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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5186201805470282 8.5696e-08  
a 2.240191911943214 1.1784e-08 AU
q 1.078383178111232 1.8915e-07 AU
i 37.09104965600016 1.9365e-05 deg
node 154.290842031578 1.7993e-05 deg
peri 248.3943183654962 3.1259e-05 deg
M 311.4513726648944 3.0742e-05 deg
tp 2457165.658419665261
(2015-May-23.15841967)
0.00010568 JED
period 1224.6902609438
3.35
9.6635e-06
2.646e-08
d
yr
n .2939518762258861 2.3194e-09 deg/d
Q 3.402000645775196 1.7896e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      12048 days (32.99 yr)  
   first obs. used      1981-08-28  
   last obs. used      2014-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .66585  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:46:17  

Additional Information
 Earth MOID = .300356 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-Nov-28 08:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin