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JPL Small-Body Database Browser
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379237 (2009 SP278)
Classification: Main-belt Asteroid          SPK-ID: 2379237
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 .1971774783362682 1.6256e-07  
a 2.458344273545715 3.8392e-08 au
q 1.973614148805566 3.7738e-07 au
i 2.792531513856162 6.4275e-06 deg
node 132.7054563091481 0.00024774 deg
peri 295.0656006536763 0.00024931 deg
M 239.3933733056314 2.2625e-05 deg
tp 2459472.162285085225
(2021-Sep-14.66228509)
8.6975e-05 TDB
period 1407.869760431739
3.85
3.298e-05
9.029e-08
d
yr
n .2557054708594649 5.99e-09 deg/d
Q 2.943074398285865 4.5962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-08-28  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:45:17  

Additional Information
 Earth MOID = .989599 au 
 Jupiter MOID = 2.36064 au 
 T_jup = 3.463 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456959.5 (2014-Oct-29.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1992599207955221 1.6352e-07  
q 1.966425253514556 3.8138e-07 au
tp 2456659.434602843814
(2014-Jan-01.93460284)
0.00010708 TDB
node 132.7908173548847 0.0002484 deg
peri 294.9293548924613 0.00024988 deg
i 2.790005086463235 6.4222e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-08-28  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:45:17  

Additional Information
 Jupiter MOID = 2.36064 au 
 T_jup = 3.463 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.67402139081188E-14 -6.227630736705097E-14 -1.385172034388188E-11 -8.381139640763758E-13 -3.565638239024987E-12 -2.855788107740821E-14
q -6.227630736705097E-14 1.454528728599091E-13 3.211079752646412E-11 1.958519030024351E-12 8.271916316801851E-12 6.67772338706657E-14
tp -1.385172034388188E-11 3.211079752646412E-11 1.146531601619632E-8 4.367417892014113E-10 3.144631591566502E-9 1.569623536442387E-11
node -8.381139640763758E-13 1.958519030024351E-12 4.367417892014113E-10 6.170389844580558E-8 -6.149445241353752E-8 6.744655928305557E-11
peri -3.565638239024987E-12 8.271916316801851E-12 3.144631591566502E-9 -6.149445241353752E-8 6.243848039450043E-8 -6.243003442778249E-11
i -2.855788107740821E-14 6.67772338706657E-14 1.569623536442387E-11 6.744655928305557E-11 -6.243003442778249E-11 4.124492171968229E-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 17.6   n/a MPO471888  

379237 (2009 SP278)          Discovered 2009-Sep-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2009 SP278 = 2007 EO144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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