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43808 (1991 RF11)
Classification: Main-belt Asteroid          SPK-ID: 2043808
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181470805797207 4.4899e-08  
a 2.440053195343134 8.7676e-09 au
q 1.907762714319811 1.0933e-07 au
i 4.601313463658078 3.9823e-06 deg
node 323.4448756612289 5.3745e-05 deg
peri 75.10318270848708 5.4227e-05 deg
M 219.092046897509 9.5498e-06 deg
tp 2459745.417021298223
(2022-Jun-14.91702130)
3.8745e-05 TDB
period 1392.186341140544
3.81
7.5036e-06
2.054e-08
d
yr
n .2585860738333858 1.3937e-09 deg/d
Q 2.972343676366458 1.068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1363  
   data-arc span      11910 days (32.61 yr)  
   first obs. used      1987-10-14  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:34  

Additional Information
 Earth MOID = .920399 au 
 Jupiter MOID = 2.47992 au 
 T_jup = 3.465 
[ 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 14.74   n/a E2021B10  
diameter diameter 2.519 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.699   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43808 (1991 RF11)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RF11 = 1995 WL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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