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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 ]

[ 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 .2496791014114206 7.6065e-08  
a 2.651801089314757 2.5081e-08 au
q 1.989701776212822 2.0299e-07 au
i 6.559459564900298 1.4366e-05 deg
node 170.7338095734619 5.7772e-05 deg
peri 129.4422541375504 6.4597e-05 deg
M 336.5782286717205 2.4951e-05 deg
tp 2459103.118834936561
(2020-Sep-10.61883494)
0.00010944 TDB
period 1577.283804003215
4.32
2.2377e-05
6.126e-08
d
yr
n .2282404720610866 3.238e-09 deg/d
Q 3.313900402416691 3.1343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      8080 days (22.12 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 06:03:48  

Additional Information
 Earth MOID = .982128 au 
 Jupiter MOID = 1.97484 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456692.5 (2014-Feb-04.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2469919445005096 7.4997e-08  
q 2.000551306388812 1.9914e-07 au
tp 2455943.906661182872
(2012-Jan-17.40666118)
0.00011666 TDB
node 170.8866896362559 5.8002e-05 deg
peri 128.9207380206009 6.4988e-05 deg
i 6.538624669281964 1.4328e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      8080 days (22.12 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 06:03:48  

Additional Information
 Jupiter MOID = 1.97484 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.624598718038794E-15 -1.486414421010375E-14 5.39424358777754E-12 2.381889125421941E-14 1.333707458523642E-12 -1.104518969486243E-14
q -1.486414421010375E-14 3.965526546993844E-14 -1.492943759975872E-11 -7.636875496531424E-14 -3.639043744278663E-12 2.48645528614942E-14
tp 5.39424358777754E-12 -1.492943759975872E-11 1.360998146491453E-8 4.245218548784596E-11 3.431667652961508E-9 -2.059608421898958E-11
node 2.381889125421941E-14 -7.636875496531424E-14 4.245218548784596E-11 3.364261083595351E-9 -3.331741310675711E-9 3.024562952616004E-10
peri 1.333707458523642E-12 -3.639043744278663E-12 3.431667652961508E-9 -3.331741310675711E-9 4.223385589108456E-9 -3.062365821343807E-10
i -1.104518969486243E-14 2.48645528614942E-14 -2.059608421898958E-11 3.024562952616004E-10 -3.062365821343807E-10 2.053051725528464E-10

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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