Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
49P/Arend-Rigaux
Classification: Jupiter-family Comet          SPK-ID: 1000002
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

:
Orbital Elements at Epoch 2455735.5 (2011-Jun-23.0) TDB
Reference: JPL K183/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6004829876132673 6.4299e-08  
a 3.563824116053073 2.0177e-07 au
q 1.423808363517312 2.8235e-07 au
i 19.04974290079465 5.218e-06 deg
node 118.8832638538708 1.9045e-05 deg
peri 332.7826069103319 2.2906e-05 deg
M 342.7025874571142 5.4208e-06 deg
tp 2455853.573235203689
(2011-Oct-19.07323520)
3.5313e-05 TDB
period 2457.382835030452
6.73
0.00020869
5.714e-07
d
yr
n .1464973201847643 1.2441e-08 deg/d
Q 5.703839868588833 3.2292e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -4.359147493986471E-10 4.736E-11
A2 [EST] -2.385543067821697E-12 1.124E-12
  Orbit Determination Parameters
   # obs. used (total)      3252  
   data-arc span      5481 days (15.01 yr)  
   first obs. used      2004-06-24  
   last obs. used      2019-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57681  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Sep-03 14:42:19  

Additional Information
 Earth MOID = .463391 au 
 Jupiter MOID = .157098 au 
 T_jup = 2.711 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 11.9   01. K183/9 from 828 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 12.   n/a K183/9 autocmod 2.8
comet nuclear magnitude M2 15.3   0.6 K183/9 from 2166 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a K183/9 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a K183/9 autocmod 2.8
diameter diameter 8.48 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A.; (2004) Comets II, pp. 223-264  
rotation period rot_per 13.450 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Eisner, N.; Knight, M.M.; Schleigcher, D.G. (2017) Astron. J. 154, A196.]
geometric albedo albedo 0.028   0.005 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

49P/Arend-Rigaux          Discovered 1951-Feb-05 by Arend, Silvio and Rigaux, F. at Uccle, Belgium
discovered on plate/photo taken on discovery date as well as 2/6
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.6       1991 XVII   
 1984.9       1984 XXI   1984k 
 1978.2       1978 III   1977k 
 1971.4       1971 IV   1970j 
 1964.7       1964 V   1963g 
 1958.0   49P/1958 B1   1957 VII   1958b 
 1951.2   49P/1951 C2   1950 VII   1951b 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-18 08:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin