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129981 (1999 UZ44)
Classification: Main-belt Asteroid          SPK-ID: 2129981
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641782122782488 4.2508e-08  
a 2.525057169886387 1.1955e-08 au
q 2.110497797834065 1.0883e-07 au
i 2.777237424697576 6.4391e-06 deg
node 181.0062642074466 0.00014579 deg
peri 160.9944442828665 0.00014876 deg
M 96.59182629781307 3.003e-05 deg
tp 2458607.273183994965
(2019-May-03.77318399)
0.00012257 TDB
period 1465.565557538461
4.01
1.0408e-05
2.85e-08
d
yr
n .2456389604328924 1.7445e-09 deg/d
Q 2.939616541938708 1.3918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      7416 days (20.30 yr)  
   first obs. used      1999-10-07  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:06:37  

Additional Information
 Earth MOID = 1.10262 au 
 Jupiter MOID = 2.45925 au 
 T_jup = 3.433 
[ 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 16.3   n/a MPO453778  

129981 (1999 UZ44)          Discovered 1999-Oct-30 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 UZ44 = 2002 LK57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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