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19203 (1992 HJ2)
Classification: Main-belt Asteroid          SPK-ID: 2019203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0387593022335182 4.2574e-08  
a 2.282899105681945 9.2473e-09 au
q 2.194415529276191 9.8088e-08 au
i 7.341935731709936 4.4835e-06 deg
node 66.31258009570394 3.8906e-05 deg
peri 70.47131221042287 7.9431e-05 deg
M 130.8438063884256 6.7793e-05 deg
tp 2458542.591007054670
(2019-Feb-28.09100705)
0.00023727 TDB
period 1259.878033286115
3.45
7.655e-06
2.096e-08
d
yr
n .285741945242921 1.7362e-09 deg/d
Q 2.3713826820877 9.6057e-09 au
  Orbit Determination Parameters
   # obs. used (total)      951  
   data-arc span      10407 days (28.49 yr)  
   first obs. used      1990-11-23  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:56:55  

Additional Information
 Earth MOID = 1.22129 au 
 Jupiter MOID = 2.63409 au 
 T_jup = 3.592 
[ 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 15.5   n/a MPO474019  
diameter diameter 2.152 km 0.475 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.317   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19203 (1992 HJ2)          Discovered 1992-Apr-27 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 HJ2 = 1997 WY43 = 2000 SJ209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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