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 ]  
C/2011 Q1 (PANSTARRS)
Classification: Comet          SPK-ID: 1003143
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455825.5 (2011-Sep-21.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9979126544659841 0.0001041  
a 3248.18545625462 162.01 au
q 6.780085405768498 9.2982e-05 au
i 94.86201443804366 0.00038725 deg
node 142.2439066896546 0.00030109 deg
peri 135.9264482236275 0.0058653 deg
M .0004447991305403581 3.3077e-05 deg
tp 2455741.954881000737
(2011-Jun-29.45488100)
0.073491 TDB
period 67617584.6009343
185126.86
5.0589e+06
1.385e+04
d
yr
n 5.324058854285454E-6 3.9832e-07 deg/d
Q 6489.590827103472 323.68 au
  Orbit Determination Parameters
   # obs. used (total)      59  
   data-arc span      313 days  
   first obs. used      2011-08-17  
   last obs. used      2012-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .38983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:54  

Additional Information
 Earth MOID = 6.01858 au 
 Jupiter MOID = 2.63288 au 
 T_jup = -0.272 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.5   0.8 13 from 28 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 13 autocmod 2.9c
comet nuclear magnitude M2 11.3   0.4 13 from 10 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 13 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 13 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.5   C/2011 Q1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 01:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin