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243566 (1995 SA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2243566
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 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6411117162260742 2.2097e-08  
a 2.458583596839829 1.9305e-08 au
q .8823568475845717 5.3587e-08 au
i 19.93880992351864 1.3317e-05 deg
node 170.341374363152 1.409e-05 deg
peri 52.82640884301466 1.5709e-05 deg
M 208.26391516127 7.2333e-06 deg
tp 2459593.988447673035
(2022-Jan-14.48844767)
3.4746e-05 TDB
period 1408.075352605632
3.86
1.6584e-05
4.54e-08
d
yr
n .2556681354686189 3.0112e-09 deg/d
Q 4.034810346095086 3.1681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      524  
   data-arc span      10075 days (27.58 yr)  
   first obs. used      1991-03-07  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40368  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-07 06:49:13  

Additional Information
 Earth MOID = .0336722 au 
 Jupiter MOID = 1.39877 au 
 T_jup = 3.108 
[ 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 17.3   n/a MPO433596  
diameter diameter 0.881 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 14.37 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:
[Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.]
geometric albedo albedo 0.091   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

243566 (1995 SA)          Discovered 1995-Sep-17 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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