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173764 (2001 RF123)
Classification: Main-belt Asteroid          SPK-ID: 2173764
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05561712892736236 6.0697e-08  
a 2.795574951412283 2.6858e-08 au
q 2.640093098913482 1.7948e-07 au
i 5.662512688262785 7.7664e-06 deg
node 3.453188751114611 5.3244e-05 deg
peri 318.5813855111987 8.3102e-05 deg
M 28.52727520352326 6.3378e-05 deg
tp 2458865.210862316306
(2020-Jan-16.71086232)
0.00030035 TDB
period 1707.281512820912
4.67
2.4604e-05
6.736e-08
d
yr
n .2108615347243924 3.0387e-09 deg/d
Q 2.951056803911085 2.8352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      6914 days (18.93 yr)  
   first obs. used      2001-08-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 13:05:52  

Additional Information
 Earth MOID = 1.63121 au 
 Jupiter MOID = 2.24289 au 
 T_jup = 3.318 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436862  

173764 (2001 RF123)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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