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201666 (2003 UN50)
Classification: Main-belt Asteroid          SPK-ID: 2201666
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2908428925837377 2.3978e-07  
a 2.887036196899035 3.5602e-08 au
q 2.047362238398966 6.8274e-07 au
i 12.18326454168911 8.0742e-06 deg
node 246.7302856759139 4.0914e-05 deg
peri 117.1195982386405 4.4918e-05 deg
M 156.4769611605106 3.9986e-05 deg
tp 2458221.702277248633
(2018-Apr-13.20227725)
0.00018713 TDB
period 1791.747348051435
4.91
3.3143e-05
9.074e-08
d
yr
n .2009211847817205 3.7165e-09 deg/d
Q 3.726710155399104 4.5956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7377 days (20.20 yr)  
   first obs. used      1998-10-02  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:08:31  

Additional Information
 Earth MOID = 1.07962 au 
 Jupiter MOID = 1.95769 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456056.5 (2012-May-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2858826802972422 2.3817e-07  
q 2.065668299511237 6.7408e-07 au
tp 2456424.351972679828
(2013-May-11.85197268)
0.0001618 TDB
node 247.1716057514171 4.0816e-05 deg
peri 116.4751715927915 4.5064e-05 deg
i 12.18067621467825 8.0664e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      7377 days (20.20 yr)  
   first obs. used      1998-10-02  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:08:31  

Additional Information
 Jupiter MOID = 1.95769 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.672320765315557E-14 -1.6044431852104E-13 3.00339277208433E-11 -5.975506063323085E-13 2.117558054254585E-12 7.64278755206779E-14
q -1.6044431852104E-13 4.543801579107365E-13 -8.315008277567034E-11 1.68392391792197E-12 -5.718222931132885E-12 -2.186139967442978E-13
tp 3.00339277208433E-11 -8.315008277567034E-11 2.617834207452237E-8 -3.565040204859113E-10 2.946011301069078E-9 2.08198062540893E-11
node -5.975506063323085E-13 1.68392391792197E-12 -3.565040204859113E-10 1.665962015153112E-9 -1.651079789404446E-9 -3.939456741188363E-11
peri 2.117558054254585E-12 -5.718222931132885E-12 2.946011301069078E-9 -1.651079789404446E-9 2.030740446031959E-9 3.708573198469664E-11
i 7.64278755206779E-14 -2.186139967442978E-13 2.08198062540893E-11 -3.939456741188363E-11 3.708573198469664E-11 6.506733111805931E-11

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 16.0   n/a MPO454429  

201666 (2003 UN50)          Discovered 2003-Oct-17 by Spacewatch at Kitt Peak
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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