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 ]  
82P/Gehrels 3
Classification: Encke-type Comet          SPK-ID: 1000031
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2455600.5 (2011-Feb-08.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228436023814659 4.31e-07  
a 4.142151524005956 3.0939e-07 AU
q 3.633314709187186 1.922e-06 AU
i 1.125906251496336 2.67e-05 deg
node 239.4617259875922 0.0016924 deg
peri 226.3510356473145 0.0016897 deg
M 45.78576051994936 0.00011331 deg
tp 2455208.879577925085
(2010-Jan-12.37957792)
0.00093338 JED
period 3079.196465144254
8.43
0.00034499
9.445e-07
d
yr
n .1169136182361572 1.3099e-08 deg/d
Q 4.650988338824726 3.474e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      12922 days (35.38 yr)  
   first obs. used      1975-10-27  
   last obs. used      2011-03-14  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .85149  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2011-Mar-16 14:54:31  

Additional Information
 Earth MOID = 2.64987 AU 
 T_jup = 3.027 
[ 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
comet total magnitude M1 5. mag n/a ICQ 2003 Handbook  
comet total magnitude slope K1 20.0   n/a ICQ 2003 Handbook  
diameter diameter 1.46 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  

82P/Gehrels 3          Discovered 1975-Oct-27 by Gehrels, Tom at Palomar Mountain Observatory, California (675)
discovered on plate/photo taken on discovery date as well as 10/28,30
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1993.2       1993 XIV   1992v 
 1984.7   82P/1984 P1   1985 IV   1984l 
 1976.3   82P/1975 U1   1977 VII   1975o 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-02 10:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin