
i -9.843902686790001E-16 3.846605332943023E-15 7.179327807984765E-12 -2.289540857901384E-11 2.398717564518119E-11 2.166151445297355E-11

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] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.054   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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

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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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