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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205287523906845 5.2493e-08  
a 2.617837783562771 1.3824e-08 au
q 2.080428346985387 1.4505e-07 au
i 10.9865215038285 3.2924e-06 deg
node 238.3203823331259 2.031e-05 deg
peri 136.2832025216755 2.2767e-05 deg
M 345.8619431954772 9.4277e-06 deg
tp 2459261.257479050753
(2021-Feb-15.75747905)
4.0713e-05 TDB
period 1547.079118487764
4.24
1.2254e-05
3.355e-08
d
yr
n .2326965671619251 1.8432e-09 deg/d
Q 3.155247220140156 1.6662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10662 days (29.19 yr)  
   first obs. used      1991-12-04  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:53  

Additional Information
 Earth MOID = 1.09675 au 
 Jupiter MOID = 2.36924 au 
 T_jup = 3.351 
[ 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 14.97   n/a E2021B10  
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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