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 ]  
21093 (1992 EK6)
Classification: Main-belt Asteroid          SPK-ID: 2021093
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04986870423760217 3.1476e-08  
a 2.741946036347386 1.3387e-08 au
q 2.605208740425313 8.65e-08 au
i 6.455312575763116 3.5654e-06 deg
node 95.18166598076667 3.9555e-05 deg
peri 3.370231206647806 6.1578e-05 deg
M 182.0925563213727 4.7838e-05 deg
tp 2460020.055559026076
(2023-Mar-16.55555903)
0.00022233 TDB
period 1658.390425654976
4.54
1.2146e-05
3.325e-08
d
yr
n .2170779536777771 1.5898e-09 deg/d
Q 2.87868333226946 1.4055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1326  
   data-arc span      10834 days (29.66 yr)  
   first obs. used      1990-11-14  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:38:48  

Additional Information
 Earth MOID = 1.62189 au 
 Jupiter MOID = 2.20873 au 
 T_jup = 3.339 
[ 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 14.51   n/a E2021B10  
diameter diameter 6.557 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.60480 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.078   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21093 (1992 EK6)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 EK6 = 1995 YP21 = 1999 UJ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 11:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin