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(2008 SA)
Classification: Apollo [NEO]          SPK-ID: 3427440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .332801436187513 0.00013992  
a 1.326254268996194 0.00023376 au
q .8848749435244405 2.9614e-05 au
i 2.641887470607073 0.0019652 deg
node 353.9908181204859 0.031626 deg
peri 64.54218447882683 0.033964 deg
M 333.3248851504184 0.76872 deg
tp 2459241.837329468992
(2021-Jan-27.33732947)
1.2022 TDB
period 557.8772085050892
1.53
0.14749
0.0004038
d
yr
n .6453032934696702 0.00017061 deg/d
Q 1.767633594467947 0.00031156 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      4 days  
   first obs. used      2008-09-20  
   last obs. used      2008-09-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .47523  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:51:07  

Additional Information
 Earth MOID = .00486059 au 
 Jupiter MOID = 3.57844 au 
 T_jup = 4.875 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.0   n/a MPO147478  
rotation period rot_per 0.1297 h n/a LCDB (Rev. 2020-October); 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:
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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