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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1103899295461537 3.3134e-08  
a 2.638647247026597 1.1664e-08 au
q 2.347367163330179 8.8219e-08 au
i 13.88601951330367 4.691e-06 deg
node 59.22493521764508 1.5147e-05 deg
peri 72.18680345073801 2.6986e-05 deg
M 151.4915810830326 2.3199e-05 deg
tp 2458341.695698424422
(2018-Aug-11.19569842)
9.933e-05 TDB
period 1565.56256705259
4.29
1.0381e-05
2.842e-08
d
yr
n .2299492895245667 1.5247e-09 deg/d
Q 2.929927330723015 1.2952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2305  
   data-arc span      29207 days (79.96 yr)  
   first obs. used      1940-11-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:14:02  

Additional Information
 Earth MOID = 1.40486 au 
 Jupiter MOID = 2.25392 au 
 T_jup = 3.346 
[ 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 11.6   n/a MPO473818  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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
2000-Aug-21 20:01 < 00:01 Psych 0.0211742435425155 0.021173290990369 0.0211751961085189 5.85570530260186 5.85570520502068 2451778.333790162 0.442060112258554 85.7760821899564 43.9583449906971 -75.8972800537902 70432.4357389038 T 34 CATAB v2.0f-lin.ifort 2020-Dec-18 02:14:06 2020-Dec-18 02:14

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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