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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1942258589949567 1.9158e-08  
a 2.801912541650076 9.5737e-09 au
q 2.257708671419347 5.1607e-08 au
i 8.103677815446396 1.2936e-06 deg
node 317.2459489116645 5.1453e-06 deg
peri 53.19566306702959 1.0978e-05 deg
M 92.66082959954727 7.5252e-06 deg
tp 2458759.565609239818
(2019-Oct-03.06560924)
3.5702e-05 TDB
period 1713.090432706863
4.69
8.78e-06
2.404e-08
d
yr
n .2101465241570243 1.0771e-09 deg/d
Q 3.346116411880804 1.1433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2702  
   data-arc span      29811 days (81.62 yr)  
   first obs. used      1939-08-08  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:03:12  

Additional Information
 Earth MOID = 1.2661 au 
 Jupiter MOID = 2.18143 au 
 T_jup = 3.282 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457231.5 (2015-Jul-28.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958492176764934 2.0243e-08  
q 2.251260108929603 5.5215e-08 au
tp 2457040.573065463427
(2015-Jan-18.07306546)
3.5077e-05 TDB
node 317.6396995087571 5.1364e-06 deg
peri 51.69884245850607 1.0777e-05 deg
i 8.124038229221647 1.2938e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2702  
   data-arc span      29811 days (81.62 yr)  
   first obs. used      1939-08-08  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:03:12  

Additional Information
 Jupiter MOID = 2.18143 au 
 T_jup = 3.282 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.097760797359677E-16 -1.108044070076256E-15 -6.239418546133467E-13 1.758818725755206E-14 -1.855811102521414E-13 -1.357408977066731E-14
q -1.108044070076256E-15 3.048714468567055E-15 1.709148942004297E-12 -4.972941767361451E-14 5.105730918787667E-13 3.749149722582591E-14
tp -6.239418546133467E-13 1.709148942004297E-12 1.230361211840967E-9 -3.830511164047335E-12 3.270174381621357E-10 1.764495631998114E-11
node 1.758818725755206E-14 -4.972941767361451E-14 -3.830511164047335E-12 2.638310553481101E-11 -2.843880372854727E-11 -1.318341627439893E-12
peri -1.855811102521414E-13 5.105730918787667E-13 3.270174381621357E-10 -2.843880372854727E-11 1.161495779038199E-10 6.13274276994514E-12
i -1.357408977066731E-14 3.749149722582591E-14 1.764495631998114E-11 -1.318341627439893E-12 6.13274276994514E-12 1.673920997942309E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.79   n/a E2021B10  
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

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