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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07941733144212755 1.8959e-08  
a 2.858980800993995 1.1666e-08 au
q 2.631928175134776 5.8835e-08 au
i 1.011098514133854 6.9735e-07 deg
node 311.5972714613932 6.2914e-05 deg
peri 58.15689357603602 6.4694e-05 deg
M 257.2534636698242 1.2364e-05 deg
tp 2459704.441326571763
(2022-May-04.94132657)
6.1707e-05 TDB
period 1765.693365884814
4.83
1.0807e-05
2.959e-08
d
yr
n .2038859107450964 1.2479e-09 deg/d
Q 3.086033426853215 1.2592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3077  
   data-arc span      31617 days (86.56 yr)  
   first obs. used      1934-08-10  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:22:15  

Additional Information
 Earth MOID = 1.62974 au 
 Jupiter MOID = 2.32368 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 11.65   n/a E2021B10 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. 2020-October); 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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