2013-06-09

Object Data Page

Results

******************************************************************************* Ephemeris / WWW_USER Sun Jun 9 11:45:26 2013 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2013 LR6) {source: JPL#2} Center body name: Earth (399) {source: DE405} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2013-Jun-08 04:00:00.0000 UT Stop time : A.D. 2013-Jun-08 05:00:00.0000 UT Step-size : 1 minutes ******************************************************************************* Target pole/equ : No model available Target radii : (unavailable) 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 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: NO (AIRLESS) RA format : HMS Time format : CAL EOP file : eop.130425.p130717 EOP coverage : DATA-BASED 1962-JAN-20 TO 2013-APR-25. PREDICTS-> 2013-JUL-16 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 ),Local Hour Angle( 0.0=NO ) ******************************************************************************* Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG): EPOCH= 2456450.5 ! 2013-Jun-07.00 (CT) Residual RMS= .42461 EC= .5093520406081375 QR= .9573794446220252 TP= 2456478.8349492103 OM= 76.77606112738147 W= 214.3046047615348 IN= 3.638722867950751 Asteroid physical parameters (KM, SEC, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 27.839 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ********************************************************************************************************************************** Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC APmag delta deldot S-O-T /r S-T-O phi PAB-LON PAB-LAT ********************************************************************************************************************************** $$SOE 2013-Jun-08 04:00 09 36 32.64 -49 48 04.8 15.28 0.00075892792716 -2.0094279 94.1575 /T 85.7995 85.7998 231.4708 -35.5488 2013-Jun-08 04:01 09 34 45.15 -49 51 00.5 15.29 0.00075813149228 -1.9618173 93.9355 /T 86.0215 86.0217 231.5082 -35.7179 2013-Jun-08 04:02 09 32 57.21 -49 53 50.3 15.30 0.00075735418478 -1.9140562 93.7131 /T 86.2440 86.2442 231.5465 -35.8874 2013-Jun-08 04:03 09 31 08.86 -49 56 34.2 15.30 0.00075659606398 -1.8661478 93.4902 /T 86.4669 86.4671 231.5857 -36.0573 2013-Jun-08 04:04 09 29 20.08 -49 59 12.0 15.31 0.00075585718848 -1.8180952 93.2668 /T 86.6904 86.6906 231.6258 -36.2277 2013-Jun-08 04:05 09 27 30.90 -50 01 43.8 15.32 0.00075513761547 -1.7699016 93.0429 /T 86.9143 86.9145 231.6670 -36.3984 2013-Jun-08 04:06 09 25 41.33 -50 04 09.4 15.32 0.00075443740087 -1.7215701 92.8186 /T 87.1386 87.1388 231.7091 -36.5695 2013-Jun-08 04:07 09 23 51.37 -50 06 28.9 15.33 0.00075375659921 -1.6731040 92.5938 /T 87.3634 87.3636 231.7522 -36.7409 2013-Jun-08 04:08 09 22 01.05 -50 08 42.0 15.34 0.00075309526411 -1.6245066 92.3686 /T 87.5886 87.5888 231.7963 -36.9128 2013-Jun-08 04:09 09 20 10.36 -50 10 48.9 15.34 0.00075245344721 -1.5757813 92.1430 /T 87.8143 87.8144 231.8415 -37.0849 2013-Jun-08 04:10 09 18 19.33 -50 12 49.3 15.35 0.00075183119921 -1.5269315 91.9170 /T 88.0403 88.0404 231.8876 -37.2575 2013-Jun-08 04:11 09 16 27.97 -50 14 43.3 15.36 0.00075122856936 -1.4779607 91.6907 /T 88.2667 88.2668 231.9348 -37.4303 2013-Jun-08 04:12 09 14 36.29 -50 16 30.8 15.37 0.00075064560548 -1.4288724 91.4639 /T 88.4935 88.4936 231.9831 -37.6035 2013-Jun-08 04:13 09 12 44.30 -50 18 11.8 15.37 0.00075008235388 -1.3796700 91.2368 /T 88.7207 88.7208 232.0325 -37.7770 2013-Jun-08 04:14 09 10 52.01 -50 19 46.1 15.38 0.00074953885985 -1.3303573 91.0093 /T 88.9481 88.9482 232.0830 -37.9507 2013-Jun-08 04:15 09 08 59.45 -50 21 13.8 15.39 0.00074901516663 -1.2809378 90.7815 /T 89.1760 89.1760 232.1345 -38.1248 2013-Jun-08 04:16 09 07 06.62 -50 22 34.9 15.40 0.00074851131638 -1.2314153 90.5534 /T 89.4041 89.4042 232.1872 -38.2992 2013-Jun-08 04:17 09 05 13.54 -50 23 49.2 15.40 0.00074802734968 -1.1817933 90.3250 /T 89.6325 89.6326 232.2410 -38.4738 2013-Jun-08 04:18 09 03 20.23 -50 24 56.7 15.41 0.00074756330563 -1.1320758 90.0963 /T 89.8613 89.8613 232.2960 -38.6487 2013-Jun-08 04:19 09 01 26.69 -50 25 57.4 15.42 0.00074711922170 -1.0822665 89.8673 /T 90.0903 90.0903 232.3522 -38.8238 2013-Jun-08 04:20 08 59 32.94 -50 26 51.2 15.43 0.00074669513419 -1.0323691 89.6381 /T 90.3195 90.3196 232.4095 -38.9992 2013-Jun-08 04:21 08 57 39.00 -50 27 38.2 15.44 0.00074629107734 -0.9823877 89.4086 /T 90.5490 90.5491 232.4680 -39.1748 2013-Jun-08 04:22 08 55 44.88 -50 28 18.2 15.45 0.00074590708418 -0.9323260 89.1789 /T 90.7788 90.7788 232.5278 -39.3506 2013-Jun-08 04:23 08 53 50.59 -50 28 51.3 15.45 0.00074554318608 -0.8821881 88.9490 /T 91.0087 91.0087 232.5887 -39.5266 2013-Jun-08 04:24 08 51 56.16 -50 29 17.4 15.46 0.00074519941281 -0.8319778 88.7189 /T 91.2389 91.2389 232.6509 -39.7028 2013-Jun-08 04:25 08 50 01.59 -50 29 36.6 15.47 0.00074487579252 -0.7816992 88.4886 /T 91.4692 91.4692 232.7144 -39.8792 2013-Jun-08 04:26 08 48 06.91 -50 29 48.7 15.48 0.00074457235198 -0.7313563 88.2581 /T 91.6997 91.6997 232.7792 -40.0558 2013-Jun-08 04:27 08 46 12.13 -50 29 53.7 15.49 0.00074428911595 -0.6809531 88.0274 /T 91.9304 91.9304 232.8452 -40.2325 2013-Jun-08 04:28 08 44 17.25 -50 29 51.7 15.50 0.00074402610785 -0.6304937 87.7966 /T 92.1612 92.1612 232.9125 -40.4094 2013-Jun-08 04:29 08 42 22.31 -50 29 42.6 15.51 0.00074378334937 -0.5799822 87.5657 /T 92.3921 92.3921 232.9812 -40.5864 2013-Jun-08 04:30 08 40 27.32 -50 29 26.5 15.52 0.00074356086051 -0.5294227 87.3347 /T 92.6232 92.6231 233.0512 -40.7635 2013-Jun-08 04:31 08 38 32.28 -50 29 03.2 15.53 0.00074335865986 -0.4788194 87.1036 /T 92.8543 92.8542 233.1226 -40.9407 2013-Jun-08 04:32 08 36 37.22 -50 28 32.9 15.54 0.00074317676398 -0.4281764 86.8724 /T 93.0855 93.0855 233.1953 -41.1180 2013-Jun-08 04:33 08 34 42.16 -50 27 55.4 15.55 0.00074301518799 -0.3774978 86.6411 /T 93.3168 93.3167 233.2694 -41.2954 2013-Jun-08 04:34 08 32 47.10 -50 27 10.8 15.55 0.00074287394530 -0.3267878 86.4098 /T 93.5482 93.5480 233.3449 -41.4729 2013-Jun-08 04:35 08 30 52.06 -50 26 19.1 15.56 0.00074275304761 -0.2760507 86.1785 /T 93.7795 93.7794 233.4218 -41.6504 2013-Jun-08 04:36 08 28 57.07 -50 25 20.4 15.57 0.00074265250493 -0.2252906 85.9471 /T 94.0109 94.0108 233.5002 -41.8280 2013-Jun-08 04:37 08 27 02.14 -50 24 14.5 15.58 0.00074257232573 -0.1745118 85.7158 /T 94.2423 94.2421 233.5800 -42.0056 2013-Jun-08 04:38 08 25 07.27 -50 23 01.5 15.59 0.00074251251651 -0.1237185 85.4844 /T 94.4736 94.4735 233.6613 -42.1832 2013-Jun-08 04:39 08 23 12.49 -50 21 41.5 15.60 0.00074247308229 -0.0729149 85.2531 /T 94.7050 94.7048 233.7440 -42.3608 2013-Jun-08 04:40 08 21 17.82 -50 20 14.4 15.61 0.00074245402632 -0.0221052 85.0218 /T 94.9363 94.9361 233.8283 -42.5384 2013-Jun-08 04:41 08 19 23.27 -50 18 40.3 15.63 0.00074245535016 0.0287063 84.7906 /T 95.1675 95.1673 233.9141 -42.7160 2013-Jun-08 04:42 08 17 28.84 -50 16 59.1 15.64 0.00074247705362 0.0795154 84.5595 /T 95.3987 95.3985 234.0014 -42.8935 2013-Jun-08 04:43 08 15 34.57 -50 15 10.9 15.65 0.00074251913499 0.1303178 84.3284 /T 95.6297 95.6296 234.0902 -43.0710 2013-Jun-08 04:44 08 13 40.47 -50 13 15.8 15.66 0.00074258159061 0.1811093 84.0975 /T 95.8607 95.8605 234.1806 -43.2484 2013-Jun-08 04:45 08 11 46.54 -50 11 13.7 15.67 0.00074266441527 0.2318857 83.8667 /T 96.0915 96.0913 234.2726 -43.4257 2013-Jun-08 04:46 08 09 52.81 -50 09 04.7 15.68 0.00074276760206 0.2826428 83.6360 /T 96.3222 96.3220 234.3662 -43.6030 2013-Jun-08 04:47 08 07 59.29 -50 06 48.8 15.69 0.00074289114234 0.3333763 83.4055 /T 96.5528 96.5526 234.4614 -43.7801 2013-Jun-08 04:48 08 06 05.99 -50 04 26.0 15.70 0.00074303502578 0.3840821 83.1751 /T 96.7831 96.7829 234.5582 -43.9571 2013-Jun-08 04:49 08 04 12.93 -50 01 56.5 15.71 0.00074319924046 0.4347558 82.9449 /T 97.0133 97.0131 234.6566 -44.1340 2013-Jun-08 04:50 08 02 20.12 -49 59 20.1 15.72 0.00074338377263 0.4853935 82.7150 /T 97.2433 97.2431 234.7567 -44.3107 2013-Jun-08 04:51 08 00 27.58 -49 56 37.0 15.73 0.00074358860695 0.5359909 82.4852 /T 97.4731 97.4729 234.8585 -44.4872 2013-Jun-08 04:52 07 58 35.33 -49 53 47.2 15.75 0.00074381372642 0.5865438 82.2557 /T 97.7026 97.7024 234.9620 -44.6636 2013-Jun-08 04:53 07 56 43.36 -49 50 50.8 15.76 0.00074405911236 0.6370481 82.0264 /T 97.9319 97.9317 235.0672 -44.8397 2013-Jun-08 04:54 07 54 51.71 -49 47 47.8 15.77 0.00074432474442 0.6874997 81.7974 /T 98.1610 98.1607 235.1741 -45.0157 2013-Jun-08 04:55 07 53 00.37 -49 44 38.2 15.78 0.00074461060068 0.7378946 81.5686 /T 98.3897 98.3895 235.2828 -45.1914 2013-Jun-08 04:56 07 51 09.37 -49 41 22.2 15.79 0.00074491665747 0.7882286 81.3402 /T 98.6182 98.6179 235.3932 -45.3669 2013-Jun-08 04:57 07 49 18.71 -49 37 59.7 15.80 0.00074524288958 0.8384978 81.1120 /T 98.8464 98.8461 235.5054 -45.5421 2013-Jun-08 04:58 07 47 28.42 -49 34 30.8 15.82 0.00074558927015 0.8886980 80.8842 /T 99.0742 99.0739 235.6193 -45.7170 2013-Jun-08 04:59 07 45 38.49 -49 30 55.5 15.83 0.00074595577072 0.9388253 80.6567 /T 99.3017 99.3014 235.7351 -45.8917 2013-Jun-08 05:00 07 43 48.95 -49 27 14.1 15.84 0.00074634236127 0.9888758 80.4295 /T 99.5289 99.5286 235.8526 -46.0660 $$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: "n.a." in output means quantity "not available" at the print-time. R.A._(ICRF/J2000.0)_DEC = J2000.0 astrometric right ascension and declination of target center. Adjusted for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) 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 delta deldot = Range ("delta") and range-rate ("delta-dot") of target center with respect to the observer at the instant light seen by the observer at print-time would have left the target center (print-time minus down-leg light-time); the distance traveled by a light ray emanating from the center of the target and recorded by the observer at print-time. "deldot" is a projection of the velocity vector along this ray, the light-time-corrected line-of-sight from the coordinate center, and indicates relative motion. A positive "deldot" means the target center is moving away from the observer (coordinate center). A negative "deldot" means the target center is moving toward the observer. Units: AU and KM/S S-O-T /r = Sun-Observer-Target angle; target's apparent solar elongation seen from observer location at print-time. If negative, the target center is behind the Sun. Angular units: DEGREES. The '/r' column is a Sun-relative code, output for observing sites with defined rotation models only. /T indicates target trails Sun (evening sky) /L indicates target leads Sun (morning sky) NOTE: The S-O-T solar elongation angle is the total separation in any direction. It does not indicate the angle of Sun leading or trailing. S-T-O phi PAB-LON PAB-LAT = "S-T-O" is the Sun->Target->Observer angle; the measurable interior vertex angle at target center formed by a vector to the apparent center of the Sun at reflection time on the target and a vector to the observer at print-time. "phi" is the PHASE ANGLE at the observer's location at print time. The difference with S-T-O is due to down-leg stellar aberration affecting apparent target position but not apparent solar illumination direction. When computing phase, Horizons uses "phi", not "S-T-O". "PAB-LON" and "PAB-LAT" are the J2000 ecliptic longitude and latitude of the phase angle bisector direction; the outward directed angle bisecting the arc created by the apparent vector from Sun to target center and the astrometric vector from observer to target center. For an otherwise uniform ellipsoid, the time when its long-axis is perpendicular to the PAB direction approximately corresponds to lightcurve maximum (or maximum brightness) of the body. PAB is discussed in Harris et al., Icarus 57, 251-258 (1984). Units: DEGREES, DEGREES, DEGREES, DEGREES 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 **********************************************************************************************************************************