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66463 (1999 RS12)
Classification: Main-belt Asteroid          SPK-ID: 2066463
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1240488603002108 3.4046e-08  
a 2.364894366173753 9.1936e-09 au
q 2.071531915319509 8.22e-08 au
i 6.808448490733708 3.9287e-06 deg
node 309.0497925567142 3.1431e-05 deg
peri 55.47014709893788 3.56e-05 deg
M 233.4868182737471 1.8327e-05 deg
tp 2459467.319860198579
(2021-Sep-09.81986020)
6.8923e-05 TDB
period 1328.360787219179
3.64
7.7461e-06
2.121e-08
d
yr
n .2710107099394526 1.5803e-09 deg/d
Q 2.658256817027996 1.0334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1310  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:13:54  

Additional Information
 Earth MOID = 1.07721 au 
 Jupiter MOID = 2.79808 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457051.5 (2015-Jan-29.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229190409114202 3.3968e-08  
q 2.074519891365076 8.1912e-08 au
tp 2456808.325609013250
(2014-May-30.82560901)
6.3578e-05 TDB
node 309.1197397617052 3.138e-05 deg
peri 55.03907506046897 3.5663e-05 deg
i 6.814267685189041 3.9311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1310  
   data-arc span      8094 days (22.16 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:13:54  

Additional Information
 Jupiter MOID = 2.79808 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.153818798034833E-15 -2.769043521648984E-15 -7.575108765329792E-14 -3.764937165998688E-15 -3.476817585823961E-14 7.8413827230673E-16
q -2.769043521648984E-15 6.709556490373253E-15 3.317360183901866E-13 8.497053348756977E-15 1.254202306848404E-13 -1.710894930225239E-15
tp -7.575108765329792E-14 3.317360183901866E-13 4.0421884536609E-9 -1.397699421222683E-11 1.090087064262597E-9 -1.267569053497843E-12
node -3.764937165998688E-15 8.497053348756977E-15 -1.397699421222683E-11 9.847026674688515E-10 -9.810428516328566E-10 -5.141981585521606E-12
peri -3.476817585823961E-14 1.254202306848404E-13 1.090087064262597E-9 -9.810428516328566E-10 1.271866574710788E-9 4.746699695785461E-12
i 7.8413827230673E-16 -1.710894930225239E-15 -1.267569053497843E-12 -5.141981585521606E-12 4.746699695785461E-12 1.545320260979091E-11

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 15.2   n/a MPO426389  
diameter diameter 3.162 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.111   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66463 (1999 RS12)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RS12 = 2001 BX30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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