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47801 (2000 EF55)
Classification: Outer Main-belt Asteroid          SPK-ID: 2047801
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361983618607898 3.2358e-08  
a 3.200517588594549 1.8816e-08 au
q 2.764612335921326 1.077e-07 au
i 14.36735248379009 4.2245e-06 deg
node 172.2032938211959 1.3847e-05 deg
peri 322.7855080692679 2.0381e-05 deg
M 240.1991727025058 1.5304e-05 deg
tp 2459696.462870303339
(2022-Apr-26.96287030)
9.1119e-05 TDB
period 2091.359792424761
5.73
1.8443e-05
5.049e-08
d
yr
n .1721368084554258 1.518e-09 deg/d
Q 3.636422841267772 2.1379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1657  
   data-arc span      10617 days (29.07 yr)  
   first obs. used      1991-10-02  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:40:27  

Additional Information
 Earth MOID = 1.7917 au 
 Jupiter MOID = 1.43597 au 
 T_jup = 3.131 
[ 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 13.3   n/a MPO452822  
diameter diameter 12.957 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47801 (2000 EF55)          Discovered 2000-Mar-10 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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