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 ]  
39268 (2001 AK7)
Classification: Main-belt Asteroid          SPK-ID: 2039268
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06401155220518349 5.3757e-08  
a 3.068537455040719 2.7098e-08 au
q 2.872115609543819 1.6386e-07 au
i 11.85466425533351 5.7741e-06 deg
node 127.4493455441576 2.5856e-05 deg
peri 6.662956823026879 5.0406e-05 deg
M 192.0822639224328 4.2688e-05 deg
tp 2459916.276805143393
(2022-Dec-02.77680514)
0.00023477 TDB
period 1963.340249533443
5.38
2.6007e-05
7.12e-08
d
yr
n .1833609839586126 2.4289e-09 deg/d
Q 3.264959300537619 2.8833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      7638 days (20.91 yr)  
   first obs. used      1998-07-02  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53735  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:05:54  

Additional Information
 Earth MOID = 1.88686 au 
 Jupiter MOID = 1.77762 au 
 T_jup = 3.196 
[ 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 14.0   n/a MPO436045  
diameter diameter 6.459 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.117   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39268 (2001 AK7)          Discovered 2001-Jan-02 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-01 12:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin