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66539 (1999 RX117)
Classification: Main-belt Asteroid          SPK-ID: 2066539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2431797395410427 2.8779e-08  
a 2.570697759925242 1.1844e-08 au
q 1.94555614822788 7.114e-08 au
i 7.398040276033996 4.4976e-06 deg
node 263.5085235633712 3.2264e-05 deg
peri 61.59902096815955 3.4433e-05 deg
M 13.72691707577701 1.2466e-05 deg
tp 2458943.095562606490
(2020-Apr-03.59556261)
5.2006e-05 TDB
period 1505.479879246226
4.12
1.0404e-05
2.848e-08
d
yr
n .2391264107629571 1.6526e-09 deg/d
Q 3.195839371622604 1.4724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      8247 days (22.58 yr)  
   first obs. used      1998-03-31  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:17:34  

Additional Information
 Earth MOID = .946319 au 
 Jupiter MOID = 2.18844 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457731.5 (2016-Dec-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2435193597801637 2.8777e-08  
q 1.944759063722427 7.123e-08 au
tp 2457438.903230138085
(2016-Feb-20.40323014)
4.9987e-05 TDB
node 263.5143769813736 3.2275e-05 deg
peri 61.88309698040065 3.4446e-05 deg
i 7.396832162766931 4.4988e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      8247 days (22.58 yr)  
   first obs. used      1998-03-31  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:17:34  

Additional Information
 Jupiter MOID = 2.18844 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.281210732130609E-16 -2.035868390175422E-15 4.001935647238694E-13 -5.857799229321638E-15 1.065374253896883E-13 -2.42920559072908E-16
q -2.035868390175422E-15 5.073726856163348E-15 -9.879168107921288E-13 1.310967508358717E-14 -2.580545199642462E-13 4.578300631253908E-16
tp 4.001935647238694E-13 -9.879168107921288E-13 2.49871788145272E-9 -1.466807677879035E-11 6.214827665042072E-10 -4.348148548726239E-12
node -5.857799229321638E-15 1.310967508358717E-14 -1.466807677879035E-11 1.041646054547393E-9 -1.036410756381008E-9 -6.909551536194167E-11
peri 1.065374253896883E-13 -2.580545199642462E-13 6.214827665042072E-10 -1.036410756381008E-9 1.186503840338022E-9 6.753178955599317E-11
i -2.42920559072908E-16 4.578300631253908E-16 -4.348148548726239E-12 -6.909551536194167E-11 6.753178955599317E-11 2.023947778381558E-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 14.9   n/a MPO436246  

66539 (1999 RX117)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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