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74329 (1998 UU45)
Classification: Main-belt Asteroid          SPK-ID: 2074329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06164733201212109 4.2515e-08  
a 2.72848309537099 1.7789e-08 au
q 2.560279392101194 1.2082e-07 au
i 5.357865977061596 6.1258e-06 deg
node 13.03018342301527 4.7308e-05 deg
peri 301.9544020523481 6.7115e-05 deg
M 247.8425718542469 4.708e-05 deg
tp 2459113.368315075986
(2020-Sep-20.86831508)
0.00021573 TDB
period 1646.191397928789
4.51
1.6099e-05
4.408e-08
d
yr
n .2186866001443976 2.1386e-09 deg/d
Q 2.896686798640785 1.8885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1991-01-11  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:27  

Additional Information
 Earth MOID = 1.55107 au 
 Jupiter MOID = 2.28387 au 
 T_jup = 3.346 
[ 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 15.5   n/a MPO253816  
diameter diameter 4.681 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74329 (1998 UU45)          Discovered 1998-Oct-24 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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