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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295864698019991 6.1073e-08  
a 3.154222469181605 2.2891e-08 au
q 2.745477914430215 1.9449e-07 au
i 20.64869404590729 6.8904e-06 deg
node 327.2709890317236 1.0896e-05 deg
peri 14.13379454221854 1.9541e-05 deg
M 163.7046994257902 1.6704e-05 deg
tp 2458070.044613191171
(2017-Nov-12.54461319)
9.2587e-05 TDB
period 2046.147364285181
5.60
2.2274e-05
6.098e-08
d
yr
n .1759404069734564 1.9153e-09 deg/d
Q 3.562967023932993 2.5857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      10232 days (28.01 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47208  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:27:59  

Additional Information
 Earth MOID = 1.73953 au 
 Jupiter MOID = 1.82897 au 
 T_jup = 3.094 
[ show covariance matrix ]

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

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