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78901 (2003 ST66)
Classification: Main-belt Asteroid          SPK-ID: 2078901
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2288628896412033 3.771e-08  
a 3.120786613647462 1.7199e-08 au
q 2.406554371294518 1.2006e-07 au
i 11.45130424462207 4.4861e-06 deg
node 198.0372872657211 2.0054e-05 deg
peri 177.2057507290107 2.2186e-05 deg
M 8.238617663907482 9.4419e-06 deg
tp 2458954.416401263928
(2020-Apr-14.91640126)
5.2687e-05 TDB
period 2013.698926418862
5.51
1.6647e-05
4.558e-08
d
yr
n .1787754839002768 1.4779e-09 deg/d
Q 3.835018856000405 2.1135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      10204 days (27.94 yr)  
   first obs. used      1992-11-23  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:06  

Additional Information
 Earth MOID = 1.408 au 
 Jupiter MOID = 1.63115 au 
 T_jup = 3.145 
[ 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 14.3   n/a MPO449496  
diameter diameter 5.102 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.118   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78901 (2003 ST66)          Discovered 2003-Sep-19 by Crni Vrh at Crni Vrh
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 ST66 = 1998 XH90 = 2001 FE137 = 2002 LU40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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