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3779 Kieffer (1985 JV1)
Classification: Main-belt Asteroid          SPK-ID: 2003779
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1110230991960116 1.7142e-08  
a 2.63729459793343 1.1588e-08 au
q 2.344493978177962 4.6627e-08 au
i 13.87823065659791 6.2347e-07 deg
node 59.14843090430542 1.4871e-06 deg
peri 72.52078645137095 8.0838e-06 deg
M 197.1704708384075 1.0552e-05 deg
tp 2459908.066171015221
(2022-Nov-24.56617102)
4.8431e-05 TDB
period 1564.358890411646
4.28
1.0311e-05
2.823e-08
d
yr
n .2301262211673623 1.5168e-09 deg/d
Q 2.930095217688899 1.2875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2378  
   data-arc span      29233 days (80.04 yr)  
   first obs. used      1940-11-29  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39664  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:32:41  

Additional Information
 Earth MOID = 1.40209 au 
 Jupiter MOID = 2.25213 au 
 T_jup = 3.347 
[ 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 11.63   n/a MPCxxxxx  
diameter diameter 14.660 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.848 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Tollefson, E.R.; Gross, J. (2002) Minor Planet Bull. 29, 72.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.252   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3779 Kieffer (1985 JV1)          Discovered 1985-May-13 by Shoemaker, C. and Shoemaker, E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1985 JV1 = 1940 WD = 1959 GK = 1978 TH = 1987 WW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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