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 ]  
16P/Brooks 2
Classification: Jupiter-family Comet          SPK-ID: 1000008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457111.5 (2015-Mar-30.0) TDB
Reference: JPL K212/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5630632502431984 6.3632e-07  
a 3.356811571836155 1.1881e-06 au
q 1.46671433774411 1.8085e-06 au
i 4.259482438591073 3.2731e-05 deg
node 159.2908192554265 0.00042635 deg
peri 219.7163700336009 0.00042357 deg
M 47.32913296538425 2.4209e-05 deg
tp 2456816.164998552871
(2014-Jun-07.66499855)
0.00017921 TDB
period 2246.409216892428
6.15
0.0011926
3.265e-06
d
yr
n .160255752733247 8.5081e-08 deg/d
Q 5.2469088059282 1.8571e-06 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      2448 days (6.70 yr)  
   first obs. used      2014-05-05  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .71684  
   source      ORB  
   producer      Javier Roa  
   solution date      2021-Feb-03 22:14:54  

Additional Information
 Earth MOID = .472329 au 
 Jupiter MOID = .247946 au 
 T_jup = 2.874 
[ 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 12.1   0.8 K212/2 2 parameter fit from 101 observations, autocmod 2.8
comet total magnitude slope K1 13.5   n/a K212/2 autocmod 2.8
comet nuclear magnitude M2 15.6   1. K212/2 from 107 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a K212/2 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a K212/2 autocmod 2.8

16P/Brooks 2          Discovered 1889-Jul-07 by Brooks, William R. at Geneva, New York
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1996.0       1994 XXIII   1994j 
 1989.8       1987 XXIV   1987m 
 1977.5       1980 IX   1980f 
 1971.4       1974 I   1973j 
 1959.1       1960 VI   1960h 
 1952.9       1953 V   1953b 
 1946.8       1946 IV   1946e 
 1940.6       1939 VII   1939g 
 1934.5       1932 VIII   1932m 
 1922.2       1925 IX   1925g 
 1909.9       1911 I   1910d 
 1903.7       1903 V   1903d 
 1897.6   16P/1896 M1   1896 VI   1896c 
 1891.4   16P/1889 N1   1889 V   1889d 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-05 11:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin