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150821 (2001 RM131)
Classification: Main-belt Asteroid          SPK-ID: 2150821
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241141174339543 5.1967e-08  
a 2.67818086070198 1.7686e-08 au
q 2.345780806847446 1.3306e-07 au
i 3.660895918751546 4.5124e-06 deg
node 142.7672992944582 7.983e-05 deg
peri 201.9709247707357 8.242e-05 deg
M 151.3552765581954 2.2366e-05 deg
tp 2458527.440675680537
(2019-Feb-12.94067568)
9.6352e-05 TDB
period 1600.878160741511
4.38
1.5858e-05
4.342e-08
d
yr
n .2248765763868324 2.2276e-09 deg/d
Q 3.010580914556514 1.9881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1999-02-07  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5719  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:20:11  

Additional Information
 Earth MOID = 1.33676 au 
 Jupiter MOID = 2.37645 au 
 T_jup = 3.364 
[ 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 16.08   n/a E2021B55  

150821 (2001 RM131)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

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