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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
C/2014 W7 (Christensen)
Classification: Halley-type Comet*          SPK-ID: 1003359
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457002.5 (2014-Dec-11.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8693006183748551 0.00029883  
a 11.38688838436122 0.026338 au
q 1.488259270470557 3.9692e-05 au
i 98.31374910623485 0.00058902 deg
node 151.2609968284786 0.0018398 deg
peri 33.24015838136053 0.0029277 deg
M 359.4710349160588 0.0017583 deg
tp 2457023.121987893577
(2014-Dec-31.62198789)
0.0031101 TDB
period 14034.79334850289
38.43
48.694
0.1333
d
yr
n .0256505379923105 8.8995e-05 deg/d
Q 21.28551749825188 0.049234 au
  Orbit Determination Parameters
   # obs. used (total)      46  
   data-arc span      83 days  
   first obs. used      2014-11-22  
   last obs. used      2015-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .32006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:03  

Additional Information
 Earth MOID = .594012 au 
 Jupiter MOID = 2.09992 au 
 T_jup = 0.246 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.3   0.4 11 from 33 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 11 autocmod 2.9c
comet nuclear magnitude M2 18.4   0.3 11 from 7 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.0   C/2014 W7       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 19:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin