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85169 (1989 SN2)
Classification: Main-belt Asteroid          SPK-ID: 2085169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2379398445691746 3.9984e-08  
a 3.159226049028581 2.0469e-08 au
q 2.407520293963833 1.2868e-07 au
i 14.56576610843709 5.4377e-06 deg
node 175.3017879717229 1.684e-05 deg
peri 236.753452382159 2.045e-05 deg
M 72.10510846579561 1.0535e-05 deg
tp 2458189.697561305067
(2018-Mar-12.19756131)
5.864e-05 TDB
period 2051.018035710046
5.62
1.9933e-05
5.457e-08
d
yr
n .1755225910899272 1.7058e-09 deg/d
Q 3.910931804093329 2.5339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      10807 days (29.59 yr)  
   first obs. used      1989-09-26  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58544  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:16:11  

Additional Information
 Earth MOID = 1.45065 au 
 Jupiter MOID = 1.70757 au 
 T_jup = 3.112 
[ 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 14.5   n/a MPO257389  
diameter diameter 6.928 km 1.857 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85169 (1989 SN2)          Discovered 1989-Sep-26 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1989 SN2 = 2000 QA169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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