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JPL Small-Body Database Browser
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344845 (2004 GJ18)
Classification: Inner Main-belt Asteroid          SPK-ID: 2344845
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04937392281476729 7.8537e-08  
a 1.877438585543097 1.2805e-08 au
q 1.784742077731027 1.4438e-07 au
i 22.64414098660131 7.5381e-06 deg
node 181.0474689622754 1.7366e-05 deg
peri 78.47586137519349 7.3468e-05 deg
M 262.3274350121118 6.794e-05 deg
tp 2458855.427758882304
(2020-Jan-06.92775888)
0.00017685 TDB
period 939.6087141666643
2.57
9.6128e-06
2.632e-08
d
yr
n .3831382090993938 3.9198e-09 deg/d
Q 1.970135093355168 1.3437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      5878 days (16.09 yr)  
   first obs. used      2002-10-01  
   last obs. used      2018-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61378  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:23:44  

Additional Information
 Earth MOID = .842862 au 
 Jupiter MOID = 3.05013 au 
 T_jup = 3.879 
[ 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 17.6   n/a MPO418779  

344845 (2004 GJ18)          Discovered 2004-Apr-12 by CSS at Catalina
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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