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(2017 QK2)
Classification: Mars-crossing Asteroid          SPK-ID: 3780772
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5225122807022418 8.3649e-05  
a 2.899639856922471 0.00056136 au
q 1.384542422066789 3.0789e-05 au
i 16.65436000581315 0.0016723 deg
node 330.0259368544762 0.00014149 deg
peri 319.9956866361734 0.0023495 deg
M 252.7267811789629 0.072797 deg
tp 2459737.907012744189
(2022-Jun-07.40701274)
0.52075 TDB
period 1803.493236374929
4.94
0.52373
0.001434
d
yr
n .1996126144191203 5.7967e-05 deg/d
Q 4.414737291778153 0.00085468 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      40 days  
   first obs. used      2017-08-17  
   last obs. used      2017-09-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .59773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:20:22  

Additional Information
 Earth MOID = .41023 au 
 Jupiter MOID = 1.13676 au 
 T_jup = 3.014 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457987.5 (2017-Aug-22.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5221159428853709 8.3863e-05  
q 1.385607901083152 2.9813e-05 au
tp 2457933.441411696093
(2017-Jun-28.94141170)
0.0032546 TDB
node 330.0800156342726 0.00011831 deg
peri 319.888564978615 0.0023596 deg
i 16.64488679924175 0.0016719 deg
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      40 days  
   first obs. used      2017-08-17  
   last obs. used      2017-09-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .59773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:20:22  

Additional Information
 Jupiter MOID = 1.13676 au 
 T_jup = 3.014 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.033070898742988E-9 1.979801998979109E-9 -2.279306654908895E-7 -9.581499548506489E-9 -1.29291222298184E-7 1.392824871182315E-7
q 1.979801998979109E-9 8.888326839888394E-10 -3.250366839194958E-8 -2.329286334623285E-9 -4.252138507791447E-9 4.227512226978512E-8
tp -2.279306654908895E-7 -3.250366839194958E-8 1.059227083114989E-5 3.474448673677807E-7 7.375599817893684E-6 -4.245664643967581E-6
node -9.581499548506489E-9 -2.329286334623285E-9 3.474448673677807E-7 1.399748938743458E-8 2.124545787727964E-7 -1.874906379643129E-7
peri -1.29291222298184E-7 -4.252138507791447E-9 7.375599817893684E-6 2.124545787727964E-7 5.567627198181574E-6 -2.277915029603157E-6
i 1.392824871182315E-7 4.227512226978512E-8 -4.245664643967581E-6 -1.874906379643129E-7 -2.277915029603157E-6 2.795236670651936E-6

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.8   n/a MPO416581  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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