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17834 (1998 HL43)
Classification: Main-belt Asteroid          SPK-ID: 2017834
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08054488446897695 3.8053e-08  
a 3.001391856341841 1.7134e-08 au
q 2.759645096026659 1.1071e-07 au
i 9.679800968959771 4.4056e-06 deg
node 201.4903027576902 2.3711e-05 deg
peri 249.5334587391837 3.5463e-05 deg
M 135.8484176216879 2.7209e-05 deg
tp 2457883.804694227894
(2017-May-10.30469423)
0.00014262 TDB
period 1899.251493649841
5.20
1.6263e-05
4.453e-08
d
yr
n .1895483569204301 1.6231e-09 deg/d
Q 3.243138616657022 1.8514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1692  
   data-arc span      18103 days (49.56 yr)  
   first obs. used      1969-10-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47736  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:33:16  

Additional Information
 Earth MOID = 1.79424 au 
 Jupiter MOID = 1.98815 au 
 T_jup = 3.226 
[ 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 12.9   n/a MPO347664  
diameter diameter 8.644 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 21.265 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.197   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17834 (1998 HL43)          Discovered 1998-Apr-25 by Visnjan at Visnjan
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HL43 = 1969 UE2 = 1990 VQ9 = 1999 NG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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