******************************************************************************* Revised: July 31, 2013 Sun 10 PHYSICAL PROPERTIES (updated 2024-Mar-04): GM, km^3/s^2 = 132712440041.93938 Mass, 10^24 kg = ~1988500 Vol. mean radius, km = 695700 Volume, 10^12 km^3 = 1412000 Solar radius (IAU2015)= 695700 km Mean density, g/cm^3 = 1.408 Radius (photosphere) = 696500 km Angular diam at 1 AU = 1919.3" Photosphere temp., K = 6600 (bottom) Photosphere temp., K = 4400(top) Photospheric depth = ~500 km Chromospheric depth = ~2500 km Flatness, f = 0.00005 Adopted sid. rot. per.= 25.38 d Surface gravity = 274.0 m/s^2 Escape speed, km/s = 617.7 Pole (RA,DEC), deg. = (286.13, 63.87) Obliquity to ecliptic = 7.25 deg. Solar constant (1 AU) = 1367.6 W/m^2 Luminosity, 10^24 J/s = 382.8 Mass-energy conv rate = 4.260 x 10^9 kg/s Effective temp, K = 5772 Sunspot cycle = 11.4 yr Cycle 24 sunspot min. = 2008 A.D. Motion relative to nearby stars = apex : R.A.= 271 deg.; DEC.= +30 deg. speed: 19.4 km/s (0.0112 au/day) Motion relative to 2.73K BB/CBR = apex : l= 264.7 +- 0.8; b= 48.2 +- 0.5 deg. speed: 369 +-11 km/s ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat Apr 27 10:15:30 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Sun (10) {source: VOYAGER_2_ST+REFIT2022_M} Center body name: Voyager 2 (spacecraft) (-32) {source: VOYAGER_2_ST+REFIT2022_M} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2023-Jul-01 00:00:00.0000 UT Stop time : A.D. 2023-Aug-01 00:00:00.0000 UT Step-size : 1440 minutes ******************************************************************************* Target pole/equ : IAU_SUN {East-longitude positive} Target radii : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Center geodetic : 0.0, 0.0, 0.0 {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 : ICRF Center radii : undefined Target primary : Sun Vis. interferer : None Rel. light bend : Sun {source: VOYAGER_2_ST+REFIT20 Rel. lght bnd GM: 1.3271E+11 km^3/s^2 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 ) ******************************************************************************* Date__(UT)__HR:MN delta deldot *************************************************** $$SOE 2023-Jul-01 00:00 133.768156270484 15.0300750 2023-Jul-02 00:00 133.776836866625 15.0300789 2023-Jul-03 00:00 133.785517465019 15.0300828 2023-Jul-04 00:00 133.794198065659 15.0300867 2023-Jul-05 00:00 133.802878668531 15.0300905 2023-Jul-06 00:00 133.811559273619 15.0300943 2023-Jul-07 00:00 133.820239880900 15.0300981 2023-Jul-08 00:00 133.828920490351 15.0301018 2023-Jul-09 00:00 133.837601101944 15.0301055 2023-Jul-10 00:00 133.846281715651 15.0301092 2023-Jul-11 00:00 133.854962331444 15.0301128 2023-Jul-12 00:00 133.863642949295 15.0301163 2023-Jul-13 00:00 133.872323569176 15.0301198 2023-Jul-14 00:00 133.881004191060 15.0301232 2023-Jul-15 00:00 133.889684814924 15.0301266 2023-Jul-16 00:00 133.898365440743 15.0301300 2023-Jul-17 00:00 133.907046068498 15.0301333 2023-Jul-18 00:00 133.915726698169 15.0301366 2023-Jul-19 00:00 133.924407329740 15.0301399 2023-Jul-20 00:00 133.933087963196 15.0301432 2023-Jul-21 00:00 133.941768598526 15.0301464 2023-Jul-22 00:00 133.950449235719 15.0301496 2023-Jul-23 00:00 133.959129874768 15.0301528 2023-Jul-24 00:00 133.967810515667 15.0301560 2023-Jul-25 00:00 133.976491158411 15.0301592 2023-Jul-26 00:00 133.985171803001 15.0301624 2023-Jul-27 00:00 133.993852449434 15.0301656 2023-Jul-28 00:00 134.002533097715 15.0301688 2023-Jul-29 00:00 134.011213747845 15.0301720 2023-Jul-30 00:00 134.019894399832 15.0301752 2023-Jul-31 00:00 134.028575053681 15.0301785 2023-Aug-01 00:00 134.037255709401 15.0301817 $$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. 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. 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 = 'Sun' START_TIME = '2023-07-01' STOP_TIME = '2023-08-01' STEP_SIZE = '1 day' QUANTITIES = '20' CENTER = '500@-32'