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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06174433883904218 4.2248e-08  
a 2.731063300019128 1.6635e-08 au
q 2.562435602231874 1.2062e-07 au
i 5.354935932510529 5.3968e-06 deg
node 12.96795588238507 4.718e-05 deg
peri 301.0034550047459 6.4794e-05 deg
M 336.2346650196018 4.2807e-05 deg
tp 2459109.327215099210
(2020-Sep-16.82721510)
0.00019596 TDB
period 1648.527044454857
4.51
1.5062e-05
4.124e-08
d
yr
n .2183767631904678 1.9952e-09 deg/d
Q 2.899690997806382 1.7662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      10748 days (29.43 yr)  
   first obs. used      1991-01-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:49:17  

Additional Information
 Earth MOID = 1.554 au 
 Jupiter MOID = 2.27827 au 
 T_jup = 3.345 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456819.5 (2014-Jun-11.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06065826367094482 4.2479e-08  
q 2.563263469377151 1.2095e-07 au
tp 2457469.807607601067
(2016-Mar-22.30760760)
0.00020063 TDB
node 13.04713239555396 4.7147e-05 deg
peri 302.5775449565025 6.5239e-05 deg
i 5.358054731821387 5.3996e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      10748 days (29.43 yr)  
   first obs. used      1991-01-11  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:49:17  

Additional Information
 Jupiter MOID = 2.27827 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.804458967828994E-15 -5.098215172783204E-15 1.785691945434548E-12 -1.410652473223321E-15 4.322790125816248E-13 -1.760688637395921E-15
q -5.098215172783204E-15 1.46291016922901E-14 -5.36411358458829E-12 3.665096771190342E-15 -1.312167396678376E-12 5.300590425648883E-15
tp 1.785691945434548E-12 -5.36411358458829E-12 4.025226847489565E-8 -1.545647490713414E-11 9.060521046483953E-9 -1.132706365633151E-12
node -1.410652473223321E-15 3.665096771190342E-15 -1.545647490713414E-11 2.222829385144088E-9 -2.216099746020278E-9 1.944278294431858E-11
peri 4.322790125816248E-13 -1.312167396678376E-12 9.060521046483953E-9 -2.216099746020278E-9 4.256134608767954E-9 -1.957100348508813E-11
i -1.760688637395921E-15 5.300590425648883E-15 -1.132706365633151E-12 1.944278294431858E-11 -1.957100348508813E-11 2.915605033031323E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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