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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
154989 (2005 AG4)
Classification: Jupiter Trojan          SPK-ID: 2154989
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230964700889465 7.916e-08  
a 5.171121899426069 1.2492e-07 au
q 4.534575047207071 4.1946e-07 au
i 8.575182214005654 7.6298e-06 deg
node 341.5698857679978 4.2964e-05 deg
peri 225.9222682055415 4.9482e-05 deg
M 30.22672583149486 2.3053e-05 deg
tp 2458639.868053259725
(2019-Jun-05.36805326)
0.00027818 TDB
period 4295.122850891937
11.76
0.00015564
4.261e-07
d
yr
n .08381599607220581 3.0372e-09 deg/d
Q 5.807668751645067 1.403e-07 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      6766 days (18.52 yr)  
   first obs. used      2000-10-30  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56751  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:29:07  

Additional Information
 Earth MOID = 3.53783 au 
 Jupiter MOID = .356891 au 
 T_jup = 2.963 
[ 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 12.8   n/a MPO436784  
diameter diameter 14.554 km 1.082 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.063   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

154989 (2005 AG4)          Discovered 2005-Jan-06 by CSS at Catalina
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2005 AG4 = 2005 UE218 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-24 10:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin