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166 Rhodope
Classification: Main-belt Asteroid          SPK-ID: 2000166
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2102187895605798 5.7257e-08  
a 2.6874767917667 1.134e-08 AU
q 2.122518673629354 1.5347e-07 AU
i 12.02813628648279 6.5421e-06 deg
node 128.9344422418595 3.074e-05 deg
peri 264.8113441930994 3.4246e-05 deg
M 55.60009338033196 1.5574e-05 deg
tp 2456551.964442696719
(2013-Sep-16.46444270)
6.9453e-05 JED
period 1609.220330209581
4.41
1.0185e-05
2.789e-08
d
yr
n .2237108202287716 1.4159e-09 deg/d
Q 3.252434909904046 1.3724e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1260  
   data-arc span      46911 days (128.44 yr)  
   first obs. used      1885-09-10  
   last obs. used      2014-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59126  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:32:54  

Additional Information
 Earth MOID = 1.16706 AU 
 T_jup = 3.311 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.89 mag n/a PDS3 (MPC 17257)  
rotation period rot_per 4.715 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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/submi ssions_results.htm]
B-V BV .725 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=11.88, mean=11.89, max.=11.89) deg.
U-B UB .425 mag .035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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          Discovered 1876-Aug-15 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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