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212337 (2005 SD273)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212337
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571897335380089 6.162e-08  
a 3.984351892046235 5.9172e-08 au
q 3.358052679813826 2.4176e-07 au
i .8610847192202318 6.3896e-06 deg
node 39.12075718944733 0.00047827 deg
peri 253.6225347551706 0.00047903 deg
M 32.04035089657631 2.5043e-05 deg
tp 2458741.958823146242
(2019-Sep-15.45882315)
0.00020237 TDB
period 2904.925229058544
7.95
6.4712e-05
1.772e-07
d
yr
n .123927458235017 2.7607e-09 deg/d
Q 4.610651104278643 6.8473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      6809 days (18.64 yr)  
   first obs. used      2002-03-16  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55161  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:25:24  

Additional Information
 Earth MOID = 2.34205 au 
 Jupiter MOID = .595546 au 
 T_jup = 3.034 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457840.5 (2017-Mar-28.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162641858471316 6.0504e-08  
q 3.333601206372483 2.4322e-07 au
tp 2458753.271698019060
(2019-Sep-26.77169802)
0.00019663 TDB
node 39.28660818265841 0.00046971 deg
peri 255.7690730022924 0.00047037 deg
i .8753713494435819 6.4403e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      6809 days (18.64 yr)  
   first obs. used      2002-03-16  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55161  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:25:24  

Additional Information
 Jupiter MOID = .595546 au 
 T_jup = 3.034 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.660723317211091E-15 -1.441197404510156E-14 7.042671883957656E-12 1.920501270785818E-16 7.626477566815371E-13 -3.521102444694373E-16
q -1.441197404510156E-14 5.915739513133814E-14 -2.978862408992497E-11 -4.515183275802067E-14 -3.321223302805446E-12 2.167018931009038E-15
tp 7.042671883957656E-12 -2.978862408992497E-11 3.866366392909278E-8 -2.897728883716005E-10 5.062637587086729E-9 1.133000948245036E-13
node 1.920501270785818E-16 -4.515183275802067E-14 -2.897728883716005E-10 2.20630064640431E-7 -2.206294115661641E-7 -1.556615834109113E-9
peri 7.626477566815371E-13 -3.321223302805446E-12 5.062637587086729E-9 -2.206294115661641E-7 2.212450664844774E-7 1.556373406300688E-9
i -3.521102444694373E-16 2.167018931009038E-15 1.133000948245036E-13 -1.556615834109113E-9 1.556373406300688E-9 4.147763298337874E-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 14.8   n/a MPO440125  

212337 (2005 SD273)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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