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58621 (1997 UR23)
Classification: Main-belt Asteroid          SPK-ID: 2058621
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1825188332502103 3.5904e-08  
a 2.386626981459734 8.1453e-09 au
q 1.951022609400232 8.4855e-08 au
i 2.598788270101082 4.1824e-06 deg
node 2.915769896093941 7.0138e-05 deg
peri 351.1219026169264 7.0801e-05 deg
M 79.17724956623515 8.5472e-06 deg
tp 2458704.308114350100
(2019-Aug-08.80811435)
3.1989e-05 TDB
period 1346.713600410736
3.69
6.8943e-06
1.888e-08
d
yr
n .2673174161827749 1.3685e-09 deg/d
Q 2.822231353519236 9.632e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1004  
   data-arc span      12413 days (33.98 yr)  
   first obs. used      1986-10-31  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:23  

Additional Information
 Earth MOID = .946106 au 
 Jupiter MOID = 2.61324 au 
 T_jup = 3.511 
[ 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 15.5   n/a MPO432140  
diameter diameter 4.481 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58621 (1997 UR23)          Discovered 1997-Oct-27 by Skiff, B. A. at Anderson Mesa
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 UR23 = 1986 UD4 = 1995 BZ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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