Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
4384 (1990 AA)
Classification: Main-belt Asteroid          SPK-ID: 2004384
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805479232130907 9.8091e-08  
a 2.62006865273818 2.7124e-08 AU
q 2.147020698810581 2.6089e-07 AU
i 13.28322954240453 1.204e-05 deg
node 316.4904482857604 3.2374e-05 deg
peri 44.16634300482708 4.1806e-05 deg
M 353.3324086712891 3.1041e-05 deg
tp 2456829.190221812405
(2014-Jun-20.69022181)
0.00013385 JED
period 1549.057124720727
4.24
2.4055e-05
6.586e-08
d
yr
n .2323994346334406 3.6088e-09 deg/d
Q 3.093116606665779 3.2021e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      28814 days (78.89 yr)  
   first obs. used      1933-08-26  
   last obs. used      2012-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58858  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 14:45:05  

Additional Information
 Earth MOID = 1.16062 AU 
 T_jup = 3.344 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2 mag n/a MPO234866  

4384 (1990 AA)          Discovered 1990-Jan-03 by Hioki and Hayakawa at Okutama
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 AA = 1933 QT = 1950 QD1 = 1982 BY3 = 1984 QM1 = 1986 AO1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-21 14:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin