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39475 (1978 VE8)
Classification: Main-belt Asteroid          SPK-ID: 2039475
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06853685361545098 4.4441e-08  
a 3.015027046861758 2.0998e-08 au
q 2.808386579504369 1.3744e-07 au
i 3.180035050562806 4.4552e-06 deg
node 60.31858162082103 9.7517e-05 deg
peri 68.07197948033475 0.00010545 deg
M 203.0974134746865 4.239e-05 deg
tp 2459433.917945584861
(2021-Aug-07.41794558)
0.00022947 TDB
period 1912.208505002213
5.24
1.9976e-05
5.469e-08
d
yr
n .1882639885024376 1.9667e-09 deg/d
Q 3.221667514219147 2.2437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      14970 days (40.99 yr)  
   first obs. used      1978-11-05  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:48:24  

Additional Information
 Earth MOID = 1.8258 au 
 Jupiter MOID = 1.81074 au 
 T_jup = 3.242 
[ 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 14.2   n/a MPO412460  
diameter diameter 3.746 km 0.888 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.288   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39475 (1978 VE8)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 VE8 = 1999 VA38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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