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359298 (2009 HL78)
Classification: Main-belt Asteroid          SPK-ID: 2359298
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08991430159296175 6.7727e-08  
a 2.704891426020318 3.2303e-08 au
q 2.461683002564911 1.7148e-07 au
i 5.16890220542344 7.2554e-06 deg
node 169.123995699888 7.0258e-05 deg
peri 99.38373758858089 8.2422e-05 deg
M 168.3069305331512 4.5984e-05 deg
tp 2458440.834013343232
(2018-Nov-18.33401334)
0.00020428 TDB
period 1624.887069891453
4.45
2.9108e-05
7.969e-08
d
yr
n .221553858523872 3.9688e-09 deg/d
Q 2.948099849475725 3.5207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      7549 days (20.67 yr)  
   first obs. used      2000-05-04  
   last obs. used      2021-01-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61843  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:27:33  

Additional Information
 Earth MOID = 1.4506 au 
 Jupiter MOID = 2.12566 au 
 T_jup = 3.354 
[ 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 17.04   n/a MPCxxxxx  

359298 (2009 HL78)          Discovered 2009-Apr-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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