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39474 (1978 VC7)
Classification: Jupiter Trojan          SPK-ID: 2039474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08880908804425366 6.0124e-08  
a 5.268245757597583 1.5946e-07 au
q 4.800377656272333 3.8468e-07 au
i 13.0511228948588 6.4351e-06 deg
node 71.62820426395888 3.0842e-05 deg
peri 219.5853526478318 6.0413e-05 deg
M 264.9834100521814 5.8993e-05 deg
tp 2459766.220422980542
(2022-Jul-05.72042298)
0.00075207 TDB
period 4416.695573935713
12.09
0.00020053
5.49e-07
d
yr
n .08150890048308318 3.7008e-09 deg/d
Q 5.736113858922832 1.7363e-07 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      23952 days (65.58 yr)  
   first obs. used      1953-10-10  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52774  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:09:22  

Additional Information
 Earth MOID = 3.79545 au 
 Jupiter MOID = .434331 au 
 T_jup = 2.940 
[ 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 11.7   n/a MPO319561  
diameter diameter 26.068 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.060   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

39474 (1978 VC7)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 VC7 = 1978 WA14 = 2000 SM339 = 2001 WJ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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