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186968 (2004 RX154)
Classification: Main-belt Asteroid          SPK-ID: 2186968
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107662494597322 3.9665e-08  
a 3.136694645423751 3.1893e-08 au
q 2.475585279307362 1.3201e-07 au
i 9.764468922351208 8.0388e-06 deg
node 203.0556660619463 2.9064e-05 deg
peri 70.73561648514648 3.6143e-05 deg
M 27.1965105000678 2.0471e-05 deg
tp 2459047.208711556595
(2020-Jul-16.70871156)
0.00011439 TDB
period 2029.115604352558
5.56
3.0947e-05
8.473e-08
d
yr
n .1774171955643047 2.7059e-09 deg/d
Q 3.797804011540139 3.8614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      6692 days (18.32 yr)  
   first obs. used      2002-03-05  
   last obs. used      2020-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59103  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:27  

Additional Information
 Earth MOID = 1.47938 au 
 Jupiter MOID = 1.4299 au 
 T_jup = 3.155 
[ 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 15.79   n/a E2021B55  
diameter diameter 5.327 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

186968 (2004 RX154)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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