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181376 (2006 SJ12)
Classification: Main-belt Asteroid          SPK-ID: 2181376
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2216057271130198 3.6521e-08  
a 2.64028276110067 1.2545e-08 au
q 2.055180980042985 9.4007e-08 au
i 5.830056089470361 3.7725e-06 deg
node 149.4166929298461 5.2218e-05 deg
peri 189.3016930380137 5.3569e-05 deg
M 139.3491456558526 1.3693e-05 deg
tp 2458593.937025629422
(2019-Apr-20.43702563)
5.7471e-05 TDB
period 1567.018367752993
4.29
1.1169e-05
3.058e-08
d
yr
n .2297356606714303 1.6374e-09 deg/d
Q 3.225384542158356 1.5326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      7228 days (19.79 yr)  
   first obs. used      2001-06-30  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50703  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:29  

Additional Information
 Earth MOID = 1.04453 au 
 Jupiter MOID = 2.17281 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457800.5 (2017-Feb-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232812978224635 3.6689e-08  
q 2.049633003422878 9.4571e-08 au
tp 2457026.432984894374
(2015-Jan-03.93298489)
5.2279e-05 TDB
node 149.5399831458321 5.214e-05 deg
peri 189.0052251056385 5.346e-05 deg
i 5.835541256987338 3.7778e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      7228 days (19.79 yr)  
   first obs. used      2001-06-30  
   last obs. used      2021-04-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50703  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:29  

Additional Information
 Jupiter MOID = 2.17281 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.346056805275708E-15 -3.452784093828032E-15 6.25049241048566E-13 1.44762320494678E-14 1.029759999184211E-13 -1.7615783221956E-15
q -3.452784093828032E-15 8.943632369152173E-15 -1.490816183592957E-12 -3.545130137683289E-14 -2.285692640149106E-13 4.48617315041954E-15
tp 6.25049241048566E-13 -1.490816183592957E-12 2.733103924759676E-9 2.992942401170194E-11 6.535028035427753E-10 -3.978992691156019E-12
node 1.44762320494678E-14 -3.545130137683289E-14 2.992942401170194E-11 2.718539517593085E-9 -2.696769819323293E-9 1.828146286312465E-11
peri 1.029759999184211E-13 -2.285692640149106E-13 6.535028035427753E-10 -2.696769819323293E-9 2.857996586038708E-9 -1.916996533499985E-11
i -1.7615783221956E-15 4.48617315041954E-15 -3.978992691156019E-12 1.828146286312465E-11 -1.916996533499985E-11 1.427202849662244E-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 16.11   n/a MPCxxxxx  
diameter diameter 3.560 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181376 (2006 SJ12)          Discovered 2006-Sep-16 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2006 SJ12 = 2004 DL54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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