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
JPL Small-Body Database Browser
Search: [ help ]  
141P/Machholz 2
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1003394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


:
Orbital Elements at Epoch 2458689.5 (2019-Jul-25.0) TDB
Reference: JPL K202/6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7367226866443972 1.5908e-07  
a 3.054754622967889 9.0009e-08 au
q .8042475900955932 5.0608e-07 au
i 13.9781181959408 1.5436e-05 deg
node 241.8769596003456 6.0029e-05 deg
peri 153.6184954236666 8.3138e-05 deg
M 265.8625376138367 6.64e-06 deg
tp 2459199.444496717659
(2020-Dec-15.94449672)
4.9049e-05 TDB
period 1950.127124367233
5.34
8.6192e-05
2.36e-07
d
yr
n .1846033499568962 8.1591e-09 deg/d
Q 5.305261655840185 1.5632e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 4.754417799071018E-10 1.817E-10
A2 [EST] -1.421954077654512E-9 5.803E-11
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      2131 days (5.83 yr)  
   first obs. used      2015-05-24  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .88996  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Jul-06 15:28:44  

Additional Information
 Earth MOID = .0982316 au 
 Jupiter MOID = .55954 au 
 T_jup = 2.709 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 17.1   1. K202/6 2 parameter fit from 497 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a K202/6 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-31 03:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin