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JPL Small-Body Database Browser
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2123 Vltava (1973 SL2)
Classification: Main-belt Asteroid          SPK-ID: 2002123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07926112257497307 4.9319e-08  
a 2.858788781200437 1.371e-08 au
q 2.632197973197751 1.3909e-07 au
i 1.011035828929561 3.8611e-06 deg
node 311.5917259204015 0.00026784 deg
peri 58.54219108655278 0.00026879 deg
M 134.4715171342564 2.3166e-05 deg
tp 2457941.023484634918
(2017-Jul-06.52348463)
0.00011297 TDB
period 1765.515483062468
4.83
1.27e-05
3.477e-08
d
yr
n .2039064530748509 1.4668e-09 deg/d
Q 3.085379589203123 1.4797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2562  
   data-arc span      31155 days (85.30 yr)  
   first obs. used      1934-08-10  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47064  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:11:02  

Additional Information
 Earth MOID = 1.63081 au 
 Jupiter MOID = 2.32578 au 
 T_jup = 3.298 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6   n/a MPO473793 IRAS observations used: 2
diameter diameter 14.461 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 34.0 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
geometric albedo albedo 0.212   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2123 Vltava           Discovered 1973 Sept. 22 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Named for the river on which the city of Prague is situated.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5283Last Updated: 2007-10-23

Alternate Designations
 1973 SL2 = 1934 PB = 1936 AE = 1942 EV = 1951 AQ1 = 1954 UL = 1956 AJ = 1956 CE = 1964 VZ = 1975 AR = 1977 JB1 = 1978 SO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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