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46564 (1991 RA11)
Classification: Main-belt Asteroid          SPK-ID: 2046564
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 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1316167275227924 1.8688e-08  
a 3.184387033927625 1.7147e-08 au
q 2.76526843335606 5.9534e-08 au
i 17.1699807940109 4.9482e-07 deg
node 19.84899754332444 2.5383e-06 deg
peri 102.964771433576 1.1121e-05 deg
M 315.1103819009998 8.3994e-06 deg
tp 2459459.309734414874
(2021-Sep-01.80973441)
4.894e-05 TDB
period 2075.569103392081
5.68
1.6764e-05
4.59e-08
d
yr
n .1734464053312683 1.4009e-09 deg/d
Q 3.603505634499191 1.9403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2308  
   data-arc span      18206 days (49.85 yr)  
   first obs. used      1971-05-14  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4167  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:39:15  

Additional Information
 Earth MOID = 1.84115 au 
 Jupiter MOID = 1.61516 au 
 T_jup = 3.116 
[ 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 12.30   n/a MPCxxxxx  
diameter diameter 21.536 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.037   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

46564 (1991 RA11)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RA11 = 1980 XN1 = 1999 CZ123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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