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305952 (2009 HU30)
Classification: Main-belt Asteroid          SPK-ID: 2305952
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05442820995831178 6.2252e-08  
a 2.670486029299489 2.6329e-08 au
q 2.525136255006038 1.6801e-07 au
i 5.922378760273614 7.2531e-06 deg
node 172.7464989940752 4.9078e-05 deg
peri 161.4356629608668 7.6303e-05 deg
M 65.36970866636324 5.4839e-05 deg
tp 2458711.060405560598
(2019-Aug-15.56040556)
0.00024421 TDB
period 1593.983759817508
4.36
2.3573e-05
6.454e-08
d
yr
n .2258492269966512 3.3401e-09 deg/d
Q 2.815835803592941 2.7762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      8590 days (23.52 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56904  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:34  

Additional Information
 Earth MOID = 1.51609 au 
 Jupiter MOID = 2.38303 au 
 T_jup = 3.372 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457326.5 (2015-Oct-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05636786219304721 6.2449e-08  
q 2.520060805820074 1.69e-07 au
tp 2457115.824339211090
(2015-Apr-03.32433921)
0.00024336 TDB
node 172.8211276888076 4.9001e-05 deg
peri 161.1779998341398 7.4594e-05 deg
i 5.926493528939463 7.26e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      8590 days (23.52 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56904  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:34  

Additional Information
 Jupiter MOID = 2.38303 au 
 T_jup = 3.372 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.899863823860378E-15 -1.043873123448595E-14 2.765426357406753E-12 -9.333498941772287E-15 5.921435365283537E-13 -9.676326458286511E-16
q -1.043873123448595E-14 2.856217746733301E-14 -9.923588113549577E-12 2.209163604022198E-14 -2.147808243070473E-12 3.3517828586331E-15
tp 2.765426357406753E-12 -9.923588113549577E-12 5.922541869764849E-8 -3.750384727071161E-12 1.370324720688998E-8 -3.569987159613202E-12
node -9.333498941772287E-15 2.209163604022198E-14 -3.750384727071161E-12 2.401071785843838E-9 -2.388399175738261E-9 -4.257964961152061E-12
peri 5.921435365283537E-13 -2.147808243070473E-12 1.370324720688998E-8 -2.388399175738261E-9 5.564269867943574E-9 3.479674048736776E-12
i -9.676326458286511E-16 3.3517828586331E-15 -3.569987159613202E-12 -4.257964961152061E-12 3.479674048736776E-12 5.270754006190047E-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 MPO494624  

305952 (2009 HU30)          Discovered 2009-Apr-19 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 HU30 = 2006 UK323 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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