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20747 (2000 AM186)
Classification: Main-belt Asteroid          SPK-ID: 2020747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176552216657528 2.014e-08  
a 2.671575108943041 1.0941e-08 au
q 2.35725034730364 5.2608e-08 au
i 13.77159900465823 4.4212e-07 deg
node 123.6743337604755 4.2011e-06 deg
peri 96.65713028808686 1.2678e-05 deg
M 129.3687933318411 9.0543e-06 deg
tp 2458627.339126080467
(2019-May-23.83912608)
3.8981e-05 TDB
period 1594.958948730077
4.37
9.7979e-06
2.683e-08
d
yr
n .2257111383880041 1.3866e-09 deg/d
Q 2.985899870582442 1.2228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2217  
   data-arc span      15358 days (42.05 yr)  
   first obs. used      1979-01-24  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4291  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:29:57  

Additional Information
 Earth MOID = 1.39536 au 
 Jupiter MOID = 2.15076 au 
 T_jup = 3.330 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.06   n/a E2021B10  
diameter diameter 7.247 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.422 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.256   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

20747 (2000 AM186)          Discovered 2000-Jan-08 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 AM186 = 1979 BG2 = 1998 QG108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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