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192442 (1997 WJ3)
Classification: Jupiter Trojan          SPK-ID: 2192442
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08004231281782934 6.9235e-08  
a 5.186809714492987 1.2858e-07 au
q 4.771645468798983 4.1682e-07 au
i 21.98248619708905 6.865e-06 deg
node 223.7084138998525 1.6247e-05 deg
peri 120.9960045377183 5.1034e-05 deg
M 18.48685756437787 4.3015e-05 deg
tp 2458978.930746452030
(2020-May-09.43074645)
0.00052001 TDB
period 4314.683066037535
11.81
0.00016044
4.393e-07
d
yr
n .08343602403469516 3.1026e-09 deg/d
Q 5.60197396018699 1.3887e-07 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      10149 days (27.79 yr)  
   first obs. used      1993-04-28  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:08  

Additional Information
 Earth MOID = 3.82282 au 
 Jupiter MOID = .0261378 au 
 T_jup = 2.849 
[ 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 12.70   n/a E2021B55  
diameter diameter 15.127 km 0.883 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.077   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

192442 (1997 WJ3)          Discovered 1997-Nov-22 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1997 WJ3 = 2005 JH133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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