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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07989807017133138 3.7097e-08  
a 3.003548181672017 1.7388e-08 au
q 2.763570478289811 1.07e-07 au
i 9.663286417288985 4.1936e-06 deg
node 201.2309185263503 2.2422e-05 deg
peri 251.189421913056 3.3824e-05 deg
M 210.0002450741089 2.6857e-05 deg
tp 2459792.706461369641
(2022-Aug-01.20646137)
0.00014346 TDB
period 1901.298613680895
5.21
1.651e-05
4.52e-08
d
yr
n .1893442710206598 1.6442e-09 deg/d
Q 3.243525885054223 1.8777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1847  
   data-arc span      18189 days (49.80 yr)  
   first obs. used      1969-10-17  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:13:14  

Additional Information
 Earth MOID = 1.79873 au 
 Jupiter MOID = 1.97859 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-August); 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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