******************************************************************************* JPL/HORIZONS Kohoutek (C/1973 E1) 2024-Apr-25 22:47:17 Rec #:90002022 (+COV) Soln.date: 2021-Apr-15_23:29:22 # obs: 812 (1973-1974) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2442022.5 ! 1973-Dec-06.0000000 (TDB) RMSW= n.a. EC= 1.000007809885518 QR= .1424250322974156 TP= 2442044.9306834741 OM= 258.4894909953879 W= 37.79756893411028 IN= 14.3041449344601 A= -18236.50704838456 MA= -8.9770592705456E-6 ADIST= 9.999999E99 PER= 9.999999E99 N= 4.E-7 ANGMOM= .00918101 DAN= .15912 DDN= 1.35764 L= 295.4167673 B= 8.709349400000001 MOID= .029043 TP= 1973-Dec-28.4306834741 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.8 M2= 9.5 k1= 9. k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#2, data arc: 1973-01-28 to 1974-04-26 2: k1=9., k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu Apr 25 22:47:18 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Kohoutek (C/1973 E1) {source: JPL#2} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1974-Jan-01 00:00:00.0000 TDB Stop time : A.D. 1992-Jan-01 00:00:00.0000 TDB Step-size : 1 calendar years ******************************************************************************* Center geodetic : 0.0, 0.0, 0.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center radii : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Keplerian GM : 2.9591220828411951E-04 au^3/d^2 Small perturbers: Yes {source: SB441-N16} Output units : AU-D, deg, Julian Day Number (Tp) Calendar mode : Mixed Julian/Gregorian Output type : GEOMETRIC osculating elements Output format : 10 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2442022.5 ! 1973-Dec-06.0000000 (TDB) RMSW= n.a. EC= 1.000007809885518 QR= .1424250322974156 TP= 2442044.9306834741 OM= 258.4894909953879 W= 37.79756893411028 IN= 14.3041449344601 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-7.176607165692492E-01 Y= 2.189317234802677E-01 Z=-1.092419637587899E-01 VX= 2.124785674986996E-02 VY=-1.810625626616084E-02 VZ=-1.117975478505453E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.8 M2= 9.5 k1= 9. k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2442048.500000000 = A.D. 1974-Jan-01 00:00:00.0000 TDB EC= 1.000007390234394E+00 QR= 1.424250326171043E-01 IN= 1.430414959732719E+01 OM= 2.584893301061426E+02 W = 3.779772292205084E+01 Tp= 2442044.930686876178 N = 3.683934518168830E-07 MA= 1.314911582356298E-06 TA= 6.964232538604286E+01 A =-1.927205891258713E+04 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2442413.500000000 = A.D. 1975-Jan-01 00:00:00.0000 TDB EC= 1.000020413008062E+00 QR= 1.427042348419372E-01 IN= 1.428565593109216E+01 OM= 2.584674405757499E+02 W = 3.784255219331227E+01 Tp= 2442044.923381183296 N = 1.686200806192062E-06 MA= 6.214941917919389E-04 TA= 1.614862548208270E+02 A =-6.990847914710866E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2442778.500000000 = A.D. 1976-Jan-01 00:00:00.0000 TDB EC= 1.000030071494267E+00 QR= 1.440385361361884E-01 IN= 1.417802829171745E+01 OM= 2.582906777038467E+02 W = 3.809044392496464E+01 Tp= 2442044.802066599019 N = 2.973161762967396E-06 MA= 2.181402641155424E-03 TA= 1.653004983895396E+02 A =-4.789869597355148E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2443144.500000000 = A.D. 1977-Jan-01 00:00:00.0000 TDB EC= 1.000002366241995E+00 QR= 1.453571647369573E-01 IN= 1.410681616083794E+01 OM= 2.581589578240122E+02 W = 3.827444337672398E+01 Tp= 2442044.348794256803 N = 6.473484993284973E-08 MA= 7.121812320721508E-05 TA= 1.671344652025970E+02 A =-6.142954315845984E+04 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2443509.500000000 = A.D. 1978-Jan-01 00:00:00.0000 TDB EC= 9.999666555550840E-01 QR= 1.459822458433832E-01 IN= 1.410044204796345E+01 OM= 2.581464989329738E+02 W = 3.830352585816556E+01 Tp= 2442043.645050345454 N = 3.402430407644293E-06 MA= 4.987469453890381E-03 TA= 1.683074059015586E+02 A = 4.378007977346444E+03 AD= 8.755869972447044E+03 PR= 1.058067195705700E+08 2443874.500000000 = A.D. 1979-Jan-01 00:00:00.0000 TDB EC= 9.999348026413547E-01 QR= 1.459144656869953E-01 IN= 1.413579188337297E+01 OM= 2.582206372316145E+02 W = 3.821987155534566E+01 Tp= 2442042.827960968949 N = 9.308968318833253E-06 MA= 1.705097698180883E-02 TA= 1.691658573017272E+02 A = 2.238042594347359E+03 AD= 4.475939274229030E+03 PR= 3.867238427180734E+07 2444239.500000000 = A.D. 1980-Jan-01 00:00:00.0000 TDB EC= 9.999124249642201E-01 QR= 1.448619011324080E-01 IN= 1.421439695255762E+01 OM= 2.583888021277945E+02 W = 3.801173780872997E+01 Tp= 2442042.176816817839 N = 1.465019105183694E-05 MA= 3.219120443626906E-02 TA= 1.698554936423202E+02 A = 1.654146068473349E+03 AD= 3.308147275045566E+03 PR= 2.457305838034520E+07 2444605.500000000 = A.D. 1981-Jan-01 00:00:00.0000 TDB EC= 9.998996958782056E-01 QR= 1.429882393277663E-01 IN= 1.432105148721004E+01 OM= 2.586191548700913E+02 W = 3.771971028786883E+01 Tp= 2442041.842692546546 N = 1.831183075774566E-05 MA= 4.694525873492086E-02 TA= 1.704378024692203E+02 A = 1.425546994173355E+03 AD= 2.850951000107383E+03 PR= 1.965942153805265E+07 2444970.500000000 = A.D. 1982-Jan-01 00:00:00.0000 TDB EC= 9.998978159056087E-01 QR= 1.406688766709737E-01 IN= 1.442619957994347E+01 OM= 2.588467901904248E+02 W = 3.742167286314359E+01 Tp= 2442042.067947162781 N = 1.929665336032620E-05 MA= 5.650893821287459E-02 TA= 1.709346974262530E+02 A = 1.376622041900252E+03 AD= 2.753103414923834E+03 PR= 1.865608472504138E+07 2445335.500000000 = A.D. 1983-Jan-01 00:00:00.0000 TDB EC= 9.999043447676028E-01 QR= 1.381902753852873E-01 IN= 1.451551364918902E+01 OM= 2.590402243085880E+02 W = 3.715730141824233E+01 Tp= 2442042.946243104991 N = 1.794944179939143E-05 MA= 5.909950203073119E-02 TA= 1.713633345031463E+02 A = 1.444670321971913E+03 AD= 2.889202453668441E+03 PR= 2.005633400879384E+07 2445700.500000000 = A.D. 1984-Jan-01 00:00:00.0000 TDB EC= 9.999167406531867E-01 QR= 1.363532941735553E-01 IN= 1.455081409100112E+01 OM= 2.591168777379141E+02 W = 3.703065813965822E+01 Tp= 2442044.408326822333 N = 1.487151183940920E-05 MA= 5.437161060360326E-02 TA= 1.717162949707605E+02 A = 1.637693537043551E+03 AD= 3.275250720792929E+03 PR= 2.420735725375327E+07 2446066.500000000 = A.D. 1985-Jan-01 00:00:00.0000 TDB EC= 9.999331921253994E-01 QR= 1.356203498847525E-01 IN= 1.450972742839056E+01 OM= 2.590261410579482E+02 W = 3.710279182058115E+01 Tp= 2442046.407792849932 N = 1.077601696496782E-05 MA= 4.332058182497002E-02 TA= 1.719941685563748E+02 A = 2.030005455134141E+03 AD= 4.059875289918397E+03 PR= 3.340751978865086E+07 2446431.500000000 = A.D. 1986-Jan-01 00:00:00.0000 TDB EC= 9.999482352345868E-01 QR= 1.365111833712838E-01 IN= 1.439397286996680E+01 OM= 2.587652518343959E+02 W = 3.738758795443907E+01 Tp= 2442048.266261324286 N = 7.277850029514007E-06 MA= 3.190051779438310E-02 TA= 1.721935128090734E+02 A = 2.637144827781703E+03 AD= 5.274153144380033E+03 PR= 4.946515777875128E+07 2446796.500000000 = A.D. 1987-Jan-01 00:00:00.0000 TDB EC= 9.999584345056313E-01 QR= 1.392958172515639E-01 IN= 1.421546129261430E+01 OM= 2.583499308873466E+02 W = 3.787290125365373E+01 Tp= 2442049.306924264412 N = 5.080382199776947E-06 MA= 2.411755520084959E-02 TA= 1.723190816637964E+02 A = 3.351236870072208E+03 AD= 6.702334444327165E+03 PR= 7.086081043583801E+07 2447161.500000000 = A.D. 1988-Jan-01 00:00:00.0000 TDB EC= 9.999601656280601E-01 QR= 1.430020938317510E-01 IN= 1.404818309090633E+01 OM= 2.579466156475003E+02 W = 3.836554203427355E+01 Tp= 2442048.907065919600 N = 4.582235867464876E-06 MA= 2.342710671828347E-02 TA= 1.724078296869045E+02 A = 3.589917120957714E+03 AD= 7.179691239821597E+03 PR= 7.856426653112690E+07 2447527.500000000 = A.D. 1989-Jan-01 00:00:00.0000 TDB EC= 9.999520472174531E-01 QR= 1.465198063981210E-01 IN= 1.394995271063108E+01 OM= 2.577029273724837E+02 W = 3.869080582918046E+01 Tp= 2442046.765376739670 N = 5.835529772083624E-06 MA= 3.198299006692621E-02 TA= 1.724946958323095E+02 A = 3.055501654290575E+03 AD= 6.110856788774752E+03 PR= 6.169105703516255E+07 2447892.500000000 = A.D. 1990-Jan-01 00:00:00.0000 TDB EC= 9.999386298451939E-01 QR= 1.485824308732804E-01 IN= 1.394350586754880E+01 OM= 2.576867724954839E+02 W = 3.875308456524442E+01 Tp= 2442043.702805760782 N = 8.273489367471456E-06 MA= 4.838996139905022E-02 TA= 1.726098859428188E+02 A = 2.421086134491786E+03 AD= 4.842023686552699E+03 PR= 4.351247508885399E+07 2448257.500000000 = A.D. 1991-Jan-01 00:00:00.0000 TDB EC= 9.999245517751136E-01 QR= 1.483889748403751E-01 IN= 1.403694230034297E+01 OM= 2.579220350244910E+02 W = 3.851373472668593E+01 Tp= 2442040.592602486722 N = 1.129991461056684E-05 MA= 7.025052273369538E-02 TA= 1.727702673773968E+02 A = 1.966765620586523E+03 AD= 3.933382852198205E+03 PR= 3.185864782229017E+07 2448622.500000000 = A.D. 1992-Jan-01 00:00:00.0000 TDB EC= 9.999140009832800E-01 QR= 1.464102413376893E-01 IN= 1.418866199652996E+01 OM= 2.582984816381134E+02 W = 3.809540852481372E+01 Tp= 2442038.207528563216 N = 1.403095131499941E-05 MA= 9.238388711046711E-02 TA= 1.729610436809754E+02 A = 1.702464131820517E+03 AD= 3.404781853399697E+03 PR= 2.565756176597602E+07 $$EOE ******************************************************************************* TIME Barycentric Dynamical Time ("TDB" or T_eph) output was requested. This continuous coordinate time is equivalent to the relativistic proper time of a clock at rest in a reference frame co-moving with the solar system barycenter but outside the system's gravity well. It is the independent variable in the solar system relativistic equations of motion. TDB runs at a uniform rate of one SI second per second and is independent of irregularities in Earth's rotation. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. REFERENCE FRAME AND COORDINATES Ecliptic at the standard reference epoch Reference epoch: J2000.0 X-Y plane: adopted Earth orbital plane at the reference epoch Note: IAU76 obliquity of 84381.448 arcseconds wrt ICRF X-Y plane X-axis : ICRF Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense of Earth's north pole at the reference epoch. Symbol meaning [1 au= 149597870.700 km, 1 day= 86400.0 s]: JDTDB Julian Day Number, Barycentric Dynamical Time EC Eccentricity, e QR Periapsis distance, q (au) IN Inclination w.r.t X-Y plane, i (degrees) OM Longitude of Ascending Node, OMEGA, (degrees) W Argument of Perifocus, w (degrees) Tp Time of periapsis (Julian Day Number) N Mean motion, n (degrees/day) MA Mean anomaly, M (degrees) TA True anomaly, nu (degrees) A Semi-major axis, a (au) AD Apoapsis distance (au) PR Sidereal orbit period (day) ABERRATIONS AND CORRECTIONS Geometric osculating elements have NO corrections or aberrations applied. Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '1973 E1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1974-01-01' STOP_TIME = '1992-01-01' STEP_SIZE = '1 year' CENTER = '@Sun' OUT_UNITS = 'AU-D'