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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 99 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4557178897381808 1.3499e-08  
a 1.735587367814367 1.911e-09 au
q .9446491550977596 2.3047e-08 au
i 20.16297096842927 8.0295e-06 deg
node 50.59626824024053 1.688e-05 deg
peri 191.7011405417715 1.7403e-05 deg
M 258.5706650813818 5.8715e-06 deg
tp 2458835.803953808863
(2019-Dec-18.30395381)
1.3901e-05 TDB
period 835.1570424784619
2.29
1.3793e-06
3.776e-09
d
yr
n .4310566536464118 7.1193e-10 deg/d
Q 2.526525580530974 2.7819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   # delay obs. used      1  
   # Doppler obs. used      3  
   data-arc span      7219 days (19.76 yr)  
   first obs. used      1999-03-31  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-20 08:11:22  

Additional Information
 Earth MOID = .0576652 au 
 Jupiter MOID = 2.50675 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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