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10487 Danpeterson (1985 GP1)
Classification: Main-belt Asteroid          SPK-ID: 2010487
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701402447542598 4.1929e-08  
a 2.312823823582558 1.0111e-08 au
q 1.919319412164739 9.9654e-08 au
i 24.89987447946049 4.346e-06 deg
node 98.35427101554643 1.2364e-05 deg
peri 202.8439129368357 2.0469e-05 deg
M 285.0567164149001 1.8886e-05 deg
tp 2459267.949919721431
(2021-Feb-22.44991972)
6.7956e-05 TDB
period 1284.731152597346
3.52
8.425e-06
2.307e-08
d
yr
n .2802142683877375 1.8376e-09 deg/d
Q 2.706328235000378 1.1832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      12895 days (35.30 yr)  
   first obs. used      1985-04-14  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:17:57  

Additional Information
 Earth MOID = .915682 au 
 Jupiter MOID = 2.50755 au 
 T_jup = 3.442 
[ 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 12.8   n/a MPO502249  
diameter diameter 5.669 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.498   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10487 Danpeterson           Discovered 1985 Apr. 14 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Dan Peterson (b. 1949) is a juvenile probation director who works with troubled youth to keep them in school and help them find direction in their lives. He served previously as a smoke jumper in Alaska and is a piano player extraordinaire.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1985 GP1 = 1996 PM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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