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173820 (2001 SJ328)
Classification: Main-belt Asteroid          SPK-ID: 2173820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182492967499609 4.7884e-08  
a 2.757644372662129 1.9133e-08 au
q 2.431554864908345 1.253e-07 au
i 3.243089214459338 4.1369e-06 deg
node 315.5776561124754 0.00011629 deg
peri 6.534320588027718 0.00011942 deg
M 78.84417844589767 2.8408e-05 deg
tp 2458834.169611792643
(2019-Dec-16.66961179)
0.00013052 TDB
period 1672.652849634841
4.58
1.7408e-05
4.766e-08
d
yr
n .2152269671968048 2.2399e-09 deg/d
Q 3.083733880415913 2.1395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      7108 days (19.46 yr)  
   first obs. used      2001-07-27  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6128  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:58:42  

Additional Information
 Earth MOID = 1.41701 au 
 Jupiter MOID = 2.20193 au 
 T_jup = 3.330 
[ 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 16.37   n/a E2021B55  
diameter diameter 3.098 km 0.932 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173820 (2001 SJ328)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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