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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004281430702560737 3.3949e-08  
a 2.881567349579229 1.5447e-08 au
q 2.869230118657244 9.4555e-08 au
i 12.16570030288925 4.6378e-06 deg
node 242.4010258961065 1.7156e-05 deg
peri 216.5633225066784 0.00056137 deg
M 125.3117358836123 0.00056109 deg
tp 2458378.585282964230
(2018-Sep-17.08528296)
0.0027841 TDB
period 1786.658660133974
4.89
1.4366e-05
3.933e-08
d
yr
n .2014934402595989 1.6202e-09 deg/d
Q 2.893904580501214 1.5513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2675  
   data-arc span      20337 days (55.68 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:29  

Additional Information
 Earth MOID = 1.87872 au 
 Jupiter MOID = 2.13828 au 
 T_jup = 3.261 
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Orbital Elements at Epoch 2457549.5 (2016-Jun-10.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005270147437308001 3.2821e-08  
q 2.867000387285324 9.1146e-08 au
tp 2458407.750721683110
(2018-Oct-16.25072168)
0.0023098 TDB
node 242.4169268792529 1.7157e-05 deg
peri 222.5146424959408 0.00046578 deg
i 12.16461951265852 4.6376e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2675  
   data-arc span      20337 days (55.68 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:29  

Additional Information
 Jupiter MOID = 2.13828 au 
 T_jup = 3.261 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.077226693578138E-15 -2.952548394137783E-15 -1.737339767145914E-11 2.620756386116538E-15 -3.539347128841163E-12 -7.167166193498316E-16
q -2.952548394137783E-15 8.307533431320016E-15 5.295280127666119E-11 -8.403705821811686E-15 1.075803470619015E-11 2.913686232363316E-15
tp -1.737339767145914E-11 5.295280127666119E-11 5.334960370586362E-6 -1.01324930456494E-10 1.075120315328339E-6 1.567097593330551E-11
node 2.620756386116538E-15 -8.403705821811686E-15 -1.01324930456494E-10 2.943558880703879E-10 -3.080279113373831E-10 -2.532918927861354E-11
peri -3.539347128841163E-12 1.075803470619015E-11 1.075120315328339E-6 -3.080279113373831E-10 2.169535844403182E-7 2.792692293199184E-11
i -7.167166193498316E-16 2.913686232363316E-15 1.567097593330551E-11 -2.532918927861354E-11 2.792692293199184E-11 2.150687505915157E-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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