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JPL Small-Body Database Browser
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53426 (1999 SL5)
Classification: Apollo [NEO, PHA]          SPK-ID: 2053426
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 149 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5385447504453917 4.955e-08  
a 1.923136032653358 3.3559e-09 au
q .8874412178755143 9.5287e-08 au
i 22.77736374977174 9.6281e-06 deg
node 239.104611581381 1.9851e-05 deg
peri 43.29715447092543 2.1484e-05 deg
M 148.8429826736522 6.2424e-06 deg
tp 2458197.746523388620
(2018-Mar-20.24652339)
1.6294e-05 TDB
period 974.1221855114222
2.67
2.5498e-06
6.981e-09
d
yr
n .3695634955803794 9.6733e-10 deg/d
Q 2.958830847431201 5.1632e-09 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      7036 days (19.26 yr)  
   first obs. used      1999-09-28  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37152  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:08:00  

Additional Information
 Earth MOID = .0252935 au 
 Jupiter MOID = 2.36669 au 
 T_jup = 3.650 
[ 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 17.2   n/a MPO347883  
rotation period rot_per 5.03 h n/a LCDB (Rev. 2019-January); 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. (2016) Minor Planet Bull. 43, 143-154.]

53426 (1999 SL5)          Discovered 1999-Sep-28 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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