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442327 (2011 SO144)
Classification: Main-belt Asteroid          SPK-ID: 2442327
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508022332383232 6.1983e-08  
a 2.800467502326652 4.7883e-08 au
q 2.378150748864444 1.671e-07 au
i 8.867910674747872 9.16e-06 deg
node 20.90754079145326 4.1837e-05 deg
peri 60.67219602548016 5.1269e-05 deg
M 248.3328114703638 2.8758e-05 deg
tp 2459531.466735716123
(2021-Nov-12.96673572)
0.00014048 TDB
period 1711.765357171807
4.69
4.3902e-05
1.202e-07
d
yr
n .2103091983324134 5.3939e-09 deg/d
Q 3.22278425578886 5.5104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      3757 days (10.29 yr)  
   first obs. used      2007-12-30  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:20:21  

Additional Information
 Earth MOID = 1.40828 au 
 Jupiter MOID = 2.0943 au 
 T_jup = 3.291 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457203.5 (2015-Jun-30.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514613782352487 6.2834e-08  
q 2.375837631186684 1.6995e-07 au
tp 2457811.593603019554
(2017-Feb-27.09360302)
0.00013118 TDB
node 21.21872615998856 4.1646e-05 deg
peri 58.98735780003473 5.1106e-05 deg
i 8.89321470486273 9.1776e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      3757 days (10.29 yr)  
   first obs. used      2007-12-30  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:20:21  

Additional Information
 Jupiter MOID = 2.0943 au 
 T_jup = 3.291 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.948118072634079E-15 -1.040934306826667E-14 -2.027781151720135E-12 1.353263724350064E-14 -5.083946601992587E-13 3.194754991541288E-15
q -1.040934306826667E-14 2.888337392346345E-14 5.993977712118677E-12 -3.914146508333967E-14 1.358486277589472E-12 -5.503249341876297E-15
tp -2.027781151720135E-12 5.993977712118677E-12 1.720828260638449E-8 -4.511411332107586E-11 3.890383705207456E-9 -1.314205852019564E-12
node 1.353263724350064E-14 -3.914146508333967E-14 -4.511411332107586E-11 1.734423284046811E-9 -1.723219573959194E-9 -3.336134734388478E-11
peri -5.083946601992587E-13 1.358486277589472E-12 3.890383705207456E-9 -1.723219573959194E-9 2.611812654393998E-9 3.24070302923421E-11
i 3.194754991541288E-15 -5.503249341876297E-15 -1.314205852019564E-12 -3.336134734388478E-11 3.24070302923421E-11 8.42288106449928E-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 16.8   n/a MPO437720  

442327 (2011 SO144)          Discovered 2007-Dec-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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