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442440 (2011 UO162)
Classification: Main-belt Asteroid          SPK-ID: 2442440
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803056506558659 1.2544e-07  
a 2.71061250456863 9.8041e-08 au
q 2.221873753256457 4.0337e-07 au
i 5.914740974959395 5.7689e-06 deg
node 90.15569402867678 9.87e-05 deg
peri 250.8652823103609 0.00010306 deg
M 26.47963346668726 2.047e-05 deg
tp 2458880.602797074052
(2020-Feb-01.10279707)
9.1653e-05 TDB
period 1630.044959181271
4.46
8.8436e-05
2.421e-07
d
yr
n .2208528040728512 1.1982e-08 deg/d
Q 3.199351255880803 1.1572e-07 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      2338 days (6.40 yr)  
   first obs. used      2011-10-24  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:37:14  

Additional Information
 Earth MOID = 1.22187 au 
 Jupiter MOID = 2.21374 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456970.5 (2014-Nov-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1825379089836838 1.2634e-07  
q 2.215437331964937 4.0707e-07 au
tp 2457251.904300019984
(2015-Aug-17.40430002)
0.00011694 TDB
node 90.20192825467893 9.884e-05 deg
peri 251.1817589882389 0.000103 deg
i 5.912587009199472 5.7678e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      2338 days (6.40 yr)  
   first obs. used      2011-10-24  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:37:14  

Additional Information
 Jupiter MOID = 2.21374 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.596234395465616E-14 -5.098169272962227E-14 1.076224448147776E-11 4.750661907945053E-13 2.621881513650929E-12 -7.105180511423586E-14
q -5.098169272962227E-14 1.657065224372298E-13 -3.533995101459532E-11 -1.483186203483658E-12 -8.797098477514281E-12 2.325493395751652E-13
tp 1.076224448147776E-11 -3.533995101459532E-11 1.367472832894634E-8 3.118159823026293E-10 3.544909260492153E-9 -5.163428118017184E-11
node 4.750661907945053E-13 -1.483186203483658E-12 3.118159823026293E-10 9.769290607295518E-9 -9.629945024646649E-9 -1.148955979653745E-10
peri 2.621881513650929E-12 -8.797098477514281E-12 3.544909260492153E-9 -9.629945024646649E-9 1.060939886870027E-8 9.926983229991494E-11
i -7.105180511423586E-14 2.325493395751652E-13 -5.163428118017184E-11 -1.148955979653745E-10 9.926983229991494E-11 3.326744472614478E-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 17.1   n/a MPO440832  

442440 (2011 UO162)          Discovered 2011-Oct-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 UO162 = 2014 HL157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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