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74322 (1998 UN26)
Classification: Main-belt Asteroid          SPK-ID: 2074322
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09507917984085576 3.747e-08  
a 2.646445094101377 1.4312e-08 au
q 2.394823265060362 1.025e-07 au
i 6.907740081568487 3.8552e-06 deg
node 78.96044466563045 4.4594e-05 deg
peri 347.6897243882235 5.354e-05 deg
M 341.8273861394137 3.0412e-05 deg
tp 2459079.879371660146
(2020-Aug-18.37937166)
0.00013306 TDB
period 1572.507621461698
4.31
1.2757e-05
3.493e-08
d
yr
n .228933707593333 1.8572e-09 deg/d
Q 2.898066923142392 1.5673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1998-10-18  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:25:10  

Additional Information
 Earth MOID = 1.40931 au 
 Jupiter MOID = 2.35277 au 
 T_jup = 3.376 
[ 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 15.1   n/a MPO449469  
diameter diameter 5.666 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74322 (1998 UN26)          Discovered 1998-Oct-18 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UN26 = 2000 ES82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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