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18388 (1992 GX4)
Classification: Main-belt Asteroid          SPK-ID: 2018388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09683702525316112 3.9416e-08  
a 2.278268346357129 7.6682e-09 au
q 2.057647616967466 9.0531e-08 au
i 4.149200848663682 3.902e-06 deg
node 38.74379081561432 4.6075e-05 deg
peri 174.5119605443609 4.9066e-05 deg
M 308.1919463688184 1.7375e-05 deg
tp 2458781.259244337809
(2019-Oct-24.75924434)
6.0759e-05 TDB
period 1256.046568065733
3.44
6.3414e-06
1.736e-08
d
yr
n .2866135771975296 1.447e-09 deg/d
Q 2.498889075746792 8.4108e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1837  
   data-arc span      9899 days (27.10 yr)  
   first obs. used      1992-04-04  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47616  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:35:59  

Additional Information
 Earth MOID = 1.05136 au 
 Jupiter MOID = 2.46454 au 
 T_jup = 3.598 
[ 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 14.6   n/a MPO365473  
diameter diameter 3.365 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18388 (1992 GX4)          Discovered 1992-Apr-04 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 GX4 = 1995 BV16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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