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20541 (1999 RN93)
Classification: Main-belt Asteroid          SPK-ID: 2020541
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0216261143753508 4.2966e-08  
a 2.691053681962988 1.3194e-08 au
q 2.632856647246647 1.177e-07 au
i 3.321386138756549 4.5473e-06 deg
node 59.27412447990948 7.3075e-05 deg
peri 350.6501574070817 0.00012137 deg
M 247.4509334327741 9.769e-05 deg
tp 2459704.605418449297
(2022-May-05.10541845)		 0.00043839 TDB
period 1612.434080324866
4.41		 1.1858e-05
3.247e-08		 d
yr
n .2232649411177596 1.6419e-09 deg/d
Q 2.749250716679328 1.3479e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1717  
   data-arc span      10935 days (29.94 yr)  
   first obs. used      1990-09-14  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50824  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:33  

Additional Information
 Earth MOID = 1.64117 au 
 Jupiter MOID = 2.30812 au 
 T_jup = 3.369 
[ 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 14.05   n/a E2021B10  

20541 (1999 RN93)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RN93 = 1986 UT2 = 1990 RB8 = 1992 AX4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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