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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0990051090066336 4.5145e-08  
a 2.56699120845018 1.0889e-08 au
q 2.3128459640385 1.1969e-07 au
i 10.26101434737165 3.3549e-06 deg
node 91.20653828458686 2.5198e-05 deg
peri 225.1549528776696 3.344e-05 deg
M 343.1246646994628 2.0557e-05 deg
tp 2459070.918198232944
(2020-Aug-09.41819823)
8.5632e-05 TDB
period 1502.225046933013
4.11
9.5589e-06
2.617e-08
d
yr
n .2396445197974742 1.5249e-09 deg/d
Q 2.82113645286186 1.1968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      10226 days (28.00 yr)  
   first obs. used      1992-11-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:07:56  

Additional Information
 Earth MOID = 1.31057 au 
 Jupiter MOID = 2.40686 au 
 T_jup = 3.403 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457046.5 (2015-Jan-24.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09819142816212695 4.5348e-08  
q 2.313862752092434 1.2006e-07 au
tp 2457572.580674770334
(2016-Jul-03.08067477)
8.9567e-05 TDB
node 91.22139592418191 2.5202e-05 deg
peri 225.8642042459014 3.3478e-05 deg
i 10.26123692345047 3.3544e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      10226 days (28.00 yr)  
   first obs. used      1992-11-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:07:56  

Additional Information
 Jupiter MOID = 2.40686 au 
 T_jup = 3.403 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.056445427213582E-15 -5.428709938401604E-15 2.039270043493083E-12 3.88454232303584E-14 5.241016912206247E-13 -9.714323046289071E-16
q -5.428709938401604E-15 1.441552609794544E-14 -5.614897173957861E-12 -1.0517091559851E-13 -1.44491658395783E-12 2.743302576725257E-15
tp 2.039270043493083E-12 -5.614897173957861E-12 8.022189437534109E-9 6.536584125770874E-11 1.99978189980061E-9 1.713687551815848E-12
node 3.88454232303584E-14 -1.0517091559851E-13 6.536584125770874E-11 6.351324719592882E-10 -6.076549909990799E-10 1.011504564464047E-11
peri 5.241016912206247E-13 -1.44491658395783E-12 1.99978189980061E-9 -6.076549909990799E-10 1.120783861384853E-9 -9.587805657080383E-12
i -9.714323046289071E-16 2.743302576725257E-15 1.713687551815848E-12 1.011504564464047E-11 -9.587805657080383E-12 1.125227789725891E-11

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 27 CATAB v2.0f-lin.ifort 2020-Dec-18 03:08:00 2020-Dec-18 03:08

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