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277251 (2005 RW44)
Classification: Outer Main-belt Asteroid          SPK-ID: 2277251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2728105156454351 5.2498e-08  
a 3.980711762110231 9.0447e-08 au
q 2.89473173365309 2.4284e-07 au
i 9.593648242690653 5.7956e-06 deg
node 141.507589748707 4.2927e-05 deg
peri 177.2516951340129 4.4793e-05 deg
M 355.1826766159553 1.8324e-05 deg
tp 2459239.318864305174
(2021-Jan-24.81886431)
0.00014859 TDB
period 2900.945200429762
7.94
9.887e-05
2.707e-07
d
yr
n .1240974837948223 4.2295e-09 deg/d
Q 5.066691790567371 1.1512e-07 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6305 days (17.26 yr)  
   first obs. used      2003-04-08  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:19:44  

Additional Information
 Earth MOID = 1.87978 au 
 Jupiter MOID = .304543 au 
 T_jup = 2.967 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.71   n/a E2021B55  

277251 (2005 RW44)          Discovered 2005-Sep-03 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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