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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 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2146-Feb-09 18:34 00:02 Iris 0.0346859323503612 0.0346597892269289 0.0347120806803379 4.64593319084751 4.64593315517393 2504910.273837954 2.34325792848736 1465.49070539853 54.1760813995823 -27.2395292451217 43932.7632165968 T 17 CATAB v2.0f-lin.ifort 2021-Feb-24 20:11:10 2021-Feb-24 20:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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