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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .102904614102781 1.696e-08  
a 3.130273725840109 1.3649e-08 au
q 2.808154116046458 5.2065e-08 au
i 2.338212541877546 4.1494e-07 deg
node 136.5088551136174 5.8977e-06 deg
peri 28.79449010953564 9.7206e-06 deg
M 118.6798873848049 9.0829e-06 deg
tp 2458533.621792544335
(2019-Feb-19.12179254)
4.8796e-05 TDB
period 2022.888291978421
5.54
1.3231e-05
3.622e-08
d
yr
n .1779633613124101 1.164e-09 deg/d
Q 3.45239333563376 1.5054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2505  
   data-arc span      32666 days (89.43 yr)  
   first obs. used      1931-04-08  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:49:43  

Additional Information
 Earth MOID = 1.81549 au 
 Jupiter MOID = 1.51795 au 
 T_jup = 3.204 
[ 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 12.23   n/a E2021B10  
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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