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JPL Small-Body Database Browser
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66520 (1999 RQ101)
Classification: Main-belt Asteroid          SPK-ID: 2066520
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2057129281191731 6.0136e-08  
a 2.619257046089007 1.6079e-08 au
q 2.080442009641262 1.6165e-07 au
i 10.98779069360409 5.7725e-06 deg
node 238.3457388696272 2.5504e-05 deg
peri 136.1970401572861 2.755e-05 deg
M 299.4209562376659 1.0414e-05 deg
tp 2459261.046666556963
(2021-Feb-15.54666656)
4.5974e-05 TDB
period 1548.337413982525
4.24
1.4257e-05
3.903e-08
d
yr
n .2325074604210675 2.141e-09 deg/d
Q 3.158072082536753 1.9387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      10019 days (27.43 yr)  
   first obs. used      1991-12-04  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56746  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:17  

Additional Information
 Earth MOID = 1.09809 au 
 Jupiter MOID = 2.36578 au 
 T_jup = 3.350 
[ 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 14.8   n/a MPO436245  
diameter diameter 5.938 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66520 (1999 RQ101)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RQ101 = 2001 BR75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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