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18424 (1993 YG)
Classification: Main-belt Asteroid          SPK-ID: 2018424
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398439884939454 3.4844e-08  
a 2.311538952259297 8.0066e-09 au
q 1.988284125616241 8.0133e-08 au
i 2.800719897290284 3.9363e-06 deg
node 286.0731891738235 0.00011557 deg
peri 138.7468757658631 0.0001175 deg
M 273.1622197861899 2.1501e-05 deg
tp 2459510.139575750343
(2021-Oct-22.63957575)
7.7187e-05 TDB
period 1283.660717669935
3.51
6.6695e-06
1.826e-08
d
yr
n .280447936938868 1.4571e-09 deg/d
Q 2.634793778902352 9.1263e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1298  
   data-arc span      24036 days (65.81 yr)  
   first obs. used      1954-09-06  
   last obs. used      2020-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58825  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:28:57  

Additional Information
 Earth MOID = 1.00225 au 
 Jupiter MOID = 2.64308 au 
 T_jup = 3.569 
[ 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 15.12   n/a E2021B10  
diameter diameter 5.551 km 0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18424 (1993 YG)          Discovered 1993-Dec-17 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 YG = 1998 FH48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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