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 ]  
79139 (1991 SP)
Classification: Main-belt Asteroid          SPK-ID: 2079139
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980867534695908 6.8758e-08  
a 2.275364350645283 1.7549e-08 AU
q 1.824644813465515 1.584e-07 AU
i 6.365524665968673 8.9989e-06 deg
node 76.92420044185521 5.7957e-05 deg
peri 267.8666940227002 6.3665e-05 deg
M 277.1051884219449 2.8162e-05 deg
tp 2457289.168701753540
(2015-Sep-23.66870175)
9.9685e-05 JED
period 1253.645803072019
3.43
1.4503e-05
3.971e-08
d
yr
n .2871624498066611 3.3221e-09 deg/d
Q 2.726083887825051 2.1025e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      8679 days (23.76 yr)  
   first obs. used      1991-09-15  
   last obs. used      2015-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56488  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 13:58:33  

Additional Information
 Earth MOID = .831215 AU 
 T_jup = 3.575 
[ 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 15.6 mag n/a MPO257359  

79139 (1991 SP)          Discovered 1991-Sep-30 by McNaught, R. H. at Siding Spring
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ 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 2015-Aug-03 13:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin