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180618 (2004 FD121)
Classification: Main-belt Asteroid          SPK-ID: 2180618
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091277264518136 4.8274e-08  
a 2.67387520417008 2.294e-08 au
q 2.38208128232312 1.3265e-07 au
i 13.36146804295672 5.9823e-06 deg
node 151.9668355748726 2.5499e-05 deg
peri 109.7116137586964 4.3782e-05 deg
M 243.4321277028445 3.9227e-05 deg
tp 2459717.614238866560
(2022-May-18.11423887)		 0.00017736 TDB
period 1597.019164229048
4.37		 2.0552e-05
5.627e-08		 d
yr
n .2254199624296856 2.901e-09 deg/d
Q 2.965669126017039 2.5444e-08 au
   Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      9472 days (25.93 yr)  
   first obs. used      1995-02-05  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:50:15  

Additional Information
 Earth MOID = 1.40321 au 
 Jupiter MOID = 2.22673 au 
 T_jup = 3.333 
[ 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 16.1   n/a MPO449917  

180618 (2004 FD121)          Discovered 2004-Mar-23 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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