API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 13P/Olbers 2024-May-22 23:34:25 Rec #:90000226 (+COV) Soln.date: 2024-May-14_12:50:39 # obs: 1558 (1887-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458196.5 ! 2018-Mar-19.0000000 (TDB) RMSW= n.a. EC= .9302050795096872 QR= 1.161343333575838 TP= 2460490.9049885105 OM= 85.88652615243714 W= 64.66434593330381 IN= 44.627414639259 A= 16.63936752728341 MA= 326.6827666617894 ADIST= 32.11739172099099 PER= 67.875559726554 N= .014521078 ANGMOM= .025755114 DAN= 1.60339 DDN= 3.72397 L= 142.2522646 B= 39.4144456 MOID= .459295 TP= 2024-Jun-29.4049885105 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5. M2= 12.8 k1= 22.75 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= 1.54390797019E-9 A2= 5.913103371859E-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#40, data arc: 1887-08-27 to 2024-05-11 2: k1=22.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Wed May 22 23:34:25 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 13P/Olbers {source: JPL#40} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2094-Jan-01 00:00:00.0000 UT Stop time : A.D. 2094-Jan-20 00:00:00.0000 UT Step-size : 180 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.240522.p240815 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-22. PREDICTS-> 2024-AUG-14 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= 2458196.5 ! 2018-Mar-19.0000000 (TDB) RMSW= n.a. EC= .9302050795096872 QR= 1.161343333575838 TP= 2460490.9049885105 OM= 85.88652615243714 W= 64.66434593330381 IN= 44.627414639259 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.108445608398934E+01 Y= 3.024913475776154E+00 Z=-1.069729666651775E+01 VX=-2.762234650494827E-03 VY= 7.168022191755582E-04 VZ= 3.430957806839409E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5. M2= 12.8 k1= 22.75 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= 1.54390797019E-9 A2= 5.913103371859E-10 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN delta deldot S-O-T /r **************************************************************** $$SOE 2094-Jan-01 00:00 0.74862277765224 -5.3537019 145.0235 /T 2094-Jan-01 03:00 0.74823919461146 -5.2720335 144.8344 /T 2094-Jan-01 06:00 0.74786150339814 -5.1904914 144.6451 /T 2094-Jan-01 09:00 0.74748969481839 -5.1090777 144.4555 /T 2094-Jan-01 12:00 0.74712375952835 -5.0277944 144.2657 /T 2094-Jan-01 15:00 0.74676368803472 -4.9466437 144.0756 /T 2094-Jan-01 18:00 0.74640947069425 -4.8656276 143.8854 /T 2094-Jan-01 21:00 0.74606109771437 -4.7847481 143.6949 /T 2094-Jan-02 00:00 0.74571855915311 -4.7040074 143.5043 /T 2094-Jan-02 03:00 0.74538184491942 -4.6234075 143.3134 /T 2094-Jan-02 06:00 0.74505094477311 -4.5429505 143.1224 /T 2094-Jan-02 09:00 0.74472584832524 -4.4626384 142.9312 /T 2094-Jan-02 12:00 0.74440654503832 -4.3824733 142.7398 /T 2094-Jan-02 15:00 0.74409302422653 -4.3024572 142.5482 /T 2094-Jan-02 18:00 0.74378527505592 -4.2225922 142.3565 /T 2094-Jan-02 21:00 0.74348328654477 -4.1428803 142.1646 /T 2094-Jan-03 00:00 0.74318704756367 -4.0633236 141.9726 /T 2094-Jan-03 03:00 0.74289654683618 -3.9839241 141.7805 /T 2094-Jan-03 06:00 0.74261177293881 -3.9046838 141.5882 /T 2094-Jan-03 09:00 0.74233271430156 -3.8256048 141.3957 /T 2094-Jan-03 12:00 0.74205935920820 -3.7466891 141.2032 /T 2094-Jan-03 15:00 0.74179169579670 -3.6679387 141.0105 /T 2094-Jan-03 18:00 0.74152971205956 -3.5893556 140.8177 /T 2094-Jan-03 21:00 0.74127339584439 -3.5109418 140.6248 /T 2094-Jan-04 00:00 0.74102273485402 -3.4326994 140.4319 /T 2094-Jan-04 03:00 0.74077771664751 -3.3546303 140.2388 /T 2094-Jan-04 06:00 0.74053832863987 -3.2767364 140.0456 /T 2094-Jan-04 09:00 0.74030455810333 -3.1990199 139.8524 /T 2094-Jan-04 12:00 0.74007639216733 -3.1214826 139.6590 /T 2094-Jan-04 15:00 0.73985381781935 -3.0441265 139.4656 /T 2094-Jan-04 18:00 0.73963682190522 -2.9669536 139.2721 /T 2094-Jan-04 21:00 0.73942539113002 -2.8899658 139.0786 /T 2094-Jan-05 00:00 0.73921951205818 -2.8131651 138.8850 /T 2094-Jan-05 03:00 0.73901917111478 -2.7365533 138.6914 /T 2094-Jan-05 06:00 0.73882435458552 -2.6601325 138.4977 /T 2094-Jan-05 09:00 0.73863504861781 -2.5839045 138.3040 /T 2094-Jan-05 12:00 0.73845123922131 -2.5078712 138.1102 /T 2094-Jan-05 15:00 0.73827291226837 -2.4320345 137.9164 /T 2094-Jan-05 18:00 0.73810005349530 -2.3563963 137.7226 /T 2094-Jan-05 21:00 0.73793264850253 -2.2809585 137.5288 /T 2094-Jan-06 00:00 0.73777068275576 -2.2057230 137.3349 /T 2094-Jan-06 03:00 0.73761414158628 -2.1306915 137.1410 /T 2094-Jan-06 06:00 0.73746301019221 -2.0558660 136.9472 /T 2094-Jan-06 09:00 0.73731727363910 -1.9812482 136.7533 /T 2094-Jan-06 12:00 0.73717691686061 -1.9068401 136.5594 /T 2094-Jan-06 15:00 0.73704192465952 -1.8326433 136.3656 /T 2094-Jan-06 18:00 0.73691228170841 -1.7586597 136.1717 /T 2094-Jan-06 21:00 0.73678797255045 -1.6848911 135.9779 /T 2094-Jan-07 00:00 0.73666898160069 -1.6113392 135.7841 /T 2094-Jan-07 03:00 0.73655529314635 -1.5380059 135.5903 /T 2094-Jan-07 06:00 0.73644689134794 -1.4648928 135.3966 /T 2094-Jan-07 09:00 0.73634376024033 -1.3920017 135.2029 /T 2094-Jan-07 12:00 0.73624588373331 -1.3193343 135.0092 /T 2094-Jan-07 15:00 0.73615324561271 -1.2468923 134.8156 /T 2094-Jan-07 18:00 0.73606582954130 -1.1746775 134.6220 /T 2094-Jan-07 21:00 0.73598361905945 -1.1026914 134.4285 /T 2094-Jan-08 00:00 0.73590659758649 -1.0309359 134.2350 /T 2094-Jan-08 03:00 0.73583474842125 -0.9594125 134.0416 /T 2094-Jan-08 06:00 0.73576805474314 -0.8881229 133.8483 /T 2094-Jan-08 09:00 0.73570649961305 -0.8170688 133.6550 /T 2094-Jan-08 12:00 0.73565006597430 -0.7462517 133.4618 /T 2094-Jan-08 15:00 0.73559873665359 -0.6756732 133.2687 /T 2094-Jan-08 18:00 0.73555249436176 -0.6053350 133.0757 /T 2094-Jan-08 21:00 0.73551132169493 -0.5352387 132.8828 /T 2094-Jan-09 00:00 0.73547520113529 -0.4653858 132.6899 /T 2094-Jan-09 03:00 0.73544411505210 -0.3957778 132.4971 /T 2094-Jan-09 06:00 0.73541804570242 -0.3264164 132.3045 /T 2094-Jan-09 09:00 0.73539697523211 -0.2573030 132.1119 /T 2094-Jan-09 12:00 0.73538088567694 -0.1884392 131.9195 /T 2094-Jan-09 15:00 0.73536975896303 -0.1198264 131.7271 /T 2094-Jan-09 18:00 0.73536357690821 -0.0514663 131.5349 /T 2094-Jan-09 21:00 0.73536232122240 0.0166398 131.3428 /T 2094-Jan-10 00:00 0.73536597350880 0.0844903 131.1508 /T 2094-Jan-10 03:00 0.73537451526465 0.1520839 130.9590 /T 2094-Jan-10 06:00 0.73538792788200 0.2194190 130.7672 /T 2094-Jan-10 09:00 0.73540619264844 0.2864942 130.5756 /T 2094-Jan-10 12:00 0.73542929074822 0.3533080 130.3842 /T 2094-Jan-10 15:00 0.73545720326260 0.4198592 130.1928 /T 2094-Jan-10 18:00 0.73548991117097 0.4861462 130.0017 /T 2094-Jan-10 21:00 0.73552739535132 0.5521676 129.8106 /T 2094-Jan-11 00:00 0.73556963658131 0.6179221 129.6197 /T 2094-Jan-11 03:00 0.73561661553858 0.6834084 129.4290 /T 2094-Jan-11 06:00 0.73566831280171 0.7486249 129.2384 /T 2094-Jan-11 09:00 0.73572470885104 0.8135704 129.0480 /T 2094-Jan-11 12:00 0.73578578406885 0.8782435 128.8577 /T 2094-Jan-11 15:00 0.73585151874057 0.9426429 128.6676 /T 2094-Jan-11 18:00 0.73592189305505 1.0067672 128.4777 /T 2094-Jan-11 21:00 0.73599688710537 1.0706152 128.2880 /T 2094-Jan-12 00:00 0.73607648088947 1.1341854 128.0984 /T 2094-Jan-12 03:00 0.73616065431058 1.1974767 127.9090 /T 2094-Jan-12 06:00 0.73624938717807 1.2604876 127.7198 /T 2094-Jan-12 09:00 0.73634265920792 1.3232170 127.5308 /T 2094-Jan-12 12:00 0.73644045002331 1.3856635 127.3419 /T 2094-Jan-12 15:00 0.73654273915523 1.4478259 127.1533 /T 2094-Jan-12 18:00 0.73664950604305 1.5097029 126.9648 /T 2094-Jan-12 21:00 0.73676073003533 1.5712932 126.7766 /T 2094-Jan-13 00:00 0.73687639039015 1.6325956 126.5885 /T 2094-Jan-13 03:00 0.73699646627587 1.6936089 126.4007 /T 2094-Jan-13 06:00 0.73712093677185 1.7543317 126.2130 /T 2094-Jan-13 09:00 0.73724978086899 1.8147630 126.0256 /T 2094-Jan-13 12:00 0.73738297747053 1.8749015 125.8384 /T 2094-Jan-13 15:00 0.73752050539272 1.9347460 125.6514 /T 2094-Jan-13 18:00 0.73766234336534 1.9942953 125.4646 /T 2094-Jan-13 21:00 0.73780847003316 2.0535483 125.2780 /T 2094-Jan-14 00:00 0.73795886395606 2.1125037 125.0916 /T 2094-Jan-14 03:00 0.73811350361026 2.1711604 124.9055 /T 2094-Jan-14 06:00 0.73827236738934 2.2295173 124.7196 /T 2094-Jan-14 09:00 0.73843543360502 2.2875732 124.5339 /T 2094-Jan-14 12:00 0.73860268048845 2.3453271 124.3485 /T 2094-Jan-14 15:00 0.73877408619115 2.4027778 124.1633 /T 2094-Jan-14 18:00 0.73894962878632 2.4599243 123.9784 /T 2094-Jan-14 21:00 0.73912928627027 2.5167655 123.7936 /T 2094-Jan-15 00:00 0.73931303656348 2.5733004 123.6092 /T 2094-Jan-15 03:00 0.73950085751224 2.6295279 123.4249 /T 2094-Jan-15 06:00 0.73969272689045 2.6854471 123.2409 /T 2094-Jan-15 09:00 0.73988862240067 2.7410570 123.0572 /T 2094-Jan-15 12:00 0.74008852167639 2.7963566 122.8737 /T 2094-Jan-15 15:00 0.74029240228362 2.8513450 122.6905 /T 2094-Jan-15 18:00 0.74050024172282 2.9060214 122.5076 /T 2094-Jan-15 21:00 0.74071201743104 2.9603849 122.3248 /T 2094-Jan-16 00:00 0.74092770678392 3.0144345 122.1424 /T 2094-Jan-16 03:00 0.74114728709794 3.0681696 121.9602 /T 2094-Jan-16 06:00 0.74137073563279 3.1215894 121.7783 /T 2094-Jan-16 09:00 0.74159802959375 3.1746931 121.5967 /T 2094-Jan-16 12:00 0.74182914613403 3.2274800 121.4153 /T 2094-Jan-16 15:00 0.74206406235767 3.2799494 121.2342 /T 2094-Jan-16 18:00 0.74230275532187 3.3321008 121.0534 /T 2094-Jan-16 21:00 0.74254520203998 3.3839335 120.8728 /T 2094-Jan-17 00:00 0.74279137948411 3.4354470 120.6926 /T 2094-Jan-17 03:00 0.74304126458799 3.4866407 120.5126 /T 2094-Jan-17 06:00 0.74329483425020 3.5375143 120.3329 /T 2094-Jan-17 09:00 0.74355206533661 3.5880672 120.1535 /T 2094-Jan-17 12:00 0.74381293468385 3.6382991 119.9744 /T 2094-Jan-17 15:00 0.74407741910205 3.6882097 119.7955 /T 2094-Jan-17 18:00 0.74434549537818 3.7377986 119.6170 /T 2094-Jan-17 21:00 0.74461714027876 3.7870656 119.4387 /T 2094-Jan-18 00:00 0.74489233055319 3.8360104 119.2608 /T 2094-Jan-18 03:00 0.74517104293670 3.8846330 119.0831 /T 2094-Jan-18 06:00 0.74545325415358 3.9329331 118.9057 /T 2094-Jan-18 09:00 0.74573894091996 3.9809107 118.7287 /T 2094-Jan-18 12:00 0.74602807994700 4.0285657 118.5519 /T 2094-Jan-18 15:00 0.74632064794377 4.0758981 118.3754 /T 2094-Jan-18 18:00 0.74661662162031 4.1229079 118.1993 /T 2094-Jan-18 21:00 0.74691597769019 4.1695953 118.0234 /T 2094-Jan-19 00:00 0.74721869287367 4.2159603 117.8479 /T 2094-Jan-19 03:00 0.74752474390034 4.2620030 117.6727 /T 2094-Jan-19 06:00 0.74783410751161 4.3077237 117.4978 /T 2094-Jan-19 09:00 0.74814676046361 4.3531226 117.3232 /T 2094-Jan-19 12:00 0.74846267952946 4.3981999 117.1489 /T 2094-Jan-19 15:00 0.74878184150170 4.4429559 116.9749 /T 2094-Jan-19 18:00 0.74910422319501 4.4873910 116.8012 /T 2094-Jan-19 21:00 0.74942980144797 4.5315055 116.6279 /T 2094-Jan-20 00:00 0.74975855312564 4.5752997 116.4549 /T $$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. 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. Units: AU and KM/S 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES 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 *******************************************************************************