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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486509400491749 2.5438e-08  
a 2.453534594252961 7.985e-09 au
q 2.088814370374088 6.281e-08 au
i 7.457458495836164 6.3915e-06 deg
node 355.0027424525106 2.2217e-05 deg
peri 86.30539168361099 3.438e-05 deg
M 111.3429252115992 2.4399e-05 deg
tp 2458962.342975878165
(2020-Apr-22.84297588)
9.4706e-05 TDB
period 1403.740097422716
3.84
6.8527e-06
1.876e-08
d
yr
n .2564577307871767 1.252e-09 deg/d
Q 2.818254818131834 9.172e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      24324 days (66.60 yr)  
   first obs. used      1954-11-04  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46921  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:37:00  

Additional Information
 Earth MOID = 1.12007 au 
 Jupiter MOID = 2.43019 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 14.35   n/a MPCxxxxx  
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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