******************************************************************************* JPL/HORIZONS 90377 Sedna (2003 VB12) 2024-Apr-25 00:22:44 Rec #: 90377 (+COV) Soln.date: 2024-Apr-16_07:52:35 # obs: 539 (1990-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457983.5 ! 2017-Aug-18.00 (TDB) Residual RMS= .093867 EC= .8438779805311616 QR= 76.0597257185749 TP= 2479559.4597022175 OM= 144.4607791912206 W= 311.5900355154116 IN= 11.92895319676847 A= 487.1812828026878 MA= 358.0224006791369 ADIST= 898.3028398868007 PER= 10753.35774 N= 9.1658E-5 ANGMOM= .203715891 DAN= 89.89116 DDN= 318.85639 L= 96.672585 B= -8.893175100000001 MOID= 75.08709717 TP= 2076-Sep-12.9597022175 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#42, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu Apr 25 00:22:44 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 90377 Sedna (2003 VB12) {source: JPL#42} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2076-Jul-10 00:00:00.0000 UT Stop time : A.D. 2076-Jul-25 00:00:00.0000 UT Step-size : 240 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.240424.p240718 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-24. PREDICTS-> 2024-JUL-17 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= 2457983.5 ! 2017-Aug-18.00 (TDB) Residual RMS= .093867 EC= .8438779805311616 QR= 76.0597257185749 TP= 2479559.4597022175 OM= 144.4607791912206 W= 311.5900355154116 IN= 11.92895319676847 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 4.687788227372414E+01 Y= 7.036772893745980E+01 Z= 1.129538098354908E+01 VX=-2.409714482710369E-03 VY= 5.745274591925052E-04 VZ= 4.400467165865281E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2076-Jul-10 00:00 76.18888409097 -0.0007036 2076-Jul-10 04:00 76.18888402390 -0.0006899 2076-Jul-10 08:00 76.18888395815 -0.0006762 2076-Jul-10 12:00 76.18888389371 -0.0006626 2076-Jul-10 16:00 76.18888383059 -0.0006489 2076-Jul-10 20:00 76.18888376879 -0.0006352 2076-Jul-11 00:00 76.18888370830 -0.0006215 2076-Jul-11 04:00 76.18888364913 -0.0006079 2076-Jul-11 08:00 76.18888359128 -0.0005942 2076-Jul-11 12:00 76.18888353474 -0.0005805 2076-Jul-11 16:00 76.18888347952 -0.0005668 2076-Jul-11 20:00 76.18888342561 -0.0005532 2076-Jul-12 00:00 76.18888337302 -0.0005395 2076-Jul-12 04:00 76.18888332175 -0.0005258 2076-Jul-12 08:00 76.18888327180 -0.0005121 2076-Jul-12 12:00 76.18888322316 -0.0004984 2076-Jul-12 16:00 76.18888317583 -0.0004848 2076-Jul-12 20:00 76.18888312983 -0.0004711 2076-Jul-13 00:00 76.18888308514 -0.0004574 2076-Jul-13 04:00 76.18888304177 -0.0004437 2076-Jul-13 08:00 76.18888299971 -0.0004301 2076-Jul-13 12:00 76.18888295897 -0.0004164 2076-Jul-13 16:00 76.18888291955 -0.0004027 2076-Jul-13 20:00 76.18888288145 -0.0003890 2076-Jul-14 00:00 76.18888284466 -0.0003753 2076-Jul-14 04:00 76.18888280919 -0.0003617 2076-Jul-14 08:00 76.18888277503 -0.0003480 2076-Jul-14 12:00 76.18888274219 -0.0003343 2076-Jul-14 16:00 76.18888271067 -0.0003206 2076-Jul-14 20:00 76.18888268046 -0.0003069 2076-Jul-15 00:00 76.18888265158 -0.0002933 2076-Jul-15 04:00 76.18888262400 -0.0002796 2076-Jul-15 08:00 76.18888259775 -0.0002659 2076-Jul-15 12:00 76.18888257281 -0.0002522 2076-Jul-15 16:00 76.18888254919 -0.0002386 2076-Jul-15 20:00 76.18888252688 -0.0002249 2076-Jul-16 00:00 76.18888250589 -0.0002112 2076-Jul-16 04:00 76.18888248622 -0.0001975 2076-Jul-16 08:00 76.18888246787 -0.0001838 2076-Jul-16 12:00 76.18888245083 -0.0001702 2076-Jul-16 16:00 76.18888243510 -0.0001565 2076-Jul-16 20:00 76.18888242070 -0.0001428 2076-Jul-17 00:00 76.18888240761 -0.0001291 2076-Jul-17 04:00 76.18888239583 -0.0001155 2076-Jul-17 08:00 76.18888238538 -0.0001018 2076-Jul-17 12:00 76.18888237624 -0.0000881 2076-Jul-17 16:00 76.18888236841 -0.0000744 2076-Jul-17 20:00 76.18888236190 -0.0000608 2076-Jul-18 00:00 76.18888235671 -0.0000471 2076-Jul-18 04:00 76.18888235284 -0.0000334 2076-Jul-18 08:00 76.18888235028 -0.0000198 2076-Jul-18 12:00 76.18888234903 -0.0000061 2076-Jul-18 16:00 76.18888234910 0.0000076 2076-Jul-18 20:00 76.18888235049 0.0000213 2076-Jul-19 00:00 76.18888235320 0.0000349 2076-Jul-19 04:00 76.18888235722 0.0000486 2076-Jul-19 08:00 76.18888236255 0.0000623 2076-Jul-19 12:00 76.18888236921 0.0000759 2076-Jul-19 16:00 76.18888237717 0.0000896 2076-Jul-19 20:00 76.18888238646 0.0001033 2076-Jul-20 00:00 76.18888239706 0.0001169 2076-Jul-20 04:00 76.18888240897 0.0001306 2076-Jul-20 08:00 76.18888242220 0.0001443 2076-Jul-20 12:00 76.18888243675 0.0001579 2076-Jul-20 16:00 76.18888245261 0.0001716 2076-Jul-20 20:00 76.18888246978 0.0001853 2076-Jul-21 00:00 76.18888248827 0.0001989 2076-Jul-21 04:00 76.18888250808 0.0002126 2076-Jul-21 08:00 76.18888252920 0.0002263 2076-Jul-21 12:00 76.18888255164 0.0002399 2076-Jul-21 16:00 76.18888257539 0.0002536 2076-Jul-21 20:00 76.18888260046 0.0002672 2076-Jul-22 00:00 76.18888262684 0.0002809 2076-Jul-22 04:00 76.18888265454 0.0002945 2076-Jul-22 08:00 76.18888268355 0.0003082 2076-Jul-22 12:00 76.18888271387 0.0003219 2076-Jul-22 16:00 76.18888274551 0.0003355 2076-Jul-22 20:00 76.18888277847 0.0003492 2076-Jul-23 00:00 76.18888281273 0.0003628 2076-Jul-23 04:00 76.18888284832 0.0003765 2076-Jul-23 08:00 76.18888288522 0.0003901 2076-Jul-23 12:00 76.18888292343 0.0004038 2076-Jul-23 16:00 76.18888296295 0.0004174 2076-Jul-23 20:00 76.18888300379 0.0004311 2076-Jul-24 00:00 76.18888304594 0.0004447 2076-Jul-24 04:00 76.18888308941 0.0004584 2076-Jul-24 08:00 76.18888313419 0.0004720 2076-Jul-24 12:00 76.18888318029 0.0004857 2076-Jul-24 16:00 76.18888322769 0.0004993 2076-Jul-24 20:00 76.18888327641 0.0005130 2076-Jul-25 00:00 76.18888332645 0.0005266 $$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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = 'Sedna' START_TIME = '2076-Jul-10' STOP_TIME = '2076-Jul-25' STEP_SIZE = '4 hours' QUANTITIES = '19'