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 ]  
117654 (2005 EA172)
Classification: Main-belt Asteroid          SPK-ID: 2117654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242740930306681 4.1328e-08  
a 2.342243126770491 1.1688e-08 au
q 2.051162986533772 9.3889e-08 au
i 1.871200042209339 4.6144e-06 deg
node 244.8891661040545 0.0001785 deg
peri 351.0441233256153 0.00018014 deg
M 44.14103905035157 2.4765e-05 deg
tp 2458839.958824778203
(2019-Dec-22.45882478)
8.9856e-05 TDB
period 1309.321763221762
3.58
9.8007e-06
2.683e-08
d
yr
n .2749515131514898 2.0581e-09 deg/d
Q 2.63332326700721 1.3141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      8134 days (22.27 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:00:08  

Additional Information
 Earth MOID = 1.03949 au 
 Jupiter MOID = 2.36343 au 
 T_jup = 3.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457253.5 (2015-Aug-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1240631996402043 4.1373e-08  
q 2.051592275721177 9.3953e-08 au
tp 2457529.947476310150
(2016-May-21.44747631)
8.8734e-05 TDB
node 244.9540442641911 0.00017853 deg
peri 350.6652865214695 0.00018018 deg
i 1.87071533938874 4.6149e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      8134 days (22.27 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:00:08  

Additional Information
 Jupiter MOID = 2.36343 au 
 T_jup = 3.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.711719980083711E-15 -3.866547275303955E-15 1.507644231540802E-13 -9.069476123586363E-15 3.185668591884148E-14 -8.312724007603362E-17
q -3.866547275303955E-15 8.827151683534575E-15 -2.776589410126331E-13 2.370469797607744E-14 -6.234663141031734E-14 1.650837149209319E-16
tp 1.507644231540802E-13 -2.776589410126331E-13 7.873680029004096E-9 1.42520440387337E-11 2.193034177405287E-9 -4.968410131992729E-13
node -9.069476123586363E-15 2.370469797607744E-14 1.42520440387337E-11 3.187418546295004E-8 -3.185276639740327E-8 1.30126316997056E-10
peri 3.185668591884148E-14 -6.234663141031734E-14 2.193034177405287E-9 -3.185276639740327E-8 3.2464115230151E-8 -1.301661496645933E-10
i -8.312724007603362E-17 1.650837149209319E-16 -4.968410131992729E-13 1.30126316997056E-10 -1.301661496645933E-10 2.129697924291954E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO469217  

117654 (2005 EA172)          Discovered 2005-Mar-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-21 19:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin