******************************************************************************* JPL/HORIZONS 1I/'Oumuamua (A/2017 U1) 2024-Apr-26 22:27:24 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 / WWW_USER Fri Apr 26 22:27:24 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. 2429-Feb-01 00:00:00.0000 UT Stop time : A.D. 2429-Apr-01 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 2429-Feb-01 00:00:00.000 2299.588387250 26.4031172 26.4031356 26.4031209 2429-Feb-01 11:48:00.000 2299.595884052 26.4031172 26.4031354 26.4031209 2429-Feb-01 23:36:00.000 2299.603380854 26.4031172 26.4031351 26.4031209 2429-Feb-02 11:24:00.000 2299.610877656 26.4031172 26.4031349 26.4031209 2429-Feb-02 23:12:00.000 2299.618374458 26.4031172 26.4031346 26.4031209 2429-Feb-03 11:00:00.000 2299.625871260 26.4031173 26.4031343 26.4031210 2429-Feb-03 22:48:00.000 2299.633368062 26.4031174 26.4031340 26.4031211 2429-Feb-04 10:36:00.000 2299.640864864 26.4031175 26.4031338 26.4031212 2429-Feb-04 22:24:00.000 2299.648361666 26.4031177 26.4031335 26.4031214 2429-Feb-05 10:12:00.000 2299.655858469 26.4031178 26.4031332 26.4031215 2429-Feb-05 22:00:00.000 2299.663355271 26.4031180 26.4031329 26.4031217 2429-Feb-06 09:48:00.000 2299.670852073 26.4031182 26.4031325 26.4031219 2429-Feb-06 21:36:00.000 2299.678348875 26.4031185 26.4031322 26.4031222 2429-Feb-07 09:24:00.000 2299.685845678 26.4031187 26.4031319 26.4031224 2429-Feb-07 21:12:00.000 2299.693342480 26.4031190 26.4031316 26.4031227 2429-Feb-08 09:00:00.000 2299.700839283 26.4031193 26.4031312 26.4031230 2429-Feb-08 20:48:00.000 2299.708336085 26.4031196 26.4031309 26.4031233 2429-Feb-09 08:36:00.000 2299.715832888 26.4031200 26.4031305 26.4031237 2429-Feb-09 20:24:00.000 2299.723329691 26.4031203 26.4031301 26.4031240 2429-Feb-10 08:12:00.000 2299.730826494 26.4031207 26.4031298 26.4031244 2429-Feb-10 20:00:00.000 2299.738323297 26.4031211 26.4031294 26.4031248 2429-Feb-11 07:48:00.000 2299.745820100 26.4031215 26.4031290 26.4031252 2429-Feb-11 19:36:00.000 2299.753316903 26.4031219 26.4031286 26.4031256 2429-Feb-12 07:24:00.000 2299.760813706 26.4031223 26.4031282 26.4031261 2429-Feb-12 19:12:00.000 2299.768310510 26.4031228 26.4031278 26.4031265 2429-Feb-13 07:00:00.000 2299.775807313 26.4031232 26.4031274 26.4031270 2429-Feb-13 18:48:00.000 2299.783304117 26.4031237 26.4031270 26.4031274 2429-Feb-14 06:36:00.000 2299.790800921 26.4031242 26.4031266 26.4031279 2429-Feb-14 18:24:00.000 2299.798297725 26.4031247 26.4031262 26.4031284 2429-Feb-15 06:12:00.000 2299.805794529 26.4031252 26.4031258 26.4031289 2429-Feb-15 18:00:00.000 2299.813291334 26.4031257 26.4031254 26.4031295 2429-Feb-16 05:48:00.000 2299.820788138 26.4031262 26.4031250 26.4031300 2429-Feb-16 17:36:00.000 2299.828284943 26.4031268 26.4031246 26.4031305 2429-Feb-17 05:24:00.000 2299.835781747 26.4031273 26.4031242 26.4031311 2429-Feb-17 17:12:00.000 2299.843278552 26.4031279 26.4031238 26.4031316 2429-Feb-18 05:00:00.000 2299.850775357 26.4031284 26.4031234 26.4031322 2429-Feb-18 16:48:00.000 2299.858272163 26.4031290 26.4031230 26.4031328 2429-Feb-19 04:36:00.000 2299.865768968 26.4031296 26.4031226 26.4031334 2429-Feb-19 16:24:00.000 2299.873265774 26.4031302 26.4031222 26.4031340 2429-Feb-20 04:12:00.000 2299.880762579 26.4031308 26.4031218 26.4031346 2429-Feb-20 16:00:00.000 2299.888259385 26.4031314 26.4031215 26.4031352 2429-Feb-21 03:48:00.000 2299.895756191 26.4031320 26.4031211 26.4031358 2429-Feb-21 15:36:00.000 2299.903252998 26.4031327 26.4031208 26.4031365 2429-Feb-22 03:24:00.000 2299.910749804 26.4031333 26.4031205 26.4031371 2429-Feb-22 15:12:00.000 2299.918246611 26.4031340 26.4031202 26.4031378 2429-Feb-23 03:00:00.000 2299.925743418 26.4031346 26.4031199 26.4031384 2429-Feb-23 14:48:00.000 2299.933240225 26.4031353 26.4031196 26.4031391 2429-Feb-24 02:36:00.000 2299.940737032 26.4031360 26.4031194 26.4031398 2429-Feb-24 14:24:00.000 2299.948233839 26.4031367 26.4031192 26.4031405 2429-Feb-25 02:12:00.000 2299.955730647 26.4031374 26.4031190 26.4031412 2429-Feb-25 14:00:00.000 2299.963227455 26.4031381 26.4031188 26.4031419 2429-Feb-26 01:48:00.000 2299.970724263 26.4031388 26.4031186 26.4031426 2429-Feb-26 13:36:00.000 2299.978221071 26.4031395 26.4031185 26.4031433 2429-Feb-27 01:24:00.000 2299.985717879 26.4031403 26.4031184 26.4031441 2429-Feb-27 13:12:00.000 2299.993214688 26.4031410 26.4031184 26.4031448 2429-Feb-28 01:00:00.000 2300.000711497 26.4031418 26.4031183 26.4031456 2429-Feb-28 12:48:00.000 2300.008208306 26.4031426 26.4031183 26.4031464 2429-Mar-01 00:36:00.000 2300.015705115 26.4031434 26.4031183 26.4031472 2429-Mar-01 12:24:00.000 2300.023201925 26.4031441 26.4031184 26.4031480 2429-Mar-02 00:12:00.000 2300.030698734 26.4031450 26.4031184 26.4031488 2429-Mar-02 12:00:00.000 2300.038195544 26.4031458 26.4031185 26.4031496 2429-Mar-02 23:48:00.000 2300.045692354 26.4031466 26.4031186 26.4031504 2429-Mar-03 11:36:00.000 2300.053189165 26.4031474 26.4031188 26.4031513 2429-Mar-03 23:24:00.000 2300.060685976 26.4031483 26.4031189 26.4031521 2429-Mar-04 11:12:00.000 2300.068182786 26.4031492 26.4031191 26.4031530 2429-Mar-04 23:00:00.000 2300.075679598 26.4031500 26.4031194 26.4031539 2429-Mar-05 10:48:00.000 2300.083176409 26.4031509 26.4031196 26.4031548 2429-Mar-05 22:36:00.000 2300.090673221 26.4031518 26.4031199 26.4031557 2429-Mar-06 10:24:00.000 2300.098170033 26.4031527 26.4031201 26.4031566 2429-Mar-06 22:12:00.000 2300.105666845 26.4031537 26.4031204 26.4031575 2429-Mar-07 10:00:00.000 2300.113163657 26.4031546 26.4031208 26.4031584 2429-Mar-07 21:48:00.000 2300.120660470 26.4031555 26.4031211 26.4031594 2429-Mar-08 09:36:00.000 2300.128157283 26.4031565 26.4031215 26.4031604 2429-Mar-08 21:24:00.000 2300.135654096 26.4031575 26.4031218 26.4031613 2429-Mar-09 09:12:00.000 2300.143150910 26.4031585 26.4031222 26.4031623 2429-Mar-09 21:00:00.000 2300.150647724 26.4031595 26.4031226 26.4031633 2429-Mar-10 08:48:00.000 2300.158144538 26.4031605 26.4031230 26.4031643 2429-Mar-10 20:36:00.000 2300.165641352 26.4031615 26.4031235 26.4031654 2429-Mar-11 08:24:00.000 2300.173138167 26.4031626 26.4031239 26.4031664 2429-Mar-11 20:12:00.000 2300.180634982 26.4031636 26.4031244 26.4031675 2429-Mar-12 08:00:00.000 2300.188131797 26.4031647 26.4031249 26.4031685 2429-Mar-12 19:48:00.000 2300.195628613 26.4031658 26.4031253 26.4031696 2429-Mar-13 07:36:00.000 2300.203125429 26.4031669 26.4031258 26.4031707 2429-Mar-13 19:24:00.000 2300.210622245 26.4031680 26.4031263 26.4031718 2429-Mar-14 07:12:00.000 2300.218119061 26.4031691 26.4031269 26.4031730 2429-Mar-14 19:00:00.000 2300.225615878 26.4031702 26.4031274 26.4031741 2429-Mar-15 06:48:00.000 2300.233112695 26.4031714 26.4031279 26.4031753 2429-Mar-15 18:36:00.000 2300.240609513 26.4031725 26.4031285 26.4031764 2429-Mar-16 06:24:00.000 2300.248106331 26.4031737 26.4031290 26.4031776 2429-Mar-16 18:12:00.000 2300.255603149 26.4031749 26.4031296 26.4031788 2429-Mar-17 06:00:00.000 2300.263099968 26.4031761 26.4031302 26.4031800 2429-Mar-17 17:48:00.000 2300.270596786 26.4031774 26.4031308 26.4031813 2429-Mar-18 05:36:00.000 2300.278093606 26.4031786 26.4031314 26.4031825 2429-Mar-18 17:24:00.000 2300.285590425 26.4031799 26.4031320 26.4031838 2429-Mar-19 05:12:00.000 2300.293087245 26.4031811 26.4031326 26.4031850 2429-Mar-19 17:00:00.000 2300.300584065 26.4031824 26.4031332 26.4031863 2429-Mar-20 04:48:00.000 2300.308080886 26.4031837 26.4031339 26.4031876 2429-Mar-20 16:36:00.000 2300.315577707 26.4031850 26.4031345 26.4031889 2429-Mar-21 04:24:00.000 2300.323074529 26.4031864 26.4031351 26.4031903 2429-Mar-21 16:12:00.000 2300.330571350 26.4031877 26.4031358 26.4031916 2429-Mar-22 04:00:00.000 2300.338068173 26.4031891 26.4031365 26.4031930 2429-Mar-22 15:48:00.000 2300.345564995 26.4031904 26.4031372 26.4031944 2429-Mar-23 03:36:00.000 2300.353061818 26.4031918 26.4031379 26.4031957 2429-Mar-23 15:24:00.000 2300.360558641 26.4031932 26.4031386 26.4031971 2429-Mar-24 03:12:00.000 2300.368055465 26.4031946 26.4031393 26.4031986 2429-Mar-24 15:00:00.000 2300.375552289 26.4031961 26.4031400 26.4032000 2429-Mar-25 02:48:00.000 2300.383049114 26.4031975 26.4031407 26.4032015 2429-Mar-25 14:36:00.000 2300.390545939 26.4031990 26.4031415 26.4032029 2429-Mar-26 02:24:00.000 2300.398042764 26.4032005 26.4031422 26.4032044 2429-Mar-26 14:12:00.000 2300.405539590 26.4032019 26.4031430 26.4032059 2429-Mar-27 02:00:00.000 2300.413036416 26.4032035 26.4031438 26.4032074 2429-Mar-27 13:48:00.000 2300.420533243 26.4032050 26.4031446 26.4032089 2429-Mar-28 01:36:00.000 2300.428030070 26.4032065 26.4031454 26.4032105 2429-Mar-28 13:24:00.000 2300.435526898 26.4032081 26.4031462 26.4032120 2429-Mar-29 01:12:00.000 2300.443023726 26.4032096 26.4031470 26.4032136 2429-Mar-29 13:00:00.000 2300.450520554 26.4032112 26.4031478 26.4032152 2429-Mar-30 00:48:00.000 2300.458017383 26.4032128 26.4031487 26.4032168 2429-Mar-30 12:36:00.000 2300.465514212 26.4032144 26.4031495 26.4032184 2429-Mar-31 00:24:00.000 2300.473011042 26.4032160 26.4031504 26.4032200 2429-Mar-31 12:12:00.000 2300.480507872 26.4032177 26.4031512 26.4032216 2429-Apr-01 00:00:00.000 2300.488004703 26.4032193 26.4031521 26.4032233 $$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 ********************************************************************************** !$$SOF COMMAND = '1I' START_TIME = '2429-02-01' STOP_TIME = '2429-04-01' STEP_SIZE = '120' QUANTITIES = '19,22' CENTER = '@Sun'