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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03896209386845005 4.2277e-08  
a 2.282779749761463 9.3892e-09 au
q 2.19383787087026 9.7509e-08 au
i 7.339012495131092 4.4334e-06 deg
node 66.28269510306403 3.836e-05 deg
peri 71.09665940187884 7.7173e-05 deg
M 187.3467539909766 6.5638e-05 deg
tp 2459804.680481434396
(2022-Aug-13.18048143)
0.00022967 TDB
period 1259.779230012363
3.45
7.7723e-06
2.128e-08
d
yr
n .2857643557089499 1.7631e-09 deg/d
Q 2.371721628652666 9.7551e-09 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      10811 days (29.60 yr)  
   first obs. used      1990-11-23  
   last obs. used      2020-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:48:51  

Additional Information
 Earth MOID = 1.22061 au 
 Jupiter MOID = 2.63219 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 15.46   n/a E2021B10  
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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