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441826 (2009 SR64)
Classification: Main-belt Asteroid          SPK-ID: 2441826
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05321912958506134 9.5895e-08  
a 3.164687247251767 6.5528e-08 au
q 2.996265346544084 3.4115e-07 au
i 9.424003069502088 9.9822e-06 deg
node 175.3833628921505 3.7367e-05 deg
peri 272.4803961177768 0.00010856 deg
M 269.8421539278248 0.0001085 deg
tp 2459715.486268393889
(2022-May-15.98626839)
0.00062691 TDB
period 2056.338573942675
5.63
6.3868e-05
1.749e-07
d
yr
n .1750684466856846 5.4374e-09 deg/d
Q 3.33310914795945 6.9015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7124 days (19.50 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:11  

Additional Information
 Earth MOID = 2.03199 au 
 Jupiter MOID = 1.79728 au 
 T_jup = 3.181 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457593.5 (2016-Jul-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05257574367597022 9.8829e-08  
q 2.999372243785096 3.5153e-07 au
tp 2457621.547190056362
(2016-Aug-21.04719006)
0.00058586 TDB
node 175.802977759075 3.7321e-05 deg
peri 266.1552662820173 0.00010673 deg
i 9.42618794234226 9.9929e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7124 days (19.50 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:11  

Additional Information
 Jupiter MOID = 1.79728 au 
 T_jup = 3.181 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.767202251902836E-15 -3.436218558754012E-14 -2.738632400418507E-11 4.56381681480867E-14 -4.145287251412787E-12 5.844968374082106E-16
q -3.436218558754012E-14 1.235706667857612E-13 1.005426716872879E-10 -1.606151221626464E-13 1.530269286506204E-11 5.754838795641712E-15
tp -2.738632400418507E-11 1.005426716872879E-10 3.432282996309076E-7 -2.381259281907407E-10 5.850704990327071E-8 3.338767774685216E-11
node 4.56381681480867E-14 -1.606151221626464E-13 -2.381259281907407E-10 1.39283310124404E-9 -1.412087202717206E-9 6.330062281061893E-11
peri -4.145287251412787E-12 1.530269286506204E-11 5.850704990327071E-8 -1.412087202717206E-9 1.139084416119402E-8 -5.691078686255279E-11
i 5.844968374082106E-16 5.754838795641712E-15 3.338767774685216E-11 6.330062281061893E-11 -5.691078686255279E-11 9.985734498541744E-11

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 16.3   n/a MPO440828  

441826 (2009 SR64)          Discovered 2007-Apr-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2009 SR64 = 2007 JD46 = 2012 DR57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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