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58221 Boston (1993 BM14)
Classification: Main-belt Asteroid          SPK-ID: 2058221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128475466284997 3.0965e-08  
a 2.77258423795543 1.3305e-08 au
q 2.459704908881311 8.9945e-08 au
i 9.891886573843042 3.5093e-06 deg
node 142.2581737833351 2.2618e-05 deg
peri 330.122979884954 2.9691e-05 deg
M 350.2322453461999 1.8379e-05 deg
tp 2459046.252812237337
(2020-Jul-15.75281224)
8.6142e-05 TDB
period 1686.263935697189
4.62
1.2138e-05
3.323e-08
d
yr
n .2134897108210747 1.5367e-09 deg/d
Q 3.085463567029548 1.4806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1329  
   data-arc span      9946 days (27.23 yr)  
   first obs. used      1993-01-23  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:33:05  

Additional Information
 Earth MOID = 1.48116 au 
 Jupiter MOID = 2.0047 au 
 T_jup = 3.306 
[ 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 14.4   n/a MPO319765  

58221 Boston           Discovered 1993 Jan. 23 by E. W. Elst at the European Southern Observatory.
Boston, founded in 1630 by Puritan settlers from England, is the capital and largest city of the American state of Massachusetts. Several of the most famous universities of the United States, including Harvard and MIT, are located in the Boston area.
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 2015-06-02Last Updated: 2015-06-04

[ show close-approach data ]
Alternate Designations
 1993 BM14 = 2000 RR93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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