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18942 (2000 QE54)
Classification: Main-belt Asteroid          SPK-ID: 2018942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06088243706155737 3.8088e-08  
a 2.652661731076859 1.3821e-08 au
q 2.491161220188971 1.0263e-07 au
i 14.85770271820658 5.6364e-06 deg
node 350.2796526981397 1.3836e-05 deg
peri 300.481659166818 4.4766e-05 deg
M 292.5783106840149 4.3817e-05 deg
tp 2459496.041425773491
(2021-Oct-08.54142577)
0.0001927 TDB
period 1578.05172723893
4.32
1.2333e-05
3.377e-08
d
yr
n .228129403989742 1.7829e-09 deg/d
Q 2.814162241964748 1.4663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1836  
   data-arc span      11233 days (30.75 yr)  
   first obs. used      1990-04-15  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:42:55  

Additional Information
 Earth MOID = 1.50643 au 
 Jupiter MOID = 2.37333 au 
 T_jup = 3.339 
[ show covariance matrix ]

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 13.38   n/a E2021B10  

18942 (2000 QE54)          Discovered 2000-Aug-25 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QE54 = 1990 GP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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