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12879 (1998 QN18)
Classification: Main-belt Asteroid          SPK-ID: 2012879
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05857937376775925 6.0955e-08  
a 2.99845221557166 2.0083e-08 au
q 2.822804762510922 1.836e-07 au
i 10.20377953590131 7.0085e-06 deg
node 334.6414554080546 2.2785e-05 deg
peri 223.519049746698 4.7694e-05 deg
M 191.7598182242373 4.3561e-05 deg
tp 2459886.780824910150
(2022-Nov-03.28082491)
0.00023241 TDB
period 1896.461912962691
5.19
1.9054e-05
5.217e-08
d
yr
n .1898271710806998 1.9072e-09 deg/d
Q 3.174099668632398 2.126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1253  
   data-arc span      10527 days (28.82 yr)  
   first obs. used      1991-03-10  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:57:06  

Additional Information
 Earth MOID = 1.83274 au 
 Jupiter MOID = 1.83728 au 
 T_jup = 3.227 
[ 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 13.5   n/a MPO502266  

12879 (1998 QN18)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QN18 = 1991 EE2 = 1996 DJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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