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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2494275677238558 7.4544e-08  
a 2.650727884426493 2.4237e-08 au
q 1.989563275516191 1.9843e-07 au
i 6.561674717360141 1.3452e-05 deg
node 170.7174385348962 5.471e-05 deg
peri 129.342263093958 6.0578e-05 deg
M 67.07408777621737 2.3623e-05 deg
tp 2459102.803736714015
(2020-Sep-10.30373671)
0.00010268 TDB
period 1576.326392029497
4.32
2.162e-05
5.919e-08
d
yr
n .2283790982757735 3.1323e-09 deg/d
Q 3.311892493336795 3.0283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59544  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:33:06  

Additional Information
 Earth MOID = .981512 au 
 Jupiter MOID = 1.97508 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 17.11   n/a E2021B25  

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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