******************************************************************************* JPL/HORIZONS 9P/Tempel 1 2024-Apr-23 16:03:47 Rec #:90000182 Soln.date: - # obs: 394 (1867-1972) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2407500.5 ! 1879-May-31.0000000 (TDB) RMSW= n.a. EC= .462546 QR= 1.771126 TP= 2407477.1033999999 OM= 80.3642 W= 159.5782 IN= 9.7675 A= 3.295400164479193 MA= 3.854735518410818 ADIST= 4.819674328958386 PER= 5.982331029314 N= .164756226 ANGMOM= .027686046 DAN= 4.57235 DDN= 1.80705 L= 240.2144642 B= 3.3936606 TP= 1879-May-07.6033999999 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 3. M1= 12.9 M2= n.a. k1= 9. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= SAO/1879 2: k1=9.;epoch may be 2407501.0 (hour ambiguous: 12h/0h); 2008 SAO Comet Catalog ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 23 16:03:47 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 9P/Tempel 1 {source: SAO/187920} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2035-Apr-10 00:00:00.0000 UT Stop time : A.D. 2035-Apr-25 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : IAU {East-longitude positive} Target radii : 3.1, 2.1, 2.1 km {Equator_a, b, pole_c} 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.240423.p240717 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-23. PREDICTS-> 2024-JUL-16 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= 2407500.5 ! 1879-May-31.0000000 (TDB) RMSW= n.a. EC= .462546 QR= 1.771126 TP= 2407477.1033999999 OM= 80.3642 W= 159.5782 IN= 9.7675 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-5.553942562577348E-01 Y=-1.572004801605810E+00 Z=-6.320019180461766E-01 VX= 1.421053251630467E-02 VY=-4.287911618644908E-03 VZ=-4.669613043034408E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 3. M1= 12.9 M2= n.a. k1= 9. k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2035-Apr-10 00:00 3.435022363290 7.2916105 2035-Apr-10 03:00 3.435548712780 7.2902991 2035-Apr-10 06:00 3.436074967657 7.2889875 2035-Apr-10 09:00 3.436601127906 7.2876756 2035-Apr-10 12:00 3.437127193511 7.2863636 2035-Apr-10 15:00 3.437653164457 7.2850514 2035-Apr-10 18:00 3.438179040731 7.2837390 2035-Apr-10 21:00 3.438704822316 7.2824263 2035-Apr-11 00:00 3.439230509199 7.2811135 2035-Apr-11 03:00 3.439756101363 7.2798004 2035-Apr-11 06:00 3.440281598795 7.2784872 2035-Apr-11 09:00 3.440807001480 7.2771737 2035-Apr-11 12:00 3.441332309403 7.2758600 2035-Apr-11 15:00 3.441857522549 7.2745462 2035-Apr-11 18:00 3.442382640904 7.2732321 2035-Apr-11 21:00 3.442907664452 7.2719178 2035-Apr-12 00:00 3.443432593181 7.2706034 2035-Apr-12 03:00 3.443957427074 7.2692887 2035-Apr-12 06:00 3.444482166117 7.2679738 2035-Apr-12 09:00 3.445006810296 7.2666587 2035-Apr-12 12:00 3.445531359597 7.2653435 2035-Apr-12 15:00 3.446055814005 7.2640280 2035-Apr-12 18:00 3.446580173505 7.2627123 2035-Apr-12 21:00 3.447104438084 7.2613965 2035-Apr-13 00:00 3.447628607726 7.2600804 2035-Apr-13 03:00 3.448152682418 7.2587641 2035-Apr-13 06:00 3.448676662145 7.2574477 2035-Apr-13 09:00 3.449200546894 7.2561310 2035-Apr-13 12:00 3.449724336649 7.2548142 2035-Apr-13 15:00 3.450248031397 7.2534971 2035-Apr-13 18:00 3.450771631124 7.2521799 2035-Apr-13 21:00 3.451295135815 7.2508624 2035-Apr-14 00:00 3.451818545456 7.2495448 2035-Apr-14 03:00 3.452341860034 7.2482270 2035-Apr-14 06:00 3.452865079535 7.2469089 2035-Apr-14 09:00 3.453388203943 7.2455907 2035-Apr-14 12:00 3.453911233246 7.2442723 2035-Apr-14 15:00 3.454434167429 7.2429537 2035-Apr-14 18:00 3.454957006479 7.2416349 2035-Apr-14 21:00 3.455479750382 7.2403160 2035-Apr-15 00:00 3.456002399124 7.2389968 2035-Apr-15 03:00 3.456524952691 7.2376774 2035-Apr-15 06:00 3.457047411069 7.2363579 2035-Apr-15 09:00 3.457569774244 7.2350382 2035-Apr-15 12:00 3.458092042204 7.2337182 2035-Apr-15 15:00 3.458614214934 7.2323981 2035-Apr-15 18:00 3.459136292421 7.2310778 2035-Apr-15 21:00 3.459658274650 7.2297573 2035-Apr-16 00:00 3.460180161609 7.2284366 2035-Apr-16 03:00 3.460701953284 7.2271158 2035-Apr-16 06:00 3.461223649661 7.2257947 2035-Apr-16 09:00 3.461745250727 7.2244735 2035-Apr-16 12:00 3.462266756469 7.2231520 2035-Apr-16 15:00 3.462788166872 7.2218304 2035-Apr-16 18:00 3.463309481925 7.2205086 2035-Apr-16 21:00 3.463830701612 7.2191867 2035-Apr-17 00:00 3.464351825921 7.2178645 2035-Apr-17 03:00 3.464872854839 7.2165422 2035-Apr-17 06:00 3.465393788353 7.2152196 2035-Apr-17 09:00 3.465914626448 7.2138969 2035-Apr-17 12:00 3.466435369112 7.2125740 2035-Apr-17 15:00 3.466956016332 7.2112509 2035-Apr-17 18:00 3.467476568095 7.2099277 2035-Apr-17 21:00 3.467997024387 7.2086042 2035-Apr-18 00:00 3.468517385195 7.2072806 2035-Apr-18 03:00 3.469037650507 7.2059568 2035-Apr-18 06:00 3.469557820308 7.2046328 2035-Apr-18 09:00 3.470077894587 7.2033087 2035-Apr-18 12:00 3.470597873331 7.2019843 2035-Apr-18 15:00 3.471117756525 7.2006598 2035-Apr-18 18:00 3.471637544158 7.1993351 2035-Apr-18 21:00 3.472157236216 7.1980103 2035-Apr-19 00:00 3.472676832687 7.1966852 2035-Apr-19 03:00 3.473196333558 7.1953600 2035-Apr-19 06:00 3.473715738816 7.1940346 2035-Apr-19 09:00 3.474235048448 7.1927090 2035-Apr-19 12:00 3.474754262442 7.1913832 2035-Apr-19 15:00 3.475273380784 7.1900573 2035-Apr-19 18:00 3.475792403462 7.1887312 2035-Apr-19 21:00 3.476311330464 7.1874049 2035-Apr-20 00:00 3.476830161777 7.1860785 2035-Apr-20 03:00 3.477348897387 7.1847518 2035-Apr-20 06:00 3.477867537284 7.1834250 2035-Apr-20 09:00 3.478386081453 7.1820981 2035-Apr-20 12:00 3.478904529883 7.1807709 2035-Apr-20 15:00 3.479422882561 7.1794436 2035-Apr-20 18:00 3.479941139474 7.1781161 2035-Apr-20 21:00 3.480459300611 7.1767884 2035-Apr-21 00:00 3.480977365958 7.1754606 2035-Apr-21 03:00 3.481495335504 7.1741326 2035-Apr-21 06:00 3.482013209236 7.1728044 2035-Apr-21 09:00 3.482530987141 7.1714761 2035-Apr-21 12:00 3.483048669208 7.1701475 2035-Apr-21 15:00 3.483566255424 7.1688189 2035-Apr-21 18:00 3.484083745777 7.1674900 2035-Apr-21 21:00 3.484601140254 7.1661610 2035-Apr-22 00:00 3.485118438844 7.1648318 2035-Apr-22 03:00 3.485635641534 7.1635024 2035-Apr-22 06:00 3.486152748312 7.1621729 2035-Apr-22 09:00 3.486669759166 7.1608432 2035-Apr-22 12:00 3.487186674084 7.1595133 2035-Apr-22 15:00 3.487703493054 7.1581833 2035-Apr-22 18:00 3.488220216064 7.1568531 2035-Apr-22 21:00 3.488736843101 7.1555227 2035-Apr-23 00:00 3.489253374155 7.1541922 2035-Apr-23 03:00 3.489769809213 7.1528615 2035-Apr-23 06:00 3.490286148262 7.1515307 2035-Apr-23 09:00 3.490802391292 7.1501996 2035-Apr-23 12:00 3.491318538289 7.1488685 2035-Apr-23 15:00 3.491834589244 7.1475371 2035-Apr-23 18:00 3.492350544142 7.1462056 2035-Apr-23 21:00 3.492866402974 7.1448739 2035-Apr-24 00:00 3.493382165726 7.1435421 2035-Apr-24 03:00 3.493897832388 7.1422101 2035-Apr-24 06:00 3.494413402948 7.1408779 2035-Apr-24 09:00 3.494928877393 7.1395456 2035-Apr-24 12:00 3.495444255712 7.1382131 2035-Apr-24 15:00 3.495959537894 7.1368805 2035-Apr-24 18:00 3.496474723927 7.1355477 2035-Apr-24 21:00 3.496989813799 7.1342147 2035-Apr-25 00:00 3.497504807499 7.1328816 $$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 = '90000182' START_TIME = '2035-Apr-10' STOP_TIME = '2035-Apr-25' STEP_SIZE = '3 hours' QUANTITIES = '19'