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186830 (2004 FW61)
Classification: Main-belt Asteroid          SPK-ID: 2186830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136274845236864 2.9803e-08  
a 2.453426258688729 1.1454e-08 au
q 2.119085974985864 7.4529e-08 au
i 6.684055771750958 3.4649e-06 deg
node 151.4497585050231 3.734e-05 deg
peri 177.6020697411005 4.0745e-05 deg
M 42.19890982767168 1.7608e-05 deg
tp 2459231.965615342106
(2021-Jan-17.46561534)
6.831e-05 TDB
period 1403.647125452531
3.84
9.8293e-06
2.691e-08
d
yr
n .2564747175212839 1.796e-09 deg/d
Q 2.787766542391594 1.3015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      6990 days (19.14 yr)  
   first obs. used      2001-06-24  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:54  

Additional Information
 Earth MOID = 1.10723 au 
 Jupiter MOID = 2.54569 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.94   n/a E2021B55  

186830 (2004 FW61)          Discovered 2004-Mar-19 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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