******************************************************************************* Revised: September 25, 2025 Uranus 799 PHYSICAL DATA: Mass x10^24 (kg) = 86.813 Density (g/cm^3) = 1.271 Equat. radius (1 bar) = 25559+-4 km Polar radius (km) = 24973+-20 Vol. Mean Radius (km) = 25362+-12 Flattening = 0.02293 Geometric Albedo = 0.51 Sid. rot. period (III)= 17.24+-0.01 h Sid. rot. rate (rad/s) = -0.000101237 Mean solar day, h =~17.24 Rocky core mass (Mc/M) = 0.0012 GM (km^3/s^2) = 5793950.6103 GM 1-sigma (km^3/s^2) = +-4.3 Equ. grav, ge (m/s^2) = 8.87 Pol. grav, gp (m/s^2) = 9.19+-0.02 Visual magnitude V(1,0)= -7.11 Vis. mag. (opposition)= +5.52 Obliquity to orbit = 97.77 deg Sidereal orbit period = 84.0120465 y Sidereal orbit period = 30685.4 d Mean daily motion = 0.01176904 dg/d Mean orbit velocity = 6.8 km/s Atmos. temp. (1 bar) = 76+-2 K Escape speed, km/s = 21.3 Aroche(ice)/Rp = 2.20 Hill's sphere rad., Rp = 2700 Perihelion Aphelion Mean Solar Constant (W/m^2) 4.09 3.39 3.71 Maximum Planetary IR (W/m^2) 0.72 0.55 0.63 Minimum Planetary IR (W/m^2) 0.72 0.55 0.63 ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:47:01 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Uranus (799) {source: ura184_merged} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2050-Aug-01 00:00:00.0000 UT Stop time : A.D. 2050-Aug-30 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : IAU_URANUS {East-longitude positive} Target radii : 25559.0, 25559.0, 24973.0 km {Equator_a, b, pole_c} 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 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.251212.p260310 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-DEC-12. PREDICTS-> 2026-MAR-09 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 ) ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2050-Aug-01 00:00 18.28307460158 -0.0011255 2050-Aug-01 03:00 18.28307451988 -0.0011372 2050-Aug-01 06:00 18.28307443754 -0.0011428 2050-Aug-01 09:00 18.28307435505 -0.0011412 2050-Aug-01 12:00 18.28307427299 -0.0011310 2050-Aug-01 15:00 18.28307419199 -0.0011114 2050-Aug-01 18:00 18.28307411277 -0.0010819 2050-Aug-01 21:00 18.28307403602 -0.0010429 2050-Aug-02 00:00 18.28307396239 -0.0009957 2050-Aug-02 03:00 18.28307389240 -0.0009427 2050-Aug-02 06:00 18.28307382635 -0.0008869 2050-Aug-02 09:00 18.28307376433 -0.0008316 2050-Aug-02 12:00 18.28307370618 -0.0007803 2050-Aug-02 15:00 18.28307365152 -0.0007356 2050-Aug-02 18:00 18.28307359976 -0.0006998 2050-Aug-02 21:00 18.28307355025 -0.0006738 2050-Aug-03 00:00 18.28307350225 -0.0006577 2050-Aug-03 03:00 18.28307345509 -0.0006502 2050-Aug-03 06:00 18.28307340821 -0.0006494 2050-Aug-03 09:00 18.28307336123 -0.0006527 2050-Aug-03 12:00 18.28307331393 -0.0006578 2050-Aug-03 15:00 18.28307326626 -0.0006628 2050-Aug-03 18:00 18.28307321827 -0.0006664 2050-Aug-03 21:00 18.28307317010 -0.0006678 2050-Aug-04 00:00 18.28307312193 -0.0006662 2050-Aug-04 03:00 18.28307307398 -0.0006616 2050-Aug-04 06:00 18.28307302647 -0.0006547 2050-Aug-04 09:00 18.28307297952 -0.0006456 2050-Aug-04 12:00 18.28307293331 -0.0006344 2050-Aug-04 15:00 18.28307288794 -0.0006226 2050-Aug-04 18:00 18.28307284340 -0.0006114 2050-Aug-04 21:00 18.28307279962 -0.0006018 2050-Aug-05 00:00 18.28307275643 -0.0005955 2050-Aug-05 03:00 18.28307271352 -0.0005942 2050-Aug-05 06:00 18.28307267048 -0.0005996 2050-Aug-05 09:00 18.28307262678 -0.0006125 2050-Aug-05 12:00 18.28307258186 -0.0006330 2050-Aug-05 15:00 18.28307253523 -0.0006600 2050-Aug-05 18:00 18.28307248646 -0.0006915 2050-Aug-05 21:00 18.28307243534 -0.0007249 2050-Aug-06 00:00 18.28307238183 -0.0007571 2050-Aug-06 03:00 18.28307232612 -0.0007852 2050-Aug-06 06:00 18.28307226862 -0.0008065 2050-Aug-06 09:00 18.28307220989 -0.0008191 2050-Aug-06 12:00 18.28307215060 -0.0008221 2050-Aug-06 15:00 18.28307209142 -0.0008160 2050-Aug-06 18:00 18.28307203298 -0.0008018 2050-Aug-06 21:00 18.28307197579 -0.0007818 2050-Aug-07 00:00 18.28307192019 -0.0007581 2050-Aug-07 03:00 18.28307186637 -0.0007331 2050-Aug-07 06:00 18.28307181434 -0.0007086 2050-Aug-07 09:00 18.28307176400 -0.0006865 2050-Aug-07 12:00 18.28307171512 -0.0006687 2050-Aug-07 15:00 18.28307166730 -0.0006572 2050-Aug-07 18:00 18.28307162004 -0.0006533 2050-Aug-07 21:00 18.28307157280 -0.0006567 2050-Aug-08 00:00 18.28307152510 -0.0006657 2050-Aug-08 03:00 18.28307147641 -0.0006868 2050-Aug-08 06:00 18.28307142590 -0.0007121 2050-Aug-08 09:00 18.28307137346 -0.0007417 2050-Aug-08 12:00 18.28307131869 -0.0007761 2050-Aug-08 15:00 18.28307126142 -0.0008103 2050-Aug-08 18:00 18.28307120181 -0.0008402 2050-Aug-08 21:00 18.28307114028 -0.0008628 2050-Aug-09 00:00 18.28307107745 -0.0008763 2050-Aug-09 03:00 18.28307101402 -0.0008792 2050-Aug-09 06:00 18.28307095078 -0.0008709 2050-Aug-09 09:00 18.28307088853 -0.0008519 2050-Aug-09 12:00 18.28307082799 -0.0008240 2050-Aug-09 15:00 18.28307076972 -0.0007896 2050-Aug-09 18:00 18.28307071408 -0.0007515 2050-Aug-09 21:00 18.28307066124 -0.0007124 2050-Aug-10 00:00 18.28307061119 -0.0006744 2050-Aug-10 03:00 18.28307056381 -0.0006388 2050-Aug-10 06:00 18.28307051887 -0.0006066 2050-Aug-10 09:00 18.28307047614 -0.0005779 2050-Aug-10 12:00 18.28307043536 -0.0005527 2050-Aug-10 15:00 18.28307039627 -0.0005306 2050-Aug-10 18:00 18.28307035869 -0.0005111 2050-Aug-10 21:00 18.28307032243 -0.0004935 2050-Aug-11 00:00 18.28307028742 -0.0004766 2050-Aug-11 03:00 18.28307025363 -0.0004593 2050-Aug-11 06:00 18.28307022114 -0.0004404 2050-Aug-11 09:00 18.28307019012 -0.0004186 2050-Aug-11 12:00 18.28307016080 -0.0003927 2050-Aug-11 15:00 18.28307013354 -0.0003616 2050-Aug-11 18:00 18.28307010873 -0.0003247 2050-Aug-11 21:00 18.28307008680 -0.0002820 2050-Aug-12 00:00 18.28307006811 -0.0002354 2050-Aug-12 03:00 18.28307005286 -0.0001871 2050-Aug-12 06:00 18.28307004108 -0.0001392 2050-Aug-12 09:00 18.28307003266 -0.0000952 2050-Aug-12 12:00 18.28307002716 -0.0000586 2050-Aug-12 15:00 18.28307002399 -0.0000309 2050-Aug-12 18:00 18.28307002245 -0.0000135 2050-Aug-12 21:00 18.28307002178 -0.0000069 2050-Aug-13 00:00 18.28307002122 -0.0000103 2050-Aug-13 03:00 18.28307002010 -0.0000219 2050-Aug-13 06:00 18.28307001792 -0.0000390 2050-Aug-13 09:00 18.28307001440 -0.0000589 2050-Aug-13 12:00 18.28307000941 -0.0000792 2050-Aug-13 15:00 18.28307000300 -0.0000978 2050-Aug-13 18:00 18.28306999537 -0.0001128 2050-Aug-13 21:00 18.28306998684 -0.0001226 2050-Aug-14 00:00 18.28306997782 -0.0001262 2050-Aug-14 03:00 18.28306996880 -0.0001226 2050-Aug-14 06:00 18.28306996031 -0.0001114 2050-Aug-14 09:00 18.28306995289 -0.0000927 2050-Aug-14 12:00 18.28306994708 -0.0000672 2050-Aug-14 15:00 18.28306994332 -0.0000361 2050-Aug-14 18:00 18.28306994196 -0.0000012 2050-Aug-14 21:00 18.28306994319 0.0000351 2050-Aug-15 00:00 18.28306994700 0.0000699 2050-Aug-15 03:00 18.28306995316 0.0000999 2050-Aug-15 06:00 18.28306996123 0.0001222 2050-Aug-15 09:00 18.28306997056 0.0001346 2050-Aug-15 12:00 18.28306998041 0.0001363 2050-Aug-15 15:00 18.28306999001 0.0001282 2050-Aug-15 18:00 18.28306999872 0.0001118 2050-Aug-15 21:00 18.28307000598 0.0000881 2050-Aug-16 00:00 18.28307001129 0.0000583 2050-Aug-16 03:00 18.28307001444 0.0000314 2050-Aug-16 06:00 18.28307001574 0.0000036 2050-Aug-16 09:00 18.28307001504 -0.0000216 2050-Aug-16 12:00 18.28307001279 -0.0000398 2050-Aug-16 15:00 18.28307000943 -0.0000525 2050-Aug-16 18:00 18.28307000532 -0.0000605 2050-Aug-16 21:00 18.28307000081 -0.0000639 2050-Aug-17 00:00 18.28306999620 -0.0000629 2050-Aug-17 03:00 18.28306999181 -0.0000582 2050-Aug-17 06:00 18.28306998786 -0.0000509 2050-Aug-17 09:00 18.28306998450 -0.0000421 2050-Aug-17 12:00 18.28306998179 -0.0000331 2050-Aug-17 15:00 18.28306997969 -0.0000252 2050-Aug-17 18:00 18.28306997809 -0.0000196 2050-Aug-17 21:00 18.28306997678 -0.0000175 2050-Aug-18 00:00 18.28306997546 -0.0000197 2050-Aug-18 03:00 18.28306997382 -0.0000265 2050-Aug-18 06:00 18.28306997153 -0.0000375 2050-Aug-18 09:00 18.28306996834 -0.0000512 2050-Aug-18 12:00 18.28306996412 -0.0000653 2050-Aug-18 15:00 18.28306995896 -0.0000770 2050-Aug-18 18:00 18.28306995313 -0.0000834 2050-Aug-18 21:00 18.28306994711 -0.0000820 2050-Aug-19 00:00 18.28306994152 -0.0000713 2050-Aug-19 03:00 18.28306993707 -0.0000505 2050-Aug-19 06:00 18.28306993446 -0.0000201 2050-Aug-19 09:00 18.28306993436 0.0000186 2050-Aug-19 12:00 18.28306993730 0.0000635 2050-Aug-19 15:00 18.28306994361 0.0001117 2050-Aug-19 18:00 18.28306995344 0.0001602 2050-Aug-19 21:00 18.28306996668 0.0002061 2050-Aug-20 00:00 18.28306998309 0.0002476 2050-Aug-20 03:00 18.28307000228 0.0002830 2050-Aug-20 06:00 18.28307002376 0.0003102 2050-Aug-20 09:00 18.28307004688 0.0003289 2050-Aug-20 12:00 18.28307007105 0.0003394 2050-Aug-20 15:00 18.28307009567 0.0003410 2050-Aug-20 18:00 18.28307012008 0.0003339 2050-Aug-20 21:00 18.28307014371 0.0003197 2050-Aug-21 00:00 18.28307016610 0.0002999 2050-Aug-21 03:00 18.28307018693 0.0002768 2050-Aug-21 06:00 18.28307020604 0.0002528 2050-Aug-21 09:00 18.28307022348 0.0002308 2050-Aug-21 12:00 18.28307023949 0.0002138 2050-Aug-21 15:00 18.28307025453 0.0002044 2050-Aug-21 18:00 18.28307026922 0.0002042 2050-Aug-21 21:00 18.28307028425 0.0002137 2050-Aug-22 00:00 18.28307030029 0.0002322 2050-Aug-22 03:00 18.28307031795 0.0002579 2050-Aug-22 06:00 18.28307033764 0.0002882 2050-Aug-22 09:00 18.28307035960 0.0003203 2050-Aug-22 12:00 18.28307038385 0.0003514 2050-Aug-22 15:00 18.28307041024 0.0003790 2050-Aug-22 18:00 18.28307043845 0.0004014 2050-Aug-22 21:00 18.28307046804 0.0004174 2050-Aug-23 00:00 18.28307049856 0.0004270 2050-Aug-23 03:00 18.28307052955 0.0004307 2050-Aug-23 06:00 18.28307056064 0.0004298 2050-Aug-23 09:00 18.28307059153 0.0004255 2050-Aug-23 12:00 18.28307062202 0.0004188 2050-Aug-23 15:00 18.28307065196 0.0004104 2050-Aug-23 18:00 18.28307068126 0.0004013 2050-Aug-23 21:00 18.28307070994 0.0003939 2050-Aug-24 00:00 18.28307073826 0.0003914 2050-Aug-24 03:00 18.28307076647 0.0003885 2050-Aug-24 06:00 18.28307079459 0.0003927 2050-Aug-24 09:00 18.28307082330 0.0004031 2050-Aug-24 12:00 18.28307085287 0.0004168 2050-Aug-24 15:00 18.28307088358 0.0004348 2050-Aug-24 18:00 18.28307091573 0.0004564 2050-Aug-24 21:00 18.28307094950 0.0004791 2050-Aug-25 00:00 18.28307098485 0.0004996 2050-Aug-25 03:00 18.28307102152 0.0005153 2050-Aug-25 06:00 18.28307105908 0.0005240 2050-Aug-25 09:00 18.28307109698 0.0005246 2050-Aug-25 12:00 18.28307113463 0.0005170 2050-Aug-25 15:00 18.28307117146 0.0005020 2050-Aug-25 18:00 18.28307120698 0.0004815 2050-Aug-25 21:00 18.28307124090 0.0004579 2050-Aug-26 00:00 18.28307127310 0.0004343 2050-Aug-26 03:00 18.28307130369 0.0004138 2050-Aug-26 06:00 18.28307133297 0.0003987 2050-Aug-26 09:00 18.28307136144 0.0003912 2050-Aug-26 12:00 18.28307138967 0.0003924 2050-Aug-26 15:00 18.28307141831 0.0004028 2050-Aug-26 18:00 18.28307144805 0.0004227 2050-Aug-26 21:00 18.28307147956 0.0004517 2050-Aug-27 00:00 18.28307151349 0.0004895 2050-Aug-27 03:00 18.28307155043 0.0005351 2050-Aug-27 06:00 18.28307159090 0.0005869 2050-Aug-27 09:00 18.28307163527 0.0006429 2050-Aug-27 12:00 18.28307168376 0.0007005 2050-Aug-27 15:00 18.28307173638 0.0007569 2050-Aug-27 18:00 18.28307179295 0.0008094 2050-Aug-27 21:00 18.28307185308 0.0008552 2050-Aug-28 00:00 18.28307191620 0.0008917 2050-Aug-28 03:00 18.28307198159 0.0009180 2050-Aug-28 06:00 18.28307204848 0.0009343 2050-Aug-28 09:00 18.28307211626 0.0009417 2050-Aug-28 12:00 18.28307218426 0.0009411 2050-Aug-28 15:00 18.28307225203 0.0009363 2050-Aug-28 18:00 18.28307231941 0.0009303 2050-Aug-28 21:00 18.28307238639 0.0009257 2050-Aug-29 00:00 18.28307245315 0.0009244 2050-Aug-29 03:00 18.28307251997 0.0009279 2050-Aug-29 06:00 18.28307258725 0.0009369 2050-Aug-29 09:00 18.28307265537 0.0009511 2050-Aug-29 12:00 18.28307272468 0.0009697 2050-Aug-29 15:00 18.28307279545 0.0009913 2050-Aug-29 18:00 18.28307286785 0.0010144 2050-Aug-29 21:00 18.28307294192 0.0010378 2050-Aug-30 00:00 18.28307301766 0.0010603 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '799' QUANTITIES = '19' START_TIME = '2050-08-01' STEP_SIZE = '3 hours' STOP_TIME = '2050-08-30'