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12655 Benferinga (5041 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017874991662141 3.0297e-08  
a 3.040390889417829 1.5987e-08 au
q 2.730917104296247 9.108e-08 au
i 11.71690127224031 4.7004e-06 deg
node 151.9333689871124 1.6967e-05 deg
peri 113.6969601292512 2.8877e-05 deg
M 114.1401416200872 2.31e-05 deg
tp 2458386.556413505705
(2018-Sep-25.05641351)
0.00012432 TDB
period 1936.388793642863
5.30
1.5273e-05
4.182e-08
d
yr
n .1859130775709273 1.4663e-09 deg/d
Q 3.349864674539412 1.7614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2045  
   data-arc span      15634 days (42.80 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:35:43  

Additional Information
 Earth MOID = 1.74117 au 
 Jupiter MOID = 1.86761 au 
 T_jup = 3.201 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456973.5 (2014-Nov-12.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1029967396403095 3.0118e-08  
q 2.727328670016343 9.0858e-08 au
tp 2456456.299810940638
(2013-Jun-12.79981094)
0.00012531 TDB
node 152.0410419183224 1.6945e-05 deg
peri 114.7969516342509 2.8741e-05 deg
i 11.72490618513589 4.7044e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2045  
   data-arc span      15634 days (42.80 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:35:43  

Additional Information
 Jupiter MOID = 1.86761 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.070987383014244E-16 -2.70211204501551E-15 3.785485468561664E-13 1.204699943555E-15 6.1963951836455E-14 -1.08036907791236E-15
q -2.70211204501551E-15 8.255209218840157E-15 -1.496330197595296E-12 -3.731329114616483E-15 -2.421347766811699E-13 3.790861546115645E-15
tp 3.785485468561664E-13 -1.496330197595296E-12 1.570315215340428E-8 1.403814855939973E-11 2.919802358578581E-9 1.399715843106648E-12
node 1.204699943555E-15 -3.731329114616483E-15 1.403814855939973E-11 2.871408847032719E-10 -2.781908574103365E-10 1.293857394085401E-11
peri 6.1963951836455E-14 -2.421347766811699E-13 2.919802358578581E-9 -2.781908574103365E-10 8.260369788901504E-10 -1.2386153341703E-11
i -1.08036907791236E-15 3.790861546115645E-15 1.399715843106648E-12 1.293857394085401E-11 -1.2386153341703E-11 2.213182879425586E-11

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 12.8   n/a MPO395124  
diameter diameter 9.965 km 0.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12655 Benferinga           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Ben Feringa (b. 1951) is a renowned Dutch chemist, who won the 2016 Nobel Prize in Chemistry for the development of molecular machines. He is a passionate lecturer and public advocate for science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-10-26Last Updated: 2019-04-09

[ show close-approach data ]
Alternate Designations
 5041 T-3 = 1987 QA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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