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19490 (1998 HC150)
Classification: Main-belt Asteroid          SPK-ID: 2019490
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770268704371505 1.8201e-08  
a 2.624407500229535 1.2058e-08 au
q 2.159816853712115 5.1514e-08 au
i 15.07082974769035 1.4486e-06 deg
node 40.17829382956345 3.0026e-06 deg
peri .9932608178195717 7.0752e-06 deg
M 278.0282815514465 9.6792e-06 deg
tp 2459554.095615452170
(2021-Dec-05.59561545)
4.3039e-05 TDB
period 1552.906587442994
4.25
1.0702e-05
2.93e-08
d
yr
n .2318233452746012 1.5977e-09 deg/d
Q 3.088998146746955 1.4193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1631  
   data-arc span      13457 days (36.84 yr)  
   first obs. used      1983-11-06  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:55:00  

Additional Information
 Earth MOID = 1.16718 au 
 Jupiter MOID = 2.33804 au 
 T_jup = 3.333 
[ 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 13.18   n/a E2021B10  
diameter diameter 5.695 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19490 (1998 HC150)          Discovered 1998-Apr-19 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HC150 = 1983 VD2 = 1987 UJ1 = 2000 UK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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