******************************************************************************* JPL/HORIZONS 44P/Reinmuth 2 2024-May-08 06:10:37 Rec #:90000520 Soln.date: - # obs: 418 (1993-2007) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2451960.5 ! 2001-Feb-20.0000000 (TDB) RMSW= n.a. EC= .464515 QR= 1.889718 TP= 2451960.4849 OM= 296.0694 W= 46.101 IN= 6.9818 A= 3.528984005154206 MA= .002244949030097322 ADIST= 5.168250010308412 PER= 6.6295299538811 N= .148672122 ANGMOM= .028617181 DAN= 2.09329 DDN= 4.08243 L= 341.957308 B= 5.024826 TP= 2001-Feb-19.9849000000 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.61 M1= 14. M2= n.a. k1= 5.5 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= SAO/2001 2: k1=5.5;non-gravs. considered; 2008 SAO Comet Catalog ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 8 06:10:37 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 44P/Reinmuth 2 {source: SAO/200120} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2029-May-18 00:00:00.0000 UT Stop time : A.D. 2029-May-22 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 1.61 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.240507.p240731 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-07. PREDICTS-> 2024-JUL-30 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= 2451960.5 ! 2001-Feb-20.0000000 (TDB) RMSW= n.a. EC= .464515 QR= 1.889718 TP= 2451960.4849 OM= 296.0694 W= 46.101 IN= 6.9818 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.789956592757353E+00 Y=-6.005796233944446E-01 Z=-7.996029087633602E-02 VX= 4.565657220127515E-03 VY= 1.268798726427385E-02 VZ= 6.891961847422363E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.61 M1= 14. M2= n.a. k1= 5.5 k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2029-May-18 00:00 2.111160144750 -0.1145019 2029-May-18 03:00 2.111152099931 -0.1083560 2029-May-18 06:00 2.111144498834 -0.1022099 2029-May-18 09:00 2.111137341466 -0.0960638 2029-May-18 12:00 2.111130627836 -0.0899175 2029-May-18 15:00 2.111124357952 -0.0837711 2029-May-18 18:00 2.111118531820 -0.0776246 2029-May-18 21:00 2.111113149449 -0.0714780 2029-May-19 00:00 2.111108210843 -0.0653314 2029-May-19 03:00 2.111103716009 -0.0591847 2029-May-19 06:00 2.111099664951 -0.0530379 2029-May-19 09:00 2.111096057676 -0.0468910 2029-May-19 12:00 2.111092894186 -0.0407441 2029-May-19 15:00 2.111090174486 -0.0345971 2029-May-19 18:00 2.111087898578 -0.0284501 2029-May-19 21:00 2.111086066467 -0.0223031 2029-May-20 00:00 2.111084678153 -0.0161560 2029-May-20 03:00 2.111083733638 -0.0100089 2029-May-20 06:00 2.111083232925 -0.0038618 2029-May-20 09:00 2.111083176013 0.0022853 2029-May-20 12:00 2.111083562903 0.0084324 2029-May-20 15:00 2.111084393595 0.0145795 2029-May-20 18:00 2.111085668087 0.0207266 2029-May-20 21:00 2.111087386379 0.0268736 2029-May-21 00:00 2.111089548470 0.0330207 2029-May-21 03:00 2.111092154355 0.0391677 2029-May-21 06:00 2.111095204034 0.0453146 2029-May-21 09:00 2.111098697503 0.0514615 2029-May-21 12:00 2.111102634757 0.0576084 2029-May-21 15:00 2.111107015793 0.0637552 2029-May-21 18:00 2.111111840606 0.0699019 2029-May-21 21:00 2.111117109192 0.0760486 2029-May-22 00:00 2.111122821543 0.0821951 $$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 = '90000520' START_TIME = '2029-May-18' STOP_TIME = '2029-May-22' STEP_SIZE = '3 hours' QUANTITIES = '19'