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 ]  
11312 (1994 AR2)
Classification: Main-belt Asteroid          SPK-ID: 2011312
[ 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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1764271281571165 2.958e-08  
a 2.366354118955226 7.5547e-09 au
q 1.948865057545192 6.9338e-08 au
i .9440570444932772 3.2e-06 deg
node 57.43583295979012 0.00021513 deg
peri 199.8239303840851 0.00021534 deg
M 217.5725057338205 1.087e-05 deg
tp 2459126.528608483438
(2020-Oct-04.02860848)		 4.1334e-05 TDB
period 1329.590891349447
3.64		 6.3672e-06
1.743e-08		 d
yr
n .2707599776308816 1.2966e-09 deg/d
Q 2.78384318036526 8.8876e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1933  
   data-arc span      14487 days (39.66 yr)  
   first obs. used      1980-04-08  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54307  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:14:33  

Additional Information
 Earth MOID = .933544 au 
 Jupiter MOID = 2.27059 au 
 T_jup = 3.526 
[ 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 MPO365386  
diameter diameter 3.628 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.307   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11312 (1994 AR2)          Discovered 1994-Jan-14 by Kobayashi, T. at Oizumi
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 AR2 = 1980 GY1 = 1997 CQ14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-22 02:47 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin