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1098 Hakone (1928 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2001098
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161726571043869 1.7471e-08  
a 2.688559557483608 7.8509e-09 au
q 2.376222449907342 4.9767e-08 au
i 13.3931244621043 4.3826e-07 deg
node 328.8991098175694 3.7456e-06 deg
peri 81.09162319369567 8.6841e-06 deg
M 325.5101708328808 1.0259e-05 deg
tp 2459550.764665427146
(2021-Dec-02.26466543)
4.6212e-05 TDB
period 1610.192943684311
4.41
7.0529e-06
1.931e-08
d
yr
n .2235756909828941 9.793e-10 deg/d
Q 3.000896665059873 8.763e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2864  
   data-arc span      41906 days (114.73 yr)  
   first obs. used      1906-10-13  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3843  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:19:13  

Additional Information
 Earth MOID = 1.42839 au 
 Jupiter MOID = 2.38133 au 
 T_jup = 3.324 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.52   n/a E2021B10  
diameter diameter 26.684 km 0.397 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.142 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[LeCrone, C.; Addleman, D.; Butler, T.; Hudson, E.; et al. (2005) Minor Planet Bull. 32, 46-48.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.206   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Xe   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1098 Hakone (1928 RJ)          Discovered 1928-Sep-05 by Oikawa, O. at Tokyo
Independent discovery Sept. 9 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1928 RJ = 1926 EC = 1950 QH1 = 1952 BE1 = A906 RD = A917 DD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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