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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244408206918754 5.3794e-08  
a 2.720107213960711 2.1924e-08 au
q 2.109604118489478 1.4343e-07 au
i 3.885186537057208 6.2636e-06 deg
node 75.83292042492425 8.4828e-05 deg
peri 130.9767996330978 8.5863e-05 deg
M 172.8189645762754 1.3512e-05 deg
tp 2457813.877511344069
(2017-Mar-01.37751134)
5.7552e-05 TDB
period 1638.617015270619
4.49
1.9811e-05
5.424e-08
d
yr
n .2196974623387184 2.6562e-09 deg/d
Q 3.330610309431943 2.6845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   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      .61252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 20:55:03  

Additional Information
 Earth MOID = 1.10778 au 
 Jupiter MOID = 1.63537 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456885.5 (2014-Aug-16.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244776416329154 5.3724e-08  
q 2.109284179244244 1.4327e-07 au
tp 2456176.539060844236
(2012-Sep-06.03906084)
5.4231e-05 TDB
node 75.85930582525958 8.4873e-05 deg
peri 131.0838063136177 8.5908e-05 deg
i 3.884479367002102 6.2615e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      193  
   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      .61252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 20:55:03  

Additional Information
 Jupiter MOID = 1.63537 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.886275855001877E-15 -7.645258474191997E-15 3.579696397655473E-13 -1.513895026658443E-14 1.246814950593596E-13 -3.339992918980318E-16
q -7.645258474191997E-15 2.052683192218891E-14 -9.842639830142407E-13 3.914792618057269E-14 -3.097508359982903E-13 1.23229113209514E-15
tp 3.579696397655473E-13 -9.842639830142407E-13 2.941047908980257E-9 -2.896060210392928E-11 7.466691461879133E-10 6.512956644704561E-13
node -1.513895026658443E-14 3.914792618057269E-14 -2.896060210392928E-11 7.203460594750104E-9 -7.193465254225161E-9 -4.639195295551868E-11
peri 1.246814950593596E-13 -3.097508359982903E-13 7.466691461879133E-10 -7.193465254225161E-9 7.380173579941015E-9 4.655350536353018E-11
i -3.339992918980318E-16 1.23229113209514E-15 6.512956644704561E-13 -4.639195295551868E-11 4.655350536353018E-11 3.920671811422927E-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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