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266775 (2009 SZ198)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266775
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041279132024341 5.9545e-08  
a 3.207090528794287 2.957e-08 au
q 2.552433831700218 2.0236e-07 au
i 2.887798846510994 6.1249e-06 deg
node 281.2676241250721 0.00010915 deg
peri 75.5298025675646 0.00011071 deg
M 324.8499948585251 1.4819e-05 deg
tp 2459205.327445073730
(2020-Dec-21.82744507)
8.6716e-05 TDB
period 2097.805673989401
5.74
2.9013e-05
7.943e-08
d
yr
n .1716078874528866 2.3734e-09 deg/d
Q 3.861747225888355 3.5606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      6260 days (17.14 yr)  
   first obs. used      2003-08-28  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:32  

Additional Information
 Earth MOID = 1.55023 au 
 Jupiter MOID = 1.61614 au 
 T_jup = 3.158 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458111.5 (2017-Dec-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2076812655063824 5.9127e-08  
q 2.535361819862996 2.0103e-07 au
tp 2457114.559294617625
(2015-Apr-02.05929462)
8.5957e-05 TDB
node 281.4199714381864 0.00010959 deg
peri 76.00984276980397 0.00011109 deg
i 2.88385049766618 6.1165e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      6260 days (17.14 yr)  
   first obs. used      2003-08-28  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:32  

Additional Information
 Jupiter MOID = 1.61614 au 
 T_jup = 3.158 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.496035287590088E-15 -1.182374868747598E-14 2.175082401366695E-14 2.631906673458956E-14 7.774917102833877E-15 -3.124761469469454E-15
q -1.182374868747598E-14 4.041465672944725E-14 -5.280568712150396E-13 -8.715025103073421E-14 -7.014314718159984E-14 1.088856339637868E-14
tp 2.175082401366695E-14 -5.280568712150396E-13 7.388543522569482E-9 -1.778254605337489E-11 1.582273402598346E-9 1.67706210287584E-12
node 2.631906673458956E-14 -8.715025103073421E-14 -1.778254605337489E-11 1.200915307500511E-8 -1.199748062599158E-8 1.71247267614573E-10
peri 7.774917102833877E-15 -7.014314718159984E-14 1.582273402598346E-9 -1.199748062599158E-8 1.234142135243199E-8 -1.707145544108091E-10
i -3.124761469469454E-15 1.088856339637868E-14 1.67706210287584E-12 1.71247267614573E-10 -1.707145544108091E-10 3.741197405708947E-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 16.4   n/a MPO476122  

266775 (2009 SZ198)          Discovered 2009-Sep-22 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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