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66637 (1999 RC213)
Classification: Main-belt Asteroid          SPK-ID: 2066637
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158964645313544 5.2181e-08  
a 2.627994180227279 1.2916e-08 au
q 2.323418945929963 1.4304e-07 au
i 9.119000315632674 4.865e-06 deg
node 310.4022040723628 2.4176e-05 deg
peri 54.06557296155311 3.1215e-05 deg
M 44.30521844612259 1.7403e-05 deg
tp 2459204.991785602548
(2020-Dec-21.49178560)
7.5255e-05 TDB
period 1556.09112427514
4.26
1.1472e-05
3.141e-08
d
yr
n .2313489193428152 1.7056e-09 deg/d
Q 2.932569414524596 1.4413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8672 days (23.74 yr)  
   first obs. used      1997-03-10  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:54  

Additional Information
 Earth MOID = 1.33239 au 
 Jupiter MOID = 2.52814 au 
 T_jup = 3.374 
[ 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 15.72   n/a E2021B10  
diameter diameter 5.653 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66637 (1999 RC213)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RC213 = 1997 EW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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