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173802 (2001 SN228)
Classification: Main-belt Asteroid          SPK-ID: 2173802
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05185075302372665 6.8326e-08  
a 2.949455768646351 2.7686e-08 au
q 2.796524266031863 1.9223e-07 au
i 12.23263976813493 7.5765e-06 deg
node 24.04310860477305 2.3101e-05 deg
peri 26.69338469986571 7.1265e-05 deg
M 215.8440529879705 6.6376e-05 deg
tp 2459741.368826038186
(2022-Jun-10.86882604)
0.00034338 TDB
period 1850.16839680912
5.07
2.6051e-05
7.132e-08
d
yr
n .1945768831749971 2.7397e-09 deg/d
Q 3.102387271260839 2.9122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1996-10-16  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55229  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:24  

Additional Information
 Earth MOID = 1.80967 au 
 Jupiter MOID = 2.1248 au 
 T_jup = 3.234 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456623.5 (2013-Nov-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05407129196066505 6.7534e-08  
q 2.786844076847967 1.8908e-07 au
tp 2456050.725625051320
(2012-May-03.22562505)
0.00032459 TDB
node 24.09375180483647 2.3082e-05 deg
peri 27.808930702159 6.9163e-05 deg
i 12.24296401768085 7.5813e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1996-10-16  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55229  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:24  

Additional Information
 Jupiter MOID = 2.1248 au 
 T_jup = 3.234 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.560904231226293E-15 -1.266554883456746E-14 -1.002750720148395E-11 9.471424408219197E-17 -2.058377369650791E-12 -5.175193850456965E-15
q -1.266554883456746E-14 3.575164815098546E-14 2.978433777387206E-11 -1.204925084212981E-16 6.131810509588358E-12 1.512841665315448E-14
tp -1.002750720148395E-11 2.978433777387206E-11 1.053597648397271E-7 6.951231615864255E-11 2.117537425765489E-8 -3.497108488150051E-11
node 9.471424408219197E-17 -1.204925084212981E-16 6.951231615864255E-11 5.327857253578541E-10 -5.067287631146803E-10 -3.126294299443923E-11
peri -2.058377369650791E-12 6.131810509588358E-12 2.117537425765489E-8 -5.067287631146803E-10 4.783498711872568E-9 2.389468047328306E-11
i -5.175193850456965E-15 1.512841665315448E-14 -3.497108488150051E-11 -3.126294299443923E-11 2.389468047328306E-11 5.747560954430697E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO254222  
diameter diameter 5.352 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173802 (2001 SN228)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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