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 ]  
186332 (2002 EL21)
Classification: Main-belt Asteroid          SPK-ID: 2186332
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226352721624258 3.6541e-08  
a 3.073836502163418 2.6543e-08 au
q 2.790233504387783 1.0871e-07 au
i 11.62885127469029 4.6821e-06 deg
node 64.88269162146875 2.6661e-05 deg
peri 226.2150024327744 4.4666e-05 deg
M 104.4204981240924 3.3341e-05 deg
tp 2458825.543748994425
(2019-Dec-08.04374899)
0.00018345 TDB
period 1968.428173151789
5.39
2.5497e-05
6.981e-08
d
yr
n .1828870389634683 2.3689e-09 deg/d
Q 3.357439499939052 2.8992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      6865 days (18.80 yr)  
   first obs. used      2002-03-10  
   last obs. used      2020-12-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:23:51  

Additional Information
 Earth MOID = 1.78824 au 
 Jupiter MOID = 1.78591 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457618.5 (2016-Aug-18.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09336776200638716 3.6198e-08  
q 2.787256537961641 1.0832e-07 au
tp 2456865.175519919720
(2014-Jul-26.67551992)
0.00018921 TDB
node 64.92268411311821 2.6628e-05 deg
peri 227.9100388553738 4.4466e-05 deg
i 11.63755365306835 4.689e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      6865 days (18.80 yr)  
   first obs. used      2002-03-10  
   last obs. used      2020-12-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:23:51  

Additional Information
 Jupiter MOID = 1.78591 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.310265837901266E-15 -3.825758215157252E-15 2.766899207483946E-13 6.955484082533727E-15 3.095294288283295E-14 -1.530944932897223E-15
q -3.825758215157252E-15 1.173374746243397E-14 -2.42578330418443E-12 -1.806702770956255E-14 -3.573757676347117E-13 5.883496117375689E-15
tp 2.766899207483946E-13 -2.42578330418443E-12 3.580094846720155E-8 -5.293462751196933E-11 6.777611563381976E-9 -1.558964848126571E-11
node 6.955484082533727E-15 -1.806702770956255E-14 -5.293462751196933E-11 7.090402209432295E-10 -7.042645311784552E-10 -4.808073834776845E-11
peri 3.095294288283295E-14 -3.573757676347117E-13 6.777611563381976E-9 -7.042645311784552E-10 1.977196850116735E-9 4.427608016493603E-11
i -1.530944932897223E-15 5.883496117375689E-15 -1.558964848126571E-11 -4.808073834776845E-11 4.427608016493603E-11 2.198698367169768E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.95   n/a E2021B55  

186332 (2002 EL21)          Discovered 2002-Mar-10 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2002 EL21 = 2004 RZ293 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-30 10:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin