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JPL Small-Body Database Browser
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(2021 KQ2)
Classification: Aten [NEO]          SPK-ID: 54150701
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132375394761839 1.6662e-05  
a .9128653140129787 1.3378e-05 au
q .809494691980995 2.7073e-05 au
i 3.296959482829707 0.0006726 deg
node 248.3729677042937 0.00051671 deg
peri 173.4198676438621 0.00031754 deg
M 224.5860785674884 0.00081824 deg
tp 2459516.331031967343
(2021-Oct-28.83103197)
0.0033382 TDB
period 318.5726478628238
0.87
0.0070028
1.917e-05
d
yr
n 1.130040517963785 2.484e-05 deg/d
Q 1.016235936044962 1.4892e-05 au
  Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      2 days  
   first obs. used      2021-05-31  
   last obs. used      2021-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .27516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-03 05:50:30  

Additional Information
 Earth MOID = .00175043 au 
 Jupiter MOID = 4.10013 au 
 T_jup = 6.531 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459367.5 (2021-Jun-02.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260588148579164 1.3124e-05  
q .7887645076234616 2.0835e-05 au
tp 2459514.503029038802
(2021-Oct-27.00302904)
0.0028126 TDB
node 249.314089532541 6.7935e-05 deg
peri 173.3603408822453 0.00020262 deg
i 3.857090295869047 0.00054267 deg
  Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      2 days  
   first obs. used      2021-05-31  
   last obs. used      2021-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .27516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-03 05:50:30  

Additional Information
 Jupiter MOID = 4.10013 au 
 T_jup = 6.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.722438268078965E-10 -2.734416558353289E-10 -3.68466413070953E-8 8.849078566547808E-10 -1.673740039462664E-9 7.120201271243173E-9
q -2.734416558353289E-10 4.340983540527285E-10 5.848669079339625E-8 -1.405200942765238E-9 2.649347849786103E-9 -1.130397693706021E-8
tp -3.68466413070953E-8 5.848669079339625E-8 7.910825931594307E-6 -1.88017642796104E-7 3.846458060032028E-7 -1.521470516909105E-6
node 8.849078566547808E-10 -1.405200942765238E-9 -1.88017642796104E-7 4.615119178342744E-9 -7.41087879621418E-9 3.664348371841058E-8
peri -1.673740039462664E-9 2.649347849786103E-9 3.846458060032028E-7 -7.41087879621418E-9 4.105568857969752E-8 -6.760585375240681E-8
i 7.120201271243173E-9 -1.130397693706021E-8 -1.521470516909105E-6 3.664348371841058E-8 -6.760585375240681E-8 2.944857439517954E-7

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 29.96   .35137 E2021N14 autocmod 2.9c

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