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115490 (2003 UQ21)
Classification: Main-belt Asteroid          SPK-ID: 2115490
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1048950598500564 3.8724e-08  
a 2.235863688486895 1.1742e-08 au
q 2.001332633066494 8.5263e-08 au
i 6.290650526856379 4.9839e-06 deg
node 301.0364120914197 3.7877e-05 deg
peri 319.4320231400421 4.6978e-05 deg
M 164.7319997591706 3.0539e-05 deg
tp 2458641.718677835237
(2019-Jun-07.21867784)
0.00010234 TDB
period 1221.142681891809
3.34
9.6197e-06
2.634e-08
d
yr
n .2948058448356612 2.3224e-09 deg/d
Q 2.470394743907296 1.2974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      618  
   data-arc span      7362 days (20.16 yr)  
   first obs. used      2000-11-20  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5916  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:43:48  

Additional Information
 Earth MOID = .988689 au 
 Jupiter MOID = 2.60165 au 
 T_jup = 3.623 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.23   n/a E2021B55  

115490 (2003 UQ21)          Discovered 2003-Oct-20 by McClusky, J. V. at Kingsnake
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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