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442332 (2011 SK166)
Classification: Main-belt Asteroid          SPK-ID: 2442332
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262194376738311 1.6073e-07  
a 2.705697443575991 1.3221e-07 au
q 2.364185833732307 5.1815e-07 au
i 4.235094089464551 8.618e-06 deg
node 218.18694422393 0.00018404 deg
peri 127.5190324492772 0.00018763 deg
M 10.94746539919138 4.4115e-05 deg
tp 2458951.065703931632
(2020-Apr-11.56570393)
0.00019698 TDB
period 1625.613412391049
4.45
0.00011915
3.262e-07
d
yr
n .2214548657484873 1.6232e-08 deg/d
Q 3.047209053419675 1.489e-07 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      2367 days (6.48 yr)  
   first obs. used      2011-09-26  
   last obs. used      2018-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55643  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:28:03  

Additional Information
 Earth MOID = 1.36013 au 
 Jupiter MOID = 2.36761 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285362504398834 1.6041e-07  
q 2.357432768878267 5.1823e-07 au
tp 2457327.058035809056
(2015-Oct-31.55803581)
0.00015327 TDB
node 218.2461598534932 0.00018382 deg
peri 127.9988262258397 0.00018725 deg
i 4.237585649399436 8.6313e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      2367 days (6.48 yr)  
   first obs. used      2011-09-26  
   last obs. used      2018-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55643  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:28:03  

Additional Information
 Jupiter MOID = 2.36761 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.573006685008589E-14 -8.196035746403723E-14 -6.32624208315693E-12 -1.649941571676118E-13 -3.60292249907764E-13 -5.264576872759178E-14
q -8.196035746403723E-14 2.685640282373962E-13 1.75150774862599E-11 5.476520495308473E-13 -3.301665272773764E-14 1.747922646392163E-13
tp -6.32624208315693E-12 1.75150774862599E-11 2.34916891798081E-8 4.738157292147109E-11 5.570213790289693E-9 1.290667083453525E-11
node -1.649941571676118E-13 5.476520495308473E-13 4.738157292147109E-11 3.378861058327435E-8 -3.369231958666863E-8 -4.745202713981312E-10
peri -3.60292249907764E-13 -3.301665272773764E-14 5.570213790289693E-9 -3.369231958666863E-8 3.506413785676589E-8 4.740623998986076E-10
i -5.264576872759178E-14 1.747922646392163E-13 1.290667083453525E-11 -4.745202713981312E-10 4.740623998986076E-10 7.449851475394571E-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 17.2   n/a MPO440831  

442332 (2011 SK166)          Discovered 2011-Sep-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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