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JPL Small-Body Database Browser
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(2019 SR4)
Classification: Apollo [NEO]          SPK-ID: 3856718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458753.5 (2019-Sep-27.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5566824678636151 0.010426  
a 2.100485826701147 0.045691 au
q .9311821929806068 0.0016886 au
i 7.04241155351562 0.07774 deg
node 179.3207168251831 0.020412 deg
peri 135.4787130039226 0.12764 deg
M 12.88730680520825 0.44801 deg
tp 2458713.694990946514
(2019-Aug-18.19499095)
0.08528 TDB
period 1111.931567692928
3.04
36.281
0.09933
d
yr
n .323760931391614 0.010564 deg/d
Q 3.269789460421687 0.071126 au
  Orbit Determination Parameters
   # obs. used (total)      14  
   data-arc span      1 day  
   first obs. used      2019-09-26  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .23108  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-27 04:42:04  

Additional Information
 Earth MOID = .0135443 au 
 Jupiter MOID = 2.09727 au 
 T_jup = 3.525 
[ 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 26.069   .30163 1 autocmod 2.8

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