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66541 (1999 RP118)
Classification: Main-belt Asteroid          SPK-ID: 2066541
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043410235958028 3.1371e-08  
a 2.391433001145061 7.2531e-09 au
q 1.902765133830296 7.3807e-08 au
i 9.185305866189601 3.941e-06 deg
node 172.775406629224 1.8186e-05 deg
peri 239.0264281247784 2.0363e-05 deg
M 157.6934479527442 8.0901e-06 deg
tp 2458408.806358388891
(2018-Oct-17.30635839)
2.9971e-05 TDB
period 1350.78352173409
3.70
6.1453e-06
1.682e-08
d
yr
n .2665119867155651 1.2125e-09 deg/d
Q 2.880100868459825 8.7352e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1288  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:01:00  

Additional Information
 Earth MOID = .930862 au 
 Jupiter MOID = 2.55233 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456769.5 (2014-Apr-22.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029216163916152 3.1222e-08  
q 1.907228130364432 7.3349e-08 au
tp 2457057.266214205760
(2015-Feb-03.76621421)
3.0537e-05 TDB
node 172.7955964670024 1.8187e-05 deg
peri 239.0664557537538 2.0406e-05 deg
i 9.181245918188099 3.9393e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1288  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:01:00  

Additional Information
 Jupiter MOID = 2.55233 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.748059000745406E-16 -2.283329075883649E-15 -3.737472909186523E-13 1.863223642682303E-15 -1.185819255545285E-13 -3.649826649181388E-15
q -2.283329075883649E-15 5.380065742358286E-15 8.716995304162874E-13 -3.949035641722129E-15 2.745266463012849E-13 8.574685889320941E-15
tp -3.737472909186523E-13 8.716995304162874E-13 9.325089432358784E-10 -4.340235306573987E-12 2.88076384425348E-10 8.279685178072421E-13
node 1.863223642682303E-15 -3.949035641722129E-15 -4.340235306573987E-12 3.307792410613904E-10 -3.276012025315009E-10 1.506030093195299E-11
peri -1.185819255545285E-13 2.745266463012849E-13 2.88076384425348E-10 -3.276012025315009E-10 4.163977142606553E-10 -1.462252791972873E-11
i -3.649826649181388E-15 8.574685889320941E-15 8.279685178072421E-13 1.506030093195299E-11 -1.462252791972873E-11 1.551820417024363E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO417285  
diameter diameter 5.547 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66541 (1999 RP118)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RP118 = 2001 BE60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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