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39467 (1978 RA7)
Classification: Main-belt Asteroid          SPK-ID: 2039467
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921104352587406 3.357e-08  
a 2.312870665788345 9.2115e-09 au
q 1.868544075486573 7.8839e-08 au
i .8055174706725057 4.3736e-06 deg
node 147.0731118981674 0.00026439 deg
peri 124.3651910547101 0.00026473 deg
M .03090687767188195 1.7353e-05 deg
tp 2459000.389699347568
(2020-May-30.88969935)
6.1927e-05 TDB
period 1284.770182772358
3.52
7.6753e-06
2.101e-08
d
yr
n .2802057557275882 1.674e-09 deg/d
Q 2.757197256090117 1.0981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      15204 days (41.63 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:43:41  

Additional Information
 Earth MOID = .852466 au 
 Jupiter MOID = 2.34585 au 
 T_jup = 3.558 
[ 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 15.7   n/a MPO267838  

39467 (1978 RA7)          Discovered 1978-Sep-02 by Lagerkvist, C.-I. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1978 RA7 = 1992 OF6 = 1998 BM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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