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JPL Small-Body Database Browser
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66579 (1999 RK154)
Classification: Main-belt Asteroid          SPK-ID: 2066579
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819238426791875 5.3181e-08  
a 2.605496763392628 1.4249e-08 au
q 2.131494780108055 1.4174e-07 au
i 3.190884016995542 3.934e-06 deg
node 307.6847149744878 0.00010474 deg
peri 93.97563188854814 0.00010526 deg
M 292.7655743377321 1.2176e-05 deg
tp 2459287.395299272918
(2021-Mar-13.89529927)
5.3137e-05 TDB
period 1536.152153021407
4.21
1.2602e-05
3.45e-08
d
yr
n .2343517855909832 1.9225e-09 deg/d
Q 3.079498746677201 1.6842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      7281 days (19.93 yr)  
   first obs. used      1999-08-22  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:59:24  

Additional Information
 Earth MOID = 1.14281 au 
 Jupiter MOID = 2.34151 au 
 T_jup = 3.387 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456881.5 (2014-Aug-12.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849206451320264 5.3542e-08  
q 2.121541117898675 1.4315e-07 au
tp 2456216.227887538598
(2012-Oct-15.72788754)
4.3803e-05 TDB
node 307.8658454592538 0.0001051 deg
peri 93.60648950475536 0.00010559 deg
i 3.186920529196509 3.9294e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      7281 days (19.93 yr)  
   first obs. used      1999-08-22  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:59:24  

Additional Information
 Jupiter MOID = 2.34151 au 
 T_jup = 3.387 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.866735890057076E-15 -7.641728592769862E-15 -2.989533207936609E-13 1.528489248390542E-14 -1.071592647471161E-13 -2.516366988148812E-15
q -7.641728592769862E-15 2.049124371977527E-14 8.126211433538844E-13 -3.682129777141181E-14 2.952755195134983E-13 6.938257105184155E-15
tp -2.989533207936609E-13 8.126211433538844E-13 1.918674909160258E-9 -9.487079836847547E-12 4.913708793318129E-10 3.947362846625097E-13
node 1.528489248390542E-14 -3.682129777141181E-14 -9.487079836847547E-12 1.104670906257988E-8 -1.103117350966473E-8 -4.257540663430981E-13
peri -1.071592647471161E-13 2.952755195134983E-13 4.913708793318129E-10 -1.103117350966473E-8 1.114880899992492E-8 5.558843071897906E-13
i -2.516366988148812E-15 6.938257105184155E-15 3.947362846625097E-13 -4.257540663430981E-13 5.558843071897906E-13 1.543987511313475E-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 15.0   n/a MPO436246  

66579 (1999 RK154)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RK154 = 2001 BX58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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