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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2726688099837529 5.2627e-08  
a 3.978253049359631 8.4661e-08 au
q 2.893507524576504 2.4228e-07 au
i 9.586572151148744 5.7903e-06 deg
node 141.5357343150487 4.2996e-05 deg
peri 177.457743993034 4.4895e-05 deg
M 330.2086988926042 1.7862e-05 deg
tp 2459240.341318862072
(2021-Jan-25.84131886)
0.00014896 TDB
period 2898.257933719826
7.93
9.2516e-05
2.533e-07
d
yr
n .1242125470654542 3.965e-09 deg/d
Q 5.062998574142757 1.0775e-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 = 1.88056 au 
 Jupiter MOID = .307707 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 14.5   n/a MPO440343  

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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