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27 Euterpe
Classification: Main-belt Asteroid          SPK-ID: 2000027
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722770358914038 2.477e-08  
a 2.347085833436434 2.5899e-09 AU
q 1.9427368430693 5.7972e-08 AU
i 1.583704563461285 2.7928e-06 deg
node 94.80012235126796 9.8473e-05 deg
peri 356.5401821181561 9.8807e-05 deg
M 256.5655473967914 8.9826e-06 deg
tp 2457377.858906466918
(2015-Dec-21.35890647)
3.299e-05 JED
period 1313.384495292203
3.60
2.1739e-06
5.952e-09
d
yr
n .2741009973015608 4.5368e-10 deg/d
Q 2.751434823803569 3.036e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2177  
   data-arc span      58779 days (160.93 yr)  
   first obs. used      1853-11-10  
   last obs. used      2014-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58283  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:40:28  

Additional Information
 Earth MOID = .959082 AU 
 T_jup = 3.540 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.0 mag n/a PDS3 (MPC 17257)  
diameter diameter 96 km n/a Dunham occult. list: Dunham 1997; 124x75 km Yeomans E-mail 2001-Apr-04
rotation period rot_per 10.4082 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Stephens, R.D.; Malcolm, G.; Koff, R.A.; Brincat, S.M.; Warner, B. (2001) Minor Planet Bul. 28, 1-2.]
[Stephens, R.D. (2001) Minor Planet Bul. 28, 5-6.]
[Gandolfi, D.; Cigna, M.; Fulvio, D.; Blanco, C. (2009) Planet. Space Sci. 57, 1-9.]
[Stephens, R.D. (2009) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2011) Minor Planet Bul. 38, 50-52.]
[Stephens, R.D.; Warner, B.D.; Megna, R.; Coley, D. (2012) Minor Planet Bul. 39, 2-5.]
geometric albedo albedo 0.162   n/a EAR-A-5-DDR-ALBEDOS-V1.0:TRIAD IMPS quality code 2: from the PDS IMPS singleton file
B-V BV .878 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=5.92, mean=16.62, max.=26.21) deg.
U-B UB .502 mag .017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=14.71, mean=18.41, max.=26.21) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B S   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)

27 Euterpe          Discovered 1853-Nov-08 by Hind, J. R. at London
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
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Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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