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(2019 SM8)
Classification: Apollo [NEO]          SPK-ID: 3872636
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5187744095752226 0.00020116  
a 1.532625484841726 0.00050982 au
q .7375386038430203 6.3014e-05 au
i 4.644374969586731 0.001125 deg
node 188.5564041162166 0.0002545 deg
peri 256.0368560247232 0.00098552 deg
M 99.99249699707546 0.046228 deg
tp 2458808.005908334344
(2019-Nov-20.50590833)
0.007055 TDB
period 693.030728112159
1.90
0.3458
0.0009467
d
yr
n .5194574863666624 0.00025919 deg/d
Q 2.327712365840431 0.0007743 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      1 day  
   first obs. used      2019-09-30  
   last obs. used      2019-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .30217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-20 06:05:10  

Additional Information
 Earth MOID = .000899916 au 
 Jupiter MOID = 2.94135 au 
 T_jup = 4.320 
[ 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 29.2   .33947 MPO492729 autocmod 2.8

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