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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09853413578754 4.5093e-08  
a 2.565627065548607 1.0815e-08 au
q 2.312825219891653 1.1937e-07 au
i 10.2598320896863 3.3392e-06 deg
node 91.19860279601826 2.5202e-05 deg
peri 225.0381972507296 3.3516e-05 deg
M 31.18128854175233 2.0565e-05 deg
tp 2459070.488946678812
(2020-Aug-08.98894668)
8.6013e-05 TDB
period 1501.027744025279
4.11
9.4913e-06
2.599e-08
d
yr
n .2398356735463093 1.5165e-09 deg/d
Q 2.818428911205561 1.1881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      10290 days (28.17 yr)  
   first obs. used      1992-11-17  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:28:33  

Additional Information
 Earth MOID = 1.3085 au 
 Jupiter MOID = 2.40766 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 14.16   n/a E2021B10  
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 30 CATAB v2.0f-lin.ifort 2021-Apr-13 02:28:41 2021-Apr-13 02:28

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