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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639687376244103 9.4726e-08  
a 2.4551678206475 2.3939e-08 au
q 2.052597052439854 2.1588e-07 au
i 2.211047389895285 8.21e-06 deg
node 182.3856638406855 0.00020011 deg
peri 70.32846012785433 0.00020631 deg
M 181.0433210078338 5.2499e-05 deg
tp 2459898.998716911794
(2022-Nov-15.49871691)
0.00021336 TDB
period 1405.141956726037
3.85
2.0551e-05
5.627e-08
d
yr
n .2562018721857793 3.7472e-09 deg/d
Q 2.857738588855145 2.7865e-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 = 1.03787 au 
 Jupiter MOID = 2.18133 au 
 T_jup = 3.474 
[ show covariance matrix ]

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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