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 ]  
187703 (2008 EC20)
Classification: Main-belt Asteroid          SPK-ID: 2187703
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074343519866996 3.7156e-08  
a 2.775416107211295 1.8151e-08 au
q 2.477241076239602 1.041e-07 au
i 2.469060998034003 4.6203e-06 deg
node 294.6946040826285 9.8076e-05 deg
peri 78.93312517550369 0.00010148 deg
M 79.50828732486437 2.4032e-05 deg
tp 2458827.507171972498
(2019-Dec-10.00717197)
0.0001122 TDB
period 1688.848076191785
4.62
1.6567e-05
4.536e-08
d
yr
n .2131630459098315 2.0911e-09 deg/d
Q 3.073591138182989 2.0101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      7033 days (19.26 yr)  
   first obs. used      2001-11-12  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:30  

Additional Information
 Earth MOID = 1.47768 au 
 Jupiter MOID = 2.40533 au 
 T_jup = 3.326 
[ 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 16.2   n/a MPO449935  

187703 (2008 EC20)          Discovered 2008-Mar-02 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2008 EC20 = 2001 VN102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 17:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin