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285331 (1999 FN53)
Classification: Apollo [NEO]          SPK-ID: 2285331
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 103 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4557241958728545 1.2819e-08  
a 1.735396474631079 1.9009e-09 au
q .944534311709244 2.1883e-08 au
i 20.16251469072939 7.9694e-06 deg
node 50.59091273576422 1.541e-05 deg
peri 191.7075901105826 1.5757e-05 deg
M 71.0048255698479 5.6089e-06 deg
tp 2458835.804452883134
(2019-Dec-18.30445288)
1.2804e-05 TDB
period 835.0192608211886
2.29
1.372e-06
3.756e-09
d
yr
n .4311277797903282 7.0838e-10 deg/d
Q 2.526258637552913 2.7673e-09 au
  Orbit Determination Parameters
   # obs. used (total)      427  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      7877 days (21.57 yr)  
   first obs. used      1999-03-31  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45422  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-24 07:52:08  

Additional Information
 Earth MOID = .0578344 au 
 Jupiter MOID = 2.50706 au 
 T_jup = 3.963 
[ 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 18.3   n/a MPO214962  
diameter diameter 0.654 km 0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.198   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

285331 (1999 FN53)          Discovered 1999-Mar-31 by LONEOS at Anderson Mesa
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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