API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 101P-B/Chernykh 2024-May-01 23:49:06 Rec #:90000946 (+COV) Soln.date: 2017-Jun-08_16:42:12 # obs: 98 (2005-2006) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2453733.5 ! 2005-Dec-29.0000000 (TDB) RMSW= n.a. EC= .5947203403123665 QR= 2.350527046947969 TP= 2453728.8893442075 OM= 130.2337768015298 W= 263.1851639654208 IN= 5.078327540984246 A= 5.799765645183432 MA= .3253502220793342 ADIST= 9.249004243418895 PER= 13.96766691487 N= .070564847 ANGMOM= .033304762 DAN= 4.03305 DDN= 3.50134 L= 33.3923386 B= -5.042355 MOID= 1.36269999 TP= 2005-Dec-24.3893442075 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 13. M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#5, data arc: 2005-11-30 to 2006-03-19 2: k1=10; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Wed May 1 23:49:06 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 101P-B/Chernykh {source: JPL#5} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2020-Jan-20 00:00:00.0000 UT Stop time : A.D. 2020-Feb-10 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.240501.p240725 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-01. PREDICTS-> 2024-JUL-24 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= 2453733.5 ! 2005-Dec-29.0000000 (TDB) RMSW= n.a. EC= .5947203403123665 QR= 2.350527046947969 TP= 2453728.8893442075 OM= 130.2337768015298 W= 263.1851639654208 IN= 5.078327540984246 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.918436646088704E+00 Y= 1.314464834456514E+00 Z= 3.440232187782822E-01 VX=-8.012186218253991E-03 VY= 1.077037123232167E-02 VZ= 4.531006412922902E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 13. M2= n.a. k1= 10. k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2020-Jan-20 00:00 2.351995257460 -0.6163037 2020-Jan-20 03:00 2.351951015318 -0.6094234 2020-Jan-20 06:00 2.351907269884 -0.6025425 2020-Jan-20 09:00 2.351864021199 -0.5956609 2020-Jan-20 12:00 2.351821269308 -0.5887788 2020-Jan-20 15:00 2.351779014252 -0.5818961 2020-Jan-20 18:00 2.351737256074 -0.5750128 2020-Jan-20 21:00 2.351695994814 -0.5681290 2020-Jan-21 00:00 2.351655230515 -0.5612446 2020-Jan-21 03:00 2.351614963216 -0.5543596 2020-Jan-21 06:00 2.351575192957 -0.5474740 2020-Jan-21 09:00 2.351535919779 -0.5405880 2020-Jan-21 12:00 2.351497143719 -0.5337014 2020-Jan-21 15:00 2.351458864818 -0.5268142 2020-Jan-21 18:00 2.351421083112 -0.5199266 2020-Jan-21 21:00 2.351383798639 -0.5130384 2020-Jan-22 00:00 2.351347011436 -0.5061497 2020-Jan-22 03:00 2.351310721541 -0.4992605 2020-Jan-22 06:00 2.351274928989 -0.4923708 2020-Jan-22 09:00 2.351239633815 -0.4854806 2020-Jan-22 12:00 2.351204836055 -0.4785900 2020-Jan-22 15:00 2.351170535744 -0.4716988 2020-Jan-22 18:00 2.351136732915 -0.4648072 2020-Jan-22 21:00 2.351103427603 -0.4579152 2020-Jan-23 00:00 2.351070619840 -0.4510226 2020-Jan-23 03:00 2.351038309659 -0.4441297 2020-Jan-23 06:00 2.351006497092 -0.4372362 2020-Jan-23 09:00 2.350975182172 -0.4303424 2020-Jan-23 12:00 2.350944364928 -0.4234481 2020-Jan-23 15:00 2.350914045393 -0.4165534 2020-Jan-23 18:00 2.350884223596 -0.4096583 2020-Jan-23 21:00 2.350854899566 -0.4027627 2020-Jan-24 00:00 2.350826073334 -0.3958668 2020-Jan-24 03:00 2.350797744928 -0.3889705 2020-Jan-24 06:00 2.350769914376 -0.3820738 2020-Jan-24 09:00 2.350742581705 -0.3751767 2020-Jan-24 12:00 2.350715746944 -0.3682792 2020-Jan-24 15:00 2.350689410119 -0.3613814 2020-Jan-24 18:00 2.350663571256 -0.3544832 2020-Jan-24 21:00 2.350638230381 -0.3475846 2020-Jan-25 00:00 2.350613387520 -0.3406857 2020-Jan-25 03:00 2.350589042696 -0.3337865 2020-Jan-25 06:00 2.350565195935 -0.3268869 2020-Jan-25 09:00 2.350541847261 -0.3199870 2020-Jan-25 12:00 2.350518996696 -0.3130868 2020-Jan-25 15:00 2.350496644263 -0.3061863 2020-Jan-25 18:00 2.350474789986 -0.2992854 2020-Jan-25 21:00 2.350453433885 -0.2923843 2020-Jan-26 00:00 2.350432575982 -0.2854829 2020-Jan-26 03:00 2.350412216297 -0.2785812 2020-Jan-26 06:00 2.350392354853 -0.2716792 2020-Jan-26 09:00 2.350372991667 -0.2647769 2020-Jan-26 12:00 2.350354126760 -0.2578744 2020-Jan-26 15:00 2.350335760150 -0.2509716 2020-Jan-26 18:00 2.350317891856 -0.2440686 2020-Jan-26 21:00 2.350300521896 -0.2371653 2020-Jan-27 00:00 2.350283650288 -0.2302618 2020-Jan-27 03:00 2.350267277047 -0.2233580 2020-Jan-27 06:00 2.350251402190 -0.2164540 2020-Jan-27 09:00 2.350236025735 -0.2095499 2020-Jan-27 12:00 2.350221147695 -0.2026455 2020-Jan-27 15:00 2.350206768085 -0.1957408 2020-Jan-27 18:00 2.350192886922 -0.1888360 2020-Jan-27 21:00 2.350179504217 -0.1819311 2020-Jan-28 00:00 2.350166619985 -0.1750259 2020-Jan-28 03:00 2.350154234239 -0.1681205 2020-Jan-28 06:00 2.350142346990 -0.1612150 2020-Jan-28 09:00 2.350130958252 -0.1543093 2020-Jan-28 12:00 2.350120068036 -0.1474035 2020-Jan-28 15:00 2.350109676352 -0.1404975 2020-Jan-28 18:00 2.350099783211 -0.1335914 2020-Jan-28 21:00 2.350090388623 -0.1266851 2020-Jan-29 00:00 2.350081492598 -0.1197787 2020-Jan-29 03:00 2.350073095144 -0.1128722 2020-Jan-29 06:00 2.350065196271 -0.1059656 2020-Jan-29 09:00 2.350057795986 -0.0990589 2020-Jan-29 12:00 2.350050894296 -0.0921520 2020-Jan-29 15:00 2.350044491209 -0.0852451 2020-Jan-29 18:00 2.350038586731 -0.0783381 2020-Jan-29 21:00 2.350033180868 -0.0714310 2020-Jan-30 00:00 2.350028273627 -0.0645238 2020-Jan-30 03:00 2.350023865011 -0.0576166 2020-Jan-30 06:00 2.350019955025 -0.0507093 2020-Jan-30 09:00 2.350016543674 -0.0438020 2020-Jan-30 12:00 2.350013630962 -0.0368946 2020-Jan-30 15:00 2.350011216890 -0.0299871 2020-Jan-30 18:00 2.350009301462 -0.0230797 2020-Jan-30 21:00 2.350007884680 -0.0161722 2020-Jan-31 00:00 2.350006966545 -0.0092647 2020-Jan-31 03:00 2.350006547058 -0.0023572 2020-Jan-31 06:00 2.350006626221 0.0045504 2020-Jan-31 09:00 2.350007204033 0.0114579 2020-Jan-31 12:00 2.350008280494 0.0183654 2020-Jan-31 15:00 2.350009855603 0.0252729 2020-Jan-31 18:00 2.350011929358 0.0321804 2020-Jan-31 21:00 2.350014501758 0.0390878 2020-Feb-01 00:00 2.350017572800 0.0459952 2020-Feb-01 03:00 2.350021142481 0.0529026 2020-Feb-01 06:00 2.350025210799 0.0598099 2020-Feb-01 09:00 2.350029777749 0.0667171 2020-Feb-01 12:00 2.350034843327 0.0736243 2020-Feb-01 15:00 2.350040407528 0.0805315 2020-Feb-01 18:00 2.350046470346 0.0874385 2020-Feb-01 21:00 2.350053031777 0.0943455 2020-Feb-02 00:00 2.350060091813 0.1012523 2020-Feb-02 03:00 2.350067650448 0.1081591 2020-Feb-02 06:00 2.350075707674 0.1150658 2020-Feb-02 09:00 2.350084263484 0.1219723 2020-Feb-02 12:00 2.350093317869 0.1288788 2020-Feb-02 15:00 2.350102870821 0.1357851 2020-Feb-02 18:00 2.350112922330 0.1426912 2020-Feb-02 21:00 2.350123472386 0.1495973 2020-Feb-03 00:00 2.350134520980 0.1565032 2020-Feb-03 03:00 2.350146068100 0.1634089 2020-Feb-03 06:00 2.350158113735 0.1703145 2020-Feb-03 09:00 2.350170657873 0.1772199 2020-Feb-03 12:00 2.350183700503 0.1841251 2020-Feb-03 15:00 2.350197241611 0.1910302 2020-Feb-03 18:00 2.350211281185 0.1979351 2020-Feb-03 21:00 2.350225819209 0.2048397 2020-Feb-04 00:00 2.350240855671 0.2117442 2020-Feb-04 03:00 2.350256390556 0.2186485 2020-Feb-04 06:00 2.350272423847 0.2255525 2020-Feb-04 09:00 2.350288955531 0.2324564 2020-Feb-04 12:00 2.350305985589 0.2393600 2020-Feb-04 15:00 2.350323514007 0.2462634 2020-Feb-04 18:00 2.350341540765 0.2531665 2020-Feb-04 21:00 2.350360065848 0.2600694 2020-Feb-05 00:00 2.350379089236 0.2669720 2020-Feb-05 03:00 2.350398610912 0.2738744 2020-Feb-05 06:00 2.350418630855 0.2807765 2020-Feb-05 09:00 2.350439149046 0.2876783 2020-Feb-05 12:00 2.350460165466 0.2945798 2020-Feb-05 15:00 2.350481680093 0.3014811 2020-Feb-05 18:00 2.350503692906 0.3083820 2020-Feb-05 21:00 2.350526203884 0.3152827 2020-Feb-06 00:00 2.350549213004 0.3221830 2020-Feb-06 03:00 2.350572720245 0.3290830 2020-Feb-06 06:00 2.350596725582 0.3359827 2020-Feb-06 09:00 2.350621228993 0.3428821 2020-Feb-06 12:00 2.350646230453 0.3497811 2020-Feb-06 15:00 2.350671729937 0.3566798 2020-Feb-06 18:00 2.350697727422 0.3635781 2020-Feb-06 21:00 2.350724222880 0.3704761 2020-Feb-07 00:00 2.350751216286 0.3773737 2020-Feb-07 03:00 2.350778707614 0.3842710 2020-Feb-07 06:00 2.350806696837 0.3911678 2020-Feb-07 09:00 2.350835183926 0.3980643 2020-Feb-07 12:00 2.350864168855 0.4049604 2020-Feb-07 15:00 2.350893651594 0.4118561 2020-Feb-07 18:00 2.350923632114 0.4187514 2020-Feb-07 21:00 2.350954110387 0.4256462 2020-Feb-08 00:00 2.350985086382 0.4325407 2020-Feb-08 03:00 2.351016560068 0.4394347 2020-Feb-08 06:00 2.351048531415 0.4463283 2020-Feb-08 09:00 2.351081000392 0.4532215 2020-Feb-08 12:00 2.351113966966 0.4601142 2020-Feb-08 15:00 2.351147431104 0.4670065 2020-Feb-08 18:00 2.351181392775 0.4738983 2020-Feb-08 21:00 2.351215851945 0.4807896 2020-Feb-09 00:00 2.351250808579 0.4876804 2020-Feb-09 03:00 2.351286262644 0.4945708 2020-Feb-09 06:00 2.351322214105 0.5014607 2020-Feb-09 09:00 2.351358662926 0.5083501 2020-Feb-09 12:00 2.351395609071 0.5152390 2020-Feb-09 15:00 2.351433052505 0.5221274 2020-Feb-09 18:00 2.351470993189 0.5290153 2020-Feb-09 21:00 2.351509431088 0.5359027 2020-Feb-10 00:00 2.351548366164 0.5427895 $$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 *******************************************************************************