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JPL Small-Body Database Browser
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39885 (1998 EG12)
Classification: Main-belt Asteroid          SPK-ID: 2039885
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1284209643884386 4.1814e-08  
a 2.265593830352863 9.1188e-09 au
q 1.974644085746452 9.487e-08 au
i 6.702716833985767 4.1268e-06 deg
node 102.6309388305503 3.727e-05 deg
peri 266.1021213465392 4.1602e-05 deg
M 226.9468216857634 2.2126e-05 deg
tp 2459060.856478600573
(2020-Jul-30.35647860)
7.8156e-05 TDB
period 1245.579657667399
3.41
7.52e-06
2.059e-08
d
yr
n .2890220611616066 1.7449e-09 deg/d
Q 2.556543574959274 1.029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1274  
   data-arc span      7744 days (21.20 yr)  
   first obs. used      1998-02-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53091  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:12:06  

Additional Information
 Earth MOID = .986294 au 
 Jupiter MOID = 2.91574 au 
 T_jup = 3.597 
[ 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 14.7   n/a MPO337581  

39885 (1998 EG12)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EG12 = 1999 NZ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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