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 ]  
259P/Garradd (2008 R1)
Classification: Encke-type Comet          SPK-ID: 1002991
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454857.5 (2009-Jan-26.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3421712179073474 1.8614e-06  
a 2.725734249446032 1.905e-06 AU
q 1.793066441621314 6.2338e-06 AU
i 15.90312237027258 5.4019e-05 deg
node 51.99141863645769 0.00029611 deg
peri 256.503595389284 0.00034634 deg
M 40.45679881807635 0.00010416 deg
tp 2454672.780515142869
(2008-Jul-25.28051514)
0.00037354 JED
period 1643.704309072891
4.50
0.0017231
4.718e-06
d
yr
n .2190174948212267 2.296e-07 deg/d
Q 3.658402057270751 2.5568e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      1370 days (3.75 yr)  
   first obs. used      2008-07-15  
   last obs. used      2012-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   fit RMS      .94314  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:08  

Additional Information
 Earth MOID = .853785 AU 
 T_jup = 3.217 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.8 mag 0.2 11 2 parameter fit from 34 observations, autocmod 2.5c
comet total magnitude slope K1 15.   n/a 11 autocmod 2.5c
comet nuclear magnitude M2 19.5 mag 1. 11 from 4 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.6   259P/2008 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Dec-20 20:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin