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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581766695021114 4.2982e-08  
a 2.48356171456947 1.1626e-08 au
q 2.090720194055918 1.0898e-07 au
i 5.173941748542708 4.3206e-06 deg
node 215.851547343343 5.0651e-05 deg
peri 156.0468882920113 5.2471e-05 deg
M 214.0278439360486 1.5852e-05 deg
tp 2459180.166741544479
(2020-Nov-26.66674154)		 6.4307e-05 TDB
period 1429.587892533341
3.91		 1.0038e-05
2.748e-08		 d
yr
n .2518208232458181 1.7683e-09 deg/d
Q 2.876403235083022 1.3465e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1427  
   data-arc span      13745 days (37.63 yr)  
   first obs. used      1981-09-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5259  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:12:39  

Additional Information
 Earth MOID = 1.09156 au 
 Jupiter MOID = 2.5929 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 14.0   n/a MPO337718  
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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