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101073 (1998 RU18)
Classification: Main-belt Asteroid          SPK-ID: 2101073
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846940932912448 3.3302e-08  
a 2.236075434182529 7.2426e-09 au
q 1.82308550933536 7.6137e-08 au
i 3.135245153817466 3.4582e-06 deg
node 139.6357153190382 6.2174e-05 deg
peri 253.3367132329338 6.2821e-05 deg
M 199.3343068884426 9.7887e-06 deg
tp 2459745.565574656005
(2022-Jun-15.06557466)
3.4568e-05 TDB
period 1221.316157021244
3.34
5.9337e-06
1.625e-08
d
yr
n .2947639707625173 1.4321e-09 deg/d
Q 2.649065359029698 8.5802e-09 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      7948 days (21.76 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53238  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:05  

Additional Information
 Earth MOID = .830901 au 
 Jupiter MOID = 2.78546 au 
 T_jup = 3.614 
[ 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 16.24   n/a E2021B55  

101073 (1998 RU18)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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