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18423 (1993 UF7)
Classification: Main-belt Asteroid          SPK-ID: 2018423
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101129839577226 3.1172e-08  
a 2.228454826096651 6.2301e-09 au
q 1.983073015580161 6.8109e-08 au
i 4.533682656337342 3.8138e-06 deg
node 145.526332566005 4.159e-05 deg
peri 267.5083278501016 4.5513e-05 deg
M 100.273481212073 1.8056e-05 deg
tp 2459058.055258368057
(2020-Jul-27.55525837)
6.0807e-05 TDB
period 1215.078059669775
3.33
5.0955e-06
1.395e-08
d
yr
n .2962772614772076 1.2425e-09 deg/d
Q 2.473836636613141 6.9161e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      12685 days (34.73 yr)  
   first obs. used      1986-09-06  
   last obs. used      2021-05-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:37:12  

Additional Information
 Earth MOID = .999652 au 
 Jupiter MOID = 2.81911 au 
 T_jup = 3.632 
[ 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 14.70   n/a MPCxxxxx  

18423 (1993 UF7)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 UF7 = 1986 RL4 = 1996 OM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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