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447252 (2005 UA255)
Classification: Main-belt Asteroid          SPK-ID: 2447252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1410322227195908 4.819e-08  
a 2.2486157090449 1.5661e-08 au
q 1.931488437556109 1.024e-07 au
i 8.34547476125077 5.1681e-06 deg
node 27.60566976499502 4.4409e-05 deg
peri 10.99896103179004 5.3448e-05 deg
M 101.9633343745475 2.9683e-05 deg
tp 2458651.670812945643
(2019-Jun-17.17081295)
0.00010042 TDB
period 1231.60455775479
3.37
1.2867e-05
3.523e-08
d
yr
n .2923016139663193 3.0538e-09 deg/d
Q 2.565742980533691 1.787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      5243 days (14.35 yr)  
   first obs. used      2005-09-23  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:08:34  

Additional Information
 Earth MOID = .939293 au 
 Jupiter MOID = 2.85429 au 
 T_jup = 3.602 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457791.5 (2017-Feb-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404592965785559 4.8292e-08  
q 1.933083387837931 1.0261e-07 au
tp 2457418.275522371048
(2016-Jan-30.77552237)
9.7908e-05 TDB
node 27.62597735572968 4.4379e-05 deg
peri 10.61642522098708 5.3519e-05 deg
i 8.348700985537844 5.1711e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      5243 days (14.35 yr)  
   first obs. used      2005-09-23  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:08:34  

Additional Information
 Jupiter MOID = 2.85429 au 
 T_jup = 3.602 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.332105964176882E-15 -4.922135422073807E-15 -8.879281011249116E-13 -1.373947936212607E-14 -2.72766290141615E-13 -1.712921283709117E-15
q -4.922135422073807E-15 1.052832835764707E-14 2.24631487209734E-12 3.549873798234269E-14 6.978563465987411E-13 2.805609614769465E-15
tp -8.879281011249116E-13 2.24631487209734E-12 9.585952292003746E-9 1.008365442487601E-10 2.97218455428326E-9 -1.796357257226002E-11
node -1.373947936212607E-14 3.549873798234269E-14 1.008365442487601E-10 1.969493461161568E-9 -1.916022936873627E-9 -6.357109717730337E-11
peri -2.72766290141615E-13 6.978563465987411E-13 2.97218455428326E-9 -1.916022936873627E-9 2.864321299005134E-9 5.725315897626495E-11
i -1.712921283709117E-15 2.805609614769465E-15 -1.796357257226002E-11 -6.357109717730337E-11 5.725315897626495E-11 2.674064464426074E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO456118  

447252 (2005 UA255)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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