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 ]  
21346 Marieladislav (1997 EL11)
Classification: Main-belt Asteroid          SPK-ID: 2021346
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489897464517833 1.7714e-08  
a 2.610513868267157 1.1191e-08 au
q 2.221574068925169 4.5058e-08 au
i 15.43604842532786 4.6987e-07 deg
node 55.18086809383089 3.8226e-06 deg
peri 269.9379339586947 6.443e-06 deg
M 89.02516467694511 5.5076e-06 deg
tp 2458819.523911216366
(2019-Dec-02.02391122)
2.2604e-05 TDB
period 1540.591275060304
4.22
9.9062e-06
2.712e-08
d
yr
n .2336765148731018 1.5026e-09 deg/d
Q 2.999453667609145 1.2858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2602  
   data-arc span      12551 days (34.36 yr)  
   first obs. used      1986-11-06  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37172  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:11:15  

Additional Information
 Earth MOID = 1.27297 au 
 Jupiter MOID = 2.41083 au 
 T_jup = 3.344 
[ 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 13.35   n/a E2021B10  
diameter diameter 6.334 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21346 Marieladislav           Discovered 1997 Mar. 9 by P. Pravec at Ondřejov.
Marie Pravcová (b. 1948) and Ladislav Pravec (b. 1945), the parents of the discoverer, established a nice family environment in which the discoverer's interest in science flourished. This naming is on the occasion of the 35th anniversary of their marriage.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020128/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1997 EL11 = 1986 VD6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 16:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin