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39511 (1985 SH1)
Classification: Main-belt Asteroid          SPK-ID: 2039511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1737503362181715 3.4281e-08  
a 2.379402416949218 9.3197e-09 au
q 1.965980447005962 8.3073e-08 au
i 2.658765892271245 4.1759e-06 deg
node 165.9450103030718 8.6323e-05 deg
peri 211.1099010158372 8.7234e-05 deg
M 43.99326032925865 1.2137e-05 deg
tp 2458436.673587039839
(2018-Nov-14.17358704)
4.5065e-05 TDB
period 1340.603270233961
3.67
7.8763e-06
2.156e-08
d
yr
n .2685358211435462 1.5777e-09 deg/d
Q 2.792824386892475 1.0939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      12161 days (33.30 yr)  
   first obs. used      1985-09-18  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:07:03  

Additional Information
 Earth MOID = .967222 au 
 Jupiter MOID = 2.66562 au 
 T_jup = 3.517 
[ 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 15.6   n/a MPO309459  
diameter diameter 5.110 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39511 (1985 SH1)          Discovered 1985-Sep-18 by Debehogne, H. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 SH1 = 1996 TD39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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