API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 102P/Shoemaker 1 2024-Apr-30 07:04:26 Rec #:90000949 (+COV) Soln.date: 2022-Feb-06_20:54:12 # obs: 392 (2006-2022) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456078.5 ! 2012-May-31.0000000 (TDB) RMSW= n.a. EC= .4731654920192473 QR= 1.968583264509834 TP= 2456536.6560150394 OM= 339.8733382485834 W= 18.74460239787177 IN= 26.2449062377407 A= 3.736625514632678 MA= 297.4830036279697 ADIST= 5.504667764755522 PER= 7.2231654831861 N= .13645351 ANGMOM= .029294366 DAN= 2.0027 DDN= 5.25437 L= 356.8018248 B= 8.1696118 MOID= .97612 TP= 2013-Sep-01.1560150394 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.6 M1= 16.2 M2= n.a. k1= 5.5 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= -5.280947685242E-9 A2= -1.325278282166E-9 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#K213/2, data arc: 2006-07-24 to 2022-01-06 2: k1=5.5; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Tue Apr 30 07:04:26 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 102P/Shoemaker 1 {source: JPL#K213/2} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2028-Jul-01 00:00:00.0000 UT Stop time : A.D. 2028-Jul-20 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 1.6 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.240429.p240723 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-29. PREDICTS-> 2024-JUL-22 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= 2456078.5 ! 2012-May-31.0000000 (TDB) RMSW= n.a. EC= .4731654920192473 QR= 1.968583264509834 TP= 2456536.6560150394 OM= 339.8733382485834 W= 18.74460239787177 IN= 26.2449062377407 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.692141641328840E+00 Y=-2.007232623121228E+00 Z=-2.642747623476083E+00 VX= 8.821497405938574E-03 VY=-9.226923639563072E-04 VZ= 1.005894594407579E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.6 M1= 16.2 M2= n.a. k1= 5.5 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= -5.280947685242E-9 A2= -1.325278282166E-9 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 2028-Jul-01 00:00 2.083292654961 -0.5229221 2028-Jul-01 03:00 2.083255143377 -0.5162111 2028-Jul-01 06:00 2.083218116329 -0.5094996 2028-Jul-01 09:00 2.083181573864 -0.5027874 2028-Jul-01 12:00 2.083145516025 -0.4960747 2028-Jul-01 15:00 2.083109942855 -0.4893613 2028-Jul-01 18:00 2.083074854399 -0.4826473 2028-Jul-01 21:00 2.083040250697 -0.4759328 2028-Jul-02 00:00 2.083006131793 -0.4692177 2028-Jul-02 03:00 2.082972497726 -0.4625020 2028-Jul-02 06:00 2.082939348539 -0.4557857 2028-Jul-02 09:00 2.082906684270 -0.4490689 2028-Jul-02 12:00 2.082874504960 -0.4423516 2028-Jul-02 15:00 2.082842810646 -0.4356337 2028-Jul-02 18:00 2.082811601369 -0.4289153 2028-Jul-02 21:00 2.082780877164 -0.4221964 2028-Jul-03 00:00 2.082750638070 -0.4154770 2028-Jul-03 03:00 2.082720884123 -0.4087570 2028-Jul-03 06:00 2.082691615359 -0.4020366 2028-Jul-03 09:00 2.082662831813 -0.3953157 2028-Jul-03 12:00 2.082634533520 -0.3885943 2028-Jul-03 15:00 2.082606720514 -0.3818724 2028-Jul-03 18:00 2.082579392829 -0.3751501 2028-Jul-03 21:00 2.082552550499 -0.3684273 2028-Jul-04 00:00 2.082526193554 -0.3617041 2028-Jul-04 03:00 2.082500322028 -0.3549804 2028-Jul-04 06:00 2.082474935951 -0.3482564 2028-Jul-04 09:00 2.082450035355 -0.3415318 2028-Jul-04 12:00 2.082425620269 -0.3348069 2028-Jul-04 15:00 2.082401690723 -0.3280816 2028-Jul-04 18:00 2.082378246745 -0.3213559 2028-Jul-04 21:00 2.082355288365 -0.3146297 2028-Jul-05 00:00 2.082332815609 -0.3079033 2028-Jul-05 03:00 2.082310828506 -0.3011764 2028-Jul-05 06:00 2.082289327082 -0.2944491 2028-Jul-05 09:00 2.082268311362 -0.2877216 2028-Jul-05 12:00 2.082247781372 -0.2809936 2028-Jul-05 15:00 2.082227737137 -0.2742653 2028-Jul-05 18:00 2.082208178681 -0.2675367 2028-Jul-05 21:00 2.082189106028 -0.2608078 2028-Jul-06 00:00 2.082170519201 -0.2540786 2028-Jul-06 03:00 2.082152418223 -0.2473490 2028-Jul-06 06:00 2.082134803114 -0.2406191 2028-Jul-06 09:00 2.082117673897 -0.2338890 2028-Jul-06 12:00 2.082101030593 -0.2271586 2028-Jul-06 15:00 2.082084873221 -0.2204279 2028-Jul-06 18:00 2.082069201800 -0.2136969 2028-Jul-06 21:00 2.082054016351 -0.2069656 2028-Jul-07 00:00 2.082039316891 -0.2002342 2028-Jul-07 03:00 2.082025103438 -0.1935024 2028-Jul-07 06:00 2.082011376009 -0.1867705 2028-Jul-07 09:00 2.081998134621 -0.1800383 2028-Jul-07 12:00 2.081985379290 -0.1733059 2028-Jul-07 15:00 2.081973110031 -0.1665733 2028-Jul-07 18:00 2.081961326859 -0.1598405 2028-Jul-07 21:00 2.081950029788 -0.1531075 2028-Jul-08 00:00 2.081939218832 -0.1463743 2028-Jul-08 03:00 2.081928894005 -0.1396409 2028-Jul-08 06:00 2.081919055318 -0.1329074 2028-Jul-08 09:00 2.081909702783 -0.1261737 2028-Jul-08 12:00 2.081900836412 -0.1194398 2028-Jul-08 15:00 2.081892456215 -0.1127058 2028-Jul-08 18:00 2.081884562203 -0.1059717 2028-Jul-08 21:00 2.081877154386 -0.0992374 2028-Jul-09 00:00 2.081870232771 -0.0925030 2028-Jul-09 03:00 2.081863797367 -0.0857685 2028-Jul-09 06:00 2.081857848183 -0.0790339 2028-Jul-09 09:00 2.081852385225 -0.0722993 2028-Jul-09 12:00 2.081847408500 -0.0655645 2028-Jul-09 15:00 2.081842918013 -0.0588296 2028-Jul-09 18:00 2.081838913771 -0.0520947 2028-Jul-09 21:00 2.081835395779 -0.0453597 2028-Jul-10 00:00 2.081832364039 -0.0386246 2028-Jul-10 03:00 2.081829818557 -0.0318895 2028-Jul-10 06:00 2.081827759335 -0.0251544 2028-Jul-10 09:00 2.081826186375 -0.0184192 2028-Jul-10 12:00 2.081825099680 -0.0116841 2028-Jul-10 15:00 2.081824499250 -0.0049489 2028-Jul-10 18:00 2.081824385087 0.0017863 2028-Jul-10 21:00 2.081824757191 0.0085216 2028-Jul-11 00:00 2.081825615560 0.0152567 2028-Jul-11 03:00 2.081826960195 0.0219919 2028-Jul-11 06:00 2.081828791093 0.0287271 2028-Jul-11 09:00 2.081831108252 0.0354622 2028-Jul-11 12:00 2.081833911669 0.0421973 2028-Jul-11 15:00 2.081837201341 0.0489323 2028-Jul-11 18:00 2.081840977264 0.0556672 2028-Jul-11 21:00 2.081845239433 0.0624021 2028-Jul-12 00:00 2.081849987843 0.0691369 2028-Jul-12 03:00 2.081855222488 0.0758717 2028-Jul-12 06:00 2.081860943362 0.0826063 2028-Jul-12 09:00 2.081867150458 0.0893409 2028-Jul-12 12:00 2.081873843769 0.0960753 2028-Jul-12 15:00 2.081881023286 0.1028096 2028-Jul-12 18:00 2.081888689000 0.1095438 2028-Jul-12 21:00 2.081896840902 0.1162779 2028-Jul-13 00:00 2.081905478983 0.1230118 2028-Jul-13 03:00 2.081914603232 0.1297456 2028-Jul-13 06:00 2.081924213638 0.1364792 2028-Jul-13 09:00 2.081934310188 0.1432126 2028-Jul-13 12:00 2.081944892872 0.1499459 2028-Jul-13 15:00 2.081955961675 0.1566790 2028-Jul-13 18:00 2.081967516585 0.1634119 2028-Jul-13 21:00 2.081979557588 0.1701446 2028-Jul-14 00:00 2.081992084668 0.1768771 2028-Jul-14 03:00 2.082005097811 0.1836094 2028-Jul-14 06:00 2.082018597002 0.1903414 2028-Jul-14 09:00 2.082032582223 0.1970733 2028-Jul-14 12:00 2.082047053457 0.2038049 2028-Jul-14 15:00 2.082062010688 0.2105362 2028-Jul-14 18:00 2.082077453897 0.2172673 2028-Jul-14 21:00 2.082093383064 0.2239981 2028-Jul-15 00:00 2.082109798172 0.2307287 2028-Jul-15 03:00 2.082126699200 0.2374590 2028-Jul-15 06:00 2.082144086128 0.2441890 2028-Jul-15 09:00 2.082161958934 0.2509186 2028-Jul-15 12:00 2.082180317597 0.2576480 2028-Jul-15 15:00 2.082199162094 0.2643771 2028-Jul-15 18:00 2.082218492404 0.2711059 2028-Jul-15 21:00 2.082238308501 0.2778343 2028-Jul-16 00:00 2.082258610363 0.2845624 2028-Jul-16 03:00 2.082279397965 0.2912902 2028-Jul-16 06:00 2.082300671281 0.2980176 2028-Jul-16 09:00 2.082322430287 0.3047446 2028-Jul-16 12:00 2.082344674954 0.3114713 2028-Jul-16 15:00 2.082367405257 0.3181976 2028-Jul-16 18:00 2.082390621168 0.3249235 2028-Jul-16 21:00 2.082414322659 0.3316490 2028-Jul-17 00:00 2.082438509702 0.3383741 2028-Jul-17 03:00 2.082463182266 0.3450988 2028-Jul-17 06:00 2.082488340322 0.3518231 2028-Jul-17 09:00 2.082513983840 0.3585469 2028-Jul-17 12:00 2.082540112788 0.3652704 2028-Jul-17 15:00 2.082566727135 0.3719934 2028-Jul-17 18:00 2.082593826849 0.3787159 2028-Jul-17 21:00 2.082621411896 0.3854380 2028-Jul-18 00:00 2.082649482245 0.3921596 2028-Jul-18 03:00 2.082678037859 0.3988807 2028-Jul-18 06:00 2.082707078706 0.4056014 2028-Jul-18 09:00 2.082736604750 0.4123215 2028-Jul-18 12:00 2.082766615954 0.4190412 2028-Jul-18 15:00 2.082797112284 0.4257604 2028-Jul-18 18:00 2.082828093701 0.4324790 2028-Jul-18 21:00 2.082859560169 0.4391971 2028-Jul-19 00:00 2.082891511649 0.4459147 2028-Jul-19 03:00 2.082923948102 0.4526318 2028-Jul-19 06:00 2.082956869491 0.4593483 2028-Jul-19 09:00 2.082990275773 0.4660642 2028-Jul-19 12:00 2.083024166911 0.4727796 2028-Jul-19 15:00 2.083058542861 0.4794945 2028-Jul-19 18:00 2.083093403583 0.4862087 2028-Jul-19 21:00 2.083128749034 0.4929223 2028-Jul-20 00:00 2.083164579173 0.4996354 $$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 *******************************************************************************