Ephemeris Generator Ephemeris Settings Target Body: Comet 10P/Tempel 2 = (1988 XIV) [1988.75] Observer Location: Geocentric [Code=500] From: A.D. 1988-06-10 06:12 UT To: A.D. 1988-12-18 23:56 Step: 5 day Format: Calendar Date and Time Output Quantities: 2-3,9,19-20,23-24 Ref. Frame, RA/Dec Format: J2000, HMS Apparent Coordinates Model: Airless ------------------------------------------------------------------------------------------------------------------------------------------------- HORIZONS Generated Ephemeris ******************************************************************************* Ephemeris / WWW_USER Sun Jul 25 09:47:21 1999 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: Tempel 2 {source: JPL#26-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1988-Jun-10 06:12:00.0000 UT Stop time : A.D. 1988-Dec-18 23:56:00.0000 UT Step-size : 7200 minutes ******************************************************************************* Center geodetic : 0.000000, 0.000000, 0.00000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.00000, 0.000, 0.000 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : Standard Earth Model {East-longitude +} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target pole/equ : No model available Target radii : 5.3 km Target primary : Sun {source: DE-0406LE-0406} Interfering body: MOON (Req= 1737.400) km {source: DE-0406LE-0406} Deflecting body : Sun, EARTH {source: DE-0406LE-0406} Deflecting GMs : 1.3271E+11, 3.9860E+05 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Units conversion: 1 AU= 149597870.691 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs : Elevation (-90deg=NO ), Airmass (>38.0000=NO), Daylight (NO ) ******************************************************************************* Initial heliocentric osc. elements wrt ecliptic and mean equinox of J2000.0: EPOCH= 2447440.5 != 1988-Oct-06.0000000 (TDB) EC= .544428994 QR= 1.383426338 TP= 2447421.2340589 OM= 119.7922182 W= 191.0643826 IN= 12.4281776 Comet physical & dynamic parameters: GM= n.a. RAD= 5.3 A1= 3.81D-10 A2= 1.4D-11 M1= 9. M2= 14.5 k1= 12.5 k2= 5. PHCOF= .030 ************************************************************************************************************************************************* Date__(UT)__HR:MN R.A.__(a-apparent)__DEC dRA*cosD d(DEC)/dt T-mag N-mag r rdot delta deldot S-O-T S-T-O ************************************************************************************************************************************************* 1988-Jun-10 06:12 15 37 49.15 +03 06 14.0 -33.39 -16.25 11.43 15.76 1.7198793942 -9.93709 0.7877077741 -3.93728 144.7753 19.9043 1988-Jun-15 06:12 15 33 38.71 +02 27 48.1 -28.89 -22.17 11.31 15.77 1.6915047742 -9.71452 0.7782349785 -2.64605 140.7068 22.3506 1988-Jun-20 06:12 15 30 10.39 +01 37 44.6 -22.94 -27.84 11.20 15.79 1.6638111899 -9.46538 0.7722892510 -1.49695 136.5334 24.8422 1988-Jun-25 06:12 15 27 34.35 +00 36 44.2 -15.89 -33.10 11.11 15.82 1.6368776330 -9.18810 0.7694482161 -0.49520 132.3707 27.3050 1988-Jun-30 06:12 15 25 58.15 -00 34 17.5 -8.06 -37.85 11.02 15.86 1.6107875992 -8.88114 0.7692982025 0.37010 128.2976 29.6870 1988-Jul-05 06:12 15 25 26.78 -01 54 17.7 0.30 -42.07 10.94 15.90 1.5856288448 -8.54309 0.7714793695 1.12344 124.3655 31.9526 1988-Jul-10 06:12 15 26 04.11 -03 22 13.6 9.09 -45.77 10.87 15.94 1.5614930033 -8.17269 0.7756913728 1.77665 120.6106 34.0758 1988-Jul-15 06:12 15 27 53.14 -04 57 01.1 18.12 -48.92 10.80 15.98 1.5384750420 -7.76889 0.7816437473 2.32929 117.0597 36.0374 1988-Jul-20 06:12 15 30 55.31 -06 37 30.1 27.18 -51.47 10.75 16.02 1.5166725427 -7.33095 0.7890570680 2.79124 113.7294 37.8266 1988-Jul-25 06:12 15 35 10.72 -08 22 30.0 36.09 -53.43 10.70 16.07 1.4961847890 -6.85845 0.7976975406 3.18325 110.6257 39.4401 1988-Jul-30 06:12 15 40 38.42 -10 10 51.8 44.70 -54.83 10.65 16.11 1.4771116514 -6.35141 0.8074031783 3.53470 107.7461 40.8799 1988-Aug-04 06:12 15 47 17.04 -12 01 29.4 53.05 -55.70 10.62 16.15 1.4595522727 -5.81032 0.8181032017 3.87478 105.0833 42.1496 1988-Aug-09 06:12 15 55 06.13 -13 53 19.8 61.18 -56.04 10.59 16.19 1.4436035673 -5.23624 0.8297756384 4.20765 102.6308 43.2510 1988-Aug-14 06:12 16 04 05.16 -15 45 15.8 69.03 -55.79 10.57 16.23 1.4293585629 -4.63082 0.8423993218 4.53451 100.3832 44.1860 1988-Aug-19 06:12 16 14 13.16 -17 36 04.5 76.50 -54.92 10.55 16.27 1.4169046255 -3.99632 0.8559691627 4.86502 98.3324 44.9589 1988-Aug-24 06:12 16 25 28.64 -19 24 30.9 83.53 -53.41 10.55 16.31 1.4063216247 -3.33567 0.8705167053 5.21467 96.4666 45.5761 1988-Aug-29 06:12 16 37 49.32 -21 09 17.7 90.06 -51.25 10.56 16.35 1.3976801122 -2.65239 0.8861287333 5.60635 94.7705 46.0456 1988-Sep-03 06:12 16 51 13.11 -22 49 06.8 96.18 -48.45 10.57 16.39 1.3910395966 -1.95059 0.9029513541 6.05231 93.2279 46.3739 1988-Sep-08 06:12 17 05 38.01 -24 22 40.4 101.85 -44.99 10.60 16.43 1.3864470027 -1.23487 0.9211281862 6.54244 91.8256 46.5651 1988-Sep-13 06:12 17 21 01.06 -25 48 38.6 107.00 -40.87 10.63 16.47 1.3839354014 -0.51019 0.9407765541 7.07099 90.5512 46.6243 1988-Sep-18 06:12 17 37 18.07 -27 05 43.9 111.53 -36.12 10.68 16.52 1.3835230853 0.21819 0.9620066590 7.63829 89.3909 46.5586 1988-Sep-23 06:12 17 54 23.25 -28 12 46.1 115.32 -30.82 10.74 16.57 1.3852130467 0.94496 0.9849380833 8.25105 88.3280 46.3773 1988-Sep-28 06:12 18 12 09.38 -29 08 43.8 118.36 -25.07 10.80 16.62 1.3889928912 1.66481 1.0097217865 8.92288 87.3436 46.0907 1988-Oct-03 06:12 18 30 28.99 -29 52 48.3 120.71 -18.96 10.88 16.67 1.3948351927 2.37265 1.0365293905 9.64960 86.4190 45.7076 1988-Oct-08 06:12 18 49 13.97 -30 24 24.8 122.34 -12.62 10.97 16.73 1.4026982681 3.06373 1.0654924410 10.41310 85.5388 45.2348 1988-Oct-13 06:12 19 08 15.52 -30 43 14.1 123.24 -6.20 11.08 16.79 1.4125273223 3.73373 1.0966989631 11.20172 84.6890 44.6806 1988-Oct-18 06:12 19 27 24.40 -30 49 15.8 123.38 0.15 11.19 16.86 1.4242558943 4.37889 1.1302110776 12.00943 83.8557 44.0542 1988-Oct-23 06:12 19 46 31.09 -30 42 48.3 122.79 6.27 11.30 16.92 1.4378075208 4.99605 1.1660862764 12.83976 83.0235 43.3659 1988-Oct-28 06:12 20 05 26.93 -30 24 24.6 121.60 12.06 11.43 16.99 1.4530975281 5.58269 1.2044028442 13.70015 82.1766 42.6256 1988-Nov-02 06:12 20 24 04.89 -29 54 50.3 119.95 17.44 11.57 17.07 1.4700348695 6.13692 1.2452342276 14.57777 81.3011 41.8405 1988-Nov-07 06:12 20 42 19.32 -29 14 59.6 117.92 22.33 11.71 17.14 1.4885239315 6.65745 1.2886015907 15.45386 80.3871 41.0161 1988-Nov-12 06:12 21 00 05.97 -28 25 53.9 115.60 26.67 11.86 17.22 1.5084662470 7.14358 1.3344804844 16.31524 79.4270 40.1578 1988-Nov-17 06:12 21 17 21.56 -27 28 41.0 113.03 30.44 12.01 17.31 1.5297620615 7.59511 1.3828171291 17.15604 78.4144 39.2715 1988-Nov-22 06:12 21 34 03.73 -26 24 30.5 110.29 33.64 12.17 17.39 1.5523117213 8.01230 1.4335592620 17.98289 77.3423 38.3630 1988-Nov-27 06:12 21 50 11.57 -25 14 28.5 107.49 36.31 12.33 17.47 1.5760168645 8.39576 1.4866764375 18.79978 76.2036 37.4372 1988-Dec-02 06:12 22 05 45.28 -23 59 36.6 104.72 38.48 12.49 17.56 1.6007814119 8.74645 1.5421218741 19.59224 74.9937 36.4964 1988-Dec-07 06:12 22 20 45.93 -22 40 50.8 102.03 40.21 12.66 17.64 1.6265123618 9.06554 1.5998012212 20.34457 73.7110 35.5417 1988-Dec-12 06:12 22 35 15.07 -21 19 03.6 99.43 41.51 12.83 17.73 1.6531203987 9.35438 1.6595802738 21.04481 72.3561 34.5745 1988-Dec-17 06:12 22 49 14.13 -19 55 04.6 96.91 42.42 13.00 17.81 1.6805203357 9.61448 1.7213031662 21.69209 70.9300 33.5967 ************************************************************************************************************************************************* Column meaning: TIME Prior to 1972, 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. The TDB uniform time scale is used internally. Conversion between TDB 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._(a-apparent)__DEC. = Airless apparent right ascension and declination of the target with respect to the Earth true-equator and the meridian containing the Earth true equinox of date. Corrected for light-time, gravitational deflection of light, stellar aberration, precession & nutation. Units:HMS (HH MM SS.ff) and DMS (DD MM SS.f) dRA*cosD d(DEC)/dt = The rate of change of target apparent RA and DEC (airless). d(RA)/dt is multiplied by the cosine of the declination. Units: ARCSECONDS PER HOUR T-mag N-mag = Comet's approximate apparent visual total magnitude ("T-mag") and nuclear magnitude ("N-mag") by following definitions: T-mag = M1 + 5*log10(delta) + k1*log10(r) N-mag = M2 + 5*log10(delta) + k2*log10(r) + phcof*beta Units: none r rdot = Target apparent heliocentric range ("r") and range-rate ("rdot") as seen by observer. Units: AU and KM/S delta deldot = Target apparent range ("delta") and range-rate ("delta-dot") relative to observer. Units: AU and KM/S S-O-T = 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. Units: DEGREES S-T-O = Sun-Target-Observer angle; target's apparent PHASE ANGLE as seen at observer's location at print time. Units: 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 e-mail : horizons@ssd.jpl.nasa.gov ************************************************************************************************************************************************* ------------------------------------------------------------------------------------------------------------------------------------------------- Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 1999 June 30 13:42