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118287 (1998 RY66)
Classification: Main-belt Asteroid          SPK-ID: 2118287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174124163456215 4.6104e-08  
a 2.180378532306889 9.3575e-09 au
q 1.924375020280618 1.0302e-07 au
i 4.227292312610572 4.3303e-06 deg
node 281.8324478693145 7.4158e-05 deg
peri 107.374299396487 7.771e-05 deg
M 308.3095355608746 2.4816e-05 deg
tp 2459369.351221400092
(2021-Jun-03.85122140)
8.1553e-05 TDB
period 1175.970081979431
3.22
7.5703e-06
2.073e-08
d
yr
n .3061302370839539 1.9707e-09 deg/d
Q 2.436382044333161 1.0456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60232  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:33  

Additional Information
 Earth MOID = .93335 au 
 Jupiter MOID = 2.96415 au 
 T_jup = 3.669 
[ 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 16.18   n/a E2021B55  
diameter diameter 3.790 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118287 (1998 RY66)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1998 RY66 = 2001 QY96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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