******************************************************************************* JPL/HORIZONS 3D/Biela 2024-Apr-28 03:31:04 Rec #:90000092 Soln.date: - # obs: 19 (1805-1833) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2380680.5 ! 1805-Dec-25.0000000 (TDB) RMSW= n.a. EC= .745871 QR= .907159 TP= 2380688.8990000002 OM= 254.0783 W= 218.0764 IN= 13.59 A= 3.569679178684841 MA= 358.7725950341175 ADIST= 6.232199357369681 PER= 6.7445345133326 N= .146137036 ANGMOM= .02164857 DAN= 3.83614 DDN= .99788 L= 111.3675952 B= -8.3320831 TP= 1806-Jan-02.3990000002 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.1 M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= SAO/1806 2: k1=10.0;epoch may be 2380681.0 (hour ambiguous: 12h/0h); non-gravs. considered; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sun Apr 28 03:31:04 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 3D/Biela {source: SAO/180620} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1805-Dec-09 21:40:00.0000 UT Stop time : A.D. 1805-Dec-09 22:00:00.0000 UT Step-size : 60 steps ******************************************************************************* 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.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 (>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= 2380680.5 ! 1805-Dec-25.0000000 (TDB) RMSW= n.a. EC= .745871 QR= .907159 TP= 2380688.8990000002 OM= 254.0783 W= 218.0764 IN= 13.59 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.419443544165544E-01 Y= 8.632889836535115E-01 Z= 2.732121468158636E-01 VX=-2.237246982026756E-02 VY=-3.855308248325575E-03 VZ=-6.886444853467455E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.1 M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. ***************************************************************************************************************************** Date__(UT)__HR:MN:SC.fff r rdot delta deldot VmagSn VmagOb S-O-T /r ***************************************************************************************************************************** $$SOE 1805-Dec-09 21:40:00.000 0.977217437439 -9.7908639 0.03661679166049 -0.0196199 39.5864949 14.3302804 77.7165 /T 1805-Dec-09 21:40:20.000 0.977216128487 -9.7907868 0.03661678908711 -0.0188739 39.5865258 14.3302821 77.7145 /T 1805-Dec-09 21:40:40.000 0.977214819544 -9.7907096 0.03661678661348 -0.0181280 39.5865567 14.3302837 77.7124 /T 1805-Dec-09 21:41:00.000 0.977213510613 -9.7906325 0.03661678423958 -0.0173820 39.5865876 14.3302853 77.7104 /T 1805-Dec-09 21:41:20.000 0.977212201691 -9.7905554 0.03661678196543 -0.0166360 39.5866185 14.3302870 77.7083 /T 1805-Dec-09 21:41:40.000 0.977210892780 -9.7904783 0.03661677979101 -0.0158900 39.5866494 14.3302886 77.7063 /T 1805-Dec-09 21:42:00.000 0.977209583879 -9.7904011 0.03661677771634 -0.0151440 39.5866803 14.3302902 77.7042 /T 1805-Dec-09 21:42:20.000 0.977208274988 -9.7903240 0.03661677574141 -0.0143980 39.5867112 14.3302919 77.7022 /T 1805-Dec-09 21:42:40.000 0.977206966108 -9.7902469 0.03661677386621 -0.0136521 39.5867421 14.3302935 77.7002 /T 1805-Dec-09 21:43:00.000 0.977205657237 -9.7901697 0.03661677209076 -0.0129061 39.5867730 14.3302951 77.6981 /T 1805-Dec-09 21:43:20.000 0.977204348378 -9.7900926 0.03661677041505 -0.0121601 39.5868038 14.3302968 77.6961 /T 1805-Dec-09 21:43:40.000 0.977203039528 -9.7900155 0.03661676883908 -0.0114141 39.5868347 14.3302984 77.6940 /T 1805-Dec-09 21:44:00.000 0.977201730689 -9.7899383 0.03661676736285 -0.0106681 39.5868656 14.3303000 77.6920 /T 1805-Dec-09 21:44:20.000 0.977200421860 -9.7898612 0.03661676598636 -0.0099221 39.5868965 14.3303017 77.6899 /T 1805-Dec-09 21:44:40.000 0.977199113042 -9.7897841 0.03661676470961 -0.0091761 39.5869274 14.3303033 77.6879 /T 1805-Dec-09 21:45:00.000 0.977197804234 -9.7897069 0.03661676353260 -0.0084302 39.5869583 14.3303049 77.6859 /T 1805-Dec-09 21:45:20.000 0.977196495436 -9.7896298 0.03661676245533 -0.0076842 39.5869892 14.3303066 77.6838 /T 1805-Dec-09 21:45:40.000 0.977195186648 -9.7895526 0.03661676147781 -0.0069382 39.5870201 14.3303082 77.6818 /T 1805-Dec-09 21:46:00.000 0.977193877871 -9.7894755 0.03661676060002 -0.0061922 39.5870509 14.3303098 77.6797 /T 1805-Dec-09 21:46:20.000 0.977192569104 -9.7893984 0.03661675982198 -0.0054462 39.5870818 14.3303115 77.6777 /T 1805-Dec-09 21:46:40.000 0.977191260348 -9.7893212 0.03661675914367 -0.0047002 39.5871127 14.3303131 77.6756 /T 1805-Dec-09 21:47:00.000 0.977189951601 -9.7892441 0.03661675856511 -0.0039542 39.5871436 14.3303147 77.6736 /T 1805-Dec-09 21:47:20.000 0.977188642865 -9.7891670 0.03661675808629 -0.0032082 39.5871745 14.3303164 77.6715 /T 1805-Dec-09 21:47:40.000 0.977187334140 -9.7890898 0.03661675770721 -0.0024622 39.5872054 14.3303180 77.6695 /T 1805-Dec-09 21:48:00.000 0.977186025424 -9.7890127 0.03661675742788 -0.0017162 39.5872363 14.3303196 77.6675 /T 1805-Dec-09 21:48:20.000 0.977184716719 -9.7889355 0.03661675724828 -0.0009702 39.5872671 14.3303213 77.6654 /T 1805-Dec-09 21:48:40.000 0.977183408025 -9.7888584 0.03661675716843 -0.0002243 39.5872980 14.3303229 77.6634 /T 1805-Dec-09 21:49:00.000 0.977182099340 -9.7887813 0.03661675718831 0.0005217 39.5873289 14.3303245 77.6613 /T 1805-Dec-09 21:49:20.000 0.977180790666 -9.7887041 0.03661675730794 0.0012677 39.5873598 14.3303262 77.6593 /T 1805-Dec-09 21:49:40.000 0.977179482003 -9.7886270 0.03661675752731 0.0020137 39.5873907 14.3303278 77.6572 /T 1805-Dec-09 21:50:00.000 0.977178173349 -9.7885498 0.03661675784642 0.0027597 39.5874216 14.3303294 77.6552 /T 1805-Dec-09 21:50:20.000 0.977176864706 -9.7884727 0.03661675826528 0.0035057 39.5874525 14.3303311 77.6532 /T 1805-Dec-09 21:50:40.000 0.977175556073 -9.7883955 0.03661675878387 0.0042517 39.5874833 14.3303327 77.6511 /T 1805-Dec-09 21:51:00.000 0.977174247451 -9.7883184 0.03661675940221 0.0049977 39.5875142 14.3303344 77.6491 /T 1805-Dec-09 21:51:20.000 0.977172938839 -9.7882412 0.03661676012029 0.0057437 39.5875451 14.3303360 77.6470 /T 1805-Dec-09 21:51:40.000 0.977171630237 -9.7881641 0.03661676093811 0.0064897 39.5875760 14.3303376 77.6450 /T 1805-Dec-09 21:52:00.000 0.977170321645 -9.7880870 0.03661676185568 0.0072357 39.5876069 14.3303393 77.6429 /T 1805-Dec-09 21:52:20.000 0.977169013064 -9.7880098 0.03661676287298 0.0079817 39.5876378 14.3303409 77.6409 /T 1805-Dec-09 21:52:40.000 0.977167704493 -9.7879327 0.03661676399003 0.0087277 39.5876686 14.3303425 77.6389 /T 1805-Dec-09 21:53:00.000 0.977166395933 -9.7878555 0.03661676520682 0.0094737 39.5876995 14.3303442 77.6368 /T 1805-Dec-09 21:53:20.000 0.977165087382 -9.7877784 0.03661676652335 0.0102197 39.5877304 14.3303458 77.6348 /T 1805-Dec-09 21:53:40.000 0.977163778842 -9.7877012 0.03661676793962 0.0109657 39.5877613 14.3303474 77.6327 /T 1805-Dec-09 21:54:00.000 0.977162470313 -9.7876241 0.03661676945564 0.0117117 39.5877922 14.3303491 77.6307 /T 1805-Dec-09 21:54:20.000 0.977161161793 -9.7875469 0.03661677107139 0.0124577 39.5878231 14.3303507 77.6286 /T 1805-Dec-09 21:54:40.000 0.977159853284 -9.7874698 0.03661677278689 0.0132037 39.5878539 14.3303523 77.6266 /T 1805-Dec-09 21:55:00.000 0.977158544786 -9.7873926 0.03661677460214 0.0139497 39.5878848 14.3303540 77.6246 /T 1805-Dec-09 21:55:20.000 0.977157236298 -9.7873155 0.03661677651712 0.0146957 39.5879157 14.3303556 77.6225 /T 1805-Dec-09 21:55:40.000 0.977155927819 -9.7872383 0.03661677853185 0.0154417 39.5879466 14.3303572 77.6205 /T 1805-Dec-09 21:56:00.000 0.977154619352 -9.7871612 0.03661678064632 0.0161877 39.5879775 14.3303589 77.6184 /T 1805-Dec-09 21:56:20.000 0.977153310894 -9.7870840 0.03661678286053 0.0169337 39.5880083 14.3303605 77.6164 /T 1805-Dec-09 21:56:40.000 0.977152002447 -9.7870069 0.03661678517448 0.0176797 39.5880392 14.3303621 77.6144 /T 1805-Dec-09 21:57:00.000 0.977150694011 -9.7869297 0.03661678758818 0.0184257 39.5880701 14.3303638 77.6123 /T 1805-Dec-09 21:57:20.000 0.977149385584 -9.7868526 0.03661679010162 0.0191717 39.5881010 14.3303654 77.6103 /T 1805-Dec-09 21:57:40.000 0.977148077168 -9.7867754 0.03661679271480 0.0199177 39.5881319 14.3303670 77.6082 /T 1805-Dec-09 21:58:00.000 0.977146768762 -9.7866983 0.03661679542772 0.0206637 39.5881628 14.3303687 77.6062 /T 1805-Dec-09 21:58:20.000 0.977145460367 -9.7866211 0.03661679824039 0.0214097 39.5881936 14.3303703 77.6041 /T 1805-Dec-09 21:58:40.000 0.977144151981 -9.7865439 0.03661680115280 0.0221557 39.5882245 14.3303719 77.6021 /T 1805-Dec-09 21:59:00.000 0.977142843607 -9.7864668 0.03661680416495 0.0229017 39.5882554 14.3303736 77.6001 /T 1805-Dec-09 21:59:20.000 0.977141535242 -9.7863896 0.03661680727685 0.0236477 39.5882863 14.3303752 77.5980 /T 1805-Dec-09 21:59:40.000 0.977140226888 -9.7863125 0.03661681048848 0.0243937 39.5883171 14.3303768 77.5960 /T 1805-Dec-09 22:00:00.000 0.977138918544 -9.7862353 0.03661681379986 0.0251397 39.5883480 14.3303785 77.5939 /T $$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 '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 'VmagSn VmagOb' = Magnitude of target centers' velocity with respect to the Sun ("VmagSn") and the observer ("VmagOb") at the time light left the target center to be observed (print time minus down-leg light-time). These are absolute values of the velocity vectors (total speeds) and do NOT indicate direction of motion. Units: KM/S 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES 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 = '90000092' START_TIME = '1805-12-09 21:40' STOP_TIME = '1805-12-09 22:00' STEP_SIZE = '60' QUANTITIES = '19,20,22,23'