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166 Rhodope (A876 PB)
Classification: Main-belt Asteroid          SPK-ID: 2000166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2116722483069533 1.0628e-08  
a 2.685768709202816 7.2627e-09 au
q 2.117266008093392 2.9519e-08 au
i 12.0297533186388 4.1388e-07 deg
node 128.9147581437556 2.165e-06 deg
peri 264.147526942408 5.6418e-06 deg
M 277.8125572687459 8.3913e-06 deg
tp 2459763.532319465739
(2022-Jul-03.03231947)
3.8299e-05 TDB
period 1607.686413114531
4.40
6.5211e-06
1.785e-08
d
yr
n .2239242659907668 9.0829e-10 deg/d
Q 3.254271410312239 8.8e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3323  
   data-arc span      52905 days (144.85 yr)  
   first obs. used      1876-08-17  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:37:18  

Additional Information
 Earth MOID = 1.16215 au 
 Jupiter MOID = 2.32552 au 
 T_jup = 3.311 
[ 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 9.91   n/a E2021B10  
diameter diameter 52.393 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.715 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Collaborative Asteroid Lightcurve Link (CALL) (2011) http://www.minorplanetobserver.com/DATA/submissions_results.htm]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.725   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=11.88, mean=11.89, max.=11.89) deg.
U-B UB 0.425   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=11.88, mean=11.89, max.=11.89) deg.
Tholen spectral type spec_T GC:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
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)

166 Rhodope (A876 PB)          Discovered 1876-Aug-15 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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