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 ]  
27P/Crommelin
Classification: Halley-type Comet* [NEO]          SPK-ID: 1000016
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


:
Orbital Elements at Epoch 2456364.5 (2013-Mar-13.0) TDB
Reference: JPL K113/4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9189810923126022 0.00017002  
a 9.235960944226864 0.022659 AU
q .748287467144728 0.00027109 AU
i 28.96687278723059 0.0011605 deg
node 250.6264098390235 0.0041998 deg
peri 196.0253968913816 0.017961 deg
M 20.61577251683614 0.075722 deg
tp 2455777.391090241354
(2011-Aug-03.89109024)
0.0046592 JED
period 10252.30596333479
28.07
37.729
0.1033
d
yr
n .03511405153996224 0.00012922 deg/d
Q 17.723634421309 0.043483 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -3.653645033749881E-8 1.055E-7
A2 [EST] -1.713114322066723E-9 7.261E-9
A3 [EST] 2.081362723681325E-9 1.936E-9
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      259 days  
   first obs. used      2011-05-12  
   last obs. used      2012-01-26  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      6  
   fit RMS      .70281  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2013-Mar-03 19:22:50  

Additional Information
 Earth MOID = .215189 AU 
 T_jup = 1.483 
[ 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 12. mag n/a MPC data tape  
comet total magnitude slope K1 20.0   n/a MPC data tape  
comet nuclear magnitude M2 16. mag n/a MPC data tape  
comet nuclear magnitude slope K2 15.0   n/a MPC data tape  

27P/Crommelin          Discovered 1818-Feb-23 by Pons, Jean Louis at Marseilles Observatory, France
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1983.5       1984 IV   1983n 
 1955.4   27P/1956 S1   1956 VI   1956g 
 1927.4   27P/1928 W1   1928 III   1928b 
 1871.2   27P/1873 V1   1873 VII   1873g 
 1815.1   27P/1818 D1   1818 I   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 19:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin