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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227235807197355 3.3076e-08  
a 2.978324470912742 1.0445e-08 au
q 2.612813827297119 9.9962e-08 au
i 13.44423627245048 4.4219e-06 deg
node 189.4011297625548 1.6027e-05 deg
peri 256.7237259903695 2.4103e-05 deg
M 340.4362850823228 1.7876e-05 deg
tp 2459102.524685921680
(2020-Sep-10.02468592)
9.3292e-05 TDB
period 1877.398392194804
5.14
9.876e-06
2.704e-08
d
yr
n .1917547183893857 1.0087e-09 deg/d
Q 3.343835114528366 1.1727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      43474 days (119.03 yr)  
   first obs. used      1901-11-02  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:54:51  

Additional Information
 Earth MOID = 1.66811 au 
 Jupiter MOID = 2.01922 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456194.5 (2012-Sep-24.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1190796560821801 3.3023e-08  
q 2.626074081296304 9.9452e-08 au
tp 2455343.217175795488
(2010-May-26.71717580)
9.6744e-05 TDB
node 189.4716571426154 1.602e-05 deg
peri 256.4483726520221 2.4562e-05 deg
i 13.4380324098695 4.4217e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      43474 days (119.03 yr)  
   first obs. used      1901-11-02  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:54:51  

Additional Information
 Jupiter MOID = 2.01922 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.090518777429743E-15 -3.269881259215075E-15 -5.644689651204278E-14 -7.570738899309958E-16 -5.164839989629459E-15 1.106116488669376E-16
q -3.269881259215075E-15 9.890787349361459E-15 7.436819364831712E-14 3.184130827722044E-15 1.869294187565347E-15 6.515423280064369E-16
tp -5.644689651204278E-14 7.436819364831712E-14 9.359369617741572E-9 -8.314645056225156E-12 1.81720555501898E-9 -4.627287454316866E-12
node -7.570738899309958E-16 3.184130827722044E-15 -8.314645056225156E-12 2.56641118918192E-10 -2.50689806273209E-10 -1.700708068023452E-13
peri -5.164839989629459E-15 1.869294187565347E-15 1.81720555501898E-9 -2.50689806273209E-10 6.033065219225887E-10 -5.003243070013782E-13
i 1.106116488669376E-16 6.515423280064369E-16 -4.627287454316866E-12 -1.700708068023452E-13 -5.003243070013782E-13 1.955139949245205E-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. 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

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