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34421 (2000 SA12)
Classification: Main-belt Asteroid          SPK-ID: 2034421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295864707798373 6.0913e-08  
a 3.154222468866178 2.262e-08 au
q 2.745477911071344 1.9375e-07 au
i 20.64869374123467 6.8782e-06 deg
node 327.2709891455192 1.0581e-05 deg
peri 14.13379441468951 1.9181e-05 deg
M 163.7046994812301 1.6629e-05 deg
tp 2458070.044613015635
(2017-Nov-12.54461302)
9.1984e-05 TDB
period 2046.147363978254
5.60
2.201e-05
6.026e-08
d
yr
n .1759404069998479 1.8926e-09 deg/d
Q 3.562967026661011 2.5551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1307  
   data-arc span      10312 days (28.23 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:48:10  

Additional Information
 Earth MOID = 1.73953 au 
 Jupiter MOID = 1.82897 au 
 T_jup = 3.094 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457328.5 (2015-Nov-02.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282833579901776 6.0848e-08  
q 2.749429342772659 1.9285e-07 au
tp 2458069.718446151599
(2017-Nov-12.21844615)
9.2973e-05 TDB
node 327.303068862002 1.0581e-05 deg
peri 14.06067478948659 1.9353e-05 deg
i 20.64758469406431 6.8777e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1307  
   data-arc span      10312 days (28.23 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:48:10  

Additional Information
 Jupiter MOID = 1.82897 au 
 T_jup = 3.094 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.70243850153452E-15 -1.167348001911479E-14 -1.605472794633009E-12 8.742332021319098E-15 -3.745432200160108E-13 1.928393125277818E-15
q -1.167348001911479E-14 3.719005543627439E-14 5.403365677096908E-12 -2.787207601743297E-14 1.209129393626398E-12 -6.357351391245467E-15
tp -1.605472794633009E-12 5.403365677096908E-12 8.644038143668234E-9 -1.234742256789121E-11 1.502679101852574E-9 -1.001500035913884E-11
node 8.742332021319098E-15 -2.787207601743297E-14 -1.234742256789121E-11 1.119597601955188E-10 -1.06704030305525E-10 -6.735104778614503E-12
peri -3.745432200160108E-13 1.209129393626398E-12 1.502679101852574E-9 -1.06704030305525E-10 3.74543963616793E-10 4.535018903856112E-12
i 1.928393125277818E-15 -6.357351391245467E-15 -1.001500035913884E-11 -6.735104778614503E-12 4.535018903856112E-12 4.730228794034439E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO337542  
diameter diameter 6.962 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.599 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.226   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34421 (2000 SA12)          Discovered 2000-Sep-20 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 SA12 = 2001 QM170 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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