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541454 (2011 JT18)
Classification: Main-belt Asteroid          SPK-ID: 2541454
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01424198591380486 6.3534e-08  
a 3.126270320665532 6.2144e-08 au
q 3.081746022795867 2.1919e-07 au
i 10.88621335084833 7.2933e-06 deg
node 126.7402940794031 4.2376e-05 deg
peri 332.4180959145497 0.00038264 deg
M 29.36725348920899 0.00037437 deg
tp 2459035.797933020149
(2020-Jul-05.29793302)
0.0021021 TDB
period 2019.008830176555
5.53
6.0201e-05
1.648e-07
d
yr
n .178305312299461 5.3165e-09 deg/d
Q 3.170794618535196 6.3029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      4515 days (12.36 yr)  
   first obs. used      2008-11-06  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:21  

Additional Information
 Earth MOID = 2.10074 au 
 Jupiter MOID = 1.87294 au 
 T_jup = 3.187 
[ 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 16.52   .21416 MPCxxxxx autocmod 2.8

541454 (2011 JT18)          Discovered 2011-May-01 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 JT18 = 2016 GY154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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