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385718 (2005 UA154)
Classification: Main-belt Asteroid          SPK-ID: 2385718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647997849172178 5.4635e-08  
a 2.432519529659809 1.3506e-08 au
q 2.031640834364941 1.3588e-07 au
i 1.943695907327696 7.1124e-06 deg
node 37.89478589171068 0.00021301 deg
peri 19.22047123927965 0.00021517 deg
M 40.69823517256734 2.7973e-05 deg
tp 2459239.840763115512
(2021-Jan-25.34076312)
0.00010749 TDB
period 1385.743756191918
3.79
1.1541e-05
3.16e-08
d
yr
n .2597882894232156 2.1637e-09 deg/d
Q 2.833398224954677 1.5732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7032 days (19.25 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:22  

Additional Information
 Earth MOID = 1.04332 au 
 Jupiter MOID = 2.5039 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457369.5 (2015-Dec-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660344419427816 5.518e-08  
q 2.028120127607914 1.3748e-07 au
tp 2457851.070187072019
(2017-Apr-07.57018707)
0.00010417 TDB
node 38.00222363882764 0.00021229 deg
peri 18.49146776564837 0.00021441 deg
i 1.948209082494091 7.1235e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7032 days (19.25 yr)  
   first obs. used      2001-09-11  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:22  

Additional Information
 Jupiter MOID = 2.5039 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.044777850427991E-15 -7.562046993053796E-15 -1.662509151079361E-12 -2.961989586362109E-14 -3.965434864270468E-13 -9.73769382975151E-16
q -7.562046993053796E-15 1.890145347066954E-14 4.149234005627513E-12 7.02667723988854E-14 9.814910405557836E-13 2.588326611066507E-15
tp -1.662509151079361E-12 4.149234005627513E-12 1.085150745482841E-8 8.135906785299386E-11 3.183232124714926E-9 -1.601369127725415E-13
node -2.961989586362109E-14 7.02667723988854E-14 8.135906785299386E-11 4.506806292016225E-8 -4.501538426736194E-8 -5.741079467455664E-10
peri -3.965434864270468E-13 9.814910405557836E-13 3.183232124714926E-9 -4.501538426736194E-8 4.597103348490722E-8 5.736683590274813E-10
i -9.73769382975151E-16 2.588326611066507E-15 -1.601369127725415E-13 -5.741079467455664E-10 5.736683590274813E-10 5.074495697019122E-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 18.15   n/a MPCxxxxx  

385718 (2005 UA154)          Discovered 2005-Oct-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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