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 ]  
4596 (1981 QB)
Classification: Amor [NEO]          SPK-ID: 2004596
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 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5186920216418459 8.6737e-08  
a 2.240079745882823 1.1782e-08 AU
q 1.078168253851909 1.9156e-07 AU
i 37.08990586251845 2.1463e-05 deg
node 154.2955800683043 1.8099e-05 deg
peri 248.3977915413615 3.2592e-05 deg
M 252.6579199803555 3.0887e-05 deg
tp 2457165.641463278901
(2015-May-23.14146328)
0.00010747 JED
period 1224.598282019016
3.35
9.6616e-06
2.645e-08
d
yr
n .293973954794761 2.3193e-09 deg/d
Q 3.401991237913737 1.7894e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      11979 days (32.80 yr)  
   first obs. used      1981-08-28  
   last obs. used      2014-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67035  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:09:45  

Additional Information
 Earth MOID = .298847 AU 
 T_jup = 3.218 
[ 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 16.0 mag n/a PDS3 (MPC 17272)  

4596 (1981 QB)          Discovered 1981-Aug-28 by Kowal, C. T. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-01 07:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin