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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0495415381816864 7.8331e-08  
a 1.877618416229224 1.2726e-08 au
q 1.784598311770967 1.4394e-07 au
i 22.64431448482323 7.4935e-06 deg
node 181.0306909292494 1.7162e-05 deg
peri 78.32146352339664 7.306e-05 deg
M 55.73166257246734 6.7265e-05 deg
tp 2458855.018111645722
(2020-Jan-06.51811165)
0.00017583 TDB
period 939.743718203982
2.57
9.5539e-06
2.616e-08
d
yr
n .3830831672788665 3.8946e-09 deg/d
Q 1.970638520687482 1.3356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      6511 days (17.83 yr)  
   first obs. used      2002-10-01  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 21:38:43  

Additional Information
 Earth MOID = .842311 au 
 Jupiter MOID = 3.04841 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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