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(2015 HA177)
Classification: Apollo [NEO]          SPK-ID: 3719076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2384946853967512 0.00036824  
a 1.127112980650796 0.00020527 au
q .8583025249238896 0.00057136 au
i 2.318273710352281 0.0048478 deg
node 215.6330437785097 0.0069469 deg
peri 80.64846112811516 0.11366 deg
M 2.071854636811663 1.2275 deg
tp 2459393.984603890055
(2021-Jun-28.48460389)
1.4909 TDB
period 437.0685971356873
1.20
0.1194
0.0003269
d
yr
n .8236693332791387 0.00022501 deg/d
Q 1.395923436377702 0.00025422 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      6 days  
   first obs. used      2015-04-23  
   last obs. used      2015-04-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .54307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 13:38:53  

Additional Information
 Earth MOID = .00286884 au 
 Jupiter MOID = 3.76847 au 
 T_jup = 5.520 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 27.7   n/a MPO337166  

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