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190379 (1999 RQ123)
Classification: Main-belt Asteroid          SPK-ID: 2190379
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3244801043446403 6.0762e-08  
a 2.723975007337469 1.0462e-08 au
q 1.840099312724415 1.6661e-07 au
i 8.177055845822036 5.8926e-06 deg
node 223.2501028830243 3.5593e-05 deg
peri 151.4206303358214 3.5923e-05 deg
M 249.6648634466456 6.3637e-06 deg
tp 2459703.785526133503
(2022-May-04.28552613)		 3.0818e-05 TDB
period 1642.113247582261
4.50		 9.4601e-06
2.59e-08		 d
yr
n .2192297032680542 1.263e-09 deg/d
Q 3.607850701950523 1.3856e-08 au
   Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46642  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:23  

Additional Information
 Earth MOID = .845214 au 
 Jupiter MOID = 1.89371 au 
 T_jup = 3.265 
[ 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 15.58   n/a E2021B55  
diameter diameter 5.409 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190379 (1999 RQ123)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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