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(2013 YS2)
Classification: Amor [NEO]          SPK-ID: 3655400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2963174885799138 2.9059e-08  
a 1.451317634520539 1.0104e-09 au
q 1.021266837927672 4.2212e-08 au
i 2.933219581302299 4.2736e-06 deg
node 261.8407078668828 2.6012e-05 deg
peri 216.1999128039496 3.6463e-05 deg
M 229.4027694580508 1.2271e-05 deg
tp 2459232.172028782817
(2021-Jan-17.67202878)
2.1734e-05 TDB
period 638.6194409767705
1.75
6.669e-07
1.826e-09
d
yr
n .5637160050269983 5.8868e-10 deg/d
Q 1.881368431113407 1.3098e-09 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      2626 days (7.19 yr)  
   first obs. used      2013-11-29  
   last obs. used      2021-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-07 05:22:40  

Additional Information
 Earth MOID = .0468787 au 
 Jupiter MOID = 3.21422 au 
 T_jup = 4.593 
[ 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 23.7   n/a E2021C77  
rotation period rot_per 2.4 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:
[Thirouin, A.; Moskovitz, N.A.; Binzel, R.P.; Christensen, E.J.; et al. (2018) Astrophys. J. Supp. Series 2391, A4.]

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