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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739686291954462 3.3441e-08  
a 2.378912056193931 8.8089e-09 au
q 1.965055986801353 8.0494e-08 au
i 2.659183205382994 4.1655e-06 deg
node 165.9388368681393 7.9136e-05 deg
peri 211.0513453955248 8.0004e-05 deg
M 151.472448890706 1.1987e-05 deg
tp 2458436.606415131499
(2018-Nov-14.10641513)
4.3828e-05 TDB
period 1340.188872889585
3.67
7.4439e-06
2.038e-08
d
yr
n .2686188546124869 1.492e-09 deg/d
Q 2.79276812558651 1.0341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      12631 days (34.58 yr)  
   first obs. used      1985-09-18  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:43:42  

Additional Information
 Earth MOID = .967071 au 
 Jupiter MOID = 2.66878 au 
 T_jup = 3.518 
[ 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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