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78958 (2003 SU228)
Classification: Main-belt Asteroid          SPK-ID: 2078958
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1263874014620655 3.823e-08  
a 3.086238568079674 2.2254e-08 au
q 2.696176895168078 1.2406e-07 au
i 6.993413898145821 5.7122e-06 deg
node 218.3729579211836 3.6945e-05 deg
peri 227.8486185275924 4.5954e-05 deg
M 339.3161456988486 2.5407e-05 deg
tp 2459114.281495423492
(2020-Sep-21.78149542)
0.00013998 TDB
period 1980.353262794792
5.42
2.142e-05
5.864e-08
d
yr
n .1817857484133647 1.9662e-09 deg/d
Q 3.476300240991271 2.5067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      844  
   data-arc span      7990 days (21.88 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:54  

Additional Information
 Earth MOID = 1.71835 au 
 Jupiter MOID = 1.8002 au 
 T_jup = 3.203 
[ 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 14.4   n/a MPO502632  
diameter diameter 5.700 km 0.445 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.104   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78958 (2003 SU228)          Discovered 2003-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 SU228 = 1998 XJ90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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