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 ]  
71391 (2000 AK161)
Classification: Main-belt Asteroid          SPK-ID: 2071391
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275692006816438 6.5224e-08  
a 2.992520497413384 2.6479e-08 au
q 2.610767049534924 1.944e-07 au
i 14.03777708485615 6.6271e-06 deg
node 316.9549031780816 2.7054e-05 deg
peri 193.4604854481522 3.5983e-05 deg
M 316.8979024466048 2.4895e-05 deg
tp 2459226.886243075170
(2021-Jan-12.38624308)
0.00013195 TDB
period 1890.837154876267
5.18
2.5096e-05
6.871e-08
d
yr
n .1903918584800381 2.527e-09 deg/d
Q 3.374273945291844 2.9857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      674  
   data-arc span      8187 days (22.41 yr)  
   first obs. used      1997-08-06  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46994  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:26:48  

Additional Information
 Earth MOID = 1.62454 au 
 Jupiter MOID = 1.66873 au 
 T_jup = 3.198 
[ 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 14.5   n/a MPO412622  
diameter diameter 6.226 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71391 (2000 AK161)          Discovered 2000-Jan-03 by LINEAR at Socorro
Reference: 20031109/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-Feb-20 11:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin