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12114 (1998 QJ8)
Classification: Main-belt Asteroid          SPK-ID: 2012114
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641803527632945 3.9041e-08  
a 3.187933892103777 2.0526e-08 au
q 2.664537781112116 1.2281e-07 au
i 14.7341756253989 4.0456e-06 deg
node 140.1515760801877 1.6962e-05 deg
peri 275.9362091211483 2.0906e-05 deg
M 222.259487386616 1.4298e-05 deg
tp 2459795.965926182617
(2022-Aug-04.46592618)
8.6509e-05 TDB
period 2079.037808066907
5.69
2.0079e-05
5.497e-08
d
yr
n .1731570241787612 1.6723e-09 deg/d
Q 3.711330003095437 2.3896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1607  
   data-arc span      25698 days (70.36 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47043  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:30:50  

Additional Information
 Earth MOID = 1.7269 au 
 Jupiter MOID = 1.81169 au 
 T_jup = 3.126 
[ 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 13.1   n/a MPO313517  
diameter diameter 16.076 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12114 (1998 QJ8)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 QJ8 = 1927 BM = 1991 JS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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