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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762991090436129 4.7501e-08  
a 2.431787586062653 1.6296e-08 AU
q 2.003065601256489 1.1546e-07 AU
i 1.648891298589893 5.9308e-06 deg
node 214.6532051963761 0.0001985 deg
peri 68.03824090386112 0.00019949 deg
M 270.4004591549072 2.369e-05 deg
tp 2457345.238800266803
(2015-Nov-18.73880027)
9.182e-05 JED
period 1385.118349106431
3.79
1.3923e-05
3.812e-08
d
yr
n .2599055887406616 2.6125e-09 deg/d
Q 2.860509570868817 1.9169e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1035  
   data-arc span      13240 days (36.25 yr)  
   first obs. used      1978-10-27  
   last obs. used      2015-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50148  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:27:51  

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 14.1 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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