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78921 (2003 SP108)
Classification: Main-belt Asteroid          SPK-ID: 2078921
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409333359598768 4.8493e-08  
a 2.402422326807928 1.1506e-08 au
q 2.063840933906397 1.1634e-07 au
i 2.543954253049576 3.9236e-06 deg
node 289.4621875373668 0.00011712 deg
peri 40.63716159302481 0.00011794 deg
M 206.5591894534837 1.547e-05 deg
tp 2459580.210068110917
(2021-Dec-31.71006811)
6.0394e-05 TDB
period 1360.105070982162
3.72
9.7708e-06
2.675e-08
d
yr
n .264685433265855 1.9015e-09 deg/d
Q 2.741003719709458 1.3127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1999-07-21  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:36:29  

Additional Information
 Earth MOID = 1.05357 au 
 Jupiter MOID = 2.58294 au 
 T_jup = 3.510 
[ 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 16.2   n/a MPO453211  
diameter diameter 2.206 km 0.425 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

78921 (2003 SP108)          Discovered 2003-Sep-20 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 SP108 = 2003 SU269 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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