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227589 (2006 AA20)
Classification: Main-belt Asteroid          SPK-ID: 2227589
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1712028817401777 5.9952e-08  
a 2.667881935623502 2.2291e-08 au
q 2.211132860102195 1.572e-07 au
i 15.21243203318731 4.7133e-06 deg
node 91.57120525144525 2.4984e-05 deg
peri 304.0352629363922 2.9419e-05 deg
M 210.2809186214645 2.0186e-05 deg
tp 2459862.446651346781
(2022-Oct-09.94665135)
9.4625e-05 TDB
period 1591.652795960885
4.36
1.9948e-05
5.461e-08
d
yr
n .2261799815346456 2.8347e-09 deg/d
Q 3.124631011144809 2.6107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      7213 days (19.75 yr)  
   first obs. used      2000-08-26  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55936  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:22  

Additional Information
 Earth MOID = 1.25678 au 
 Jupiter MOID = 2.34121 au 
 T_jup = 3.312 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457493.5 (2016-Apr-15.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705713875572676 5.9791e-08  
q 2.213513924364559 1.5652e-07 au
tp 2458272.084683529011
(2018-Jun-02.58468353)
8.2825e-05 TDB
node 91.58366881014582 2.4984e-05 deg
peri 304.3415266627262 2.9469e-05 deg
i 15.21027173185076 4.7126e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      7213 days (19.75 yr)  
   first obs. used      2000-08-26  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55936  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:22  

Additional Information
 Jupiter MOID = 2.34121 au 
 T_jup = 3.312 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.574927157833339E-15 -9.295543477289583E-15 7.63232174461361E-14 2.801283278725298E-14 -1.817512187319222E-13 3.754121439881235E-15
q -9.295543477289583E-15 2.449752566956806E-14 5.893549011946896E-13 -7.403209984013248E-14 5.937649168799857E-13 -8.698739314937048E-15
tp 7.63232174461361E-14 5.893549011946896E-13 6.860009323141395E-9 1.591530752274668E-11 1.329390601388737E-9 -1.767669619335797E-12
node 2.801283278725298E-14 -7.403209984013248E-14 1.591530752274668E-11 6.242219200551049E-10 -6.00007580943261E-10 -1.06276236045896E-11
peri -1.817512187319222E-13 5.937649168799857E-13 1.329390601388737E-9 -6.00007580943261E-10 8.684102640717646E-10 9.616115848469097E-12
i 3.754121439881235E-15 -8.698739314937048E-15 -1.767669619335797E-12 -1.06276236045896E-11 9.616115848469097E-12 2.220882884201487E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.63   n/a E2021B55  
diameter diameter 1.903 km 0.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.308   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227589 (2006 AA20)          Discovered 2006-Jan-05 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2006 AA20 = 2000 SH371 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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