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18894 (2000 GF42)
Classification: Main-belt Asteroid          SPK-ID: 2018894
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1447009471994263 3.5598e-08  
a 3.111905768695617 1.5461e-08 au
q 2.661610056370002 1.1333e-07 au
i 4.934316428406074 3.9656e-06 deg
node 4.535137564173609 4.376e-05 deg
peri 101.8972139654022 4.6407e-05 deg
M 30.59725942415022 1.3747e-05 deg
tp 2459226.080961225870
(2021-Jan-11.58096123)
7.6473e-05 TDB
period 2005.109448144335
5.49
1.4943e-05
4.091e-08
d
yr
n .1795413214641068 1.3381e-09 deg/d
Q 3.562201481021232 1.7699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1513  
   data-arc span      16183 days (44.31 yr)  
   first obs. used      1977-01-20  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46752  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:05:02  

Additional Information
 Earth MOID = 1.68423 au 
 Jupiter MOID = 1.58649 au 
 T_jup = 3.197 
[ 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 14.03   n/a MPCxxxxx  
diameter diameter 7.747 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18894 (2000 GF42)          Discovered 2000-Apr-05 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 GF42 = 1977 BB1 = 1981 UU9 = 1989 GP1 = 1994 CG15 = 1998 XX97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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