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18748 (1999 GV)
Classification: Main-belt Asteroid          SPK-ID: 2018748
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01671166792127721 3.5537e-08  
a 2.203313389609954 6.9638e-09 au
q 2.166492347916289 8.0598e-08 au
i 7.457858911647052 3.2937e-06 deg
node 62.30874492121572 2.8538e-05 deg
peri 114.9465229456027 0.0001092 deg
M 262.6267484210828 0.00010544 deg
tp 2459523.609709803734
(2021-Nov-05.10970980)
0.00035011 TDB
period 1194.573393033628
3.27
5.6633e-06
1.551e-08
d
yr
n .3013628146243717 1.4287e-09 deg/d
Q 2.24013443130362 7.0801e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1831  
   data-arc span      11667 days (31.94 yr)  
   first obs. used      1989-03-28  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48424  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:36:48  

Additional Information
 Earth MOID = 1.16951 au 
 Jupiter MOID = 2.72626 au 
 T_jup = 3.652 
[ 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 14.8   n/a MPO526137  
diameter diameter 4.176 km 0.665 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.161   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

18748 (1999 GV)          Discovered 1999-Apr-05 by Korlevic, K. at Visnjan
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 GV = 1989 FA1 = 1997 WH32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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