API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 122P/de Vico 2024-May-08 09:26:12 Rec #:90001020 (+COV) Soln.date: 2001-Jul-02_16:09:03 # obs: 294 (1846-1996) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2450280.5 ! 1996-Jul-16.0000000 (TDB) RMSW= n.a. EC= .9627088867609728 QR= .6593373359243724 TP= 2449996.5001733755 OM= 79.62450068849807 W= 12.99609193700053 IN= 85.38275311444475 A= 17.68081665189708 MA= 3.765031967057635 ADIST= 34.70229596786979 PER= 74.34669772868099 N= .013257163 ANGMOM= .019568756 DAN= .66773 DDN= 20.88905 L= 80.6888689 B= 12.9531808 MOID= .31681699 TP= 1995-Oct-06.0001733755 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.5 M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#27, data arc: 1846-03-02 to 1996-06-25 2: k1=10; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Wed May 8 09:26:13 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 122P/de Vico {source: JPL#27} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2069-Oct-12 00:00:00.0000 UT Stop time : A.D. 2069-Oct-16 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.240507.p240731 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-07. PREDICTS-> 2024-JUL-30 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= 2450280.5 ! 1996-Jul-16.0000000 (TDB) RMSW= n.a. EC= .9627088867609728 QR= .6593373359243724 TP= 2449996.5001733755 OM= 79.62450068849807 W= 12.99609193700053 IN= 85.38275311444475 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-7.897756445808566E-01 Y=-3.928366881551797E+00 Z= 6.310765590995773E-01 VX=-2.139734251708513E-03 VY=-1.070379933291187E-02 VZ=-3.164519594973307E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.5 M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2069-Oct-12 00:00 0.660857369311 -2.2746665 2069-Oct-12 03:00 0.660698226134 -2.1339268 2069-Oct-12 06:00 0.660549248812 -1.9930544 2069-Oct-12 09:00 0.660410446594 -1.8520581 2069-Oct-12 12:00 0.660281828103 -1.7109464 2069-Oct-12 15:00 0.660163401335 -1.5697282 2069-Oct-12 18:00 0.660055173657 -1.4284121 2069-Oct-12 21:00 0.659957151804 -1.2870068 2069-Oct-13 00:00 0.659869341879 -1.1455213 2069-Oct-13 03:00 0.659791749348 -1.0039641 2069-Oct-13 06:00 0.659724379043 -0.8623443 2069-Oct-13 09:00 0.659667235158 -0.7206706 2069-Oct-13 12:00 0.659620321246 -0.5789519 2069-Oct-13 15:00 0.659583640224 -0.4371970 2069-Oct-13 18:00 0.659557194366 -0.2954148 2069-Oct-13 21:00 0.659540985305 -0.1536142 2069-Oct-14 00:00 0.659535014033 -0.0118042 2069-Oct-14 03:00 0.659539280899 0.1300066 2069-Oct-14 06:00 0.659553785613 0.2718090 2069-Oct-14 09:00 0.659578527240 0.4135943 2069-Oct-14 12:00 0.659613504204 0.5553536 2069-Oct-14 15:00 0.659658714289 0.6970780 2069-Oct-14 18:00 0.659714154638 0.8387586 2069-Oct-14 21:00 0.659779821754 0.9803865 2069-Oct-15 00:00 0.659855711502 1.1219530 2069-Oct-15 03:00 0.659941819107 1.2634492 2069-Oct-15 06:00 0.660038139159 1.4048663 2069-Oct-15 09:00 0.660144665615 1.5461955 2069-Oct-15 12:00 0.660261391796 1.6874281 2069-Oct-15 15:00 0.660388310393 1.8285553 2069-Oct-15 18:00 0.660525413465 1.9695685 2069-Oct-15 21:00 0.660672692448 2.1104589 2069-Oct-16 00:00 0.660830138150 2.2512179 $$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 *******************************************************************************