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359304 (2009 HN85)
Classification: Main-belt Asteroid          SPK-ID: 2359304
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02008848415387382 6.337e-08  
a 2.63545564289366 3.1041e-08 au
q 2.582513333973154 1.591e-07 au
i 15.01722860309399 8.3756e-06 deg
node 194.26420034 1.9698e-05 deg
peri 53.97670268389899 0.00018029 deg
M 178.458997120604 0.00018123 deg
tp 2458225.827854147142
(2018-Apr-17.32785415)
0.00078513 TDB
period 1562.722961614305
4.28
2.7609e-05
7.559e-08
d
yr
n .2303671276629334 4.07e-09 deg/d
Q 2.688397951814166 3.1665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57738  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 23:25:25  

Additional Information
 Earth MOID = 1.5915 au 
 Jupiter MOID = 2.28622 au 
 T_jup = 3.349 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457502.5 (2016-Apr-24.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02112778689229056 6.1765e-08  
q 2.579060122718855 1.5459e-07 au
tp 2458238.971218050684
(2018-Apr-30.47121805)
0.00076608 TDB
node 194.29099004602 1.968e-05 deg
peri 57.0546869136101 0.00017611 deg
i 15.02491546350751 8.3802e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57738  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 23:25:25  

Additional Information
 Jupiter MOID = 2.28622 au 
 T_jup = 3.349 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.814873969587344E-15 -9.386120549678113E-15 -1.793892937207207E-11 -1.9720710861652E-14 -4.200418732901213E-12 -9.310912882124489E-15
q -9.386120549678113E-15 2.389828280657323E-14 4.90887730996915E-11 4.995042950928903E-14 1.13841211800524E-11 2.758184015622852E-14
tp -1.793892937207207E-11 4.90887730996915E-11 5.868723269216587E-7 3.102487273998066E-10 1.340627987121019E-7 9.936206909727588E-11
node -1.9720710861652E-14 4.995042950928903E-14 3.102487273998066E-10 3.8729052498095E-10 -3.021769739834416E-10 1.811855920787735E-11
peri -4.200418732901213E-12 1.13841211800524E-11 1.340627987121019E-7 -3.021769739834416E-10 3.101529368071955E-8 4.813364323599288E-12
i -9.310912882124489E-15 2.758184015622852E-14 9.936206909727588E-11 1.811855920787735E-11 4.813364323599288E-12 7.022737873036987E-11

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 16.6   n/a MPO503415  

359304 (2009 HN85)          Discovered 2009-Apr-29 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2009 HN85 = 2006 SV58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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