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201557 (2003 RC26)
Classification: Main-belt Asteroid          SPK-ID: 2201557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052659460839929 4.5158e-08  
a 3.162004962756849 2.6627e-08 au
q 2.829153518829968 1.4817e-07 au
i 3.660750211554956 4.7349e-06 deg
node 228.2509781627315 7.7308e-05 deg
peri 108.415841293883 8.12e-05 deg
M 26.33061679580844 2.2721e-05 deg
tp 2458850.289331288631
(2020-Jan-01.78933129)
0.00012972 TDB
period 2053.724800882798
5.62
2.5942e-05
7.103e-08
d
yr
n .1752912560851645 2.2142e-09 deg/d
Q 3.494856406683729 2.943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      6261 days (17.14 yr)  
   first obs. used      2003-09-03  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:05:01  

Additional Information
 Earth MOID = 1.8226 au 
 Jupiter MOID = 1.87083 au 
 T_jup = 3.193 
[ 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 15.6   n/a MPO440088  
diameter diameter 4.081 km 1.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201557 (2003 RC26)          Discovered 2003-Sep-03 by Bickel, W. at Bergisch Gladbach
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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