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295378 (2008 HQ65)
Classification: Main-belt Asteroid          SPK-ID: 2295378
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2240693208454183 5.3716e-08  
a 2.720822857062693 2.1937e-08 au
q 2.111169927339965 1.4331e-07 au
i 3.884781892900154 6.2573e-06 deg
node 75.83524476216736 8.4371e-05 deg
peri 130.9683138678706 8.5402e-05 deg
M 260.6654585805777 1.4061e-05 deg
tp 2459452.820861513878
(2021-Aug-26.32086151)
6.7134e-05 TDB
period 1639.263722549966
4.49
1.9826e-05
5.428e-08
d
yr
n .2196107893121675 2.656e-09 deg/d
Q 3.330475786785422 2.6853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60899  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:30:46  

Additional Information
 Earth MOID = 1.1091 au 
 Jupiter MOID = 1.63456 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456902.5 (2014-Sep-02.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244961707520662 5.366e-08  
q 2.109199740870954 1.4315e-07 au
tp 2456176.549030585477
(2012-Sep-06.04903059)
5.3961e-05 TDB
node 75.85899132397796 8.4418e-05 deg
peri 131.0825398188411 8.5445e-05 deg
i 3.884489887356635 6.2559e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60899  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:30:46  

Additional Information
 Jupiter MOID = 1.63456 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.879354747968765E-15 -7.629554546580985E-15 3.719068184412245E-13 -1.473664425464583E-14 1.283378408954504E-13 -3.151132833307385E-16
q -7.629554546580985E-15 2.049102866708078E-14 -1.01546597511297E-12 3.806855651506166E-14 -3.177642979656186E-13 1.185925309051695E-15
tp 3.719068184412245E-13 -1.01546597511297E-12 2.911832399858382E-9 -2.845707253059428E-11 7.377494168830394E-10 6.505413146314991E-13
node -1.473664425464583E-14 3.806855651506166E-14 -2.845707253059428E-11 7.126398372511484E-9 -7.116461886955089E-9 -4.873024883795268E-11
peri 1.283378408954504E-13 -3.177642979656186E-13 7.377494168830394E-10 -7.116461886955089E-9 7.300802278387859E-9 4.888559781178264E-11
i -3.151132833307385E-16 1.185925309051695E-15 6.505413146314991E-13 -4.873024883795268E-11 4.888559781178264E-11 3.913667594584184E-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 MPO418563  

295378 (2008 HQ65)          Discovered 2008-Apr-29 by LINEAR at Socorro
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 HQ65 = 1999 JY32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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