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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227235811796954 3.3395e-08  
a 2.978324471369768 1.0787e-08 au
q 2.612813826328147 1.0121e-07 au
i 13.4442367372421 4.5878e-06 deg
node 189.4011298806361 1.6051e-05 deg
peri 256.723726339818 2.4524e-05 deg
M 340.4362843637468 1.875e-05 deg
tp 2459102.524689692534
(2020-Sep-10.02468969)
9.7885e-05 TDB
period 1877.398392626936
5.14
1.0199e-05
2.792e-08
d
yr
n .1917547183452483 1.0417e-09 deg/d
Q 3.343835116411389 1.2111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2857  
   data-arc span      43192 days (118.25 yr)  
   first obs. used      1901-11-02  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44829  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:32:20  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2021-Jun-21 13:02 < 00:01 Eunom 0.0407460038339878 0.0407454099590652 0.040746597713524 6.24154723190096 6.24154717670382 2459387.043195069 0.506750166789286 91.3896684108378 28.6624854894472 -85.1090842021135 211873.346358313 T 39 CATAB v2.0f-lin.ifort 2020-Feb-22 15:32:34 2020-Feb-22 15:32
2021-Oct-06 00:13 < 00:01 Hygie 0.0366460521637875 0.0366444814822524 0.0366476228630941 5.67398145278713 5.67398126696933 2459493.508821070 0.395138324552708 91.1407350489061 39.8896382446925 34.7636021875498 92556.3239204304 T 39 CATAB v2.0f-lin.ifort 2020-Feb-22 15:32:34 2020-Feb-22 15:32
2030-Sep-25 22:37 < 00:01 David 0.0416950058831056 0.0416928768059383 0.0416971350593203 6.62059998682362 6.62059993209662 2462770.442705458 0.372139179133718 149.427674074671 28.5557366447783 45.8175173672899 159265.375393981 T 39 CATAB v2.0f-lin.ifort 2020-Feb-22 15:32:34 2020-Feb-22 15:32

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