API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 13P/Olbers 2025-Dec-12 17:51:38 Rec #:90000227 (+COV) Soln.date: 2025-Sep-30_14:14:20 # obs: 2478 (1887-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459120.5 ! 2020-Sep-28.0000000 (TDB) RMSW= n.a. EC= .9297100285403828 QR= 1.17255719369511 TP= 2460492.2364692949 OM= 85.86236916758355 W= 64.52888366900733 IN= 44.62483238363136 A= 16.68171389667961 MA= 340.1567064902483 ADIST= 32.19087059966411 PER= 68.134834438133 N= .01446582 ANGMOM= .025875842 DAN= 1.61641 DDN= 3.77007 L= 142.0678867 B= 39.3594792 MOID= .47064099 TP= 2024-Jun-30.7364692949 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.9 M2= n.a. k1= 18. 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= 3.862996101379E-9 A2= 5.903173983097E-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#72, data arc: 1887-08-27 to 2025-07-31 2: k1=18.; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Fri Dec 12 17:51:38 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 13P/Olbers {source: JPL#72} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2094-Mar-01 00:00:00.0000 UT Stop time : A.D. 2094-Mar-31 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.251212.p260310 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-DEC-12. PREDICTS-> 2026-MAR-09 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= 2459120.5 ! 2020-Sep-28.0000000 (TDB) RMSW= n.a. EC= .9297100285403828 QR= 1.17255719369511 TP= 2460492.2364692949 OM= 85.86236916758355 W= 64.52888366900733 IN= 44.62483238363136 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 8.090513175701647E+00 Y= 3.546673362360785E+00 Z=-7.110033124163284E+00 VX=-3.838409416404907E-03 VY= 3.413188162575884E-04 VZ= 4.427422341586901E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.9 M2= n.a. k1= 18. 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= 3.862996101379E-9 A2= 5.903173983097E-10 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 2094-Mar-01 00:00 1.219835903814 -6.3706865 2094-Mar-01 03:00 1.219377348048 -6.3330888 2094-Mar-01 06:00 1.218921508620 -6.2954326 2094-Mar-01 09:00 1.218468389743 -6.2577182 2094-Mar-01 12:00 1.218017995612 -6.2199458 2094-Mar-01 15:00 1.217570330405 -6.1821157 2094-Mar-01 18:00 1.217125398279 -6.1442280 2094-Mar-01 21:00 1.216683203375 -6.1062832 2094-Mar-02 00:00 1.216243749815 -6.0682815 2094-Mar-02 03:00 1.215807041700 -6.0302230 2094-Mar-02 06:00 1.215373083114 -5.9921081 2094-Mar-02 09:00 1.214941878123 -5.9539370 2094-Mar-02 12:00 1.214513430772 -5.9157100 2094-Mar-02 15:00 1.214087745086 -5.8774274 2094-Mar-02 18:00 1.213664825072 -5.8390895 2094-Mar-02 21:00 1.213244674716 -5.8006964 2094-Mar-03 00:00 1.212827297987 -5.7622486 2094-Mar-03 03:00 1.212412698830 -5.7237462 2094-Mar-03 06:00 1.212000881172 -5.6851896 2094-Mar-03 09:00 1.211591848921 -5.6465790 2094-Mar-03 12:00 1.211185605961 -5.6079147 2094-Mar-03 15:00 1.210782156159 -5.5691971 2094-Mar-03 18:00 1.210381503359 -5.5304263 2094-Mar-03 21:00 1.209983651385 -5.4916027 2094-Mar-04 00:00 1.209588604040 -5.4527265 2094-Mar-04 03:00 1.209196365106 -5.4137982 2094-Mar-04 06:00 1.208806938343 -5.3748179 2094-Mar-04 09:00 1.208420327490 -5.3357860 2094-Mar-04 12:00 1.208036536264 -5.2967027 2094-Mar-04 15:00 1.207655568361 -5.2575684 2094-Mar-04 18:00 1.207277427455 -5.2183833 2094-Mar-04 21:00 1.206902117196 -5.1791479 2094-Mar-05 00:00 1.206529641215 -5.1398623 2094-Mar-05 03:00 1.206160003119 -5.1005269 2094-Mar-05 06:00 1.205793206491 -5.0611420 2094-Mar-05 09:00 1.205429254895 -5.0217080 2094-Mar-05 12:00 1.205068151869 -4.9822251 2094-Mar-05 15:00 1.204709900930 -4.9426936 2094-Mar-05 18:00 1.204354505572 -4.9031139 2094-Mar-05 21:00 1.204001969263 -4.8634863 2094-Mar-06 00:00 1.203652295452 -4.8238112 2094-Mar-06 03:00 1.203305487561 -4.7840888 2094-Mar-06 06:00 1.202961548991 -4.7443194 2094-Mar-06 09:00 1.202620483117 -4.7045035 2094-Mar-06 12:00 1.202282293292 -4.6646413 2094-Mar-06 15:00 1.201946982844 -4.6247331 2094-Mar-06 18:00 1.201614555078 -4.5847794 2094-Mar-06 21:00 1.201285013272 -4.5447804 2094-Mar-07 00:00 1.200958360683 -4.5047365 2094-Mar-07 03:00 1.200634600541 -4.4646480 2094-Mar-07 06:00 1.200313736052 -4.4245153 2094-Mar-07 09:00 1.199995770399 -4.3843387 2094-Mar-07 12:00 1.199680706738 -4.3441185 2094-Mar-07 15:00 1.199368548200 -4.3038551 2094-Mar-07 18:00 1.199059297891 -4.2635489 2094-Mar-07 21:00 1.198752958893 -4.2232002 2094-Mar-08 00:00 1.198449534261 -4.1828094 2094-Mar-08 03:00 1.198149027025 -4.1423767 2094-Mar-08 06:00 1.197851440189 -4.1019026 2094-Mar-08 09:00 1.197556776733 -4.0613875 2094-Mar-08 12:00 1.197265039608 -4.0208316 2094-Mar-08 15:00 1.196976231741 -3.9802354 2094-Mar-08 18:00 1.196690356032 -3.9395992 2094-Mar-08 21:00 1.196407415356 -3.8989234 2094-Mar-09 00:00 1.196127412559 -3.8582083 2094-Mar-09 03:00 1.195850350463 -3.8174544 2094-Mar-09 06:00 1.195576231863 -3.7766619 2094-Mar-09 09:00 1.195305059526 -3.7358313 2094-Mar-09 12:00 1.195036836192 -3.6949629 2094-Mar-09 15:00 1.194771564575 -3.6540571 2094-Mar-09 18:00 1.194509247362 -3.6131143 2094-Mar-09 21:00 1.194249887212 -3.5721348 2094-Mar-10 00:00 1.193993486757 -3.5311191 2094-Mar-10 03:00 1.193740048602 -3.4900675 2094-Mar-10 06:00 1.193489575322 -3.4489804 2094-Mar-10 09:00 1.193242069468 -3.4078582 2094-Mar-10 12:00 1.192997533561 -3.3667013 2094-Mar-10 15:00 1.192755970094 -3.3255100 2094-Mar-10 18:00 1.192517381532 -3.2842848 2094-Mar-10 21:00 1.192281770314 -3.2430260 2094-Mar-11 00:00 1.192049138847 -3.2017341 2094-Mar-11 03:00 1.191819489513 -3.1604094 2094-Mar-11 06:00 1.191592824664 -3.1190523 2094-Mar-11 09:00 1.191369146624 -3.0776632 2094-Mar-11 12:00 1.191148457687 -3.0362425 2094-Mar-11 15:00 1.190930760121 -2.9947906 2094-Mar-11 18:00 1.190716056162 -2.9533080 2094-Mar-11 21:00 1.190504348020 -2.9117949 2094-Mar-12 00:00 1.190295637873 -2.8702519 2094-Mar-12 03:00 1.190089927873 -2.8286793 2094-Mar-12 06:00 1.189887220140 -2.7870775 2094-Mar-12 09:00 1.189687516766 -2.7454470 2094-Mar-12 12:00 1.189490819814 -2.7037881 2094-Mar-12 15:00 1.189297131317 -2.6621013 2094-Mar-12 18:00 1.189106453278 -2.6203869 2094-Mar-12 21:00 1.188918787671 -2.5786454 2094-Mar-13 00:00 1.188734136439 -2.5368771 2094-Mar-13 03:00 1.188552501498 -2.4950826 2094-Mar-13 06:00 1.188373884730 -2.4532622 2094-Mar-13 09:00 1.188198287990 -2.4114163 2094-Mar-13 12:00 1.188025713102 -2.3695454 2094-Mar-13 15:00 1.187856161860 -2.3276498 2094-Mar-13 18:00 1.187689636027 -2.2857300 2094-Mar-13 21:00 1.187526137338 -2.2437864 2094-Mar-14 00:00 1.187365667493 -2.2018195 2094-Mar-14 03:00 1.187208228167 -2.1598296 2094-Mar-14 06:00 1.187053821000 -2.1178172 2094-Mar-14 09:00 1.186902447604 -2.0757827 2094-Mar-14 12:00 1.186754109559 -2.0337265 2094-Mar-14 15:00 1.186608808414 -1.9916491 2094-Mar-14 18:00 1.186466545689 -1.9495508 2094-Mar-14 21:00 1.186327322871 -1.9074322 2094-Mar-15 00:00 1.186191141417 -1.8652936 2094-Mar-15 03:00 1.186058002754 -1.8231355 2094-Mar-15 06:00 1.185927908274 -1.7809583 2094-Mar-15 09:00 1.185800859343 -1.7387624 2094-Mar-15 12:00 1.185676857292 -1.6965483 2094-Mar-15 15:00 1.185555903422 -1.6543163 2094-Mar-15 18:00 1.185437999003 -1.6120671 2094-Mar-15 21:00 1.185323145273 -1.5698009 2094-Mar-16 00:00 1.185211343439 -1.5275182 2094-Mar-16 03:00 1.185102594675 -1.4852194 2094-Mar-16 06:00 1.184996900125 -1.4429051 2094-Mar-16 09:00 1.184894260902 -1.4005756 2094-Mar-16 12:00 1.184794678085 -1.3582313 2094-Mar-16 15:00 1.184698152724 -1.3158727 2094-Mar-16 18:00 1.184604685834 -1.2735003 2094-Mar-16 21:00 1.184514278400 -1.2311144 2094-Mar-17 00:00 1.184426931376 -1.1887156 2094-Mar-17 03:00 1.184342645683 -1.1463043 2094-Mar-17 06:00 1.184261422210 -1.1038808 2094-Mar-17 09:00 1.184183261814 -1.0614458 2094-Mar-17 12:00 1.184108165320 -1.0189995 2094-Mar-17 15:00 1.184036133521 -0.9765424 2094-Mar-17 18:00 1.183967167178 -0.9340751 2094-Mar-17 21:00 1.183901267020 -0.8915979 2094-Mar-18 00:00 1.183838433744 -0.8491112 2094-Mar-18 03:00 1.183778668013 -0.8066156 2094-Mar-18 06:00 1.183721970461 -0.7641115 2094-Mar-18 09:00 1.183668341686 -0.7215993 2094-Mar-18 12:00 1.183617782256 -0.6790794 2094-Mar-18 15:00 1.183570292707 -0.6365524 2094-Mar-18 18:00 1.183525873542 -0.5940187 2094-Mar-18 21:00 1.183484525231 -0.5514786 2094-Mar-19 00:00 1.183446248212 -0.5089327 2094-Mar-19 03:00 1.183411042890 -0.4663814 2094-Mar-19 06:00 1.183378909640 -0.4238252 2094-Mar-19 09:00 1.183349848802 -0.3812645 2094-Mar-19 12:00 1.183323860685 -0.3386998 2094-Mar-19 15:00 1.183300945563 -0.2961314 2094-Mar-19 18:00 1.183281103681 -0.2535599 2094-Mar-19 21:00 1.183264335250 -0.2109858 2094-Mar-20 00:00 1.183250640447 -0.1684094 2094-Mar-20 03:00 1.183240019420 -0.1258312 2094-Mar-20 06:00 1.183232472280 -0.0832516 2094-Mar-20 09:00 1.183227999109 -0.0406712 2094-Mar-20 12:00 1.183226599955 0.0019096 2094-Mar-20 15:00 1.183228274834 0.0444905 2094-Mar-20 18:00 1.183233023729 0.0870709 2094-Mar-20 21:00 1.183240846591 0.1296503 2094-Mar-21 00:00 1.183251743337 0.1722284 2094-Mar-21 03:00 1.183265713854 0.2148047 2094-Mar-21 06:00 1.183282757994 0.2573787 2094-Mar-21 09:00 1.183302875578 0.2999500 2094-Mar-21 12:00 1.183326066394 0.3425182 2094-Mar-21 15:00 1.183352330197 0.3850827 2094-Mar-21 18:00 1.183381666710 0.4276431 2094-Mar-21 21:00 1.183414075624 0.4701990 2094-Mar-22 00:00 1.183449556598 0.5127500 2094-Mar-22 03:00 1.183488109255 0.5552956 2094-Mar-22 06:00 1.183529733191 0.5978352 2094-Mar-22 09:00 1.183574427964 0.6403686 2094-Mar-22 12:00 1.183622193105 0.6828952 2094-Mar-22 15:00 1.183673028109 0.7254146 2094-Mar-22 18:00 1.183726932439 0.7679263 2094-Mar-22 21:00 1.183783905527 0.8104299 2094-Mar-23 00:00 1.183843946771 0.8529250 2094-Mar-23 03:00 1.183907055539 0.8954111 2094-Mar-23 06:00 1.183973231166 0.9378877 2094-Mar-23 09:00 1.184042472952 0.9803544 2094-Mar-23 12:00 1.184114780169 1.0228108 2094-Mar-23 15:00 1.184190152055 1.0652564 2094-Mar-23 18:00 1.184268587815 1.1076908 2094-Mar-23 21:00 1.184350086623 1.1501135 2094-Mar-24 00:00 1.184434647621 1.1925241 2094-Mar-24 03:00 1.184522269918 1.2349221 2094-Mar-24 06:00 1.184612952593 1.2773071 2094-Mar-24 09:00 1.184706694691 1.3196787 2094-Mar-24 12:00 1.184803495226 1.3620364 2094-Mar-24 15:00 1.184903353181 1.4043798 2094-Mar-24 18:00 1.185006267505 1.4467084 2094-Mar-24 21:00 1.185112237118 1.4890218 2094-Mar-25 00:00 1.185221260906 1.5313196 2094-Mar-25 03:00 1.185333337725 1.5736012 2094-Mar-25 06:00 1.185448466398 1.6158664 2094-Mar-25 09:00 1.185566645718 1.6581146 2094-Mar-25 12:00 1.185687874445 1.7003455 2094-Mar-25 15:00 1.185812151309 1.7425585 2094-Mar-25 18:00 1.185939475008 1.7847532 2094-Mar-25 21:00 1.186069844207 1.8269292 2094-Mar-26 00:00 1.186203257544 1.8690862 2094-Mar-26 03:00 1.186339713621 1.9112235 2094-Mar-26 06:00 1.186479211013 1.9533409 2094-Mar-26 09:00 1.186621748260 1.9954379 2094-Mar-26 12:00 1.186767323875 2.0375140 2094-Mar-26 15:00 1.186915936336 2.0795689 2094-Mar-26 18:00 1.187067584095 2.1216021 2094-Mar-26 21:00 1.187222265568 2.1636131 2094-Mar-27 00:00 1.187379979144 2.2056016 2094-Mar-27 03:00 1.187540723180 2.2475671 2094-Mar-27 06:00 1.187704496003 2.2895092 2094-Mar-27 09:00 1.187871295908 2.3314275 2094-Mar-27 12:00 1.188041121161 2.3733216 2094-Mar-27 15:00 1.188213969998 2.4151910 2094-Mar-27 18:00 1.188389840624 2.4570353 2094-Mar-27 21:00 1.188568731213 2.4988541 2094-Mar-28 00:00 1.188750639910 2.5406470 2094-Mar-28 03:00 1.188935564830 2.5824136 2094-Mar-28 06:00 1.189123504058 2.6241535 2094-Mar-28 09:00 1.189314455649 2.6658662 2094-Mar-28 12:00 1.189508417628 2.7075513 2094-Mar-28 15:00 1.189705387990 2.7492084 2094-Mar-28 18:00 1.189905364702 2.7908372 2094-Mar-28 21:00 1.190108345700 2.8324372 2094-Mar-29 00:00 1.190314328890 2.8740080 2094-Mar-29 03:00 1.190523312151 2.9155492 2094-Mar-29 06:00 1.190735293332 2.9570603 2094-Mar-29 09:00 1.190950270250 2.9985411 2094-Mar-29 12:00 1.191168240697 3.0399910 2094-Mar-29 15:00 1.191389202435 3.0814098 2094-Mar-29 18:00 1.191613153195 3.1227969 2094-Mar-29 21:00 1.191840090681 3.1641520 2094-Mar-30 00:00 1.192070012569 3.2054747 2094-Mar-30 03:00 1.192302916506 3.2467646 2094-Mar-30 06:00 1.192538800108 3.2880213 2094-Mar-30 09:00 1.192777660967 3.3292444 2094-Mar-30 12:00 1.193019496644 3.3704336 2094-Mar-30 15:00 1.193264304672 3.4115884 2094-Mar-30 18:00 1.193512082557 3.4527084 2094-Mar-30 21:00 1.193762827776 3.4937933 2094-Mar-31 00:00 1.194016537779 3.5348427 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov *******************************************************************************