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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .003158385671937845 3.1147e-08  
a 2.884701880105182 1.4815e-08 au
q 2.875590879019246 8.7702e-08 au
i 12.15612551297707 4.1881e-06 deg
node 242.36361404401 1.6353e-05 deg
peri 218.7341169595923 0.00070205 deg
M 202.9178073061979 0.00070255 deg
tp 2460177.361997548877
(2023-Aug-20.86199755)
0.0034939 TDB
period 1789.574707971895
4.90
1.3787e-05
3.775e-08
d
yr
n .2011651139213874 1.5497e-09 deg/d
Q 2.893812881191119 1.4862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2871  
   data-arc span      20628 days (56.48 yr)  
   first obs. used      1965-01-01  
   last obs. used      2021-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:52:27  

Additional Information
 Earth MOID = 1.87925 au 
 Jupiter MOID = 2.13073 au 
 T_jup = 3.260 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.90   n/a MPO614063  
diameter diameter 29.223 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.3654 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

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