******************************************************************************* Revised: June 21, 2016 Mars 499 / 4 PHYSICAL DATA (updated 2019-Oct-29): Vol. mean radius (km) = 3389.92+-0.04 Density (g/cm^3) = 3.933(5+-4) Mass x10^23 (kg) = 6.4171 Flattening, f = 1/169.779 Volume (x10^10 km^3) = 16.318 Equatorial radius (km)= 3396.19 Sidereal rot. period = 24.622962 hr Sid. rot. rate, rad/s = 0.0000708822 Mean solar day (sol) = 88775.24415 s Polar gravity m/s^2 = 3.758 Core radius (km) = ~1700 Equ. gravity m/s^2 = 3.71 Geometric Albedo = 0.150 GM (km^3/s^2) = 42828.375214 Mass ratio (Sun/Mars) = 3098703.59 GM 1-sigma (km^3/s^2) = +- 0.00028 Mass of atmosphere, kg= ~ 2.5 x 10^16 Mean temperature (K) = 210 Atmos. pressure (bar) = 0.0056 Obliquity to orbit = 25.19 deg Max. angular diam. = 17.9" Mean sidereal orb per = 1.88081578 y Visual mag. V(1,0) = -1.52 Mean sidereal orb per = 686.98 d Orbital speed, km/s = 24.13 Hill's sphere rad. Rp = 319.8 Escape speed, km/s = 5.027 Perihelion Aphelion Mean Solar Constant (W/m^2) 717 493 589 Maximum Planetary IR (W/m^2) 470 315 390 Minimum Planetary IR (W/m^2) 30 30 30 ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 10 18:58:33 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Mars (499) {source: mar097} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2022-Jun-10 00:00:00.0000 UT Stop time : A.D. 2022-Jul-05 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : IAU_MARS {West-longitude positive} Target radii : 3396.19, 3396.19, 3376.2 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.240510.p240803 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-10. PREDICTS-> 2024-AUG-02 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 2022-Jun-10 00:00 1.382271092104 -0.2892334 2022-Jun-10 03:00 1.382250322903 -0.2861244 2022-Jun-10 06:00 1.382229778188 -0.2830146 2022-Jun-10 09:00 1.382209458012 -0.2799041 2022-Jun-10 12:00 1.382189362415 -0.2767931 2022-Jun-10 15:00 1.382169491446 -0.2736814 2022-Jun-10 18:00 1.382149845150 -0.2705692 2022-Jun-10 21:00 1.382130423568 -0.2674562 2022-Jun-11 00:00 1.382111226750 -0.2643427 2022-Jun-11 03:00 1.382092254734 -0.2612286 2022-Jun-11 06:00 1.382073507565 -0.2581139 2022-Jun-11 09:00 1.382054985289 -0.2549986 2022-Jun-11 12:00 1.382036687941 -0.2518827 2022-Jun-11 15:00 1.382018615571 -0.2487663 2022-Jun-11 18:00 1.382000768214 -0.2456493 2022-Jun-11 21:00 1.381983145912 -0.2425317 2022-Jun-12 00:00 1.381965748708 -0.2394136 2022-Jun-12 03:00 1.381948576636 -0.2362949 2022-Jun-12 06:00 1.381931629741 -0.2331757 2022-Jun-12 09:00 1.381914908058 -0.2300560 2022-Jun-12 12:00 1.381898411624 -0.2269357 2022-Jun-12 15:00 1.381882140482 -0.2238149 2022-Jun-12 18:00 1.381866094662 -0.2206936 2022-Jun-12 21:00 1.381850274207 -0.2175718 2022-Jun-13 00:00 1.381834679150 -0.2144496 2022-Jun-13 03:00 1.381819309525 -0.2113267 2022-Jun-13 06:00 1.381804165372 -0.2082035 2022-Jun-13 09:00 1.381789246719 -0.2050798 2022-Jun-13 12:00 1.381774553606 -0.2019555 2022-Jun-13 15:00 1.381760086064 -0.1988309 2022-Jun-13 18:00 1.381745844123 -0.1957058 2022-Jun-13 21:00 1.381731827823 -0.1925802 2022-Jun-14 00:00 1.381718037188 -0.1894542 2022-Jun-14 03:00 1.381704472255 -0.1863277 2022-Jun-14 06:00 1.381691133054 -0.1832009 2022-Jun-14 09:00 1.381678019612 -0.1800736 2022-Jun-14 12:00 1.381665131966 -0.1769459 2022-Jun-14 15:00 1.381652470138 -0.1738178 2022-Jun-14 18:00 1.381640034161 -0.1706893 2022-Jun-14 21:00 1.381627824065 -0.1675604 2022-Jun-15 00:00 1.381615839871 -0.1644311 2022-Jun-15 03:00 1.381604081615 -0.1613014 2022-Jun-15 06:00 1.381592549319 -0.1581715 2022-Jun-15 09:00 1.381581243010 -0.1550410 2022-Jun-15 12:00 1.381570162717 -0.1519103 2022-Jun-15 15:00 1.381559308460 -0.1487792 2022-Jun-15 18:00 1.381548680269 -0.1456477 2022-Jun-15 21:00 1.381538278167 -0.1425160 2022-Jun-16 00:00 1.381528102175 -0.1393839 2022-Jun-16 03:00 1.381518152322 -0.1362515 2022-Jun-16 06:00 1.381508428624 -0.1331188 2022-Jun-16 09:00 1.381498931110 -0.1299857 2022-Jun-16 12:00 1.381489659798 -0.1268524 2022-Jun-16 15:00 1.381480614709 -0.1237188 2022-Jun-16 18:00 1.381471795868 -0.1205848 2022-Jun-16 21:00 1.381463203291 -0.1174507 2022-Jun-17 00:00 1.381454837000 -0.1143161 2022-Jun-17 03:00 1.381446697015 -0.1111815 2022-Jun-17 06:00 1.381438783351 -0.1080465 2022-Jun-17 09:00 1.381431096032 -0.1049112 2022-Jun-17 12:00 1.381423635071 -0.1017758 2022-Jun-17 15:00 1.381416400487 -0.0986400 2022-Jun-17 18:00 1.381409392299 -0.0955041 2022-Jun-17 21:00 1.381402610518 -0.0923679 2022-Jun-18 00:00 1.381396055167 -0.0892315 2022-Jun-18 03:00 1.381389726256 -0.0860949 2022-Jun-18 06:00 1.381383623800 -0.0829581 2022-Jun-18 09:00 1.381377747817 -0.0798211 2022-Jun-18 12:00 1.381372098315 -0.0766840 2022-Jun-18 15:00 1.381366675313 -0.0735465 2022-Jun-18 18:00 1.381361478820 -0.0704091 2022-Jun-18 21:00 1.381356508848 -0.0672713 2022-Jun-19 00:00 1.381351765414 -0.0641335 2022-Jun-19 03:00 1.381347248521 -0.0609955 2022-Jun-19 06:00 1.381342958186 -0.0578573 2022-Jun-19 09:00 1.381338894419 -0.0547191 2022-Jun-19 12:00 1.381335057224 -0.0515806 2022-Jun-19 15:00 1.381331446619 -0.0484421 2022-Jun-19 18:00 1.381328062604 -0.0453035 2022-Jun-19 21:00 1.381324905191 -0.0421646 2022-Jun-20 00:00 1.381321974390 -0.0390258 2022-Jun-20 03:00 1.381319270202 -0.0358868 2022-Jun-20 06:00 1.381316792640 -0.0327477 2022-Jun-20 09:00 1.381314541706 -0.0296087 2022-Jun-20 12:00 1.381312517407 -0.0264694 2022-Jun-20 15:00 1.381310719750 -0.0233301 2022-Jun-20 18:00 1.381309148734 -0.0201908 2022-Jun-20 21:00 1.381307804371 -0.0170514 2022-Jun-21 00:00 1.381306686657 -0.0139120 2022-Jun-21 03:00 1.381305795599 -0.0107725 2022-Jun-21 06:00 1.381305131200 -0.0076330 2022-Jun-21 09:00 1.381304693458 -0.0044935 2022-Jun-21 12:00 1.381304482380 -0.0013539 2022-Jun-21 15:00 1.381304497964 0.0017856 2022-Jun-21 18:00 1.381304740208 0.0049252 2022-Jun-21 21:00 1.381305209119 0.0080648 2022-Jun-22 00:00 1.381305904689 0.0112043 2022-Jun-22 03:00 1.381306826922 0.0143439 2022-Jun-22 06:00 1.381307975815 0.0174833 2022-Jun-22 09:00 1.381309351363 0.0206228 2022-Jun-22 12:00 1.381310953570 0.0237622 2022-Jun-22 15:00 1.381312782425 0.0269016 2022-Jun-22 18:00 1.381314837930 0.0300410 2022-Jun-22 21:00 1.381317120080 0.0331802 2022-Jun-23 00:00 1.381319628867 0.0363194 2022-Jun-23 03:00 1.381322364292 0.0394586 2022-Jun-23 06:00 1.381325326343 0.0425976 2022-Jun-23 09:00 1.381328515018 0.0457366 2022-Jun-23 12:00 1.381331930310 0.0488754 2022-Jun-23 15:00 1.381335572208 0.0520142 2022-Jun-23 18:00 1.381339440710 0.0551528 2022-Jun-23 21:00 1.381343535804 0.0582913 2022-Jun-24 00:00 1.381347857481 0.0614298 2022-Jun-24 03:00 1.381352405736 0.0645680 2022-Jun-24 06:00 1.381357180552 0.0677062 2022-Jun-24 09:00 1.381362181927 0.0708442 2022-Jun-24 12:00 1.381367409846 0.0739820 2022-Jun-24 15:00 1.381372864296 0.0771197 2022-Jun-24 18:00 1.381378545271 0.0802572 2022-Jun-24 21:00 1.381384452751 0.0833945 2022-Jun-25 00:00 1.381390586730 0.0865318 2022-Jun-25 03:00 1.381396947192 0.0896687 2022-Jun-25 06:00 1.381403534120 0.0928055 2022-Jun-25 09:00 1.381410347507 0.0959421 2022-Jun-25 12:00 1.381417387332 0.0990784 2022-Jun-25 15:00 1.381424653582 0.1022146 2022-Jun-25 18:00 1.381432146243 0.1053505 2022-Jun-25 21:00 1.381439865293 0.1084862 2022-Jun-26 00:00 1.381447810723 0.1116217 2022-Jun-26 03:00 1.381455982508 0.1147569 2022-Jun-26 06:00 1.381464380635 0.1178919 2022-Jun-26 09:00 1.381473005085 0.1210266 2022-Jun-26 12:00 1.381481855835 0.1241610 2022-Jun-26 15:00 1.381490932872 0.1272952 2022-Jun-26 18:00 1.381500236171 0.1304291 2022-Jun-26 21:00 1.381509765714 0.1335627 2022-Jun-27 00:00 1.381519521482 0.1366960 2022-Jun-27 03:00 1.381529503447 0.1398290 2022-Jun-27 06:00 1.381539711595 0.1429618 2022-Jun-27 09:00 1.381550145898 0.1460941 2022-Jun-27 12:00 1.381560806334 0.1492262 2022-Jun-27 15:00 1.381571692883 0.1523579 2022-Jun-27 18:00 1.381582805515 0.1554893 2022-Jun-27 21:00 1.381594144212 0.1586204 2022-Jun-28 00:00 1.381605708945 0.1617511 2022-Jun-28 03:00 1.381617499687 0.1648815 2022-Jun-28 06:00 1.381629516419 0.1680115 2022-Jun-28 09:00 1.381641759106 0.1711411 2022-Jun-28 12:00 1.381654227727 0.1742704 2022-Jun-28 15:00 1.381666922253 0.1773992 2022-Jun-28 18:00 1.381679842652 0.1805277 2022-Jun-28 21:00 1.381692988903 0.1836558 2022-Jun-29 00:00 1.381706360969 0.1867834 2022-Jun-29 03:00 1.381719958826 0.1899107 2022-Jun-29 06:00 1.381733782443 0.1930375 2022-Jun-29 09:00 1.381747831786 0.1961639 2022-Jun-29 12:00 1.381762106830 0.1992899 2022-Jun-29 15:00 1.381776607538 0.2024154 2022-Jun-29 18:00 1.381791333880 0.2055405 2022-Jun-29 21:00 1.381806285825 0.2086651 2022-Jun-30 00:00 1.381821463335 0.2117893 2022-Jun-30 03:00 1.381836866383 0.2149130 2022-Jun-30 06:00 1.381852494929 0.2180362 2022-Jun-30 09:00 1.381868348941 0.2211590 2022-Jun-30 12:00 1.381884428386 0.2242812 2022-Jun-30 15:00 1.381900733224 0.2274029 2022-Jun-30 18:00 1.381917263423 0.2305242 2022-Jun-30 21:00 1.381934018944 0.2336449 2022-Jul-01 00:00 1.381950999749 0.2367652 2022-Jul-01 03:00 1.381968205805 0.2398849 2022-Jul-01 06:00 1.381985637067 0.2430040 2022-Jul-01 09:00 1.382003293502 0.2461227 2022-Jul-01 12:00 1.382021175069 0.2492407 2022-Jul-01 15:00 1.382039281726 0.2523582 2022-Jul-01 18:00 1.382057613439 0.2554752 2022-Jul-01 21:00 1.382076170160 0.2585916 2022-Jul-02 00:00 1.382094951853 0.2617075 2022-Jul-02 03:00 1.382113958476 0.2648227 2022-Jul-02 06:00 1.382133189983 0.2679374 2022-Jul-02 09:00 1.382152646336 0.2710514 2022-Jul-02 12:00 1.382172327489 0.2741649 2022-Jul-02 15:00 1.382192233398 0.2772778 2022-Jul-02 18:00 1.382212364022 0.2803900 2022-Jul-02 21:00 1.382232719312 0.2835016 2022-Jul-03 00:00 1.382253299228 0.2866126 2022-Jul-03 03:00 1.382274103719 0.2897229 2022-Jul-03 06:00 1.382295132742 0.2928327 2022-Jul-03 09:00 1.382316386252 0.2959417 2022-Jul-03 12:00 1.382337864197 0.2990501 2022-Jul-03 15:00 1.382359566534 0.3021579 2022-Jul-03 18:00 1.382381493212 0.3052649 2022-Jul-03 21:00 1.382403644182 0.3083714 2022-Jul-04 00:00 1.382426019399 0.3114771 2022-Jul-04 03:00 1.382448618807 0.3145821 2022-Jul-04 06:00 1.382471442361 0.3176865 2022-Jul-04 09:00 1.382494490009 0.3207900 2022-Jul-04 12:00 1.382517761698 0.3238930 2022-Jul-04 15:00 1.382541257381 0.3269952 2022-Jul-04 18:00 1.382564977000 0.3300966 2022-Jul-04 21:00 1.382588920506 0.3331974 2022-Jul-05 00:00 1.382613087846 0.3362973 $$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 = '499' START_TIME = '2022-06-10' STOP_TIME = '2022-07-05' STEP_SIZE = '3 hours' QUANTITIES = '19'