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344638 (2003 QK9)
Classification: Main-belt Asteroid          SPK-ID: 2344638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2496791005702914 7.4806e-08  
a 2.651801089115972 2.4873e-08 au
q 1.989701778294177 2.001e-07 au
i 6.559459211445799 1.4095e-05 deg
node 170.7338088971257 5.7534e-05 deg
peri 129.4422545629926 6.4229e-05 deg
M 336.5782289737141 2.439e-05 deg
tp 2459103.118833601885
(2020-Sep-10.61883360)
0.00010694 TDB
period 1577.28380382586
4.32
2.2192e-05
6.076e-08
d
yr
n .2282404720867507 3.2112e-09 deg/d
Q 3.313900399937767 3.1083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:02:12  

Additional Information
 Earth MOID = .982128 au 
 Jupiter MOID = 1.97484 au 
 T_jup = 3.336 
[ 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 17.2   n/a MPO391766  

344638 (2003 QK9)          Discovered 2003-Aug-20 by CINEOS at Campo Imperatore
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2003 QK9 = 1998 HP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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