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JPL Small-Body Database Browser
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266801 (2009 SR338)
Classification: Main-belt Asteroid          SPK-ID: 2266801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548972147726365 1.0762e-07  
a 3.07825723563144 5.5415e-08 au
q 2.601443763478415 3.5075e-07 au
i 11.06757644753492 1.0652e-05 deg
node 298.3877208709742 3.6865e-05 deg
peri 50.6712556206392 4.8266e-05 deg
M 298.6312157450296 3.0874e-05 deg
tp 2458936.779822384766
(2020-Mar-28.27982238)
0.00017411 TDB
period 1972.676133774165
5.40
5.3268e-05
1.458e-07
d
yr
n .1824932100289775 4.9278e-09 deg/d
Q 3.555070707784465 6.3998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      7752 days (21.22 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:22:40  

Additional Information
 Earth MOID = 1.60962 au 
 Jupiter MOID = 1.90323 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457076.5 (2015-Feb-23.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1586230888235484 1.0713e-07  
q 2.585965139321714 3.5032e-07 au
tp 2456967.105450102109
(2014-Nov-05.60545010)
0.00014349 TDB
node 298.6801128400816 3.6892e-05 deg
peri 50.55933574158024 4.755e-05 deg
i 11.06274089486235 1.0662e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      7752 days (21.22 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:22:40  

Additional Information
 Jupiter MOID = 1.90323 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.147659782341208E-14 -3.725312394051457E-14 -9.77475347717607E-12 4.39477512556443E-14 -2.176051599610114E-12 -2.48681434576236E-14
q -3.725312394051457E-14 1.227221713413189E-13 3.217152774304025E-11 -1.458810314841906E-13 7.155866074137027E-12 8.543937630601028E-14
tp -9.77475347717607E-12 3.217152774304025E-11 2.059062133775643E-8 -7.782013135041499E-11 4.354685713645143E-9 1.72962846535597E-11
node 4.39477512556443E-14 -1.458810314841906E-13 -7.782013135041499E-11 1.36104326900435E-9 -1.351306152644775E-9 1.716924868171782E-10
peri -2.176051599610114E-12 7.155866074137027E-12 4.354685713645143E-9 -1.351306152644775E-9 2.260982954710176E-9 -1.649805647049147E-10
i -2.48681434576236E-14 8.543937630601028E-14 1.72962846535597E-11 1.716924868171782E-10 -1.649805647049147E-10 1.136811325479105E-10

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 15.5   n/a MPO476122  

266801 (2009 SR338)          Discovered 2009-Sep-18 by CSS at Catalina
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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