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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09482284134663312 3.7672e-08  
a 2.646425385825122 1.4505e-08 au
q 2.395483811329325 1.0283e-07 au
i 6.907818566160035 3.9026e-06 deg
node 78.96007795100346 4.4593e-05 deg
peri 347.6469220831594 5.3592e-05 deg
M 250.2681636440883 3.0254e-05 deg
tp 2459079.811726262781
(2020-Aug-18.31172626)
0.00013343 TDB
period 1572.49005562008
4.31
1.2928e-05
3.539e-08
d
yr
n .2289362649470246 1.8821e-09 deg/d
Q 2.89736696032092 1.588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      7696 days (21.07 yr)  
   first obs. used      1998-10-18  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49592  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:46:04  

Additional Information
 Earth MOID = 1.40971 au 
 Jupiter MOID = 2.35422 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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