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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571752877033837 4.1805e-08  
a 2.484296666039524 1.1663e-08 au
q 2.093826622814205 1.0643e-07 au
i 5.169691365818647 4.244e-06 deg
node 215.7944705310944 4.3897e-05 deg
peri 156.0029160484157 4.5731e-05 deg
M 314.7312477620696 1.5538e-05 deg
tp 2459180.345524563239
(2020-Nov-26.84552456)
6.2264e-05 TDB
period 1430.222518669673
3.92
1.0072e-05
2.758e-08
d
yr
n .2517090839367118 1.7726e-09 deg/d
Q 2.874766709264843 1.3496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1519  
   data-arc span      13801 days (37.79 yr)  
   first obs. used      1981-09-22  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52539  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:23:43  

Additional Information
 Earth MOID = 1.09545 au 
 Jupiter MOID = 2.59773 au 
 T_jup = 3.454 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457044.5 (2015-Jan-22.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1585135917834805 4.1705e-08  
q 2.089285316699956 1.062e-07 au
tp 2457752.108602089970
(2016-Dec-29.60860209)
5.8353e-05 TDB
node 215.8583301478842 4.3839e-05 deg
peri 156.3487241493933 4.565e-05 deg
i 5.174153080241923 4.2481e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1519  
   data-arc span      13801 days (37.79 yr)  
   first obs. used      1981-09-22  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52539  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:23:43  

Additional Information
 Jupiter MOID = 2.59773 au 
 T_jup = 3.454 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.739275191478934E-15 -4.411776328804443E-15 -7.497184812554653E-13 -3.419701145516451E-15 -1.375317146701761E-13 -4.817453167021043E-16
q -4.411776328804443E-15 1.127915123086763E-14 2.011942617382805E-12 8.319151385228287E-15 3.636768271723618E-13 1.476357532397704E-15
tp -7.497184812554653E-13 2.011942617382805E-12 3.405115755420921E-9 1.042471578216077E-11 7.564535022875089E-10 1.259675080895112E-13
node -3.419701145516451E-15 8.319151385228287E-15 1.042471578216077E-11 1.92182978971223E-9 -1.911246788278083E-9 -3.038895335167312E-11
peri -1.375317146701761E-13 3.636768271723618E-13 7.564535022875089E-10 -1.911246788278083E-9 2.083914445150157E-9 3.02902103316758E-11
i -4.817453167021043E-16 1.476357532397704E-15 1.259675080895112E-13 -3.038895335167312E-11 3.02902103316758E-11 1.804661648282998E-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 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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