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5054 Keil (1986 AO2)
Classification: Main-belt Asteroid          SPK-ID: 2005054
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485372940903546 3.0446e-08  
a 2.453948704510787 8.9689e-09 au
q 2.089445804106223 7.7016e-08 au
i 7.456548046095389 6.5351e-06 deg
node 355.00620032 2.534e-05 deg
peri 86.40460814524256 3.881e-05 deg
M 9.717990091941221 2.5927e-05 deg
tp 2458962.597260685246
(2020-Apr-23.09726069)
0.00010112 TDB
period 1404.09549960611
3.84
7.6977e-06
2.108e-08
d
yr
n .2563928166574072 1.4056e-09 deg/d
Q 2.81845160491535 1.0301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1602  
   data-arc span      23904 days (65.45 yr)  
   first obs. used      1954-11-04  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48138  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:15:45  

Additional Information
 Earth MOID = 1.12079 au 
 Jupiter MOID = 2.42936 au 
 T_jup = 3.467 
[ 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 14.3   n/a MPO502201  
diameter diameter 4.379 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5054 Keil (1986 AO2)          Discovered 1986-Jan-12 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1986 AO2 = 1988 TA5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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