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

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL K074/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5632234095202744 1.548e-07  
a 3.358221347550548 1.1331e-07 AU
q 1.466792470259358 5.1326e-07 AU
i 4.261187225367249 1.0351e-05 deg
node 159.2804324225749 0.00023551 deg
peri 219.7488417157946 0.0002244 deg
M 55.77498981764651 2.5968e-05 deg
tp 2456816.243362243996
(2014-Jun-07.74336224)
0.00015638 JED
period 2247.824517800184
6.15
0.00011377
3.115e-07
d
yr
n .1601548506786069 8.106e-09 deg/d
Q 5.249650224841738 1.7714e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.668540211233309E-9 1.048E-11
A2 [EST] -1.49777963572744E-9 1.176E-12
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      30105 days (82.42 yr)  
   first obs. used      1932-10-21  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .97741  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-May-12 21:59:19  

Additional Information
 Earth MOID = .470805 AU 
 T_jup = 2.873 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.6 mag 01. K074/9 2 parameter fit from 370 observations, autocmod 2.6
comet total magnitude slope K1 12.   n/a K074/9 autocmod 2.6
comet nuclear magnitude M2 15.6 mag 01. K074/9 from 162 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K074/9 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K074/9 autocmod 2.6

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (AU) Minimum Distance (AU) Maximum Distance (AU) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1922-Jan-11 10:10 00:04 Jupiter 0.0875863020588218 0.0875776662485249 0.0875949379753976 5.61390781588838 3.48920090526765 2423065.923584981 3.60938623977306 28.3719184118457 4.62944774214007 4.27057236136313 42547.8707120968 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
1958-Mar-28 09:04 < 00:01 Jupiter 1.32906811650283 1.32905703861586 1.32907919430982 7.08497737302039 6.99444731432166 2436290.878081520 0.502345251288676 105.615487192431 18.2282706742027 -1.29521909713508 223821.438360199 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
1969-May-04 20:42 < 00:01 Jupiter 1.60115502836535 1.60114032216564 1.60116973446626 7.90066032514878 7.83341682801957 2440346.362292968 0.47692175879257 142.688486385377 16.183360575817 0.907430185468319 222525.12432343 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2005-Sep-20 04:35 < 00:01 Jupiter 0.390368912176287 0.390366908123188 0.390370916233792 4.7495181497526 4.26829267949089 2453633.690683173 0.797202858704542 13.3232535827111 6.3711607257792 -57.5542303185573 633346.650517104 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2016-Dec-31 23:15 < 00:01 Jupiter 0.33293022458928 0.332926375671876 0.332934073499838 4.80769564837127 4.24566236902545 2457754.468769415 0.873500715422416 15.2046596320129 10.1838997252738 18.1789044880208 274340.386906217 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2053-Jul-03 10:51 00:09 Jupiter 0.24819431057297 0.248120420117159 0.248268201184622 4.63934229904906 3.83379942888081 2471086.952404503 9.44733054666365 317.254305230311 7.35126372508623 -28.1702836661531 176113.314932661 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2064-Oct-18 02:12 00:06 Jupiter 0.706597189680511 0.706075912922614 0.70711823154269 5.41127530708685 5.18501988453451 2475211.591838864 5.61890929554865 3166.90202791893 12.289317756523 -8.66147195152236 111660.843692561 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2112-Dec-19 16:06 01:31 Jupiter 1.59380059701539 1.59102218457741 1.59657473047532 7.9905747216526 7.92378621053891 2492805.171109627 91.1465488136841 30950.1688259479 41.5756086841349 -1.38752223547976 16807.3252452396 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2124-Apr-06 15:06 01:59 Jupiter 0.321668550457498 0.320606547299418 0.322729912840777 4.54042649492427 3.91778538968763 2496931.128925306 118.856720793605 4600.66514324514 14.5480005461521 -22.8098760205454 92795.4236901314 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02
2183-Aug-06 20:14 1_18:14 Jupiter 0.0674561963590223 0.0555084665958094 0.0800028666177899 5.99903495631466 3.29775073427045 2518602.342747870 2533.83933813486 45086.3209713593 13.20538183293 -24.3188156628139 26276.7141922998 T K074/9 CATAB v2.0c-linF95 2015-May-12 22:02:15 2015-May-12 22:02

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 
 1959.0       1960 VI   1960h 
 1952.9       1953 V   1953b 
 1946.7       1946 IV   1946e 
 1940.6       1939 VII   1939g 
 1934.4       1932 VIII   1932m 
 1922.1       1925 IX   1925g 
 1909.8       1911 I   1910d 
 1903.7       1903 V   1903d 
 1897.5   16P/1896 M1   1896 VI   1896c 
 1891.3   16P/1889 N1   1889 V   1889d 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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