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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08038472808355826 3.1014e-08  
a 3.000326576567784 1.4338e-08 au
q 2.75914614054851 9.3342e-08 au
i 9.67035840221128 3.0666e-06 deg
node 201.1247470004827 2.1153e-05 deg
peri 252.0752240546967 3.1628e-05 deg
M 247.0652705030839 2.615e-05 deg
tp 2459795.992416922150
(2022-Aug-04.49241692)
0.00013973 TDB
period 1898.240435399705
5.20
1.3607e-05
3.725e-08
d
yr
n .189649315906705 1.3594e-09 deg/d
Q 3.241507012587059 1.549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2236  
   data-arc span      18694 days (51.18 yr)  
   first obs. used      1969-10-17  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:14:48  

Additional Information
 Earth MOID = 1.79435 au 
 Jupiter MOID = 1.97742 au 
 T_jup = 3.227 
[ 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 12.94   n/a E2021B10  
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. 2020-October); 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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