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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485984841252422 2.7148e-08  
a 2.453958743234874 8.3486e-09 au
q 2.089304193884287 6.7746e-08 au
i 7.456963443549821 6.4561e-06 deg
node 355.002304265216 2.3715e-05 deg
peri 86.37346183993353 3.653e-05 deg
M 61.01982508046046 2.5074e-05 deg
tp 2458962.505034656024
(2020-Apr-23.00503466)
9.7652e-05 TDB
period 1404.104115520759
3.84
7.1653e-06
1.962e-08
d
yr
n .2563912433704974 1.3084e-09 deg/d
Q 2.81861329258546 9.5892e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1783  
   data-arc span      24238 days (66.36 yr)  
   first obs. used      1954-11-04  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47925  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:05:16  

Additional Information
 Earth MOID = 1.12027 au 
 Jupiter MOID = 2.42928 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 14.33   n/a E2021B10  
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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