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66081 (1998 RY56)
Classification: Main-belt Asteroid          SPK-ID: 2066081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2546750943971477 3.3275e-08  
a 3.055960822025637 1.3157e-08 au
q 2.277683711202273 1.019e-07 au
i 2.102312387698926 3.2646e-06 deg
node 223.2531616143117 0.00010015 deg
peri 81.50695727156747 0.0001004 deg
M 94.90676922118509 6.0409e-06 deg
tp 2458686.083619911099
(2019-Jul-21.58361991)
3.2404e-05 TDB
period 1951.282277878513
5.34
1.2601e-05
3.45e-08
d
yr
n .1844940653032537 1.1914e-09 deg/d
Q 3.834237932849001 1.6507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1193  
   data-arc span      10900 days (29.84 yr)  
   first obs. used      1991-03-15  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5207  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:19:20  

Additional Information
 Earth MOID = 1.26177 au 
 Jupiter MOID = 1.44263 au 
 T_jup = 3.184 
[ 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 14.62   n/a MPCxxxxx  
diameter diameter 7.092 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66081 (1998 RY56)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RY56 = 2002 GZ98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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