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 ]  
13172 (1996 AO)
Classification: Main-belt Asteroid          SPK-ID: 2013172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914152614690257 3.4496e-08  
a 2.424785293359033 9.6406e-09 au
q 1.960644382424466 8.592e-08 au
i 10.71635842105738 4.922e-06 deg
node 302.5254627129955 2.1849e-05 deg
peri 97.18702163417888 2.6698e-05 deg
M 115.441117603843 1.4817e-05 deg
tp 2458158.251485650028
(2018-Feb-08.75148565)
5.5869e-05 TDB
period 1379.140019350349
3.78
8.2249e-06
2.252e-08
d
yr
n .2610322338188547 1.5567e-09 deg/d
Q 2.888926204293601 1.1486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1291  
   data-arc span      11544 days (31.61 yr)  
   first obs. used      1987-09-22  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4895  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:20:53  

Additional Information
 Earth MOID = 1.00222 au 
 Jupiter MOID = 2.60224 au 
 T_jup = 3.463 
[ 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 14.3   n/a MPO337370  
diameter diameter 4.947 km 1.626 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.181   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

13172 (1996 AO)          Discovered 1996-Jan-11 by Kobayashi, T. at Oizumi
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 AO = 1987 SF14 = 1998 PN 
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