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
JPL Small-Body Database Browser
Search: [ help ]  
447929 (2008 AY20)
Classification: Main-belt Asteroid          SPK-ID: 2447929
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700839016785746 8.5919e-08  
a 3.119728429130014 5.606e-08 au
q 2.589112845726011 2.6921e-07 au
i 15.20620263034128 2.44e-05 deg
node 322.5850896958617 3.3648e-05 deg
peri 248.5641959645399 8.5024e-05 deg
M 30.15987451063304 7.5361e-05 deg
tp 2458831.883278013396
(2019-Dec-14.38327801)
0.00042227 TDB
period 2012.674817124206
5.51
5.425e-05
1.485e-07
d
yr
n .1788664502268593 4.8212e-09 deg/d
Q 3.650344012534017 6.5595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      4048 days (11.08 yr)  
   first obs. used      2008-01-10  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:22:27  

Additional Information
 Earth MOID = 1.63211 au 
 Jupiter MOID = 1.60574 au 
 T_jup = 3.141 
[ 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 15.9   n/a MPO472484  

447929 (2008 AY20)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

[ 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-Aug-11 05:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin