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611 Valeria (A906 SM)
Classification: Main-belt Asteroid          SPK-ID: 2000611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227235808316093 3.3129e-08  
a 2.978324470852177 1.0492e-08 au
q 2.61281382691079 1.0017e-07 au
i 13.44423631948467 4.4469e-06 deg
node 189.4011297640555 1.6027e-05 deg
peri 256.7237259032071 2.4154e-05 deg
M 340.4362851961024 1.799e-05 deg
tp 2459102.524685325207
(2020-Sep-10.02468533)
9.3888e-05 TDB
period 1877.398392137537
5.14
9.9204e-06
2.716e-08
d
yr
n .1917547183952348 1.0133e-09 deg/d
Q 3.343835114793563 1.178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3040  
   data-arc span      43463 days (119.00 yr)  
   first obs. used      1901-11-02  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:27:43  

Additional Information
 Earth MOID = 1.66811 au 
 Jupiter MOID = 2.01922 au 
 T_jup = 3.208 
[ 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 9.3   n/a MPO502159 IRAS observations used: 9
diameter diameter 57.468 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.977 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2012) Minor Planet Bull. 39, 220-222.]
[Klinglesmith III, D.K. (2017) Minor Planet Bull. 44, 345-348.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.124   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.817   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.79, mean=3.38, max.=3.96) deg.
U-B UB 0.414   0.049 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.79, mean=3.38, max.=3.96) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B L   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)

611 Valeria (A906 SM)          Discovered 1906-Sep-24 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A906 SM = A901 VA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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