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277303 (2005 SE144)
Classification: Main-belt Asteroid          SPK-ID: 2277303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02697274183287708 4.164e-08  
a 2.356375772061289 1.3487e-08 au
q 2.292817856700233 9.943e-08 au
i 5.372964572535849 6.0693e-06 deg
node 161.3787234469099 4.8539e-05 deg
peri 276.148055868395 0.0001305 deg
M 11.08464986173238 0.00012431 deg
tp 2459159.819645529781
(2020-Nov-06.31964553)
0.0004561 TDB
period 1321.189915058813
3.62
1.1343e-05
3.106e-08
d
yr
n .2724816439307853 2.3393e-09 deg/d
Q 2.419933687422345 1.3851e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      9109 days (24.94 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54534  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:11:10  

Additional Information
 Earth MOID = 1.31483 au 
 Jupiter MOID = 2.61786 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457198.5 (2015-Jun-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0269017355498139 4.1002e-08  
q 2.29275996702821 9.811e-08 au
tp 2457830.446843824726
(2017-Mar-17.94684382)
0.00045635 TDB
node 161.4525165482352 4.8529e-05 deg
peri 273.8957292074986 0.00013164 deg
i 5.373231810460882 6.0691e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      9109 days (24.94 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54534  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:11:10  

Additional Information
 Jupiter MOID = 2.61786 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.681189099293788E-15 -3.986025013825205E-15 4.356266151787137E-12 6.166228328215348E-15 1.171605313016536E-12 1.437896305656664E-15
q -3.986025013825205E-15 9.625513493337423E-15 -8.132592982619319E-12 -1.209214268249338E-14 -2.20732928877014E-12 -3.239450723598507E-15
tp 4.356266151787137E-12 -8.132592982619319E-12 2.082587542150077E-7 1.779798374535815E-10 5.585547522729937E-8 6.740126945447295E-12
node 6.166228328215348E-15 -1.209214268249338E-14 1.779798374535815E-10 2.355110470007814E-9 -2.296358978231797E-9 -7.362525365595613E-11
peri 1.171605313016536E-12 -2.20732928877014E-12 5.585547522729937E-8 -2.296358978231797E-9 1.73287831434484E-8 7.506625457545379E-11
i 1.437896305656664E-15 -3.239450723598507E-15 6.740126945447295E-12 -7.362525365595613E-11 7.506625457545379E-11 3.68343953305084E-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 17.2   n/a MPO437262  

277303 (2005 SE144)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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