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58140 (1981 SN)
Classification: Main-belt Asteroid          SPK-ID: 2058140
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569124612630702 4.0849e-08  
a 2.483391511357851 9.1122e-09 au
q 2.093716437030875 1.0312e-07 au
i 5.170230370280154 3.4411e-06 deg
node 215.7834848387593 3.8721e-05 deg
peri 156.0844672205168 3.9978e-05 deg
M 5.02241557674652 9.6002e-06 deg
tp 2459180.557648818259
(2020-Nov-27.05764882)		 3.8133e-05 TDB
period 1429.440936482085
3.91		 7.8675e-06
2.154e-08		 d
yr
n .2518467121040869 1.3861e-09 deg/d
Q 2.873066585684827 1.0542e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2132  
   data-arc span      14362 days (39.32 yr)  
   first obs. used      1981-09-22  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:42:30  

Additional Information
 Earth MOID = 1.0939 au 
 Jupiter MOID = 2.60048 au 
 T_jup = 3.454 
[ 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 14.08   n/a E2021B10  
diameter diameter 4.310 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58140 (1981 SN)          Discovered 1981-Sep-22 by Mrkos, A. at Klet
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 SN = 1985 UM 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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