!$$SOF COMMAND= 'DES=2012 DA14' CENTER= 'coord@399' COORD_TYPE= 'GEODETIC' SITE_COORD= '1.826615,41.72901,0.25' MAKE_EPHEM= 'YES' TABLE_TYPE= 'OBSERVER' START_TIME= '2013-02-15 18:00 ut+1' STOP_TIME= '2013-02-16 02:00' STEP_SIZE= '10 m' CAL_FORMAT= 'CAL' TIME_DIGITS= 'MINUTES' ANG_FORMAT= 'HMS' OUT_UNITS= 'KM-S' RANGE_UNITS= 'AU' APPARENT= 'REFRACTED' SOLAR_ELONG= '0,180' SUPPRESS_RANGE_RATE= 'NO' SKIP_DAYLT= 'NO' EXTRA_PREC= 'NO' R_T_S_ONLY= 'NO' REF_SYSTEM= 'J2000' CSV_FORMAT= 'NO' OBJ_DATA= 'YES' QUANTITIES= '2,4,9,21,29' !$$EOF http://ssd.jpl.nasa.gov/horizons.cgi?show=1#results HORIZONS Web-Interface This tool provides a web-based limited interface to JPL's HORIZONS system which can be used to generate ephemerides for solar-system bodies. Full access to HORIZONS features is available via the primary telnet interface. HORIZONS system news shows recent changes and improvements. A web-interface tutorial is available to assist new users. Current Settings Ephemeris Type [change] : OBSERVER Target Body [change] : Asteroid (2012 DA14) Observer Location [change] : user defined ( 1°49'35.8''E, 41°43'44.4''N, 0.25 km ) Time Span [change] : Start=2013-02-15 18:00 ut+1, Stop=2013-02-16 02:00, Step=10 m Table Settings [change] : QUANTITIES=2,4,9,21,29; refraction model=REFRACTED Display/Output [change] : default (formatted HTML) Object Data Page JPL/HORIZONS (2012 DA14) 2013-Feb-13 10:01:58 Rec #:728624 (+COV) Soln.date: 2013-Feb-12_01:50:19 # obs: 297 (2012-2013) FK5/J2000.0 helio. ecliptic osc. elements (AU, DAYS, DEG, period=Julian yrs): EPOCH= 2456084.5 ! 2012-Jun-06.00 (CT) Residual RMS= .26498 EC= .108146510895916 QR= .8934449305487195 TP= 2456261.5651550395 OM= 147.266508860479 W= 271.0989179073417 IN= 10.33697304408619 A= 1.001784420270906 MA= 185.9493025050191 ADIST= 1.110123909993092 PER= 1.0027 N= .982975433 ANGMOM= .017116459 DAN= .98802 DDN= .99213 L= 58.3835525 B= -10.3350509 TP= 2012-Nov-30.0651550395 Physical parameters (KM, SEC, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.092 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#44, OCC=0 2: source=ORB Results IBOD = 399 ELPOS = T ARR(1)= 1.8266150000000 ******************************************************************************* Ephemeris / WWW_USER Wed Feb 13 10:01:58 2013 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2012 DA14) {source: JPL#44} Center body name: Earth (399) {source: DE405} Center-site name: (user defined site below) ******************************************************************************* Start time : A.D. 2013-Feb-15 18:00:00.0000 UT+01:00 Stop time : A.D. 2013-Feb-16 02:00:00.0000 UT+01:00 Step-size : 10 minutes ******************************************************************************* Target pole/equ : No model available Target radii : (unavailable) Center geodetic : 1.82661500,41.7290575,0.2493500 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 1.82661500,4767.27276,4223.3548 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : High-precision EOP model {East-longitude +} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target primary : Sun {source: DE405} Vis. interferer : MOON (R_eq= 1737.400) km {source: DE405} Rel. light bend : Sun, EARTH {source: DE405} Rel. lght bnd GM: 1.3271E+11, 3.9860E+05 km^3/s^2 Small perturbers: Ceres, Pallas, Vesta {source: SB405-CPV-2} Small body GMs : 6.32E+01, 1.43E+01, 1.78E+01 km^3/s^2 Atmos refraction: YES (Earth refraction model) RA format : HMS Time format : CAL Time zone : UT+01:00 RTS-only print : NO EOP file : eop.130212.p130506 EOP coverage : DATA-BASED 1962-JAN-20 TO 2013-FEB-12. PREDICTS-> 2013-MAY-05 Units conversion: 1 AU= 149597870.691 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 ) ******************************************************************************* Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG): EPOCH= 2456084.5 ! 2012-Jun-06.00 (CT) Residual RMS= .26498 EC= .108146510895916 QR= .8934449305487195 TP= 2456261.5651550395 OM= 147.266508860479 W= 271.0989179073417 IN= 10.33697304408619 Asteroid physical parameters (KM, SEC, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.092 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. *************************************************************************************** Date_(ZONE)_HR:MN R.A.__(r-apparent)__DEC Azi_(r-appr)_Elev APmag 1-way_LT Cnst *************************************************************************************** $$SOE 2013-Feb-15 18:00 *m 11 23 12.87 -72 43 18.6 158.4125 -50.5684 10.56 0.004102 Mus 2013-Feb-15 18:10 *m 11 28 12.63 -70 51 11.0 155.4318 -50.8599 10.40 0.003908 Mus 2013-Feb-15 18:20 *m 11 32 44.16 -68 47 15.4 152.0773 -51.0086 10.22 0.003718 Mus 2013-Feb-15 18:30 Cm 11 36 51.73 -66 29 55.2 148.3336 -50.9715 10.04 0.003530 Mus 2013-Feb-15 18:40 Cm 11 40 38.88 -63 57 18.5 144.1978 -50.6972 9.85 0.003346 Ce 2013-Feb-15 18:50 Cm 11 44 08.55 -61 07 16.7 139.6845 -50.1254 9.65 0.003167 Ce 2013-Feb-15 19:00 Nm 11 47 23.17 -57 57 23.7 134.8294 -49.1880 9.44 0.002993 Ce 2013-Feb-15 19:10 Nm 11 50 24.69 -54 24 57.0 129.6912 -47.8102 9.22 0.002825 Ce 2013-Feb-15 19:20 Nm 11 53 14.71 -50 27 00.4 124.3487 -45.9147 8.99 0.002665 Cen 2013-Feb-15 19:30 Am 11 55 54.55 -46 00 33.2 118.8945 -43.4265 8.76 0.002516 Cen 2013-Feb-15 19:40 Am 11 58 25.41 -41 02 46.1 113.4237 -40.2806 8.52 0.002377 Cen 2013-Feb-15 19:50 Am 12 00 48.44 -35 31 29.5 108.0232 -36.4310 8.28 0.002254 Cen 2013-Feb-15 20:00 m 12 03 04.84 -29 25 54.8 102.7619 -31.8636 8.05 0.002147 Hya 2013-Feb-15 20:10 m 12 05 15.85 -22 47 26.5 97.6858 -26.6090 7.83 0.002060 Crv 2013-Feb-15 20:20 m 12 07 22.66 -15 40 32.3 92.8185 -20.7552 7.64 0.001996 Crv 2013-Feb-15 20:30 m 12 09 26.36 -08 13 08.4 88.1641 -14.4515 7.49 0.001958 Vir 2013-Feb-15 20:40 m 12 11 27.84 -00 36 15.5 83.7138 -7.9002 7.39 0.001947 Vir 2013-Feb-15 20:50 m 12 13 27.71 +06 57 25.6 79.4517 -1.3307 7.36 0.001964 Vir 2013-Feb-15 21:00 r 12 16 52.81 +13 56 49.0 75.3595 4.5664 7.39 0.002008 Com 2013-Feb-15 21:10 m 12 19 12.96 +20 46 21.9 71.4203 10.4585 7.49 0.002078 Com 2013-Feb-15 21:20 m 12 21 24.31 +27 06 33.0 67.6202 15.9060 7.64 0.002170 Com 2013-Feb-15 21:30 m 12 23 34.95 +32 52 20.5 63.9490 20.8017 7.81 0.002282 Com 2013-Feb-15 21:40 m 12 25 46.42 +38 03 02.9 60.4004 25.1249 8.00 0.002411 CVn 2013-Feb-15 21:50 m 12 27 59.15 +42 40 10.6 56.9709 28.8954 8.20 0.002554 CVn 2013-Feb-15 22:00 m 12 30 13.28 +46 46 24.5 53.6597 32.1548 8.40 0.002709 CVn 2013-Feb-15 22:10 m 12 32 28.87 +50 24 54.7 50.4675 34.9540 8.60 0.002873 CVn 2013-Feb-15 22:20 m 12 34 45.95 +53 38 55.3 47.3960 37.3464 8.79 0.003045 UMa 2013-Feb-15 22:30 m 12 37 04.56 +56 31 29.6 44.4474 39.3828 8.97 0.003224 UMa 2013-Feb-15 22:40 m 12 39 24.72 +59 05 23.6 41.6237 41.1100 9.15 0.003408 UMa 2013-Feb-15 22:50 m 12 41 46.49 +61 23 03.7 38.9264 42.5698 9.31 0.003597 UMa 2013-Feb-15 23:00 m 12 44 09.92 +63 26 37.1 36.3563 43.7987 9.47 0.003789 Dra 2013-Feb-15 23:10 m 12 46 35.07 +65 17 53.0 33.9136 44.8285 9.62 0.003984 Dra 2013-Feb-15 23:20 m 12 49 02.03 +66 58 25.1 31.5975 45.6867 9.76 0.004182 Dra 2013-Feb-15 23:30 m 12 51 30.88 +68 29 33.3 29.4063 46.3971 9.90 0.004382 Dra 2013-Feb-15 23:40 m 12 54 01.72 +69 52 26.0 27.3376 46.9799 10.03 0.004584 Dra 2013-Feb-15 23:50 m 12 56 34.64 +71 08 01.8 25.3885 47.4528 10.16 0.004787 Dra 2013-Feb-16 00:00 m 12 59 09.77 +72 17 10.6 23.5551 47.8309 10.27 0.004992 Dra 2013-Feb-16 00:10 m 13 01 47.22 +73 20 35.6 21.8335 48.1273 10.39 0.005198 Dra 2013-Feb-16 00:20 13 04 27.13 +74 18 54.0 20.2192 48.3532 10.50 0.005404 UMi 2013-Feb-16 00:30 13 07 09.64 +75 12 38.0 18.7077 48.5185 10.60 0.005612 UMi 2013-Feb-16 00:40 13 09 54.89 +76 02 15.4 17.2940 48.6315 10.70 0.005820 UMi 2013-Feb-16 00:50 13 12 43.04 +76 48 10.5 15.9733 48.6997 10.80 0.006028 Cam 2013-Feb-16 01:00 13 15 34.26 +77 30 44.7 14.7408 48.7295 10.89 0.006238 Cam 2013-Feb-16 01:10 t 13 18 28.71 +78 10 16.6 13.5918 48.7264 10.98 0.006447 Cam 2013-Feb-16 01:20 13 21 26.58 +78 47 02.6 12.5214 48.6954 11.06 0.006657 Cam 2013-Feb-16 01:30 13 24 28.05 +79 21 17.2 11.5252 48.6406 11.14 0.006867 Cam 2013-Feb-16 01:40 13 27 33.32 +79 53 13.2 10.5988 48.5659 11.22 0.007078 Cam 2013-Feb-16 01:50 13 30 42.59 +80 23 02.1 9.7378 48.4745 11.30 0.007289 Cam 2013-Feb-16 02:00 13 33 56.06 +80 50 54.1 8.9384 48.3694 11.37 0.007500 Cam $$EOE *************************************************************************************** Column meaning: TIME Prior to 1962, times are UT1. Dates thereafter are UTC. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. Calendar dates prior to 1582-Oct-15 are in the Julian calendar system. Later calendar dates are in the Gregorian system. Time tags refer to the same instant throughout the universe, regardless of where the observer is located. The uniform Coordinate Time scale is used internally. It is equivalent to the current IAU definition of "TDB". Conversion between CT and the selected non-uniform UT output scale has not been determined for UTC times after the next July or January 1st. The last known leap-second is used over any future interval. NOTE: A time-zone correction has been requested. See header. NOTE: "n.a." in output means quantity "not available" at the print-time. SOLAR PRESENCE (OBSERVING SITE) Time tag is followed by a blank, then a solar-presence symbol: '*' Daylight (refracted solar upper-limb on or above apparent horizon) 'C' Civil twilight/dawn 'N' Nautical twilight/dawn 'A' Astronomical twilight/dawn ' ' Night OR geocentric ephemeris LUNAR PRESENCE WITH TARGET RISE/TRANSIT/SET MARKER (OBSERVING SITE) The solar-presence symbol is immediately followed by another marker symbol: 'm' Refracted upper-limb of Moon on or above apparent horizon ' ' Refracted upper-limb of Moon below apparent horizon OR geocentric 'r' Rise (target body on or above cut-off RTS elevation) 't' Transit (target body at or past local maximum RTS elevation) 's' Set (target body on or below cut-off RTS elevation) RTS MARKERS (TVH) Rise and set are with respect to the reference ellipsoid true visual horizon defined by the elevation cut-off angle. Horizon dip and yellow-light refraction (Earth only) are considered. Accuracy is < or = to twice the requested search step-size. R.A._(r-apparent)__DEC. = Refracted apparent right ascension and declination of the target center with respect to the Earth's true-equator and the meridian containing the Earth true equinox-of-date. Corrected for light-time, the gravitational deflection of light, stellar aberration, precession, nutation and approximate atmospheric refraction. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) Azi_(r-appr)_Elev = Refracted apparent azimuth and elevation of target center. Corrected for light-time, the gravitational deflection of light, stellar aberration, precession, nutation and approximate atmospheric refraction. Azimuth measured North(0) -> East(90)-> South(180) -> West(270) -> North (360). Elevation is with respect to plane perpendicular to local zenith direction. TOPOCENTRIC ONLY. Units: DEGREES APmag = Asteroid's approximate apparent visual magnitude by following definition: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2). In principle, accurate to ~ +/- 0.1 magnitude. For solar phase angles > 90 deg, the error could exceed 1 magnitude. No values are output for phase angles greater than 120 degrees, since the extrapolation error could be large and unknown. Units: NONE 1-way_LT = 1-way down-leg light-time from target center to observer. The elapsed time since light (observed at print-time) would have left or reflected off a point at the center of the target. Units: MINUTES Cnst = Constellation ID; the 3-letter abbreviation for the name of the constellation containing the target center's astrometric position, as defined by IAU (1930) boundary delineation. See documentation for list of abbreviations. 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) telnet ssd.jpl.nasa.gov 6775 (via command-line) Author : Jon.Giorgini@jpl.nasa.gov ***************************************************************************************