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18041 (1999 RX13)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018041
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1135625685545928 1.8701e-08  
a 3.227100416701461 1.5039e-08 au
q 2.860622604397246 5.9385e-08 au
i 3.111843660421881 3.3344e-07 deg
node 77.67900734424545 2.4619e-06 deg
peri 80.47142399685721 7.5989e-06 deg
M 66.62185603610554 8.6831e-06 deg
tp 2458808.639604125856
(2019-Nov-21.13960413)
4.976e-05 TDB
period 2117.469414815452
5.80
1.4802e-05
4.053e-08
d
yr
n .170014262062612 1.1885e-09 deg/d
Q 3.593578229005677 1.6747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2292  
   data-arc span      23088 days (63.21 yr)  
   first obs. used      1957-05-02  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48878  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:20:57  

Additional Information
 Earth MOID = 1.87176 au 
 Jupiter MOID = 1.39471 au 
 T_jup = 3.175 
[ 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 12.74   n/a MPCxxxxx  
diameter diameter 15.123 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18041 (1999 RX13)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX13 = 1957 JL = 1968 FE = 1998 MZ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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