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(2009 SH2)
Classification: Aten [NEO]          SPK-ID: 3467258
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 .09423138874481182 1.0324e-05  
a .9912333761976367 5.5972e-06 au
q .8978280785883249 1.5298e-05 au
i 6.811121572713721 0.00080031 deg
node 6.674089746493703 0.00010347 deg
peri 101.7253950465811 0.0041077 deg
M 193.2620605369264 0.02791 deg
tp 2459167.453001661983
(2020-Nov-13.95300166)
0.02936 TDB
period 360.4643357825869
0.99
0.0030531
8.359e-06
d
yr
n .9987118398784757 8.4591e-06 deg/d
Q 1.084638673806949 6.1246e-06 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      14 days  
   first obs. used      2009-09-18  
   last obs. used      2009-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .37076  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:59:56  

Additional Information
 Earth MOID = .000599611 au 
 Jupiter MOID = 3.94128 au 
 T_jup = 6.112 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455099.5 (2009-Sep-25.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09363203927710632 8.9771e-06  
q .9155708981545505 6.1497e-06 au
tp 2455187.405719215446
(2009-Dec-21.90571922)
0.0016045 TDB
node 7.226871672711796 3.768e-05 deg
peri 91.23965566220225 0.00092719 deg
i 6.871089969648254 0.00079124 deg
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      14 days  
   first obs. used      2009-09-18  
   last obs. used      2009-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .37076  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:59:56  

Additional Information
 Jupiter MOID = 3.94128 au 
 T_jup = 6.112 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.058917332995007E-11 -5.515473475953928E-11 -1.434561494515785E-8 3.370190864161241E-10 -8.171833781516696E-9 7.102622605310631E-9
q -5.515473475953928E-11 3.781898412079306E-11 9.779577721083997E-9 -2.305699680373776E-10 5.545678999754861E-9 -4.860421006863799E-9
tp -1.434561494515785E-8 9.779577721083997E-9 2.574392788229055E-6 -6.003159814659429E-8 1.480031215281137E-6 -1.264623055422206E-6
node 3.370190864161241E-10 -2.305699680373776E-10 -6.003159814659429E-8 1.419772975156159E-9 -3.423298198603636E-8 2.970181265401026E-8
peri -8.171833781516696E-9 5.545678999754861E-9 1.480031215281137E-6 -3.423298198603636E-8 8.596763141936946E-7 -7.205687832551698E-7
i 7.102622605310631E-9 -4.860421006863799E-9 -1.264623055422206E-6 2.970181265401026E-8 -7.205687832551698E-7 6.260633629287703E-7

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 24.9   n/a MPO164364  
rotation period rot_per 1.26 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Ryan, W. UNPUBLISHED]

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