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10028 Bonus (1981 JM2)
Classification: Main-belt Asteroid          SPK-ID: 2010028
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760731776741584 4.9655e-08  
a 2.43317237270415 1.5454e-08 AU
q 2.004755981213158 1.2001e-07 AU
i 1.64824154544021 5.9961e-06 deg
node 214.7102696733642 0.00019894 deg
peri 67.78922893494418 0.00019994 deg
M 218.65508904879 2.4184e-05 deg
tp 2457344.796344552596
(2015-Nov-18.29634455)
9.4581e-05 JED
period 1386.301655434713
3.80
1.3207e-05
3.616e-08
d
yr
n .2596837409727481 2.474e-09 deg/d
Q 2.861588764195141 1.8175e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      12922 days (35.38 yr)  
   first obs. used      1978-10-27  
   last obs. used      2014-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51873  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:57:47  

Additional Information
 Earth MOID = .988477 AU 
 T_jup = 3.484 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO253434  

10028 Bonus           Discovered 1981 May 5 by C. S. Shoemaker at Palomar.
Shelley R. Bonus (b. 1947) has taken part in the organization and inventory of the Palomar Observatory's 1.2-m Schmidt Oschin Telescope plate archive. She has also devoted considerable time and energy to public outreach in astronomy through planetarium presentations and the Telescopes in Education program.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1981 JM2 = 1978 UL5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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