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3208 Lunn (1981 JM)
Classification: Main-belt Asteroid          SPK-ID: 2003208
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .10287686355533 3.5165e-08  
a 3.125977853009351 1.5423e-08 au
q 2.804387055948324 1.0788e-07 au
i 2.336172171569574 3.8188e-06 deg
node 136.5456910704074 9.4942e-05 deg
peri 27.94351185022147 9.6795e-05 deg
M 83.92376752608142 1.7997e-05 deg
tp 2458529.891525621777
(2019-Feb-15.39152562)
0.00010117 TDB
period 2018.725514479661
5.53
1.494e-05
4.09e-08
d
yr
n .1783303363522367 1.3198e-09 deg/d
Q 3.447568650070377 1.701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2345  
   data-arc span      32528 days (89.06 yr)  
   first obs. used      1931-04-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:50:56  

Additional Information
 Earth MOID = 1.81223 au 
 Jupiter MOID = 1.52469 au 
 T_jup = 3.205 
[ 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 12.2   n/a MPO473809  
diameter diameter 20.114 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3208 Lunn (1981 JM)          Discovered 1981-May-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 JM = 1931 GH = 1942 EA1 = 1962 WN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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