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78911 (2003 SY97)
Classification: Main-belt Asteroid          SPK-ID: 2078911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0389855352603846 4.4692e-08  
a 2.713871711673224 2.0881e-08 au
q 2.608069970365627 1.3007e-07 au
i 13.97412304509407 5.748e-06 deg
node 305.2060943905779 2.0404e-05 deg
peri 101.786301226263 0.00010004 deg
M 230.9472485457601 0.00010192 deg
tp 2459585.892515654885
(2022-Jan-06.39251565)
0.00046655 TDB
period 1632.985761721511
4.47
1.8847e-05
5.16e-08
d
yr
n .2204550758730953 2.5444e-09 deg/d
Q 2.819673452980821 2.1695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      7956 days (21.78 yr)  
   first obs. used      1998-09-09  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57406  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:04  

Additional Information
 Earth MOID = 1.6615 au 
 Jupiter MOID = 2.35746 au 
 T_jup = 3.318 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO436333  
diameter diameter 3.200 km 0.871 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78911 (2003 SY97)          Discovered 2003-Sep-19 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2003 SY97 = 2001 DN90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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