API VERSION: 1.2
API SOURCE: NASA/JPL Horizons API

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JPL/HORIZONS                   12P/Pons-Brooks             2026-Apr-06 13:46:12
Rec #:90000223 (+COV) Soln.date: 2022-May-09_10:46:48    # obs: 430 (1812-1954)
 
IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs):
 
  EPOCH=  2414270.5 ! 1897-Dec-12.0000000 (TDB)    RMSW= n.a.
   EC= .9546793966627336   QR= .7745662359217889   TP= 2409204.3283676389
   OM= 255.7625218419923   W= 199.1315081578012    IN= 73.9093741705598
   A= 17.09081916137854    MA= 70.670742511341     ADIST= 33.4070720868353
   PER= 70.656565071711    N= .013949536           ANGMOM= .021166473
   DAN= 15.4416            DDN= .79604             L= 81.25434970000001
   B= -18.3546696          MOID= .18651199         TP= 1884-Jan-28.8283676389
 
Comet physical (GM= km^3/s^2; RAD= km):
   GM= n.a.                RAD= n.a.
   M1=  5.       M2=  11.      k1=  15.    k2=  10.     PHCOF= n.a.
Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au):
   AMRAT=  0.                                      DT=  0.
   A1= -9.793811291456E-10 A2= -2.709762193263E-10 A3= 0.
 Standard model:
   ALN=  .1112620426   NK=  4.6142   NM=  2.15     NN=  5.093    R0=  2.808
 
COMET comments 
1: soln ref.= JPL#J542/1, data arc: 1812-08-18 to 1954-09-03
2: k1=15.0, k2=10.0;
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