Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
2123 Vltava (1973 SL2)
Classification: Main-belt Asteroid          SPK-ID: 2002123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07944962658535891 4.3989e-08  
a 2.858305793112604 1.2148e-08 au
q 2.63121446518304 1.2634e-07 au
i 1.011115595605106 3.2788e-06 deg
node 311.5969965597298 0.0002654 deg
peri 58.35582392582383 0.00026622 deg
M 216.2540170602315 2.263e-05 deg
tp 2459705.281794828892
(2022-May-05.78179483)
0.00011247 TDB
period 1765.068080161336
4.83
1.1253e-05
3.081e-08
d
yr
n .2039581385252257 1.3003e-09 deg/d
Q 3.085397121042168 1.3113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3032  
   data-arc span      31439 days (86.08 yr)  
   first obs. used      1934-08-10  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:12:24  

Additional Information
 Earth MOID = 1.63062 au 
 Jupiter MOID = 2.32582 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-August); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-04 00:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin