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30863 (1992 EA4)
Classification: Main-belt Asteroid          SPK-ID: 2030863
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1456728347095908 4.6994e-08  
a 2.425968337005386 1.0439e-08 au
q 2.072570652438099 1.098e-07 au
i 3.326195776657985 3.3045e-06 deg
node 123.2786767453496 7.8418e-05 deg
peri 77.70610364072672 7.9261e-05 deg
M 187.5023695874628 1.3269e-05 deg
tp 2459861.812531038626
(2022-Oct-09.31253104)
5.3432e-05 TDB
period 1380.149458311644
3.78
8.9079e-06
2.439e-08
d
yr
n .2608413152879782 1.6836e-09 deg/d
Q 2.779366021572673 1.1959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      10539 days (28.85 yr)  
   first obs. used      1992-02-28  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:41:20  

Additional Information
 Earth MOID = 1.0721 au 
 Jupiter MOID = 2.17932 au 
 T_jup = 3.494 
[ 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 15.2   n/a MPO337515  

30863 (1992 EA4)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 EA4 = 1996 GM12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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