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 ]  
305324 (2008 AP81)
Classification: Main-belt Asteroid          SPK-ID: 2305324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06378041866830125 6.2199e-08  
a 2.734573452557553 3.6973e-08 au
q 2.560161212874211 1.9232e-07 au
i 4.194796210749098 5.3936e-06 deg
node 233.5950476564009 7.7529e-05 deg
peri 160.6748453319863 9.1238e-05 deg
M 254.7815278782006 4.9613e-05 deg
tp 2459083.250027507600
(2020-Aug-21.75002751)
0.00023204 TDB
period 1651.706267902838
4.52
3.3498e-05
9.171e-08
d
yr
n .2179564290550825 4.4204e-09 deg/d
Q 2.908985692240896 3.9331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      6086 days (16.66 yr)  
   first obs. used      2002-11-27  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59726  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:36  

Additional Information
 Earth MOID = 1.56632 au 
 Jupiter MOID = 2.38844 au 
 T_jup = 3.346 
[ show covariance matrix ]

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 16.6   n/a MPO446455  

305324 (2008 AP81)          Discovered 2008-Jan-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 AP81 = 2006 SK292 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin