API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 1I/'Oumuamua (A/2017 U1) 2024-Apr-27 06:05:06 Rec #:50455050 (+COV) Soln.date: 2018-Jun-26_12:17:57 # obs: 207 (2017-2018) NOTE: This orbit solution includes non-gravitational perturbations as described in Micheli et al. (2018): http://dx.doi.org/10.1038/s41586-018-0254-4 The behavior of these accelerations outside the observed data arc from 2017 October 14 to 2018 January 2 can only be assumed. Predictions outside this time interval, especially prior to October 2017, could be much more uncertain than reported here. IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458080.5 ! 2017-Nov-23.00 (TDB) Residual RMS= .063527 EC= 1.201133796102373 QR= .2559115812959116 TP= 2458006.0073213754 OM= 24.59690955523242 W= 241.8105360304898 IN= 122.7417062847286 A= -1.27234500742808 MA= 51.15761979369358 ADIST= 9.999999E99 PER= 9.999999E99 N= .686746949 ANGMOM= .012910695 DAN= 1.30212 DDN= .35938 L= 159.3364991 B= -47.84677 MOID= .0958212 TP= 2017-Sep-09.5073213754 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 7.937 H= 22.08 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 2.790193367004E-7 A2= 1.441264152527E-8 A3= 1.573922634125E-8 Non-standard or simulated/proxy model: ALN= .04083733261 NK= 2.6 NM= 2. NN= 3. R0= 5. ASTEROID comments: 1: soln ref.= JPL#16 2: source=ORB; Sol. 7c, Micheli et al. 2018 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Sat Apr 27 06:05:06 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 1I/'Oumuamua (A/2017 U1) {source: JPL#16} Center body name: Sun (10) {source: DE441} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2034-Jan-01 00:00:00.0000 UT Stop time : A.D. 2034-Dec-31 00:00:00.0000 UT Step-size : 120 steps ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -695700.0 {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 : IAU_SUN {East-longitude positive} Center radii : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : None 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.240426.p240720 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-26. PREDICTS-> 2024-JUL-19 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 n.a. , 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= 2458080.5 ! 2017-Nov-23.00 (TDB) Residual RMS= .063527 EC= 1.201133796102373 QR= .2559115812959116 TP= 2458006.0073213754 OM= 24.59690955523242 W= 241.8105360304898 IN= 122.7417062847286 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.889136186533479E+00 Y= 5.222899434623107E-01 Z= 5.088057830311858E-01 VX= 2.106502285864550E-02 VY= 3.535022471254454E-04 VZ= 8.998631872968255E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 7.937 H= 22.08 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 2.790193367004E-7 A2= 1.441264152527E-8 A3= 1.573922634125E-8 Non-standard or simulated/proxy model: ALN= .04083733261 NK= 2.6 NM= 2. NN= 3. R0= 5. ********************************************************************************** Date__(UT)__HR:MN:SC.fff r rdot VmagSn VmagOb ********************************************************************************** $$SOE 2034-Jan-01 00:00:00.000 95.73536553059 26.7478559 26.7488456 26.7488278 2034-Jan-04 00:48:00.000 95.78222063726 26.7476380 26.7486270 26.7486090 2034-Jan-07 01:36:00.000 95.82907536179 26.7474196 26.7484079 26.7483897 2034-Jan-10 02:24:00.000 95.87592970332 26.7472007 26.7481884 26.7481699 2034-Jan-13 03:12:00.000 95.92278366099 26.7469813 26.7479684 26.7479497 2034-Jan-16 04:00:00.000 95.96963723389 26.7467614 26.7477479 26.7477289 2034-Jan-19 04:48:00.000 96.01649042113 26.7465409 26.7475268 26.7475076 2034-Jan-22 05:36:00.000 96.06334322191 26.7463201 26.7473053 26.7472859 2034-Jan-25 06:24:00.000 96.11019563567 26.7460991 26.7470836 26.7470640 2034-Jan-28 07:12:00.000 96.15704766225 26.7458781 26.7468617 26.7468422 2034-Jan-31 08:00:00.000 96.20389930200 26.7456575 26.7466402 26.7466207 2034-Feb-03 08:48:00.000 96.25075055583 26.7454375 26.7464192 26.7463999 2034-Feb-06 09:36:00.000 96.29760142491 26.7452182 26.7461989 26.7461798 2034-Feb-09 10:24:00.000 96.34445191041 26.7449995 26.7459792 26.7459602 2034-Feb-12 11:12:00.000 96.39130201324 26.7447812 26.7457600 26.7457411 2034-Feb-15 12:00:00.000 96.43815173395 26.7445631 26.7455412 26.7455223 2034-Feb-18 12:48:00.000 96.48500107284 26.7443452 26.7453224 26.7453035 2034-Feb-21 13:36:00.000 96.53185003003 26.7441273 26.7451038 26.7450848 2034-Feb-24 14:24:00.000 96.57869860558 26.7439094 26.7448852 26.7448661 2034-Feb-27 15:12:00.000 96.62554679952 26.7436916 26.7446666 26.7446474 2034-Mar-02 16:00:00.000 96.67239461190 26.7434738 26.7444480 26.7444288 2034-Mar-05 16:48:00.000 96.71924204285 26.7432561 26.7442295 26.7442103 2034-Mar-08 17:36:00.000 96.76608909254 26.7430385 26.7440111 26.7439919 2034-Mar-11 18:24:00.000 96.81293576119 26.7428210 26.7437929 26.7437737 2034-Mar-14 19:12:00.000 96.85978204910 26.7426038 26.7435748 26.7435556 2034-Mar-17 20:00:00.000 96.90662795663 26.7423867 26.7433569 26.7433378 2034-Mar-20 20:48:00.000 96.95347348419 26.7421699 26.7431393 26.7431202 2034-Mar-23 21:36:00.000 97.00031863221 26.7419534 26.7429220 26.7429028 2034-Mar-26 22:24:00.000 97.04716340118 26.7417371 26.7427049 26.7426858 2034-Mar-29 23:12:00.000 97.09400779159 26.7415211 26.7424881 26.7424690 2034-Apr-02 00:00:00.000 97.14085180397 26.7413055 26.7422716 26.7422526 2034-Apr-05 00:48:00.000 97.18769543881 26.7410901 26.7420554 26.7420364 2034-Apr-08 01:36:00.000 97.23453869662 26.7408749 26.7418395 26.7418205 2034-Apr-11 02:24:00.000 97.28138157786 26.7406601 26.7416238 26.7416049 2034-Apr-14 03:12:00.000 97.32822408297 26.7404455 26.7414084 26.7413896 2034-Apr-17 04:00:00.000 97.37506621242 26.7402312 26.7411933 26.7411745 2034-Apr-20 04:48:00.000 97.42190796675 26.7400172 26.7409785 26.7409597 2034-Apr-23 05:36:00.000 97.46874934669 26.7398037 26.7407641 26.7407455 2034-Apr-26 06:24:00.000 97.51559035335 26.7395910 26.7405504 26.7405321 2034-Apr-29 07:12:00.000 97.56243098830 26.7393794 26.7403377 26.7403196 2034-May-02 08:00:00.000 97.60927125361 26.7391690 26.7401261 26.7401085 2034-May-05 08:48:00.000 97.65611115154 26.7389599 26.7399159 26.7398987 2034-May-08 09:36:00.000 97.70295068428 26.7387520 26.7397068 26.7396900 2034-May-11 10:24:00.000 97.74978985364 26.7385450 26.7394988 26.7394822 2034-May-14 11:12:00.000 97.79662866100 26.7383386 26.7392915 26.7392751 2034-May-17 12:00:00.000 97.84346710739 26.7381328 26.7390848 26.7390684 2034-May-20 12:48:00.000 97.89030519352 26.7379273 26.7388785 26.7388622 2034-May-23 13:36:00.000 97.93714291992 26.7377220 26.7386724 26.7386561 2034-May-26 14:24:00.000 97.98398028698 26.7375169 26.7384666 26.7384503 2034-May-29 15:12:00.000 98.03081729496 26.7373120 26.7382609 26.7382446 2034-Jun-01 16:00:00.000 98.07765394408 26.7371072 26.7380553 26.7380389 2034-Jun-04 16:48:00.000 98.12449023442 26.7369024 26.7378498 26.7378334 2034-Jun-07 17:36:00.000 98.17132616601 26.7366975 26.7376442 26.7376278 2034-Jun-10 18:24:00.000 98.21816173881 26.7364927 26.7374387 26.7374221 2034-Jun-13 19:12:00.000 98.26499695267 26.7362877 26.7372330 26.7372163 2034-Jun-16 20:00:00.000 98.31183180735 26.7360826 26.7370272 26.7370104 2034-Jun-19 20:48:00.000 98.35866630252 26.7358772 26.7368213 26.7368043 2034-Jun-22 21:36:00.000 98.40550043775 26.7356716 26.7366150 26.7365979 2034-Jun-25 22:24:00.000 98.45233421248 26.7354656 26.7364085 26.7363911 2034-Jun-28 23:12:00.000 98.49916762606 26.7352592 26.7362015 26.7361839 2034-Jul-02 00:00:00.000 98.54600067770 26.7350523 26.7359941 26.7359763 2034-Jul-05 00:48:00.000 98.59283336649 26.7348449 26.7357862 26.7357680 2034-Jul-08 01:36:00.000 98.63966569138 26.7346368 26.7355776 26.7355592 2034-Jul-11 02:24:00.000 98.68649765124 26.7344281 26.7353685 26.7353497 2034-Jul-14 03:12:00.000 98.73332924483 26.7342186 26.7351586 26.7351395 2034-Jul-17 04:00:00.000 98.78016047096 26.7340085 26.7349480 26.7349286 2034-Jul-20 04:48:00.000 98.82699132854 26.7337978 26.7347368 26.7347172 2034-Jul-23 05:36:00.000 98.87382181684 26.7335869 26.7345253 26.7345055 2034-Jul-26 06:24:00.000 98.92065193555 26.7333759 26.7343136 26.7342938 2034-Jul-29 07:12:00.000 98.96748168482 26.7331651 26.7341020 26.7340822 2034-Aug-01 08:00:00.000 99.01431106503 26.7329545 26.7338907 26.7338709 2034-Aug-04 08:48:00.000 99.06114007645 26.7327440 26.7336795 26.7336596 2034-Aug-07 09:36:00.000 99.10796871904 26.7325333 26.7334682 26.7334482 2034-Aug-10 10:24:00.000 99.15479699235 26.7323223 26.7332567 26.7332365 2034-Aug-13 11:12:00.000 99.20162489560 26.7321108 26.7330447 26.7330242 2034-Aug-16 12:00:00.000 99.24845242781 26.7318986 26.7328322 26.7328113 2034-Aug-19 12:48:00.000 99.29527958784 26.7316858 26.7326189 26.7325978 2034-Aug-22 13:36:00.000 99.34210637454 26.7314723 26.7324051 26.7323836 2034-Aug-25 14:24:00.000 99.38893278672 26.7312582 26.7321905 26.7321688 2034-Aug-28 15:12:00.000 99.43575882323 26.7310434 26.7319753 26.7319533 2034-Aug-31 16:00:00.000 99.48258448296 26.7308280 26.7317595 26.7317372 2034-Sep-03 16:48:00.000 99.52940976483 26.7306120 26.7315431 26.7315205 2034-Sep-06 17:36:00.000 99.57623466784 26.7303954 26.7313261 26.7313032 2034-Sep-09 18:24:00.000 99.62305919105 26.7301783 26.7311086 26.7310854 2034-Sep-12 19:12:00.000 99.66988333355 26.7299607 26.7308906 26.7308672 2034-Sep-15 20:00:00.000 99.71670709452 26.7297427 26.7306721 26.7306485 2034-Sep-18 20:48:00.000 99.76353047319 26.7295242 26.7304532 26.7304293 2034-Sep-21 21:36:00.000 99.81035346884 26.7293054 26.7302339 26.7302098 2034-Sep-24 22:24:00.000 99.85717608082 26.7290862 26.7300143 26.7299900 2034-Sep-27 23:12:00.000 99.90399830851 26.7288666 26.7297943 26.7297698 2034-Oct-01 00:00:00.000 99.95082015133 26.7286467 26.7295739 26.7295493 2034-Oct-04 00:48:00.000 99.99764160877 26.7284266 26.7293533 26.7293285 2034-Oct-07 01:36:00.000 100.0444626803 26.7282062 26.7291325 26.7291075 2034-Oct-10 02:24:00.000 100.0912833657 26.7279856 26.7289114 26.7288863 2034-Oct-13 03:12:00.000 100.1381036646 26.7277650 26.7286902 26.7286651 2034-Oct-16 04:00:00.000 100.1849235772 26.7275445 26.7284692 26.7284440 2034-Oct-19 04:48:00.000 100.2317431039 26.7273245 26.7282484 26.7282235 2034-Oct-22 05:36:00.000 100.2785622461 26.7271054 26.7280285 26.7280038 2034-Oct-25 06:24:00.000 100.3253810054 26.7268874 26.7278095 26.7277852 2034-Oct-28 07:12:00.000 100.3721993840 26.7266707 26.7275918 26.7275679 2034-Oct-31 08:00:00.000 100.4190173839 26.7264551 26.7273752 26.7273517 2034-Nov-03 08:48:00.000 100.4658350070 26.7262405 26.7271598 26.7271366 2034-Nov-06 09:36:00.000 100.5126522551 26.7260267 26.7269452 26.7269223 2034-Nov-09 10:24:00.000 100.5594691294 26.7258137 26.7267315 26.7267087 2034-Nov-12 11:12:00.000 100.6062856312 26.7256014 26.7265184 26.7264958 2034-Nov-15 12:00:00.000 100.6531017616 26.7253897 26.7263060 26.7262836 2034-Nov-18 12:48:00.000 100.6999175219 26.7251787 26.7260942 26.7260720 2034-Nov-21 13:36:00.000 100.7467329132 26.7249684 26.7258831 26.7258612 2034-Nov-24 14:24:00.000 100.7935479368 26.7247589 26.7256728 26.7256511 2034-Nov-27 15:12:00.000 100.8403625940 26.7245501 26.7254632 26.7254417 2034-Nov-30 16:00:00.000 100.8871768861 26.7243421 26.7252544 26.7252331 2034-Dec-03 16:48:00.000 100.9339908146 26.7241348 26.7250464 26.7250253 2034-Dec-06 17:36:00.000 100.9808043808 26.7239284 26.7248392 26.7248184 2034-Dec-09 18:24:00.000 101.0276175861 26.7237228 26.7246328 26.7246122 2034-Dec-12 19:12:00.000 101.0744304321 26.7235181 26.7244272 26.7244069 2034-Dec-15 20:00:00.000 101.1212429200 26.7233141 26.7242224 26.7242024 2034-Dec-18 20:48:00.000 101.1680550513 26.7231109 26.7240184 26.7239986 2034-Dec-21 21:36:00.000 101.2148668274 26.7229084 26.7238152 26.7237956 2034-Dec-24 22:24:00.000 101.2616782494 26.7227066 26.7236127 26.7235933 2034-Dec-27 23:12:00.000 101.3084893186 26.7225055 26.7234108 26.7233916 2034-Dec-31 00:00:00.000 101.3553000360 26.7223050 26.7232096 26.7231905 $$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 'VmagSn VmagOb' = Magnitude of target centers' velocity with respect to the Sun ("VmagSn") and the observer ("VmagOb") at the time light left the target center to be observed (print time minus down-leg light-time). These are absolute values of the velocity vectors (total speeds) and do NOT indicate direction of motion. Units: 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 **********************************************************************************