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27 Euterpe (A853 VA)
Classification: Main-belt Asteroid          SPK-ID: 2000027
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 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727160429443495 2.8384e-08  
a 2.346781080133344 2.6204e-09 au
q 1.941454338316047 6.6317e-08 au
i 1.58361606355307 2.9305e-06 deg
node 94.78773131375166 9.8089e-05 deg
peri 356.335293147663 9.8422e-05 deg
M 193.7279718191997 9.4871e-06 deg
tp 2460002.990479467295
(2023-Feb-27.49047947)
3.5056e-05 TDB
period 1313.128702386503
3.60
2.1994e-06
6.022e-09
d
yr
n .2741543912228327 4.5919e-10 deg/d
Q 2.752107821950642 3.073e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2981  
   data-arc span      61152 days (167.43 yr)  
   first obs. used      1853-11-10  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:25:54  

Additional Information
 Earth MOID = .958134 au 
 Jupiter MOID = 2.43458 au 
 T_jup = 3.540 
[ 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 7.07   n/a MPCxxxxx  
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 LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D.; Malcolm, G.; Koff, R.A.; Brincat, S.M.; Warner, B. (2001) Minor Planet Bull. 28, 1-2.]
[Stephens, R.D. (2001) Minor Planet Bull. 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 Bull. 38, 50-52.]
[Stephens, R.D.; Warner, B.D.; Megna, R.; Coley, D. (2012) Minor Planet Bull. 39, 2-5.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.215   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.878   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=5.92, mean=16.62, max.=26.21) deg.
U-B UB 0.502   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A853 VA)          Discovered 1853-Nov-08 by Hind, J. R. at London
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A853 VA = 1945 KB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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