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18400 (1992 WY3)
Classification: Main-belt Asteroid          SPK-ID: 2018400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09900510976090542 4.5223e-08  
a 2.566991208486438 1.1775e-08 au
q 2.312845962134959 1.2008e-07 au
i 10.26101558093666 3.5528e-06 deg
node 91.20652712495779 2.7912e-05 deg
peri 225.1549641178721 3.6165e-05 deg
M 343.1246644631214 2.2531e-05 deg
tp 2459070.918199220653
(2020-Aug-09.41819922)
9.396e-05 TDB
period 1502.225046964841
4.11
1.0336e-05
2.83e-08
d
yr
n .2396445197923968 1.6489e-09 deg/d
Q 2.821136454837917 1.2941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1462  
   data-arc span      10074 days (27.58 yr)  
   first obs. used      1992-11-17  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52052  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:21:50  

Additional Information
 Earth MOID = 1.31057 au 
 Jupiter MOID = 2.40686 au 
 T_jup = 3.403 
[ 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 14.1   n/a MPO435870  
diameter diameter 4.351 km 1.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18400 (1992 WY3)          Discovered 1992-Nov-25 by Seki, T. at Geisei
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2095-Nov-08 11:46 00:04 Psych 0.014588493400171 0.0145837169032586 0.0145932816967642 3.15978130317795 3.1597810407043 2486554.990616590 4.03591985232845 700.514815407117 30.660477547142 70.2794124500333 66913.4546976872 T 23 CATAB v2.0f-lin.ifort 2020-Jun-23 18:22:07 2020-Jun-23 18:22

Alternate Designations
 1992 WY3 = 1998 DO14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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