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Merge pull request astropy#2154 from mkelley/jplhorizons-api-update
Updates for new jplhorizons API.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| Generate these files from the following URIs: | ||
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| ceres_elements.txt | ||
| https://ssd.jpl.nasa.gov/api/horizons.api?format=text&EPHEM_TYPE=ELEMENTS&MAKE_EPHEM=YES&OUT_UNITS=AU-D&COMMAND=%22Ceres%3B%22&CENTER=%27500%4010%27&CSV_FORMAT=YES&ELEM_LABELS=YES&OBJ_DATA=YES&REF_SYSTEM=ICRF&REF_PLANE=ECLIPTIC&TP_TYPE=ABSOLUTE&TLIST=2451544.5 | ||
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| ceres_ephemerides.txt | ||
| https://ssd.jpl.nasa.gov/api/horizons.api?format=text&EPHEM_TYPE=OBSERVER&QUANTITIES=%271%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C9%2C10%2C11%2C12%2C13%2C14%2C15%2C16%2C17%2C18%2C19%2C20%2C21%2C22%2C23%2C24%2C25%2C26%2C27%2C28%2C29%2C30%2C31%2C32%2C33%2C34%2C35%2C36%2C37%2C38%2C39%2C40%2C41%2C42%2C43%27&COMMAND=%22Ceres%3B%22&SOLAR_ELONG=%220%2C180%22&LHA_CUTOFF=0&CSV_FORMAT=YES&CAL_FORMAT=BOTH&ANG_FORMAT=DEG&APPARENT=AIRLESS&REF_SYSTEM=ICRF&EXTRA_PREC=NO&CENTER=%27500%27&TLIST=2451544.5&SKIP_DAYLT=NO | ||
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| ceres_vectors.txt | ||
| https://ssd.jpl.nasa.gov/api/horizons.api?format=text&EPHEM_TYPE=VECTORS&OUT_UNITS=AU-D&COMMAND=%22Ceres%3B%22&CENTER=%27500%4010%27&CSV_FORMAT=%22YES%22&REF_PLANE=ECLIPTIC&REF_SYSTEM=ICRF&TP_TYPE=ABSOLUTE&VEC_LABELS=YES&VEC_CORR=%22NONE%22&VEC_DELTA_T=NO&OBJ_DATA=YES&TLIST=2451544.5 | ||
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| no_H.txt | ||
| https://ssd.jpl.nasa.gov/api/horizons.api?format=text&EPHEM_TYPE=OBSERVER&QUANTITIES=%271%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C9%2C10%2C11%2C12%2C13%2C14%2C15%2C16%2C17%2C18%2C19%2C20%2C21%2C22%2C23%2C24%2C25%2C26%2C27%2C28%2C29%2C30%2C31%2C32%2C33%2C34%2C35%2C36%2C37%2C38%2C39%2C40%2C41%2C42%2C43%27&COMMAND=%221935+UZ%3B%22&SOLAR_ELONG=%220%2C180%22&LHA_CUTOFF=0&CSV_FORMAT=YES&CAL_FORMAT=BOTH&ANG_FORMAT=DEG&APPARENT=AIRLESS&REF_SYSTEM=ICRF&EXTRA_PREC=NO&CENTER=%27500%40399%27&TLIST=2459480.5004416634&SKIP_DAYLT=NO |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,33 +1,36 @@ | ||
| ******************************************************************************* | ||
| JPL/HORIZONS 1 Ceres (A801 AA) 2020-May-29 09:49:47 | ||
| Rec #: 1 (+COV) Soln.date: 2020-May-20_11:11:55 # obs: 1030 (1995-2020) | ||
| API VERSION: 1.0 | ||
| API SOURCE: NASA/JPL Horizons API | ||
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| ******************************************************************************* | ||
| JPL/HORIZONS 1 Ceres (A801 AA) 2021-Sep-22 17:02:01 | ||
| Rec #: 1 (+COV) Soln.date: 2021-Apr-13_11:04:44 # obs: 1075 (1995-2021) | ||
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| IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): | ||
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| EPOCH= 2454061.5 ! 2006-Nov-22.00 (TDB) Residual RMS= .24184 | ||
| EC= .07985681703215082 QR= 2.544823927206557 TP= 2454873.5774668744 | ||
| OM= 80.40822338295483 W= 73.18422155550952 IN= 10.58670363476912 | ||
| A= 2.765682531058295 MA= 185.9804488570544 ADIST= 2.986541134910033 | ||
| PER= 4.59951 N= .214289342 ANGMOM= .028516315 | ||
| DAN= 2.68599 DDN= 2.81303 L= 153.318086 | ||
| B= 10.1291284 MOID= 1.57983994 TP= 2009-Feb-11.0774668744 | ||
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| EPOCH= 2458849.5 ! 2020-Jan-01.00 (TDB) Residual RMS= .24563 | ||
| EC= .07687465013145245 QR= 2.556401146697176 TP= 2458240.1791309435 | ||
| OM= 80.3011901917491 W= 73.80896808746482 IN= 10.59127767086216 | ||
| A= 2.769289292143484 MA= 130.3159688200986 ADIST= 2.982177437589792 | ||
| PER= 4.60851 N= .213870839 ANGMOM= .028541613 | ||
| DAN= 2.69515 DDN= 2.81323 L= 153.8445988 | ||
| B= 10.1666388 MOID= 1.59231997 TP= 2018-May-01.6791309435 | ||
| Asteroid physical parameters (km, seconds, rotational period in hours): | ||
| GM= 62.6284 RAD= 469.7 ROTPER= 9.07417 | ||
| H= 3.4 G= .120 B-V= .713 | ||
| H= 3.53 G= .120 B-V= .713 | ||
| ALBEDO= .090 STYP= C | ||
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| ASTEROID comments: | ||
| 1: soln ref.= JPL#47, OCC=0 radar(60 delay, 0 Dop.) | ||
| ASTEROID comments: | ||
| 1: soln ref.= JPL#48, OCC=0 radar(60 delay, 0 Dop.) | ||
| 2: source=ORB | ||
| ******************************************************************************* | ||
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| ******************************************************************************* | ||
| Ephemeris / WWW_USER Fri May 29 09:49:47 2020 Pasadena, USA / Horizons | ||
| Ephemeris / API_USER Wed Sep 22 17:02:01 2021 Pasadena, USA / Horizons | ||
| ******************************************************************************* | ||
| Target body name: 1 Ceres (A801 AA) {source: JPL#47} | ||
| Center body name: Sun (10) {source: DE431} | ||
| Target body name: 1 Ceres (A801 AA) {source: JPL#48} | ||
| Center body name: Sun (10) {source: DE441} | ||
| Center-site name: BODY CENTER | ||
| ******************************************************************************* | ||
| Start time : A.D. 2000-Jan-01 00:00:00.0000 TDB | ||
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@@ -36,51 +39,49 @@ Step-size : 0 steps | |
| ******************************************************************************* | ||
| Center geodetic : 0.00000000,0.00000000,0.0000000 {E-lon(deg),Lat(deg),Alt(km)} | ||
| Center cylindric: 0.00000000,0.00000000,0.0000000 {E-lon(deg),Dxy(km),Dz(km)} | ||
| Center radii : 696000.0 x 696000.0 x 696000.0 k{Equator, meridian, pole} | ||
| Keplerian GM : 2.9591220828559093E-04 au^3/d^2 | ||
| Small perturbers: Yes {source: SB431-N16} | ||
| Center radii : 696000.0 x 696000.0 x 696000.0 k{Equator, meridian, pole} | ||
| Keplerian GM : 2.9591220828411951E-04 au^3/d^2 | ||
| Small perturbers: Yes {source: SB441-N16} | ||
| Output units : AU-D, deg, Julian Day Number (Tp) | ||
| Output type : GEOMETRIC osculating elements | ||
| Output format : 10 | ||
| Reference frame : ICRF/J2000.0 | ||
| Coordinate systm: Ecliptic and Mean Equinox of Reference Epoch | ||
| Reference frame : Ecliptic of J2000.0 | ||
| ******************************************************************************* | ||
| Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): | ||
| EPOCH= 2454061.5 ! 2006-Nov-22.00 (TDB) Residual RMS= .24184 | ||
| EC= .07985681703215082 QR= 2.544823927206557 TP= 2454873.5774668744 | ||
| OM= 80.40822338295483 W= 73.18422155550952 IN= 10.58670363476912 | ||
| Equivalent ICRF heliocentric equatorial cartesian coordinates (au, au/d): | ||
| X= 2.732617277025615E+00 Y=-7.734822664676754E-01 Z=-9.207592896905449E-01 | ||
| VX= 3.368590810386608E-03 VY= 8.330863405401928E-03 VZ= 3.238410491551668E-03 | ||
| Asteroid physical parameters (km, seconds, rotational period in hours): | ||
| GM= 62.6284 RAD= 469.7 ROTPER= 9.07417 | ||
| H= 3.4 G= .120 B-V= .713 | ||
| ALBEDO= .090 STYP= C | ||
| EPOCH= 2458849.5 ! 2020-Jan-01.00 (TDB) Residual RMS= .24563 | ||
| EC= .07687465013145245 QR= 2.556401146697176 TP= 2458240.1791309435 | ||
| OM= 80.3011901917491 W= 73.80896808746482 IN= 10.59127767086216 | ||
| Equivalent ICRF heliocentric cartesian coordinates (au, au/d): | ||
| X= 1.007608869613381E+00 Y=-2.390064275223502E+00 Z=-1.332124522752402E+00 | ||
| VX= 9.201724467227128E-03 VY= 3.370381135398406E-03 VZ=-2.850337057661093E-04 | ||
| Asteroid physical parameters (km, seconds, rotational period in hours): | ||
| GM= 62.6284 RAD= 469.7 ROTPER= 9.07417 | ||
| H= 3.53 G= .120 B-V= .713 | ||
| ALBEDO= .090 STYP= C | ||
| ******************************************************************************* | ||
| JDTDB, Calendar Date (TDB), EC, QR, IN, OM, W, Tp, N, MA, TA, A, AD, PR, | ||
| ************************************************************************************************************************************************************************************************************************************************************************************************************************************************** | ||
| $$SOE | ||
| 2451544.500000000, A.D. 2000-Jan-01 00:00:00.0000, 7.837505661794254E-02, 2.549670138349935E+00, 1.058336073882007E+01, 8.049436523546700E+01, 7.392278833506030E+01, 2.451516163109598E+06, 2.141950390313929E-01, 6.069621345711466E+00, 7.121192564072539E+00, 2.766494284533461E+00, 2.983318430716986E+00, 1.680711194936862E+03, | ||
| 2451544.500000000, A.D. 2000-Jan-01 00:00:00.0000, 7.837505574674922E-02, 2.549670145428669E+00, 1.058336066935565E+01, 8.049436497808115E+01, 7.392278720553115E+01, 2.451516163103133E+06, 2.141950384425567E-01, 6.069622713669460E+00, 7.121194154895409E+00, 2.766494289599058E+00, 2.983318433769447E+00, 1.680711199557247E+03, | ||
| $$EOE | ||
| ************************************************************************************************************************************************************************************************************************************************************************************************************************************************** | ||
| Coordinate system description: | ||
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| Ecliptic and Mean Equinox of Reference Epoch | ||
| Ecliptic at the standard reference epoch | ||
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| Reference epoch: J2000.0 | ||
| XY-plane: plane of the Earth's orbit at the reference epoch | ||
| Note: obliquity of 84381.448 arcseconds wrt ICRF equator (IAU76) | ||
| X-axis : out along ascending node of instantaneous plane of the Earth's | ||
| orbit and the Earth's mean equator at the reference epoch | ||
| Z-axis : perpendicular to the xy-plane in the directional (+ or -) sense | ||
| of Earth's north pole at the reference epoch. | ||
| X-Y plane: adopted Earth orbital plane at the reference epoch | ||
| Note: obliquity of 84381.448 arcseconds (IAU76) wrt ICRF equator | ||
| X-axis : ICRF | ||
| Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense | ||
| of Earth's north pole at the reference epoch. | ||
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| Symbol meaning [1 au= 149597870.700 km, 1 day= 86400.0 s]: | ||
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| JDTDB Julian Day Number, Barycentric Dynamical Time | ||
| EC Eccentricity, e | ||
| QR Periapsis distance, q (au) | ||
| IN Inclination w.r.t XY-plane, i (degrees) | ||
| IN Inclination w.r.t X-Y plane, i (degrees) | ||
| OM Longitude of Ascending Node, OMEGA, (degrees) | ||
| W Argument of Perifocus, w (degrees) | ||
| Tp Time of periapsis (Julian Day Number) | ||
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@@ -93,13 +94,16 @@ Coordinate system description: | |
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| Geometric states/elements have no aberrations applied. | ||
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| Computations by ... | ||
| Solar System Dynamics Group, Horizons On-Line Ephemeris System | ||
| 4800 Oak Grove Drive, Jet Propulsion Laboratory | ||
| Pasadena, CA 91109 USA | ||
| Information: http://ssd.jpl.nasa.gov/ | ||
| Connect : telnet://ssd.jpl.nasa.gov:6775 (via browser) | ||
| http://ssd.jpl.nasa.gov/?horizons | ||
| telnet ssd.jpl.nasa.gov 6775 (via command-line) | ||
| Author : [email protected] | ||
| Information : https://ssd.jpl.nasa.gov/ | ||
| Documentation: https://ssd.jpl.nasa.gov/?horizons_doc | ||
| Connect : https://ssd.jpl.nasa.gov/?horizons (browser) | ||
| telnet ssd.jpl.nasa.gov 6775 (command-line) | ||
| e-mail command interface available | ||
| Script and CGI interfaces available | ||
| Author : [email protected] | ||
| ******************************************************************************* | ||
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