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541418 (2011 HU45)
Classification: Main-belt Asteroid          SPK-ID: 2541418
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 .1125774221782569 8.3555e-08  
a 2.8632964148843 4.7946e-08 au
q 2.540953885564381 2.5174e-07 au
i 14.30729885351835 9.0283e-06 deg
node 211.5780734544856 3.4344e-05 deg
peri 260.1894008449848 7.0479e-05 deg
M 79.62615779607309 5.2705e-05 deg
tp 2458809.072665387506
(2019-Nov-21.57266539)
0.00026424 TDB
period 1769.692829100028
4.85
4.445e-05
1.217e-07
d
yr
n .2034251334922778 5.1095e-09 deg/d
Q 3.185638944204219 5.3343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      9306 days (25.48 yr)  
   first obs. used      1994-10-31  
   last obs. used      2020-04-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:11  

Additional Information
 Earth MOID = 1.60437 au 
 Jupiter MOID = 2.0898 au 
 T_jup = 3.246 
[ 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 16.95   .24728 E2021B25 autocmod 2.8

541418 (2011 HU45)          Discovered 2011-Apr-12 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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