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39271 (2001 AM20)
Classification: Main-belt Asteroid          SPK-ID: 2039271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922102926186524 4.5123e-08  
a 2.700136440032333 1.7723e-08 au
q 2.181142424783432 1.2355e-07 au
i 12.96919542575227 4.9045e-06 deg
node 93.71070547383995 2.8526e-05 deg
peri 219.7876395105336 3.2572e-05 deg
M 160.6151455663225 1.7543e-05 deg
tp 2457877.462226415076
(2017-May-03.96222642)
7.8095e-05 TDB
period 1620.604318308762
4.44
1.5956e-05
4.369e-08
d
yr
n .2221393562468664 2.1871e-09 deg/d
Q 3.219130455281234 2.1129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53347  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:05:54  

Additional Information
 Earth MOID = 1.18197 au 
 Jupiter MOID = 2.07659 au 
 T_jup = 3.305 
[ 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 14.4   n/a MPO385066  
diameter diameter 7.059 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39271 (2001 AM20)          Discovered 2001-Jan-03 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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