******************************************************************************* JPL/HORIZONS 1I/'Oumuamua (A/2017 U1) 2024-Apr-27 02:54:06 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 / WWW_USER Sat Apr 27 02:54:06 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. 1606-Feb-01 00:00:00.0000 UT Stop time : A.D. 1606-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 1606-Feb-01 00:00:00.000 2300.613781165 -26.4119800 26.4117718 26.4119831 1606-Feb-01 11:48:00.000 2300.606276350 -26.4099917 26.4097816 26.4099922 1606-Feb-01 23:36:00.000 2300.598776293 -26.4100183 26.4098089 26.4100188 1606-Feb-02 11:24:00.000 2300.591276205 -26.4100148 26.4098060 26.4100153 1606-Feb-02 23:12:00.000 2300.583776124 -26.4100184 26.4098102 26.4100189 1606-Feb-03 11:00:00.000 2300.576276041 -26.4100229 26.4098153 26.4100234 1606-Feb-03 22:48:00.000 2300.568775957 -26.4100257 26.4098187 26.4100262 1606-Feb-04 10:36:00.000 2300.561275872 -26.4100293 26.4098229 26.4100298 1606-Feb-04 22:24:00.000 2300.553775786 -26.4100327 26.4098269 26.4100331 1606-Feb-05 10:12:00.000 2300.546275699 -26.4100364 26.4098312 26.4100369 1606-Feb-05 22:00:00.000 2300.538775611 -26.4100400 26.4098353 26.4100405 1606-Feb-06 09:48:00.000 2300.531275522 -26.4100436 26.4098395 26.4100440 1606-Feb-06 21:36:00.000 2300.523775432 -26.4100471 26.4098436 26.4100476 1606-Feb-07 09:24:00.000 2300.516275341 -26.4100507 26.4098477 26.4100512 1606-Feb-07 21:12:00.000 2300.508775249 -26.4100543 26.4098519 26.4100547 1606-Feb-08 09:00:00.000 2300.501275156 -26.4100578 26.4098560 26.4100583 1606-Feb-08 20:48:00.000 2300.493775061 -26.4100615 26.4098601 26.4100620 1606-Feb-09 08:36:00.000 2300.486274966 -26.4100650 26.4098642 26.4100655 1606-Feb-09 20:24:00.000 2300.478774870 -26.4100686 26.4098682 26.4100691 1606-Feb-10 08:12:00.000 2300.471274773 -26.4100723 26.4098724 26.4100728 1606-Feb-10 20:00:00.000 2300.463774675 -26.4100758 26.4098764 26.4100763 1606-Feb-11 07:48:00.000 2300.456274576 -26.4100794 26.4098804 26.4100799 1606-Feb-11 19:36:00.000 2300.448774476 -26.4100830 26.4098844 26.4100835 1606-Feb-12 07:24:00.000 2300.441274374 -26.4100867 26.4098885 26.4100871 1606-Feb-12 19:12:00.000 2300.433774272 -26.4100903 26.4098925 26.4100908 1606-Feb-13 07:00:00.000 2300.426274169 -26.4100939 26.4098965 26.4100944 1606-Feb-13 18:48:00.000 2300.418774064 -26.4100975 26.4099005 26.4100980 1606-Feb-14 06:36:00.000 2300.411273959 -26.4101011 26.4099044 26.4101016 1606-Feb-14 18:24:00.000 2300.403773853 -26.4101048 26.4099084 26.4101053 1606-Feb-15 06:12:00.000 2300.396273745 -26.4101085 26.4099124 26.4101090 1606-Feb-15 18:00:00.000 2300.388773637 -26.4101121 26.4099163 26.4101126 1606-Feb-16 05:48:00.000 2300.381273527 -26.4101158 26.4099202 26.4101163 1606-Feb-16 17:36:00.000 2300.373773417 -26.4101195 26.4099241 26.4101199 1606-Feb-17 05:24:00.000 2300.366273305 -26.4101232 26.4099281 26.4101236 1606-Feb-17 17:12:00.000 2300.358773192 -26.4101269 26.4099320 26.4101273 1606-Feb-18 05:00:00.000 2300.351273079 -26.4101305 26.4099358 26.4101310 1606-Feb-18 16:48:00.000 2300.343772964 -26.4101343 26.4099397 26.4101347 1606-Feb-19 04:36:00.000 2300.336272848 -26.4101380 26.4099435 26.4101385 1606-Feb-19 16:24:00.000 2300.328772731 -26.4101417 26.4099474 26.4101422 1606-Feb-20 04:12:00.000 2300.321272613 -26.4101454 26.4099512 26.4101459 1606-Feb-20 16:00:00.000 2300.313772494 -26.4101492 26.4099550 26.4101497 1606-Feb-21 03:48:00.000 2300.306272374 -26.4101529 26.4099588 26.4101534 1606-Feb-21 15:36:00.000 2300.298772253 -26.4101567 26.4099626 26.4101572 1606-Feb-22 03:24:00.000 2300.291272131 -26.4101605 26.4099664 26.4101609 1606-Feb-22 15:12:00.000 2300.283772008 -26.4101642 26.4099701 26.4101647 1606-Feb-23 03:00:00.000 2300.276271883 -26.4101680 26.4099739 26.4101685 1606-Feb-23 14:48:00.000 2300.268771758 -26.4101718 26.4099776 26.4101723 1606-Feb-24 02:36:00.000 2300.261271631 -26.4101756 26.4099813 26.4101761 1606-Feb-24 14:24:00.000 2300.253771504 -26.4101794 26.4099850 26.4101799 1606-Feb-25 02:12:00.000 2300.246271375 -26.4101832 26.4099887 26.4101837 1606-Feb-25 14:00:00.000 2300.238771245 -26.4101870 26.4099924 26.4101875 1606-Feb-26 01:48:00.000 2300.231271115 -26.4101908 26.4099961 26.4101913 1606-Feb-26 13:36:00.000 2300.223770983 -26.4101946 26.4099997 26.4101951 1606-Feb-27 01:24:00.000 2300.216270850 -26.4101985 26.4100034 26.4101990 1606-Feb-27 13:12:00.000 2300.208770716 -26.4102023 26.4100070 26.4102028 1606-Feb-28 01:00:00.000 2300.201270581 -26.4102062 26.4100106 26.4102067 1606-Feb-28 12:48:00.000 2300.193770444 -26.4102100 26.4100142 26.4102105 1606-Mar-01 00:36:00.000 2300.186270307 -26.4102139 26.4100178 26.4102144 1606-Mar-01 12:24:00.000 2300.178770169 -26.4102178 26.4100214 26.4102183 1606-Mar-02 00:12:00.000 2300.171270029 -26.4102216 26.4100250 26.4102221 1606-Mar-02 12:00:00.000 2300.163769888 -26.4102255 26.4100286 26.4102260 1606-Mar-02 23:48:00.000 2300.156269747 -26.4102294 26.4100322 26.4102299 1606-Mar-03 11:36:00.000 2300.148769604 -26.4102333 26.4100358 26.4102338 1606-Mar-03 23:24:00.000 2300.141269460 -26.4102372 26.4100394 26.4102377 1606-Mar-04 11:12:00.000 2300.133769315 -26.4102411 26.4100429 26.4102416 1606-Mar-04 23:00:00.000 2300.126269168 -26.4102451 26.4100465 26.4102456 1606-Mar-05 10:48:00.000 2300.118769021 -26.4102490 26.4100501 26.4102495 1606-Mar-05 22:36:00.000 2300.111268873 -26.4102529 26.4100536 26.4102534 1606-Mar-06 10:24:00.000 2300.103768723 -26.4102569 26.4100572 26.4102574 1606-Mar-06 22:12:00.000 2300.096268573 -26.4102608 26.4100608 26.4102613 1606-Mar-07 10:00:00.000 2300.088768421 -26.4102648 26.4100644 26.4102653 1606-Mar-07 21:48:00.000 2300.081268268 -26.4102687 26.4100679 26.4102693 1606-Mar-08 09:36:00.000 2300.073768114 -26.4102727 26.4100715 26.4102732 1606-Mar-08 21:24:00.000 2300.066267959 -26.4102767 26.4100751 26.4102772 1606-Mar-09 09:12:00.000 2300.058767802 -26.4102807 26.4100787 26.4102812 1606-Mar-09 21:00:00.000 2300.051267645 -26.4102847 26.4100823 26.4102852 1606-Mar-10 08:48:00.000 2300.043767486 -26.4102887 26.4100859 26.4102892 1606-Mar-10 20:36:00.000 2300.036267327 -26.4102927 26.4100895 26.4102932 1606-Mar-11 08:24:00.000 2300.028767166 -26.4102967 26.4100932 26.4102972 1606-Mar-11 20:12:00.000 2300.021267004 -26.4103008 26.4100968 26.4103013 1606-Mar-12 08:00:00.000 2300.013766841 -26.4103048 26.4101004 26.4103053 1606-Mar-12 19:48:00.000 2300.006266676 -26.4103088 26.4101041 26.4103093 1606-Mar-13 07:36:00.000 2299.998766511 -26.4103129 26.4101077 26.4103134 1606-Mar-13 19:24:00.000 2299.991266344 -26.4103170 26.4101114 26.4103175 1606-Mar-14 07:12:00.000 2299.983766177 -26.4103210 26.4101151 26.4103215 1606-Mar-14 19:00:00.000 2299.976266008 -26.4103251 26.4101187 26.4103256 1606-Mar-15 06:48:00.000 2299.968765838 -26.4103292 26.4101224 26.4103297 1606-Mar-15 18:36:00.000 2299.961265666 -26.4103333 26.4101261 26.4103338 1606-Mar-16 06:24:00.000 2299.953765494 -26.4103374 26.4101298 26.4103379 1606-Mar-16 18:12:00.000 2299.946265320 -26.4103415 26.4101335 26.4103420 1606-Mar-17 06:00:00.000 2299.938765146 -26.4103456 26.4101372 26.4103461 1606-Mar-17 17:48:00.000 2299.931264970 -26.4103498 26.4101409 26.4103503 1606-Mar-18 05:36:00.000 2299.923764793 -26.4103539 26.4101447 26.4103544 1606-Mar-18 17:24:00.000 2299.916264614 -26.4103580 26.4101484 26.4103586 1606-Mar-19 05:12:00.000 2299.908764435 -26.4103622 26.4101521 26.4103627 1606-Mar-19 17:00:00.000 2299.901264254 -26.4103664 26.4101559 26.4103669 1606-Mar-20 04:48:00.000 2299.893764073 -26.4103705 26.4101596 26.4103711 1606-Mar-20 16:36:00.000 2299.886263890 -26.4103747 26.4101634 26.4103753 1606-Mar-21 04:24:00.000 2299.878763705 -26.4103789 26.4101672 26.4103795 1606-Mar-21 16:12:00.000 2299.871263520 -26.4103831 26.4101710 26.4103837 1606-Mar-22 04:00:00.000 2299.863763334 -26.4103873 26.4101747 26.4103879 1606-Mar-22 15:48:00.000 2299.856263146 -26.4103916 26.4101785 26.4103921 1606-Mar-23 03:36:00.000 2299.848762957 -26.4103958 26.4101823 26.4103963 1606-Mar-23 15:24:00.000 2299.841262767 -26.4104000 26.4101861 26.4104006 1606-Mar-24 03:12:00.000 2299.833762575 -26.4104043 26.4101900 26.4104048 1606-Mar-24 15:00:00.000 2299.826262383 -26.4104085 26.4101938 26.4104091 1606-Mar-25 02:48:00.000 2299.818762189 -26.4104128 26.4101976 26.4104133 1606-Mar-25 14:36:00.000 2299.811261994 -26.4104171 26.4102014 26.4104176 1606-Mar-26 02:24:00.000 2299.803761798 -26.4104214 26.4102053 26.4104219 1606-Mar-26 14:12:00.000 2299.796261600 -26.4104257 26.4102091 26.4104262 1606-Mar-27 02:00:00.000 2299.788761402 -26.4104300 26.4102130 26.4104305 1606-Mar-27 13:48:00.000 2299.781261202 -26.4104343 26.4102169 26.4104348 1606-Mar-28 01:36:00.000 2299.773761001 -26.4104386 26.4102207 26.4104392 1606-Mar-28 13:24:00.000 2299.766260798 -26.4104430 26.4102246 26.4104435 1606-Mar-29 01:12:00.000 2299.758760595 -26.4104473 26.4102285 26.4104479 1606-Mar-29 13:00:00.000 2299.751260390 -26.4104517 26.4102324 26.4104522 1606-Mar-30 00:48:00.000 2299.743760184 -26.4104560 26.4102363 26.4104566 1606-Mar-30 12:36:00.000 2299.736259977 -26.4104604 26.4102402 26.4104610 1606-Mar-31 00:24:00.000 2299.728759768 -26.4104648 26.4102441 26.4104653 1606-Mar-31 12:12:00.000 2299.721259558 -26.4104692 26.4102480 26.4104697 1606-Apr-01 00:00:00.000 2299.713759347 -26.4104736 26.4102520 26.4104741 $$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 = '1606-02-01' STOP_TIME = '1606-04-01' STEP_SIZE = '120' QUANTITIES = '19,22' CENTER = '@Sun'