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(2017 UK44)
Classification: Amor [NEO]          SPK-ID: 3788160
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4078981548521026 0.00060903  
a 1.720372971974067 0.0018245 au
q 1.018636011048417 3.26e-05 au
i 14.96856770315582 0.014642 deg
node 33.83572965515685 0.001043 deg
peri 349.2939983631658 0.0030156 deg
M 57.22687026950404 0.66184 deg
tp 2458869.482340316021
(2020-Jan-20.98234032)		 1.3068 TDB
period 824.1994934216626
2.26		 1.3111
0.00359		 d
yr
n .4367874560386596 0.00069483 deg/d
Q 2.422109932899717 0.0025687 au
   Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      2 days  
   first obs. used      2017-10-29  
   last obs. used      2017-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54714  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-31 15:42:09  

Additional Information
 Earth MOID = .0296462 au 
 Jupiter MOID = 3.03521 au 
 T_jup = 4.039 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458056.5 (2017-Oct-30.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4085596512173482 0.00061005  
q 1.017474839251912 2.6638e-05 au
tp 2458045.299740265064
(2017-Oct-18.79974027)		 0.0018566 TDB
node 33.85848042640153 0.0010508 deg
peri 349.2333371561335 0.0026174 deg
i 14.98516719755985 0.014662 deg
   Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      2 days  
   first obs. used      2017-10-29  
   last obs. used      2017-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54714  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-31 15:42:09  

Additional Information
 Jupiter MOID = 3.03521 au 
 T_jup = 4.039 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.721636959070185E-7 1.619941647131582E-8 1.769657139300755E-7 -6.408603144425055E-7 -9.333958497422723E-7 8.941630518408316E-6
q 1.619941647131582E-8 7.096059485514586E-10 1.15726516735284E-8 -2.793845719509E-8 -3.614610964901115E-8 3.884728652893507E-7
tp 1.769657139300755E-7 1.15726516735284E-8 3.447107336563816E-6 -3.411763734600402E-7 3.450420596800424E-6 3.605284974364967E-6
node -6.408603144425055E-7 -2.793845719509E-8 -3.411763734600402E-7 1.104101047890695E-6 1.564941380204879E-6 -1.539015378075494E-5
peri -9.333958497422723E-7 -3.614610964901115E-8 3.450420596800424E-6 1.564941380204879E-6 6.850615660758102E-6 -2.31746711897579E-5
i 8.941630518408316E-6 3.884728652893507E-7 3.605284974364967E-6 -1.539015378075494E-5 -2.31746711897579E-5 .0002149633128533491

[ 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 25.1   n/a MPO421622  

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