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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06082779055703226 3.8234e-08  
a 2.653133020851825 1.3874e-08 au
q 2.491748801139503 1.0306e-07 au
i 14.85669169598996 5.6721e-06 deg
node 350.2784779689003 1.3841e-05 deg
peri 300.3137957851698 4.4942e-05 deg
M 247.1232219489378 4.3884e-05 deg
tp 2459495.424630876681
(2021-Oct-07.92463088)
0.00019345 TDB
period 1578.472296888248
4.32
1.2382e-05
3.39e-08
d
yr
n .2280686209759228 1.789e-09 deg/d
Q 2.814517240564146 1.4718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1820  
   data-arc span      11016 days (30.16 yr)  
   first obs. used      1990-04-15  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:27:09  

Additional Information
 Earth MOID = 1.50907 au 
 Jupiter MOID = 2.37346 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 13.3   n/a MPO365479  

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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