******************************************************************************* JPL/HORIZONS 141P-A/Machholz 2 2024-Apr-26 10:10:31 Rec #:90001064 (+COV) Soln.date: 2021-Aug-25_08:02:38 # obs: 411 (1994-2000) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2450594.5 ! 1997-May-26.0000000 (TDB) RMSW= n.a. EC= .7504734077906811 QR= .751174367939751 TP= 2451522.1030955403 OM= 246.1551562177739 W= 149.244253309364 IN= 12.79337930969478 A= 3.010398055328779 MA= 184.9627925251248 ADIST= 5.269621742717807 PER= 5.2232894062318 N= .188698387 ANGMOM= .019725571 DAN= 3.70317 DDN= .79938 L= 36.0285386 B= 6.501988 MOID= .105828 TP= 1999-Dec-09.6030955403 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12. M2= n.a. k1= 30. k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 27.41522 A1= 2.065306454897E-9 A2= -1.308609247208E-9 A3= 1.529188007116E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#79, data arc: 1994-08-15 to 2000-02-11 2: k1=30.0; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Apr 26 10:10:31 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 141P-A/Machholz 2 {source: JPL#79} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2363-Mar-01 00:00:00.0000 UT Stop time : A.D. 2363-Mar-30 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.240425.p240719 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-25. PREDICTS-> 2024-JUL-18 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= 2450594.5 ! 1997-May-26.0000000 (TDB) RMSW= n.a. EC= .7504734077906811 QR= .751174367939751 TP= 2451522.1030955403 OM= 246.1551562177739 W= 149.244253309364 IN= 12.79337930969478 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-4.176202510151455E+00 Y=-2.666579957325836E+00 Z=-1.785623392594791E+00 VX= 2.319123550890129E-03 VY=-2.913374189027548E-03 VZ=-4.526673925811125E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12. M2= n.a. k1= 30. k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 27.41522 A1= 2.065306454897E-9 A2= -1.308609247208E-9 A3= 1.529188007116E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2363-Mar-01 00:00 3.540140790393 -9.9762033 2363-Mar-01 03:00 3.539420387203 -9.9791012 2363-Mar-01 06:00 3.538699774706 -9.9819999 2363-Mar-01 09:00 3.537978952847 -9.9848993 2363-Mar-01 12:00 3.537257921573 -9.9877995 2363-Mar-01 15:00 3.536536680829 -9.9907004 2363-Mar-01 18:00 3.535815230563 -9.9936021 2363-Mar-01 21:00 3.535093570720 -9.9965045 2363-Mar-02 00:00 3.534371701246 -9.9994077 2363-Mar-02 03:00 3.533649622087 -10.0023116 2363-Mar-02 06:00 3.532927333189 -10.0052163 2363-Mar-02 09:00 3.532204834499 -10.0081217 2363-Mar-02 12:00 3.531482125962 -10.0110278 2363-Mar-02 15:00 3.530759207524 -10.0139348 2363-Mar-02 18:00 3.530036079131 -10.0168424 2363-Mar-02 21:00 3.529312740729 -10.0197509 2363-Mar-03 00:00 3.528589192264 -10.0226600 2363-Mar-03 03:00 3.527865433681 -10.0255699 2363-Mar-03 06:00 3.527141464927 -10.0284806 2363-Mar-03 09:00 3.526417285946 -10.0313921 2363-Mar-03 12:00 3.525692896686 -10.0343042 2363-Mar-03 15:00 3.524968297092 -10.0372172 2363-Mar-03 18:00 3.524243487108 -10.0401309 2363-Mar-03 21:00 3.523518466682 -10.0430453 2363-Mar-04 00:00 3.522793235759 -10.0459605 2363-Mar-04 03:00 3.522067794284 -10.0488765 2363-Mar-04 06:00 3.521342142202 -10.0517932 2363-Mar-04 09:00 3.520616279460 -10.0547106 2363-Mar-04 12:00 3.519890206003 -10.0576289 2363-Mar-04 15:00 3.519163921777 -10.0605478 2363-Mar-04 18:00 3.518437426727 -10.0634676 2363-Mar-04 21:00 3.517710720798 -10.0663881 2363-Mar-05 00:00 3.516983803935 -10.0693093 2363-Mar-05 03:00 3.516256676085 -10.0722313 2363-Mar-05 06:00 3.515529337193 -10.0751541 2363-Mar-05 09:00 3.514801787204 -10.0780776 2363-Mar-05 12:00 3.514074026063 -10.0810019 2363-Mar-05 15:00 3.513346053715 -10.0839270 2363-Mar-05 18:00 3.512617870106 -10.0868528 2363-Mar-05 21:00 3.511889475182 -10.0897793 2363-Mar-06 00:00 3.511160868886 -10.0927067 2363-Mar-06 03:00 3.510432051165 -10.0956348 2363-Mar-06 06:00 3.509703021964 -10.0985636 2363-Mar-06 09:00 3.508973781228 -10.1014932 2363-Mar-06 12:00 3.508244328901 -10.1044236 2363-Mar-06 15:00 3.507514664930 -10.1073547 2363-Mar-06 18:00 3.506784789258 -10.1102866 2363-Mar-06 21:00 3.506054701832 -10.1132193 2363-Mar-07 00:00 3.505324402595 -10.1161527 2363-Mar-07 03:00 3.504593891494 -10.1190869 2363-Mar-07 06:00 3.503863168472 -10.1220219 2363-Mar-07 09:00 3.503132233476 -10.1249576 2363-Mar-07 12:00 3.502401086449 -10.1278941 2363-Mar-07 15:00 3.501669727336 -10.1308314 2363-Mar-07 18:00 3.500938156083 -10.1337694 2363-Mar-07 21:00 3.500206372635 -10.1367082 2363-Mar-08 00:00 3.499474376935 -10.1396477 2363-Mar-08 03:00 3.498742168930 -10.1425881 2363-Mar-08 06:00 3.498009748562 -10.1455291 2363-Mar-08 09:00 3.497277115779 -10.1484710 2363-Mar-08 12:00 3.496544270523 -10.1514136 2363-Mar-08 15:00 3.495811212739 -10.1543570 2363-Mar-08 18:00 3.495077942373 -10.1573012 2363-Mar-08 21:00 3.494344459368 -10.1602461 2363-Mar-09 00:00 3.493610763670 -10.1631918 2363-Mar-09 03:00 3.492876855222 -10.1661383 2363-Mar-09 06:00 3.492142733970 -10.1690856 2363-Mar-09 09:00 3.491408399858 -10.1720336 2363-Mar-09 12:00 3.490673852830 -10.1749824 2363-Mar-09 15:00 3.489939092831 -10.1779319 2363-Mar-09 18:00 3.489204119805 -10.1808823 2363-Mar-09 21:00 3.488468933697 -10.1838334 2363-Mar-10 00:00 3.487733534450 -10.1867853 2363-Mar-10 03:00 3.486997922010 -10.1897379 2363-Mar-10 06:00 3.486262096320 -10.1926914 2363-Mar-10 09:00 3.485526057325 -10.1956456 2363-Mar-10 12:00 3.484789804968 -10.1986006 2363-Mar-10 15:00 3.484053339195 -10.2015563 2363-Mar-10 18:00 3.483316659950 -10.2045128 2363-Mar-10 21:00 3.482579767175 -10.2074701 2363-Mar-11 00:00 3.481842660817 -10.2104282 2363-Mar-11 03:00 3.481105340818 -10.2133871 2363-Mar-11 06:00 3.480367807123 -10.2163467 2363-Mar-11 09:00 3.479630059676 -10.2193071 2363-Mar-11 12:00 3.478892098421 -10.2222683 2363-Mar-11 15:00 3.478153923302 -10.2252303 2363-Mar-11 18:00 3.477415534263 -10.2281931 2363-Mar-11 21:00 3.476676931247 -10.2311566 2363-Mar-12 00:00 3.475938114199 -10.2341209 2363-Mar-12 03:00 3.475199083063 -10.2370860 2363-Mar-12 06:00 3.474459837782 -10.2400519 2363-Mar-12 09:00 3.473720378301 -10.2430185 2363-Mar-12 12:00 3.472980704562 -10.2459859 2363-Mar-12 15:00 3.472240816510 -10.2489542 2363-Mar-12 18:00 3.471500714089 -10.2519231 2363-Mar-12 21:00 3.470760397243 -10.2548929 2363-Mar-13 00:00 3.470019865914 -10.2578635 2363-Mar-13 03:00 3.469279120047 -10.2608348 2363-Mar-13 06:00 3.468538159585 -10.2638069 2363-Mar-13 09:00 3.467796984472 -10.2667799 2363-Mar-13 12:00 3.467055594651 -10.2697536 2363-Mar-13 15:00 3.466313990067 -10.2727280 2363-Mar-13 18:00 3.465572170662 -10.2757033 2363-Mar-13 21:00 3.464830136380 -10.2786793 2363-Mar-14 00:00 3.464087887165 -10.2816562 2363-Mar-14 03:00 3.463345422960 -10.2846338 2363-Mar-14 06:00 3.462602743708 -10.2876122 2363-Mar-14 09:00 3.461859849353 -10.2905914 2363-Mar-14 12:00 3.461116739838 -10.2935714 2363-Mar-14 15:00 3.460373415106 -10.2965522 2363-Mar-14 18:00 3.459629875102 -10.2995337 2363-Mar-14 21:00 3.458886119767 -10.3025161 2363-Mar-15 00:00 3.458142149046 -10.3054992 2363-Mar-15 03:00 3.457397962881 -10.3084831 2363-Mar-15 06:00 3.456653561216 -10.3114678 2363-Mar-15 09:00 3.455908943994 -10.3144533 2363-Mar-15 12:00 3.455164111158 -10.3174396 2363-Mar-15 15:00 3.454419062651 -10.3204267 2363-Mar-15 18:00 3.453673798417 -10.3234146 2363-Mar-15 21:00 3.452928318397 -10.3264033 2363-Mar-16 00:00 3.452182622536 -10.3293927 2363-Mar-16 03:00 3.451436710777 -10.3323830 2363-Mar-16 06:00 3.450690583061 -10.3353740 2363-Mar-16 09:00 3.449944239333 -10.3383659 2363-Mar-16 12:00 3.449197679535 -10.3413585 2363-Mar-16 15:00 3.448450903611 -10.3443519 2363-Mar-16 18:00 3.447703911502 -10.3473461 2363-Mar-16 21:00 3.446956703152 -10.3503412 2363-Mar-17 00:00 3.446209278504 -10.3533370 2363-Mar-17 03:00 3.445461637499 -10.3563336 2363-Mar-17 06:00 3.444713780082 -10.3593310 2363-Mar-17 09:00 3.443965706195 -10.3623292 2363-Mar-17 12:00 3.443217415781 -10.3653282 2363-Mar-17 15:00 3.442468908782 -10.3683280 2363-Mar-17 18:00 3.441720185140 -10.3713286 2363-Mar-17 21:00 3.440971244799 -10.3743299 2363-Mar-18 00:00 3.440222087702 -10.3773321 2363-Mar-18 03:00 3.439472713789 -10.3803351 2363-Mar-18 06:00 3.438723123005 -10.3833389 2363-Mar-18 09:00 3.437973315292 -10.3863435 2363-Mar-18 12:00 3.437223290592 -10.3893489 2363-Mar-18 15:00 3.436473048847 -10.3923551 2363-Mar-18 18:00 3.435722590000 -10.3953620 2363-Mar-18 21:00 3.434971913994 -10.3983698 2363-Mar-19 00:00 3.434221020771 -10.4013784 2363-Mar-19 03:00 3.433469910272 -10.4043878 2363-Mar-19 06:00 3.432718582441 -10.4073980 2363-Mar-19 09:00 3.431967037220 -10.4104090 2363-Mar-19 12:00 3.431215274550 -10.4134208 2363-Mar-19 15:00 3.430463294375 -10.4164334 2363-Mar-19 18:00 3.429711096636 -10.4194468 2363-Mar-19 21:00 3.428958681276 -10.4224610 2363-Mar-20 00:00 3.428206048236 -10.4254760 2363-Mar-20 03:00 3.427453197459 -10.4284918 2363-Mar-20 06:00 3.426700128887 -10.4315085 2363-Mar-20 09:00 3.425946842462 -10.4345259 2363-Mar-20 12:00 3.425193338125 -10.4375441 2363-Mar-20 15:00 3.424439615820 -10.4405632 2363-Mar-20 18:00 3.423685675487 -10.4435830 2363-Mar-20 21:00 3.422931517069 -10.4466037 2363-Mar-21 00:00 3.422177140508 -10.4496251 2363-Mar-21 03:00 3.421422545745 -10.4526474 2363-Mar-21 06:00 3.420667732723 -10.4556705 2363-Mar-21 09:00 3.419912701383 -10.4586944 2363-Mar-21 12:00 3.419157451668 -10.4617191 2363-Mar-21 15:00 3.418401983517 -10.4647446 2363-Mar-21 18:00 3.417646296875 -10.4677709 2363-Mar-21 21:00 3.416890391682 -10.4707981 2363-Mar-22 00:00 3.416134267879 -10.4738260 2363-Mar-22 03:00 3.415377925409 -10.4768548 2363-Mar-22 06:00 3.414621364214 -10.4798843 2363-Mar-22 09:00 3.413864584234 -10.4829147 2363-Mar-22 12:00 3.413107585412 -10.4859459 2363-Mar-22 15:00 3.412350367688 -10.4889779 2363-Mar-22 18:00 3.411592931004 -10.4920107 2363-Mar-22 21:00 3.410835275303 -10.4950443 2363-Mar-23 00:00 3.410077400525 -10.4980788 2363-Mar-23 03:00 3.409319306612 -10.5011141 2363-Mar-23 06:00 3.408560993504 -10.5041501 2363-Mar-23 09:00 3.407802461144 -10.5071870 2363-Mar-23 12:00 3.407043709473 -10.5102247 2363-Mar-23 15:00 3.406284738432 -10.5132632 2363-Mar-23 18:00 3.405525547963 -10.5163026 2363-Mar-23 21:00 3.404766138006 -10.5193427 2363-Mar-24 00:00 3.404006508502 -10.5223837 2363-Mar-24 03:00 3.403246659394 -10.5254255 2363-Mar-24 06:00 3.402486590622 -10.5284681 2363-Mar-24 09:00 3.401726302127 -10.5315115 2363-Mar-24 12:00 3.400965793851 -10.5345558 2363-Mar-24 15:00 3.400205065733 -10.5376009 2363-Mar-24 18:00 3.399444117717 -10.5406467 2363-Mar-24 21:00 3.398682949742 -10.5436934 2363-Mar-25 00:00 3.397921561749 -10.5467410 2363-Mar-25 03:00 3.397159953680 -10.5497893 2363-Mar-25 06:00 3.396398125475 -10.5528385 2363-Mar-25 09:00 3.395636077075 -10.5558885 2363-Mar-25 12:00 3.394873808421 -10.5589393 2363-Mar-25 15:00 3.394111319454 -10.5619909 2363-Mar-25 18:00 3.393348610115 -10.5650434 2363-Mar-25 21:00 3.392585680345 -10.5680967 2363-Mar-26 00:00 3.391822530083 -10.5711508 2363-Mar-26 03:00 3.391059159272 -10.5742057 2363-Mar-26 06:00 3.390295567851 -10.5772615 2363-Mar-26 09:00 3.389531755761 -10.5803180 2363-Mar-26 12:00 3.388767722944 -10.5833754 2363-Mar-26 15:00 3.388003469339 -10.5864337 2363-Mar-26 18:00 3.387238994886 -10.5894927 2363-Mar-26 21:00 3.386474299528 -10.5925526 2363-Mar-27 00:00 3.385709383203 -10.5956133 2363-Mar-27 03:00 3.384944245854 -10.5986748 2363-Mar-27 06:00 3.384178887419 -10.6017372 2363-Mar-27 09:00 3.383413307840 -10.6048004 2363-Mar-27 12:00 3.382647507056 -10.6078644 2363-Mar-27 15:00 3.381881485009 -10.6109293 2363-Mar-27 18:00 3.381115241639 -10.6139949 2363-Mar-27 21:00 3.380348776885 -10.6170615 2363-Mar-28 00:00 3.379582090688 -10.6201288 2363-Mar-28 03:00 3.378815182989 -10.6231970 2363-Mar-28 06:00 3.378048053728 -10.6262660 2363-Mar-28 09:00 3.377280702844 -10.6293358 2363-Mar-28 12:00 3.376513130278 -10.6324065 2363-Mar-28 15:00 3.375745335971 -10.6354780 2363-Mar-28 18:00 3.374977319861 -10.6385503 2363-Mar-28 21:00 3.374209081890 -10.6416234 2363-Mar-29 00:00 3.373440621998 -10.6446974 2363-Mar-29 03:00 3.372671940123 -10.6477723 2363-Mar-29 06:00 3.371903036207 -10.6508479 2363-Mar-29 09:00 3.371133910189 -10.6539244 2363-Mar-29 12:00 3.370364562010 -10.6570018 2363-Mar-29 15:00 3.369594991609 -10.6600799 2363-Mar-29 18:00 3.368825198926 -10.6631589 2363-Mar-29 21:00 3.368055183900 -10.6662388 2363-Mar-30 00:00 3.367284946473 -10.6693194 $$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 = '90001064' START_TIME = '2363-Mar-01' STOP_TIME = '2363-Mar-30' STEP_SIZE = '3 hours' QUANTITIES = '19'