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135513 (2001 XR261)
Classification: Main-belt Asteroid          SPK-ID: 2135513
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1120360555543334 4.0312e-08  
a 2.814099305702424 1.8634e-08 au
q 2.498818719553336 1.1966e-07 au
i 8.463496041743136 3.825e-06 deg
node 115.052773239525 3.1301e-05 deg
peri 40.02070988149759 3.8383e-05 deg
M 294.5732802475592 2.2087e-05 deg
tp 2459513.872008836490
(2021-Oct-26.37200884)
0.00010667 TDB
period 1724.279065311504
4.72
1.7127e-05
4.689e-08
d
yr
n .2087829094735099 2.0738e-09 deg/d
Q 3.129379891851511 2.0722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      9730 days (26.64 yr)  
   first obs. used      1994-06-10  
   last obs. used      2021-01-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:13:23  

Additional Information
 Earth MOID = 1.51624 au 
 Jupiter MOID = 1.89182 au 
 T_jup = 3.295 
[ 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 15.47   n/a MPCxxxxx  

135513 (2001 XR261)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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