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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701402486641787 4.981e-08  
a 2.312823824739322 1.2022e-08 au
q 1.919319404081737 1.1471e-07 au
i 24.89987257276928 5.7577e-06 deg
node 98.35427035739944 1.2578e-05 deg
peri 202.8439151446952 2.0717e-05 deg
M 285.0567138795089 1.9386e-05 deg
tp 2459267.949928970124
(2021-Feb-22.44992897)
6.9964e-05 TDB
period 1284.731153561187
3.52
1.0017e-05
2.743e-08
d
yr
n .2802142681775129 2.1848e-09 deg/d
Q 2.706328245396907 1.4067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1408  
   data-arc span      12715 days (34.81 yr)  
   first obs. used      1985-04-14  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:43:11  

Additional Information
 Earth MOID = .915682 au 
 Jupiter MOID = 2.50755 au 
 T_jup = 3.442 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456376.5 (2013-Mar-25.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705587921802099 4.9889e-08  
q 1.918293816207112 1.1499e-07 au
tp 2456697.481127610845
(2014-Feb-08.98112761)
6.4542e-05 TDB
node 98.41781833578594 1.2573e-05 deg
peri 202.7072454237196 2.0663e-05 deg
i 24.90799937146359 5.7587e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1408  
   data-arc span      12715 days (34.81 yr)  
   first obs. used      1985-04-14  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:43:11  

Additional Information
 Jupiter MOID = 2.50755 au 
 T_jup = 3.442 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.488865439003299E-15 -5.71539864567363E-15 -4.439908088496991E-14 -4.143163364185463E-15 -1.193285940536006E-14 8.826679565803987E-15
q -5.71539864567363E-15 1.322334807108486E-14 1.732134401684453E-13 9.166971670611521E-15 3.69578189218185E-14 -2.006151257452048E-14
tp -4.439908088496991E-14 1.732134401684453E-13 4.165606450511416E-9 -2.080258836099476E-11 1.085094959282426E-9 6.379824033606301E-13
node -4.143163364185463E-15 9.166971670611521E-15 -2.080258836099476E-11 1.580845808185408E-10 -1.474949556105993E-10 2.526655826113808E-12
peri -1.193285940536006E-14 3.69578189218185E-14 1.085094959282426E-9 -1.474949556105993E-10 4.269457106151735E-10 -2.204836869921323E-12
i 8.826679565803987E-15 -2.006151257452048E-14 6.379824033606301E-13 2.526655826113808E-12 -2.204836869921323E-12 3.316226638687623E-11

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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