******************************************************************************* JPL/HORIZONS 273P/Pons-Gambart 2024-May-03 14:10:17 Rec #:90001232 (+COV) Soln.date: 2021-Apr-15_23:28:12 # obs: 1140 (1827-2014) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456369.5 ! 2013-Mar-18.0000000 (TDB) RMSW= n.a. EC= .9753243653418344 QR= .8101589836385896 TP= 2456281.1708813063 OM= 320.4311716157664 W= 20.19191161075621 IN= 136.3960312125772 A= 32.83234635549665 MA= .4627592305604619 ADIST= 64.85453372735472 PER= 188.13131153752 N= .005239034 ANGMOM= .021761347 DAN= .83551 DDN= 18.91251 L= 305.5188492 B= 13.7714979 MOID= .17182299 TP= 2012-Dec-19.6708813063 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 11.3 M2= 14.9 k1= 8.75 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 4.358485713601E-10 A2= 7.730155438185E-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#11, data arc: 1827-06-21 to 2014-04-04 2: k1=8.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 3 14:10:17 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 273P/Pons-Gambart {source: JPL#11} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2191-Aug-01 00:00:00.0000 UT Stop time : A.D. 2191-Aug-30 00:00:00.0000 UT Step-size : 360 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -6378.137 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Small-body perts: Yes {source: SB441-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.240502.p240726 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-02. PREDICTS-> 2024-JUL-25 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO ) Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2456369.5 ! 2013-Mar-18.0000000 (TDB) RMSW= n.a. EC= .9753243653418344 QR= .8101589836385896 TP= 2456281.1708813063 OM= 320.4311716157664 W= 20.19191161075621 IN= 136.3960312125772 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.262934558824865E+00 Y=-8.211901427540883E-01 Z= 8.207522926632561E-01 VX=-1.627086090623616E-02 VY= 4.511784034036996E-03 VZ= 7.132574440940481E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 11.3 M2= 14.9 k1= 8.75 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 4.358485713601E-10 A2= 7.730155438185E-10 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2191-Aug-01 00:00 0.828580806878 -6.3662009 2191-Aug-01 06:00 0.827674144478 -6.1910972 2191-Aug-01 12:00 0.826792829974 -6.0152234 2191-Aug-01 18:00 0.825936973197 -5.8385981 2191-Aug-02 00:00 0.825106681250 -5.6612399 2191-Aug-02 06:00 0.824302058450 -5.4831681 2191-Aug-02 12:00 0.823523206266 -5.3044023 2191-Aug-02 18:00 0.822770223269 -5.1249623 2191-Aug-03 00:00 0.822043205071 -4.9448685 2191-Aug-03 06:00 0.821342244278 -4.7641413 2191-Aug-03 12:00 0.820667430438 -4.5828019 2191-Aug-03 18:00 0.820018850000 -4.4008715 2191-Aug-04 00:00 0.819396586262 -4.2183716 2191-Aug-04 06:00 0.818800719343 -4.0353241 2191-Aug-04 12:00 0.818231326136 -3.8517512 2191-Aug-04 18:00 0.817688480280 -3.6676754 2191-Aug-05 00:00 0.817172252126 -3.4831194 2191-Aug-05 06:00 0.816682708711 -3.2981061 2191-Aug-05 12:00 0.816219913726 -3.1126588 2191-Aug-05 18:00 0.815783927494 -2.9268009 2191-Aug-06 00:00 0.815374806942 -2.7405561 2191-Aug-06 06:00 0.814992605581 -2.5539483 2191-Aug-06 12:00 0.814637373477 -2.3670015 2191-Aug-06 18:00 0.814309157233 -2.1797401 2191-Aug-07 00:00 0.814007999961 -1.9921884 2191-Aug-07 06:00 0.813733941266 -1.8043711 2191-Aug-07 12:00 0.813487017223 -1.6163129 2191-Aug-07 18:00 0.813267260354 -1.4280387 2191-Aug-08 00:00 0.813074699615 -1.2395736 2191-Aug-08 06:00 0.812909360371 -1.0509426 2191-Aug-08 12:00 0.812771264385 -0.8621710 2191-Aug-08 18:00 0.812660429805 -0.6732842 2191-Aug-09 00:00 0.812576871144 -0.4843074 2191-Aug-09 06:00 0.812520599276 -0.2952662 2191-Aug-09 12:00 0.812491621426 -0.1061859 2191-Aug-09 18:00 0.812489941159 0.0829078 2191-Aug-10 00:00 0.812515558383 0.2719895 2191-Aug-10 06:00 0.812568469340 0.4610336 2191-Aug-10 12:00 0.812648666607 0.6500148 2191-Aug-10 18:00 0.812756139103 0.8389074 2191-Aug-11 00:00 0.812890872090 1.0276861 2191-Aug-11 06:00 0.813052847176 1.2163255 2191-Aug-11 12:00 0.813242042334 1.4048004 2191-Aug-11 18:00 0.813458431902 1.5930856 2191-Aug-12 00:00 0.813701986606 1.7811561 2191-Aug-12 06:00 0.813972673570 1.9689868 2191-Aug-12 12:00 0.814270456336 2.1565530 2191-Aug-12 18:00 0.814595294883 2.3438301 2191-Aug-13 00:00 0.814947145651 2.5307935 2191-Aug-13 06:00 0.815325961564 2.7174189 2191-Aug-13 12:00 0.815731692057 2.9036823 2191-Aug-13 18:00 0.816164283102 3.0895596 2191-Aug-14 00:00 0.816623677242 3.2750273 2191-Aug-14 06:00 0.817109813621 3.4600618 2191-Aug-14 12:00 0.817622628018 3.6446400 2191-Aug-14 18:00 0.818162052882 3.8287389 2191-Aug-15 00:00 0.818728017373 4.0123358 2191-Aug-15 06:00 0.819320447396 4.1954083 2191-Aug-15 12:00 0.819939265648 4.3779343 2191-Aug-15 18:00 0.820584391656 4.5598919 2191-Aug-16 00:00 0.821255741820 4.7412597 2191-Aug-16 06:00 0.821953229466 4.9220165 2191-Aug-16 12:00 0.822676764883 5.1021413 2191-Aug-16 18:00 0.823426255380 5.2816138 2191-Aug-17 00:00 0.824201605330 5.4604138 2191-Aug-17 06:00 0.825002716223 5.6385214 2191-Aug-17 12:00 0.825829486718 5.8159172 2191-Aug-17 18:00 0.826681812696 5.9925821 2191-Aug-18 00:00 0.827559587314 6.1684975 2191-Aug-18 06:00 0.828462701062 6.3436451 2191-Aug-18 12:00 0.829391041814 6.5180069 2191-Aug-18 18:00 0.830344494892 6.6915654 2191-Aug-19 00:00 0.831322943120 6.8643036 2191-Aug-19 06:00 0.832326266881 7.0362047 2191-Aug-19 12:00 0.833354344181 7.2072524 2191-Aug-19 18:00 0.834407050705 7.3774310 2191-Aug-20 00:00 0.835484259878 7.5467248 2191-Aug-20 06:00 0.836585842926 7.7151190 2191-Aug-20 12:00 0.837711668940 7.8825990 2191-Aug-20 18:00 0.838861604935 8.0491505 2191-Aug-21 00:00 0.840035515910 8.2147598 2191-Aug-21 06:00 0.841233264917 8.3794136 2191-Aug-21 12:00 0.842454713116 8.5430991 2191-Aug-21 18:00 0.843699719842 8.7058038 2191-Aug-22 00:00 0.844968142668 8.8675157 2191-Aug-22 06:00 0.846259837465 9.0282233 2191-Aug-22 12:00 0.847574658466 9.1879154 2191-Aug-22 18:00 0.848912458330 9.3465813 2191-Aug-23 00:00 0.850273088201 9.5042107 2191-Aug-23 06:00 0.851656397774 9.6607939 2191-Aug-23 12:00 0.853062235357 9.8163214 2191-Aug-23 18:00 0.854490447928 9.9707843 2191-Aug-24 00:00 0.855940881202 10.1241740 2191-Aug-24 06:00 0.857413379691 10.2764823 2191-Aug-24 12:00 0.858907786760 10.4277015 2191-Aug-24 18:00 0.860423944694 10.5778244 2191-Aug-25 00:00 0.861961694754 10.7268441 2191-Aug-25 06:00 0.863520877235 10.8747541 2191-Aug-25 12:00 0.865101331529 11.0215483 2191-Aug-25 18:00 0.866702896180 11.1672210 2191-Aug-26 00:00 0.868325408940 11.3117670 2191-Aug-26 06:00 0.869968706829 11.4551814 2191-Aug-26 12:00 0.871632626190 11.5974597 2191-Aug-26 18:00 0.873317002745 11.7385978 2191-Aug-27 00:00 0.875021671645 11.8785919 2191-Aug-27 06:00 0.876746467532 12.0174386 2191-Aug-27 12:00 0.878491224584 12.1551351 2191-Aug-27 18:00 0.880255776573 12.2916785 2191-Aug-28 00:00 0.882039956911 12.4270666 2191-Aug-28 06:00 0.883843598706 12.5612975 2191-Aug-28 12:00 0.885666534809 12.6943695 2191-Aug-28 18:00 0.887508597862 12.8262814 2191-Aug-29 00:00 0.889369620345 12.9570322 2191-Aug-29 06:00 0.891249434626 13.0866213 2191-Aug-29 12:00 0.893147873005 13.2150484 2191-Aug-29 18:00 0.895064767760 13.3423135 2191-Aug-30 00:00 0.896999951188 13.4684169 $$EOE ******************************************************************************* Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. 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. NOTE: "n.a." in output means quantity "not available" at the print-time. 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 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 = '273P' START_TIME = '2191-Aug-01' STOP_TIME = '2191-Aug-30' STEP_SIZE = '6 hours' QUANTITIES = '19'