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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809272241598179 1.2505e-07  
a 2.712592670363676 9.8916e-08 au
q 2.221810808238508 4.0299e-07 au
i 5.914479891832384 5.7696e-06 deg
node 90.15661159737731 9.8689e-05 deg
peri 250.7684193968598 0.00010302 deg
M 298.2844765069182 2.0034e-05 deg
tp 2458880.248147416455
(2020-Jan-31.74814742)
9.1477e-05 TDB
period 1631.831464270303
4.47
8.9258e-05
2.444e-07
d
yr
n .2206110176708593 1.2067e-08 deg/d
Q 3.203374532488843 1.1681e-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 = 1.22088 au 
 Jupiter MOID = 2.20635 au 
 T_jup = 3.331 
[ 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 = 2.20635 au 
 T_jup = 3.331 
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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