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5102 Benfranklin (1986 RD1)
Classification: Main-belt Asteroid          SPK-ID: 2005102
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941008942284292 4.0962e-08  
a 2.801486410439325 1.0568e-08 au
q 2.25771539300426 1.1443e-07 au
i 8.10344734209334 4.5023e-06 deg
node 317.247221019125 2.5517e-05 deg
peri 53.16384366324188 2.796e-05 deg
M 50.67069128566777 9.3203e-06 deg
tp 2458759.434236544022
(2019-Oct-02.93423654)
4.4531e-05 TDB
period 1712.69964238082
4.69
9.6911e-06
2.653e-08
d
yr
n .2101944737371257 1.1894e-09 deg/d
Q 3.345257427874391 1.2619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2260  
   data-arc span      29401 days (80.50 yr)  
   first obs. used      1939-08-08  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:29:35  

Additional Information
 Earth MOID = 1.26759 au 
 Jupiter MOID = 2.1812 au 
 T_jup = 3.283 
[ 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 12.7   n/a MPO412211  
diameter diameter 16.727 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.041   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5102 Benfranklin (1986 RD1)          Discovered 1986-Sep-02 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 RD1 = 1930 UA1 = 1939 PB = 1988 AJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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