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5656 Oldfield (A920 TA)
Classification: Main-belt Asteroid          SPK-ID: 2005656
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2638426722988586 4.2252e-08  
a 2.460214158662009 6.415e-09 au
q 1.811104680613136 1.0661e-07 au
i 4.013603822313043 3.8338e-06 deg
node 248.6670946782562 5.624e-05 deg
peri 83.55786397819213 5.675e-05 deg
M 330.297358243743 6.2436e-06 deg
tp 2459116.792143005270
(2020-Sep-24.29214301)
2.4467e-05 TDB
period 1409.476363262479
3.86
5.5128e-06
1.509e-08
d
yr
n .2554140029469648 9.9899e-10 deg/d
Q 3.109323636710881 8.1076e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1470  
   data-arc span      36462 days (99.83 yr)  
   first obs. used      1920-10-08  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:31:07  

Additional Information
 Earth MOID = .806135 au 
 Jupiter MOID = 2.29001 au 
 T_jup = 3.438 
[ 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 14.2   n/a MPO473844  
diameter diameter 7.691 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5656 Oldfield (A920 TA)          Discovered 1920-Oct-08 by Baade, W. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A920 TA = 1978 WW18 = 1981 JZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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