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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571752873248158 4.1782e-08  
a 2.484296664437072 1.1437e-08 au
q 2.093826622404094 1.0641e-07 au
i 5.169691717108713 4.1644e-06 deg
node 215.7944701342282 4.3887e-05 deg
peri 156.0029147483006 4.5663e-05 deg
M 314.7312502719167 1.5134e-05 deg
tp 2459180.345514418009
(2020-Nov-26.84551442)		 6.0618e-05 TDB
period 1430.222517285863
3.92		 9.8765e-06
2.704e-08		 d
yr
n .2517090841802525 1.7382e-09 deg/d
Q 2.87476670647005 1.3235e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1581  
   data-arc span      14140 days (38.71 yr)  
   first obs. used      1981-09-22  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:33:11  

Additional Information
 Earth MOID = 1.09545 au 
 Jupiter MOID = 2.59773 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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