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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09011527021293074 7.0667e-08  
a 2.704266376264171 3.519e-08 au
q 2.460570681039382 1.7709e-07 au
i 5.169137536905821 7.8512e-06 deg
node 169.130392210349 7.2364e-05 deg
peri 99.28883459210959 8.5659e-05 deg
M 124.0789366396474 4.7372e-05 deg
tp 2458440.654500252583
(2018-Nov-18.15450025)
0.00021225 TDB
period 1624.323880969413
4.45
3.1705e-05
8.68e-08
d
yr
n .2216306761340898 4.326e-09 deg/d
Q 2.947962071488959 3.8361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      7091 days (19.41 yr)  
   first obs. used      2000-05-04  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:15:44  

Additional Information
 Earth MOID = 1.45128 au 
 Jupiter MOID = 2.12676 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457108.5 (2015-Mar-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0906176946686781 7.0018e-08  
q 2.459723867117905 1.754e-07 au
tp 2456820.092585427419
(2014-Jun-11.59258543)
0.00021162 TDB
node 169.1839502155216 7.2297e-05 deg
peri 100.1506608223462 8.5664e-05 deg
i 5.171099452393118 7.8564e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      7091 days (19.41 yr)  
   first obs. used      2000-05-04  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:15:44  

Additional Information
 Jupiter MOID = 2.12676 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.902523522256395E-15 -1.212614685994667E-14 -1.979536085219159E-12 -3.405569692237961E-14 -5.79804914096918E-13 3.862600724020306E-16
q -1.212614685994667E-14 3.076378735621513E-14 4.980850990923671E-12 8.04781309006911E-14 1.485643583690412E-12 -1.257087384356698E-16
tp -1.979536085219159E-12 4.980850990923671E-12 4.478414580134972E-8 4.322857174994997E-12 9.758564541349775E-9 -1.422928495133192E-11
node -3.405569692237961E-14 8.04781309006911E-14 4.322857174994997E-12 5.22686267712935E-9 -5.202896259424561E-9 1.915405698667292E-10
peri -5.79804914096918E-13 1.485643583690412E-12 9.758564541349775E-9 -5.202896259424561E-9 7.338271717001881E-9 -1.938062607689109E-10
i 3.862600724020306E-16 -1.257087384356698E-16 -1.422928495133192E-11 1.915405698667292E-10 -1.938062607689109E-10 6.172268118241266E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO450333  

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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