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256797 Benbow (2008 CA70)
Classification: Main-belt Asteroid          SPK-ID: 2256797
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06708883350676965 4.411e-08  
a 2.313297867623726 1.5262e-08 au
q 2.158101412131153 1.0411e-07 au
i 6.140062374813679 6.1044e-06 deg
node 345.3457346359083 3.6456e-05 deg
peri 107.4953216965808 6.423e-05 deg
M 330.8463755042349 5.4015e-05 deg
tp 2459500.572459472401
(2021-Oct-13.07245947)
0.00019341 TDB
period 1285.126156972578
3.52
1.2718e-05
3.482e-08
d
yr
n .2801281399859341 2.7721e-09 deg/d
Q 2.4684943231163 1.6285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-09-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54675  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:37:39  

Additional Information
 Earth MOID = 1.18427 au 
 Jupiter MOID = 2.62264 au 
 T_jup = 3.572 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457843.5 (2017-Mar-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06749060313319792 4.3575e-08  
q 2.157576685479921 1.0308e-07 au
tp 2458210.849987527571
(2018-Apr-02.34998753)
0.00018551 TDB
node 345.4400669349581 3.649e-05 deg
peri 106.2912882837235 6.4093e-05 deg
i 6.137279740861846 6.1005e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-09-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54675  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:37:39  

Additional Information
 Jupiter MOID = 2.62264 au 
 T_jup = 3.572 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.898764565982237E-15 -4.447904860076439E-15 2.708738132531724E-12 7.946943541662968E-15 8.338937945029034E-13 -2.880626374275255E-15
q -4.447904860076439E-15 1.062551746963396E-14 -4.82964895629779E-12 -1.987010852672691E-14 -1.538693019286922E-12 8.058426007996281E-15
tp 2.708738132531724E-12 -4.82964895629779E-12 3.441257192355397E-8 -6.146937429664083E-12 9.778137269099137E-9 1.572914320944185E-11
node 7.946943541662968E-15 -1.987010852672691E-14 -6.146937429664083E-12 1.331521328100791E-9 -1.324804956218616E-9 -4.378535921243384E-11
peri 8.338937945029034E-13 -1.538693019286922E-12 9.778137269099137E-9 -1.324804956218616E-9 4.107948331501393E-9 4.780108008927744E-11
i -2.880626374275255E-15 8.058426007996281E-15 1.572914320944185E-11 -4.378535921243384E-11 4.780108008927744E-11 3.721668370515223E-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 17.82   n/a E2021B55  

256797 Benbow           Discovered 2008 Feb. 9 by J. Lacruz at La Cañada.
Admiral Benbow Inn is the fictional home of Jim Hawkins in Robert Louis Stevenson's 1883 novel "Treasure Island".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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
2140-Jun-20 17:28 < 00:01 Juno 0.0362756778409623 0.0362363224286545 0.0363150771852218 7.51973713905446 7.51973709445519 2502850.227625638 0.861310111797295 2796.25250943544 66.8151508150494 45.4256945865537 57855.092163709 T 17 CATAB v2.0f-lin.ifort 2021-Apr-14 02:37:40 2021-Apr-14 02:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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