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78609 (2002 SY53)
Classification: Main-belt Asteroid          SPK-ID: 2078609
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1524094660027862 3.9808e-08  
a 2.63620416991874 1.0433e-08 au
q 2.234421700107107 1.0596e-07 au
i 13.91232640686941 3.5142e-06 deg
node 144.9836257146482 1.8144e-05 deg
peri 244.1711552273183 2.1461e-05 deg
M 40.12502031774812 1.0753e-05 deg
tp 2458826.247203981075
(2019-Dec-08.74720398)
4.6561e-05 TDB
period 1563.388780118971
4.28
9.2809e-06
2.541e-08
d
yr
n .2302690185435542 1.367e-09 deg/d
Q 3.037986639730374 1.2023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1143  
   data-arc span      10836 days (29.67 yr)  
   first obs. used      1991-02-21  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:13  

Additional Information
 Earth MOID = 1.27501 au 
 Jupiter MOID = 2.52615 au 
 T_jup = 3.339 
[ 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 14.8   n/a MPO502630  
diameter diameter 4.943 km 0.963 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78609 (2002 SY53)          Discovered 2002-Sep-21 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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