API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 84P/Giclas 2024-May-03 17:25:31 Rec #:90000872 (+COV) Soln.date: 2021-Mar-29_10:00:09 # obs: 1745 (1978-2021) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2455894.5 ! 2011-Nov-29.0000000 (TDB) RMSW= n.a. EC= .4944679176981627 QR= 1.840490783412315 TP= 2456496.5723776715 OM= 112.3893362880986 W= 276.4047896990754 IN= 7.284293770723781 A= 3.640700259876713 MA= 274.5768878861164 ADIST= 5.44090973634111 PER= 6.9468126978676 N= .141881799 ANGMOM= .028529329 DAN= 2.60677 DDN= 2.91113 L= 28.8457998 B= -7.2385853 MOID= .86191899 TP= 2013-Jul-23.0723776715 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= .900 M1= 14.2 M2= n.a. k1= 6.5 k2= n.a. 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= 5.691323801875E-10 A2= -2.330648945644E-11 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#49, data arc: 1978-09-03 to 2021-03-18 2: k1=6.5; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Fri May 3 17:25:31 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 84P/Giclas {source: JPL#49} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2027-Feb-10 00:00:00.0000 UT Stop time : A.D. 2027-Feb-14 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 0.9 km 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.240503.p240727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-03. PREDICTS-> 2024-JUL-26 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= 2455894.5 ! 2011-Nov-29.0000000 (TDB) RMSW= n.a. EC= .4944679176981627 QR= 1.840490783412315 TP= 2456496.5723776715 OM= 112.3893362880986 W= 276.4047896990754 IN= 7.284293770723781 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.322627838093924E+00 Y=-3.888238523708471E+00 Z=-1.298654966869000E+00 VX= 7.329913610239707E-03 VY= 1.503438521707162E-03 VZ=-3.580487291667108E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= .900 M1= 14.2 M2= n.a. k1= 6.5 k2= n.a. 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= 5.691323801875E-10 A2= -2.330648945644E-11 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2027-Feb-10 00:00 1.720116014164 -0.2438001 2027-Feb-10 03:00 1.720098816471 -0.2326482 2027-Feb-10 06:00 1.720082423868 -0.2214958 2027-Feb-10 09:00 1.720066836394 -0.2103428 2027-Feb-10 12:00 1.720052054082 -0.1991893 2027-Feb-10 15:00 1.720038076969 -0.1880354 2027-Feb-10 18:00 1.720024905085 -0.1768811 2027-Feb-10 21:00 1.720012538461 -0.1657264 2027-Feb-11 00:00 1.720000977126 -0.1545712 2027-Feb-11 03:00 1.719990221105 -0.1434157 2027-Feb-11 06:00 1.719980270424 -0.1322599 2027-Feb-11 09:00 1.719971125106 -0.1211038 2027-Feb-11 12:00 1.719962785171 -0.1099474 2027-Feb-11 15:00 1.719955250639 -0.0987908 2027-Feb-11 18:00 1.719948521526 -0.0876339 2027-Feb-11 21:00 1.719942597849 -0.0764769 2027-Feb-12 00:00 1.719937479620 -0.0653196 2027-Feb-12 03:00 1.719933166852 -0.0541622 2027-Feb-12 06:00 1.719929659553 -0.0430047 2027-Feb-12 09:00 1.719926957733 -0.0318471 2027-Feb-12 12:00 1.719925061397 -0.0206894 2027-Feb-12 15:00 1.719923970549 -0.0095317 2027-Feb-12 18:00 1.719923685191 0.0016261 2027-Feb-12 21:00 1.719924205325 0.0127838 2027-Feb-13 00:00 1.719925530948 0.0239415 2027-Feb-13 03:00 1.719927662058 0.0350992 2027-Feb-13 06:00 1.719930598649 0.0462567 2027-Feb-13 09:00 1.719934340714 0.0574142 2027-Feb-13 12:00 1.719938888244 0.0685715 2027-Feb-13 15:00 1.719944241229 0.0797287 2027-Feb-13 18:00 1.719950399656 0.0908857 2027-Feb-13 21:00 1.719957363511 0.1020424 2027-Feb-14 00:00 1.719965132777 0.1131989 $$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 *******************************************************************************