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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122507523652141 3.388e-08  
a 2.977298234897673 1.0963e-08 au
q 2.612556800966468 1.0232e-07 au
i 13.44622405598515 4.6005e-06 deg
node 189.4032214701344 1.6378e-05 deg
peri 256.8461622835359 2.4757e-05 deg
M 263.5801328064473 1.8832e-05 deg
tp 2459103.069310734581
(2020-Sep-10.56931073)
9.8693e-05 TDB
period 1876.428138002527
5.14
1.0364e-05
2.838e-08
d
yr
n .1918538699719259 1.0597e-09 deg/d
Q 3.342039668828877 1.2306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2758  
   data-arc span      43130 days (118.08 yr)  
   first obs. used      1901-11-02  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:03  

Additional Information
 Earth MOID = 1.66782 au 
 Jupiter MOID = 2.02108 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455911.5 (2011-Dec-16.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1189310681759217 3.3816e-08  
q 2.62648493682164 1.0179e-07 au
tp 2455342.667576926077
(2010-May-26.16757693)
0.00010044 TDB
node 189.4777668994443 1.6369e-05 deg
peri 256.3621356517079 2.5216e-05 deg
i 13.43966395688157 4.6005e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2758  
   data-arc span      43130 days (118.08 yr)  
   first obs. used      1901-11-02  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:03  

Additional Information
 Jupiter MOID = 2.02108 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.143510308035812E-15 -3.426529512098631E-15 -1.160729801290586E-13 -9.245436730302013E-16 -1.708847437798062E-14 2.07727202028443E-16
q -3.426529512098631E-15 1.03618843305505E-14 3.274386971297891E-13 3.79034611338287E-15 5.054747055194633E-14 5.074949648724274E-16
tp -1.160729801290586E-13 3.274386971297891E-13 1.008860048787078E-8 -5.920494645661931E-12 1.943488172960746E-9 -4.787586558304715E-12
node -9.245436730302013E-16 3.79034611338287E-15 -5.920494645661931E-12 2.679568722338196E-10 -2.612079336539827E-10 -1.724789316756647E-12
peri -1.708847437798062E-14 5.054747055194633E-14 1.943488172960746E-9 -2.612079336539827E-10 6.358450243993428E-10 9.945514594721575E-13
i 2.07727202028443E-16 5.074949648724274E-16 -4.787586558304715E-12 -1.724789316756647E-12 9.945514594721575E-13 2.116455419873665E-11

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-January); 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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