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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762990670271103 4.1747e-08  
a 2.431787571419861 1.4311e-08 AU
q 2.003065691370417 1.0468e-07 AU
i 1.648891671093627 5.8836e-06 deg
node 214.6531646798363 0.00016911 deg
peri 68.03826798712758 0.00017016 deg
M 270.4004813827595 2.035e-05 deg
tp 2457345.238711630288
(2015-Nov-18.73871163)
7.8091e-05 JED
period 1385.11833659588
3.79
1.2227e-05
3.348e-08
d
yr
n .2599055910881591 2.2943e-09 deg/d
Q 2.860509451469305 1.6834e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      13440 days (36.80 yr)  
   first obs. used      1978-10-27  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49303  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:29:33  

Additional Information
 Earth MOID = .988686 AU 
 T_jup = 3.485 
[ 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 14.2 mag n/a MPO337343  

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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