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 ]  
177P/Barnard
Classification: Halley-type Comet* [NEO]          SPK-ID: 1000909
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453902.5 (2006-Jun-16.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9544043743061912 3.3339e-09  
a 24.28395889773419 2.3059e-07 AU
q 1.107242300264926 8.7982e-08 AU
i 31.21782155389837 1.1982e-05 deg
node 272.0666891559548 7.3351e-06 deg
peri 60.45726234400676 1.7017e-05 deg
M 359.3931097365697 1.0499e-07 deg
tp 2453976.186059051720
(2006-Aug-28.68605905)
1.1939e-05 JED
period 43709.68337617109
119.67
0.00062257
1.705e-06
d
yr
n .008236161239187991 1.1731e-10 deg/d
Q 47.46067549520345 4.5066e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      1729  
   data-arc span      42903 days (117.46 yr)  
   first obs. used      1889-06-24  
   last obs. used      2006-12-11  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .86764  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:11:53  

Additional Information
 Earth MOID = .310655 AU 
 T_jup = 1.317 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.7 mag 1. 26 2 parameter fit from 209 observations, autocmod 2.5a
comet total magnitude slope K1 13.   n/a 26 autocmod 2.5a
comet nuclear magnitude M2 18.3 mag 0.8 26 from 1359 observations, autocmod 2.5a
comet nuclear magnitude slope K2 5.   n/a 26 autocmod 2.5a
comet nuclear phase coefficient PC 0.03   n/a 26 autocmod 2.5a

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2006.7   177P/2006 M3       
 1887.0   177P/1889 M1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 23:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin