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 ]  
97P/Metcalf-Brewington
Classification: Jupiter-family Comet          SPK-ID: 1000128
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 2457164.5 (2015-May-22.0) TDB
Reference: JPL K113/8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4573932742257172 3.1316e-06  
a 4.79909570735725 5.2035e-06 au
q 2.604021608446533 1.3028e-05 au
i 17.86957001570563 3.4972e-05 deg
node 185.1974637230118 0.00013571 deg
peri 228.2912964551788 0.00019712 deg
M 128.5590889656395 0.00027213 deg
tp 2455793.183098166210
(2011-Aug-19.68309817)
0.001041 TDB
period 3840.055873389946
10.51
0.0062455
1.71e-05
d
yr
n .09374863592341359 1.5247e-07 deg/d
Q 6.994169806267966 7.5836e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -9.814445114173195E-8 9.124E-9
A2 [EST] 6.400189029910006E-9 2.693E-9
A3 [EST] -2.042375094472221E-9 7.871E-10
DT [EST] 218.9029919228531 5.449
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7693 days (21.06 yr)  
   first obs. used      1991-01-05  
   last obs. used      2012-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      2  
   norm. resid. RMS      .74905  
   source      ORB  
   producer      Ryan S. Park  
   solution date      2015-May-12 21:40:11  

Additional Information
 Earth MOID = 1.65073 au 
 Jupiter MOID = .105403 au 
 T_jup = 2.710 
[ 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 12.9   0.9 K113/8 2 parameter fit from 56 observations, autocmod 2.6
comet total magnitude slope K1 9.   n/a K113/8 autocmod 2.6
comet nuclear magnitude M2 16.6   0.8 K113/8 from 66 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K113/8 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K113/8 autocmod 2.6
diameter diameter 3.4 km n/a DASTCOM value unverified

97P/Metcalf-Brewington          Discovered 1906-Nov-15 by Metcalf, Joel H. at Taunton, Massachusetts
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1990.6   97P/1991 A1   1991 I   1991a 
 1906.5   97P/1906 V2   1906 VI   1906h 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 11:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin