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66477 (1999 RW26)
Classification: Main-belt Asteroid          SPK-ID: 2066477
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2488151758409566 3.845e-08  
a 2.56911445022262 9.5322e-09 au
q 1.929879786534936 1.0098e-07 au
i 3.221048821100975 4.0555e-06 deg
node 286.7036452505344 6.9084e-05 deg
peri 347.8506070244977 6.9427e-05 deg
M 163.5602586849917 7.1418e-06 deg
tp 2458713.141040736345
(2019-Aug-17.64104074)
2.8971e-05 TDB
period 1504.089240948906
4.12
8.3709e-06
2.292e-08
d
yr
n .2393475002672592 1.3321e-09 deg/d
Q 3.208349113910304 1.1904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      8302 days (22.73 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-12-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:31  

Additional Information
 Earth MOID = .913518 au 
 Jupiter MOID = 1.92395 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457564.5 (2016-Jun-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2486167509143295 3.8406e-08  
q 1.930624695483846 1.009e-07 au
tp 2457209.796072178538
(2015-Jul-06.29607218)
2.9013e-05 TDB
node 286.7230546819832 6.9149e-05 deg
peri 347.9313257884123 6.9495e-05 deg
i 3.219155118086585 4.0542e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      8302 days (22.73 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-12-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:31  

Additional Information
 Jupiter MOID = 1.92395 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.475000623876286E-15 -3.865869932755612E-15 -3.640580454245568E-13 -6.496235131887065E-15 -8.916316815698614E-14 -5.052909488527655E-16
q -3.865869932755612E-15 1.018029996875816E-14 9.072339763214769E-13 1.65272052642725E-14 2.253910393475291E-13 1.330637918210324E-15
tp -3.640580454245568E-13 9.072339763214769E-13 8.41772701598166E-10 6.216247540062967E-12 2.165270279011683E-10 6.604387868538353E-14
node -6.496235131887065E-15 1.65272052642725E-14 6.216247540062967E-12 4.781522166358723E-9 -4.772298557548267E-9 -9.567165426639687E-11
peri -8.916316815698614E-14 2.253910393475291E-13 2.165270279011683E-10 -4.772298557548267E-9 4.829546644202626E-9 9.553535218262188E-11
i -5.052909488527655E-16 1.330637918210324E-15 6.604387868538353E-14 -9.567165426639687E-11 9.553535218262188E-11 1.643614641102823E-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 15.27   n/a MPCxxxxx  

66477 (1999 RW26)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RW26 = 1998 FC32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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