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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028768685251993 3.4404e-08  
a 3.125977851370739 1.5238e-08 au
q 2.804387038942587 1.0497e-07 au
i 2.336172432283718 3.757e-06 deg
node 136.5456978207169 9.3698e-05 deg
peri 27.94350693194444 9.5544e-05 deg
M 83.92376649062533 1.7939e-05 deg
tp 2458529.891531798204
(2019-Feb-15.39153180)
0.0001008 TDB
period 2018.725512892362
5.53
1.4761e-05
4.041e-08
d
yr
n .1783303364924556 1.304e-09 deg/d
Q 3.447568663798891 1.6806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2451  
   data-arc span      32666 days (89.43 yr)  
   first obs. used      1931-04-08  
   last obs. used      2020-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46598  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:02:16  

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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