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37559 (1985 UR)
Classification: Main-belt Asteroid          SPK-ID: 2037559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1996542401181044 3.3429e-08  
a 2.442002650068207 8.3694e-09 au
q 1.954446466602442 8.4281e-08 au
i 12.80910002421614 4.206e-06 deg
node 192.6905139211065 1.7196e-05 deg
peri 211.0581101513725 2.0655e-05 deg
M 13.38758335477822 1.2658e-05 deg
tp 2458948.665691359125
(2020-Apr-09.16569136)
4.8902e-05 TDB
period 1393.855083192066
3.82
7.1657e-06
1.962e-08
d
yr
n .2582764911080745 1.3278e-09 deg/d
Q 2.929558833533972 1.004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1326  
   data-arc span      12820 days (35.10 yr)  
   first obs. used      1985-09-21  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:30:17  

Additional Information
 Earth MOID = .972272 au 
 Jupiter MOID = 2.52258 au 
 T_jup = 3.440 
[ 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 14.4   n/a MPO449230  
diameter diameter 6.195 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37559 (1985 UR)          Discovered 1985-Oct-20 by Mrkos, A. at Klet
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1985 UR = 1999 JC91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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