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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2963174810405061 4.0939e-08  
a 1.451317636253248 2.8277e-09 au
q 1.021266850089024 5.938e-08 au
i 2.933218443483645 5.7786e-06 deg
node 261.8406637252419 4.6736e-05 deg
peri 216.19994633 5.6616e-05 deg
M 229.4027726544188 1.9565e-05 deg
tp 2459232.172023527528
(2021-Jan-17.67202353)
3.5076e-05 TDB
period 638.6194421204295
1.75
1.8664e-06
5.11e-09
d
yr
n .5637160040174787 1.6475e-09 deg/d
Q 1.881368422417472 3.6656e-09 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      2551 days (6.98 yr)  
   first obs. used      2013-11-29  
   last obs. used      2020-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-23 05:21:30  

Additional Information
 Earth MOID = .0468788 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 23.3   n/a E2014B41  
rotation period rot_per 2.4 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:
[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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