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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

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
4.4531e-05 TDB
period 1712.69964238082
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] (  
geometric albedo albedo 0.041   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1936-Nov-25 06:03 < 00:01 Psych 0.0397919057549913 0.0397819317870253 0.0398018797232502 3.17194783321233 3.17194773735344 2428497.751947924 0.880784792878402 496.662035796993 36.058961277398 -0.480946697098043 12047.4206097734 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 17:29:51 2020-Feb-22 17:29

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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