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541416 (2011 HE45)
Classification: Main-belt Asteroid          SPK-ID: 2541416
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06554039378606158 5.6697e-08  
a 3.142342709178224 5.1556e-08 au
q 2.936392330607923 2.048e-07 au
i 9.981214915060248 5.8153e-06 deg
node 118.9805672398798 3.4907e-05 deg
peri 3.866896451302801 6.9835e-05 deg
M 356.6387891756696 5.6402e-05 deg
tp 2459219.496430445504
(2021-Jan-04.99643045)
0.00031867 TDB
period 2034.5986365624
5.57
5.0072e-05
1.371e-07
d
yr
n .1769390746315675 4.3545e-09 deg/d
Q 3.348293087748524 5.4935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      4093 days (11.21 yr)  
   first obs. used      2009-12-20  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:09  

Additional Information
 Earth MOID = 1.95216 au 
 Jupiter MOID = 1.71705 au 
 T_jup = 3.183 
[ 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 16.28   .20121 MPCxxxxx autocmod 2.8

541416 (2011 HE45)          Discovered 2011-Apr-27 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 HE45 = 2016 CT197 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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