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66636 (1999 RA213)
Classification: Main-belt Asteroid          SPK-ID: 2066636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407664777785735 4.0666e-08  
a 2.678117116435907 1.4965e-08 au
q 2.301128002876714 1.0677e-07 au
i 11.04413723330174 4.9703e-06 deg
node 224.4176251794929 2.1219e-05 deg
peri 239.7012224137139 2.7433e-05 deg
M 276.3068629984905 2.0409e-05 deg
tp 2459768.660366152966
(2022-Jul-08.16036615)
9.2115e-05 TDB
period 1600.821006537861
4.38
1.3418e-05
3.674e-08
d
yr
n .2248846051680579 1.885e-09 deg/d
Q 3.0551062299951 1.7072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      10750 days (29.43 yr)  
   first obs. used      1992-01-13  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57226  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:30:34  

Additional Information
 Earth MOID = 1.34009 au 
 Jupiter MOID = 2.21991 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415457025246788 4.0916e-08  
q 2.299128600024263 1.0789e-07 au
tp 2458160.064402484368
(2018-Feb-10.56440248)
8.6108e-05 TDB
node 224.6825935460757 2.1149e-05 deg
peri 238.1181917100893 2.7323e-05 deg
i 11.06314351784864 4.9792e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      10750 days (29.43 yr)  
   first obs. used      1992-01-13  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57226  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:30:34  

Additional Information
 Jupiter MOID = 2.21991 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.674109542394134E-15 -4.384799532634361E-15 -3.016330084134082E-13 -4.076103382721091E-15 -9.079721897810182E-14 1.215303448749955E-15
q -4.384799532634361E-15 1.164004381954892E-14 1.212205650054567E-12 1.087933189509758E-14 3.064498287103684E-13 -2.606340601662355E-15
tp -3.016330084134082E-13 1.212205650054567E-12 7.414599838338277E-9 1.326756997708996E-11 1.50056909482344E-9 3.884517051990073E-12
node -4.076103382721091E-15 1.087933189509758E-14 1.326756997708996E-11 4.472703223541015E-10 -4.357492356724871E-10 1.459446301034908E-11
peri -9.079721897810182E-14 3.064498287103684E-13 1.50056909482344E-9 -4.357492356724871E-10 7.465210630626189E-10 -1.358638784372571E-11
i 1.215303448749955E-15 -2.606340601662355E-15 3.884517051990073E-12 1.459446301034908E-11 -1.358638784372571E-11 2.479252048437688E-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 14.64   n/a E2021B10  
diameter diameter 3.252 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66636 (1999 RA213)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RA213 = 1992 AW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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