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541097 (2018 RU9)
Classification: Main-belt Asteroid          SPK-ID: 2541097
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258958320430751 1.5637e-07  
a 2.309142769254481 1.7872e-08 au
q 2.018431319012937 3.6111e-07 au
i 7.495938136292313 1.3582e-05 deg
node 27.43373749312454 7.2794e-05 deg
peri 350.25097320 8.1133e-05 deg
M 212.026028514908 3.7658e-05 deg
tp 2459727.314153106541
(2022-May-27.81415311)
0.00013485 TDB
period 1281.665236223398
3.51
1.4879e-05
4.074e-08
d
yr
n .2808845787694058 3.2609e-09 deg/d
Q 2.599854219496024 2.0122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      6178 days (16.91 yr)  
   first obs. used      2003-04-25  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64767  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:06  

Additional Information
 Earth MOID = 1.01956 au 
 Jupiter MOID = 2.86129 au 
 T_jup = 3.564 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.64   .47018 E2021B25 autocmod 2.6n

541097 (2018 RU9)          Discovered 2004-Sep-12 by LINEAR at Socorro
Reference: Last Updated: 2019-05-29

Alternate Designations
 2018 RU9 = 2004 RS305 = 2010 GR142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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