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JPL Small-Body Database Browser
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163818 (2003 RX7)
Classification: Apollo [NEO, PHA]          SPK-ID: 2163818
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 141 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3543953377356204 3.4374e-08  
a 1.229171072344808 2.0815e-09 au
q .7935585750263153 4.2022e-08 au
i 10.39075972718791 4.0244e-06 deg
node 241.0606188822509 1.9003e-05 deg
peri 245.8225702455508 1.9973e-05 deg
M 62.18578403524945 1.0847e-05 deg
tp 2458514.518397183275
(2019-Jan-31.01839718)
1.4973e-05 TDB
period 497.7564807492861
1.36
1.2644e-06
3.462e-09
d
yr
n .7232452291893465 1.8371e-09 deg/d
Q 1.664783569663301 2.8192e-09 au
  Orbit Determination Parameters
   # obs. used (total)      663  
   data-arc span      5831 days (15.96 yr)  
   first obs. used      2003-09-06  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48755  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-25 05:25:54  

Additional Information
 Earth MOID = .026678 au 
 Jupiter MOID = 3.44555 au 
 T_jup = 5.127 
[ show covariance matrix ]

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 18.5   n/a MPO454097  
diameter diameter 0.386 km 0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 5.649 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2015) Minor Planet Bull. 42, 115-127.]
geometric albedo albedo 0.516   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

163818 (2003 RX7)          Discovered 2003-Sep-06 by LONEOS at Anderson Mesa
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

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