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 ]  
47473 (2000 AU2)
Classification: Main-belt Asteroid          SPK-ID: 2047473
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .20691960092058 4.4846e-08  
a 2.352379992795348 8.3995e-09 au
q 1.865626463472578 1.0465e-07 au
i 3.414007813026392 4.4099e-06 deg
node 83.77388098667193 7.5022e-05 deg
peri 331.5407010923442 7.5802e-05 deg
M 166.4961519023677 1.1038e-05 deg
tp 2457991.017357124862
(2017-Aug-25.51735712)
3.8844e-05 TDB
period 1317.830766225232
3.61
7.0582e-06
1.932e-08
d
yr
n .2731761992711528 1.4631e-09 deg/d
Q 2.839133522118118 1.0138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      10144 days (27.77 yr)  
   first obs. used      1991-08-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50828  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:35:45  

Additional Information
 Earth MOID = .877831 au 
 Jupiter MOID = 2.51554 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO290793  
rotation period rot_per 3.407 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

47473 (2000 AU2)          Discovered 2000-Jan-01 by Tombelli, M., Boattini, A. at San Marcello
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 AU2 = 1991 PJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 17:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin