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JPL Small-Body Database Browser
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165 Loreley
Classification: Main-belt Asteroid          SPK-ID: 2000165
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08555339667333139 3.9196e-08  
a 3.126195859897862 1.2152e-08 au
q 2.858739185417494 1.2595e-07 au
i 11.22600591317563 4.406e-06 deg
node 302.4972045229534 1.8086e-05 deg
peri 346.6724318837808 2.8739e-05 deg
M 305.0287811558287 2.3617e-05 deg
tp 2458908.787252969204
(2020-Feb-29.28725297)
0.0001334 TDB
period 2018.936698193314
5.53
1.1772e-05
3.223e-08
d
yr
n .1783116827398071 1.0397e-09 deg/d
Q 3.39365253437823 1.3192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2476  
   data-arc span      52292 days (143.17 yr)  
   first obs. used      1876-08-10  
   last obs. used      2019-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48095  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:50:13  

Additional Information
 Earth MOID = 1.84314 au 
 Jupiter MOID = 1.81688 au 
 T_jup = 3.179 
[ 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 7.8   n/a MPO492750 IRAS observations used: 6
diameter diameter 180.083 km 2.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.226 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Schober, H.J.; Di Martino, M.; Cellino, A. (1988) Astron. Astrophys. 197, 327-330.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1990) Icarus 86, 402-447.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Woo, H.-S.; Kin, S.-L, Chun, M.-Y.; et al. (2001) ASP Conf. Ser. 246, 251. (895, 165)]
[Durkee, R.I. (2005) Minor Planet Bull. 32, 84.]
[Pilcher, F.; Jardine, D.C. (2006) Minor Planet Bull. 33, 77.]
[Durech, J.; Kaasalainen, M.; Marciniak, A.; et al. (2007) Astron. Astrophys. 465, 331-337.]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.047   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.722   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.90, mean=11.75, max.=18.19) deg.
U-B UB 0.291   0.097 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.90, mean=11.75, max.=18.19) deg.
Tholen spectral type spec_T CD   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Cb   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)

165 Loreley          Discovered 1876-Aug-09 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 QS = 1959 PB = 1960 WG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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