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390809 (2004 HU65)
Classification: Main-belt Asteroid          SPK-ID: 2390809
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777459443781588 1.8844e-07  
a 2.232390694453282 2.1491e-08 au
q 1.835592302246669 4.2425e-07 au
i 4.022206811967131 2.5405e-05 deg
node 196.1309820848105 0.00010718 deg
peri 312.2224478498499 0.00014294 deg
M 333.4089954772488 8.5957e-05 deg
tp 2459090.488285039079
(2020-Aug-28.98828504)
0.00029113 TDB
period 1218.298563574406
3.34
1.7593e-05
4.817e-08
d
yr
n .295494069158043 4.2671e-09 deg/d
Q 2.629189086659894 2.5311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      5700 days (15.61 yr)  
   first obs. used      2004-03-31  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59957  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:31:22  

Additional Information
 Earth MOID = .849622 au 
 Jupiter MOID = 2.38253 au 
 T_jup = 3.617 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457408.5 (2016-Jan-21.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .177470817220311 1.9019e-07  
q 1.836320803228516 4.2845e-07 au
tp 2457872.910476500020
(2017-Apr-29.41047650)
0.00028853 TDB
node 196.1401016755186 0.00010717 deg
peri 312.3795823779768 0.00014285 deg
i 4.022424695908323 2.5409e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      5700 days (15.61 yr)  
   first obs. used      2004-03-31  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59957  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:31:22  

Additional Information
 Jupiter MOID = 2.38253 au 
 T_jup = 3.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.617351379962833E-14 -8.142270726256388E-14 4.960150898292209E-11 7.335860981490898E-13 1.642203049848547E-11 1.019326869075359E-13
q -8.142270726256388E-14 1.835727024814914E-13 -1.102040012707469E-10 -1.647459552587818E-12 -3.654291578754507E-11 -2.28035370939045E-13
tp 4.960150898292209E-11 -1.102040012707469E-10 8.325198293565223E-8 1.054172422210715E-9 2.730659589560862E-8 1.522764834119115E-10
node 7.335860981490898E-13 -1.647459552587818E-12 1.054172422210715E-9 1.148466738076762E-8 -1.109062706822286E-8 1.758972126646693E-9
peri 1.642203049848547E-11 -3.654291578754507E-11 2.730659589560862E-8 -1.109062706822286E-8 2.040706966345273E-8 -1.70225233429868E-9
i 1.019326869075359E-13 -2.28035370939045E-13 1.522764834119115E-10 1.758972126646693E-9 -1.70225233429868E-9 6.456137042429262E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.1   n/a MPO503473  

390809 (2004 HU65)          Discovered 2004-Mar-31 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2004 HU65 = 2009 UC36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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