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385438 (2003 HQ3)
Classification: Main-belt Asteroid          SPK-ID: 2385438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637876062574718 9.4718e-08  
a 2.455519919635887 2.3929e-08 au
q 2.053336189881186 2.1591e-07 au
i 2.211038714049555 8.2111e-06 deg
node 182.3753040503778 0.00020008 deg
peri 70.33837368481407 0.0002063 deg
M 231.2453530938918 5.3163e-05 deg
tp 2459899.159657095675
(2022-Nov-15.65965710)
0.00021364 TDB
period 1405.444237569171
3.85
2.0544e-05
5.625e-08
d
yr
n .2561467686705586 3.7443e-09 deg/d
Q 2.857703649390589 2.7849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7914 days (21.67 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:23  

Additional Information
 Earth MOID = 1.04035 au 
 Jupiter MOID = 2.18013 au 
 T_jup = 3.473 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457718.5 (2016-Nov-26.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1640408390013283 9.4801e-08  
q 2.052385908453533 2.1636e-07 au
tp 2457089.701068358101
(2015-Mar-08.20106836)
0.00018029 TDB
node 182.4095631376858 0.00019997 deg
peri 70.4757415655054 0.00020613 deg
i 2.211515540216443 8.2112e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7914 days (21.67 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:23  

Additional Information
 Jupiter MOID = 2.18013 au 
 T_jup = 3.473 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.987151054212044E-15 -2.048603127332705E-14 1.423592686407657E-11 -5.283405996026365E-14 3.855117587878368E-12 -1.120150976916846E-14
q -2.048603127332705E-14 4.681035957136765E-14 -3.22889728519176E-11 1.167931271096243E-13 -8.725220267653749E-12 2.56775584923493E-14
tp 1.423592686407657E-11 -3.22889728519176E-11 3.250576747018526E-8 -1.51628744555965E-10 9.088531696716827E-9 -2.070530878393118E-11
node -5.283405996026365E-14 1.167931271096243E-13 -1.51628744555965E-10 3.998725725832847E-8 -4.000048601402189E-8 -1.252253274423043E-9
peri 3.855117587878368E-12 -8.725220267653749E-12 9.088531696716827E-9 -4.000048601402189E-8 4.248998680608257E-8 1.245757869339584E-9
i -1.120150976916846E-14 2.56775584923493E-14 -2.070530878393118E-11 -1.252253274423043E-9 1.245757869339584E-9 6.742414885923579E-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 17.69   n/a MPCxxxxx  

385438 (2003 HQ3)          Discovered 2003-Apr-24 by LONEOS at Anderson Mesa
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 2003 HQ3 = 1999 FR88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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