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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457309.5 (2015-Oct-14.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0906886767480452 6.723e-08  
q 2.459315856742351 1.7015e-07 au
tp 2456819.896400382618
(2014-Jun-11.39640038)
0.00019983 TDB
node 169.1845695465759 7.0193e-05 deg
peri 100.0874876878403 8.2321e-05 deg
i 5.171350138810406 7.2612e-06 deg
  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
 Jupiter MOID = 2.12566 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.519877045665804E-15 -1.130427658829062E-14 -6.428480769634605E-13 -2.351796915581064E-14 -2.75143639384477E-13 1.604476732571329E-15
q -1.130427658829062E-14 2.895069273072282E-14 2.042834530560141E-12 5.540358043822796E-14 8.232743323773655E-13 -3.299413161391119E-15
tp -6.428480769634605E-13 2.042834530560141E-12 3.993249577234749E-8 3.558697665925954E-12 8.62584403688946E-9 -1.203232176503683E-11
node -2.351796915581064E-14 5.540358043822796E-14 3.558697665925954E-12 4.927103294327832E-9 -4.904999672012168E-9 1.61192876347194E-10
peri -2.75143639384477E-13 8.232743323773655E-13 8.62584403688946E-9 -4.904999672012168E-9 6.776714765922777E-9 -1.631420823463373E-10
i 1.604476732571329E-15 -3.299413161391119E-15 -1.203232176503683E-11 1.61192876347194E-10 -1.631420823463373E-10 5.272567320782147E-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 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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