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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229880404174196 7.671e-09  
a 2.97901129140627 8.7174e-09 au
q 2.612628530294846 2.1921e-08 au
i 13.44469157437342 5.0403e-07 deg
node 189.3877536530349 2.1885e-06 deg
peri 256.6575282483445 1.3532e-05 deg
M 56.41008110817076 1.0743e-05 deg
tp 2459102.219914011946
(2020-Sep-09.71991401)
5.6183e-05 TDB
period 1878.04783957941
5.14
8.2435e-06
2.257e-08
d
yr
n .1916884077248119 8.414e-10 deg/d
Q 3.345394052517694 9.7896e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3578  
   data-arc span      43703 days (119.65 yr)  
   first obs. used      1901-11-02  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:49:27  

Additional Information
 Earth MOID = 1.66779 au 
 Jupiter MOID = 2.0178 au 
 T_jup = 3.207 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456588.5 (2013-Oct-23.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192307421988119 7.6661e-09  
q 2.625081130675517 2.2019e-08 au
tp 2457223.780036470490
(2015-Jul-20.28003647)
6.0811e-05 TDB
node 189.4533880680245 2.1885e-06 deg
peri 256.5986740453779 1.4036e-05 deg
i 13.43815999024969 5.0484e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3578  
   data-arc span      43703 days (119.65 yr)  
   first obs. used      1901-11-02  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:49:27  

Additional Information
 Jupiter MOID = 2.0178 au 
 T_jup = 3.207 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.876980045079573E-17 -1.587622478867583E-16 5.906359985680511E-14 -1.134913000542839E-16 1.071360117810933E-14 -8.868827242688779E-17
q -1.587622478867583E-16 4.848464038717307E-16 -3.079861093847488E-13 6.916059517180072E-16 -6.256574198744689E-14 4.449389215453833E-16
tp 5.906359985680511E-14 -3.079861093847488E-13 3.697943667880605E-9 -3.426392901938505E-12 8.420298000666461E-10 -5.454032506517943E-12
node -1.134913000542839E-16 6.916059517180072E-16 -3.426392901938505E-12 4.789527962456474E-12 -5.601693545382569E-12 -6.329063869922536E-13
peri 1.071360117810933E-14 -6.256574198744689E-14 8.420298000666461E-10 -5.601693545382569E-12 1.970010608444219E-10 -6.085141054126326E-13
i -8.868827242688779E-17 4.449389215453833E-16 -5.454032506517943E-12 -6.329063869922536E-13 -6.085141054126326E-13 2.548631697169976E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.36   n/a E2021B10 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. 2020-October); 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

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