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541444 (2011 JD4)
Classification: Main-belt Asteroid          SPK-ID: 2541444
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06200950298939325 7.9299e-08  
a 3.108377884995166 5.9508e-08 au
q 2.915628917243394 2.6092e-07 au
i 12.126360725219 7.5903e-06 deg
node 123.2213787212094 3.9207e-05 deg
peri 281.132239268569 7.7628e-05 deg
M 99.36378927018463 6.7745e-05 deg
tp 2458648.009535496529
(2019-Jun-13.50953550)
0.00037233 TDB
period 2001.700706888512
5.48
5.7482e-05
1.574e-07
d
yr
n .179847066427624 5.1646e-09 deg/d
Q 3.301126852746938 6.3198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      6260 days (17.14 yr)  
   first obs. used      2004-01-27  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49473  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:20  

Additional Information
 Earth MOID = 1.95615 au 
 Jupiter MOID = 1.97009 au 
 T_jup = 3.182 
[ 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 16.52   .31238 MPCxxxxx autocmod 2.8

541444 (2011 JD4)          Discovered 2011-May-01 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 JD4 = 2015 AJ124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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