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JPL Small-Body Database Browser
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17847 (1998 HQ115)
Classification: Main-belt Asteroid          SPK-ID: 2017847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2128426783708534 3.3597e-08  
a 2.643404374039181 1.2257e-08 au
q 2.080775107051453 8.9264e-08 au
i 10.51763443219801 4.9523e-06 deg
node 129.5448905781413 3.2702e-05 deg
peri 308.578730766009 3.6726e-05 deg
M 74.0384678028247 1.6439e-05 deg
tp 2458277.651513229521
(2018-Jun-08.15151323)
7.1196e-05 TDB
period 1569.798223632852
4.30
1.0919e-05
2.989e-08
d
yr
n .2293288363945796 1.5951e-09 deg/d
Q 3.206033641026909 1.4866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1381  
   data-arc span      14351 days (39.29 yr)  
   first obs. used      1980-01-22  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54589  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:33:18  

Additional Information
 Earth MOID = 1.11441 au 
 Jupiter MOID = 2.09 au 
 T_jup = 3.338 
[ 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 14.1   n/a MPO431704  
diameter diameter 5.383 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 289.840 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 0.171   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17847 (1998 HQ115)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HQ115 = 1980 BN = 1993 BN5 = 1993 DK3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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