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447238 (2005 US191)
Classification: Main-belt Asteroid          SPK-ID: 2447238
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1210249874519295 8.9027e-08  
a 3.099588342752422 4.931e-08 au
q 2.724460702464663 2.6791e-07 au
i 6.098301717253491 9.8922e-06 deg
node 42.39121376444729 7.8553e-05 deg
peri 25.31271586356548 9.2153e-05 deg
M 159.573473216113 4.272e-05 deg
tp 2457716.987593688770
(2016-Nov-24.48759369)
0.00023277 TDB
period 1993.216415370509
5.46
4.7564e-05
1.302e-07
d
yr
n .180612600430085 4.31e-09 deg/d
Q 3.474715983040181 5.5278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4526 days (12.39 yr)  
   first obs. used      2005-10-27  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:43:01  

Additional Information
 Earth MOID = 1.73947 au 
 Jupiter MOID = 1.84271 au 
 T_jup = 3.202 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457129.5 (2015-Apr-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228632015190785 8.9294e-08  
q 2.716355943998568 2.6995e-07 au
tp 2457715.851212255624
(2016-Nov-23.35121226)
0.00022738 TDB
node 42.39500905908631 7.8532e-05 deg
peri 24.8354332796759 9.1604e-05 deg
i 6.101911763623653 9.8944e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4526 days (12.39 yr)  
   first obs. used      2005-10-27  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:43:01  

Additional Information
 Jupiter MOID = 1.84271 au 
 T_jup = 3.202 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.973397661651025E-15 -2.380426996242841E-14 -1.366703189657452E-12 1.214574744982044E-13 -4.613951231759839E-13 -8.635799013191287E-15
q -2.380426996242841E-14 7.287107907502424E-14 5.1592700452431E-12 -3.70989819055873E-13 1.475224415877271E-12 2.662581505945592E-14
tp -1.366703189657452E-12 5.1592700452431E-12 5.170250420321176E-8 -4.206330152652957E-11 1.077069788209994E-8 7.228990077547315E-12
node 1.214574744982044E-13 -3.70989819055873E-13 -4.206330152652957E-11 6.167213439168044E-9 -6.140386833999398E-9 8.510997220671819E-11
peri -4.613951231759839E-13 1.475224415877271E-12 1.077069788209994E-8 -6.140386833999398E-9 8.39133890166705E-9 -8.33609564402973E-11
i -8.635799013191287E-15 2.662581505945592E-14 7.228990077547315E-12 8.510997220671819E-11 -8.33609564402973E-11 9.78993579413154E-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 16.8   n/a MPO437739  

447238 (2005 US191)          Discovered 2005-Oct-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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