******************************************************************************* JPL/HORIZONS 19P/Borrelly 2009-Jun-19 07:35:57 Rec #:900294 (+COV) Soln.date: 2009-May-22_14:45:29 # obs: 1716 (1995-2009) FK5/J2000.0 helio. ecliptic osc. elements (AU, DAYS, DEG, period=Julian yrs): EPOCH= 2454952.5 != 2009-May-01.0000000 (CT) Residual RMS= .78043 EC= .6245174835769504 QR= 1.354579797681858 TP= 2454669.836061985 OM= 75.43853832613597 W= 353.3709151134168 IN= 30.32381150435739 A= 3.607570894607717 MA= 40.65857630772 ADIST= 5.860561991533576 PER= 6.8522076267248 N= .143840692 ANGMOM= .025517959 DAN= 1.35807 DDN= 5.79611 L= 69.70990190000001 B= -3.3413662 TP= 2008-Jul-22.3360620 Physical & non-grav parameters (KM, SEC; A1,A2,A3=AU/d^2; DT=days): GM= n.a. RAD= 2.4 A1= 2.231008E-9 A2= -3.811592D-10 A3= n.a. DT= n.a. M1= 9. M2= 13.8 k1= 14. k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#K073/10, data arc: 1995-Mar-19 to 2009-May-17 2: k1=14., k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Jun 19 07:35:58 2009 Pasadena, USA / Horizons ******************************************************************************* Target body name: 19P/Borrelly {source: JPL#K073/10} Center body name: Earth (399) {source: DE405} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2009-Mar-20 00:00:00.0000 UT Stop time : A.D. 2009-Jun-12 00:00:00.0000 UT Step-size : 1440 minutes ******************************************************************************* Target pole/equ : No model available Target radii : 2.4 km Center geodetic : .000000000,.000000000,.00000000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: .000000000,.000000000,.00000000 {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} Interfering body: MOON (Req= 1737.400) km {source: DE405} Deflecting body : Sun, EARTH {source: DE405} Deflecting GMs : 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.090618.p090909 EOP coverage : DATA-BASED 1962-JAN-20 TO 2009-JUN-18. PREDICTS-> 2009-SEP-08 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= 2454952.5 != 2009-May-01.0000000 (CT) Residual RMS= .78043 EC= .6245174835769504 QR= 1.354579797681858 TP= 2454669.836061985 OM= 75.43853832613597 W= 353.3709151134168 IN= 30.32381150435739 Comet physical & dynamic parameters (KM, SEC; A1,A2,A3=AU/d^2; DT=days): GM= n.a. RAD= 2.4 A1= 2.231008E-9 A2= -3.811592D-10 A3= n.a. DT= n.a. M1= 9. M2= 13.8 k1= 14. k2= 5. PHCOF= .030 ******************************************************************************************************************************* Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC T-mag N-mag SN.ang SN.dist delta deldot S-O-T /r S-T-O ******************************************************************************************************************************* $$SOE 2009-Mar-20 00:00 13 22 45.98 +39 56 45.2 16.61 17.89 31.36 0.00 1.95059104892566 10.6229487 135.8267 /L 14.5953 2009-Mar-21 00:00 13 21 29.72 +40 00 01.1 16.63 17.90 29.49 0.00 1.95683296136440 10.9932397 135.8925 /L 14.5448 2009-Mar-22 00:00 13 20 12.93 +40 02 54.6 16.65 17.91 27.61 0.00 1.96328904709249 11.3645923 135.9331 /L 14.5013 2009-Mar-23 00:00 13 18 55.71 +40 05 25.4 16.68 17.92 25.73 0.00 1.96995985274040 11.7367738 135.9483 /L 14.4649 2009-Mar-24 00:00 13 17 38.14 +40 07 33.3 16.70 17.93 23.85 0.00 1.97684578680202 12.1095380 135.9383 /L 14.4354 2009-Mar-25 00:00 13 16 20.31 +40 09 18.3 16.72 17.95 21.98 0.00 1.98394711091979 12.4826220 135.9030 /L 14.4128 2009-Mar-26 00:00 13 15 02.31 +40 10 40.2 16.74 17.96 20.11 0.00 1.99126392948801 12.8557440 135.8428 /L 14.3969 2009-Mar-27 00:00 13 13 44.22 +40 11 39.0 16.77 17.97 18.25 0.00 1.99879617876954 13.2286041 135.7577 /L 14.3877 2009-Mar-28 00:00 13 12 26.14 +40 12 14.6 16.79 17.99 16.40 0.00 2.00654361759288 13.6008889 135.6481 /L 14.3850 2009-Mar-29 00:00 13 11 08.16 +40 12 27.1 16.81 18.00 14.56 0.00 2.01450582217570 13.9722812 135.5142 /L 14.3886 2009-Mar-30 00:00 13 09 50.36 +40 12 16.4 16.84 18.01 12.73 0.00 2.02268218734493 14.3424724 135.3565 /L 14.3984 2009-Mar-31 00:00 13 08 32.82 +40 11 42.7 16.86 18.03 10.92 0.00 2.03107193532035 14.7111754 135.1753 /L 14.4141 2009-Apr-01 00:00 13 07 15.63 +40 10 46.1 16.88 18.04 9.12 0.00 2.03967413167928 15.0781365 134.9711 /L 14.4356 2009-Apr-02 00:00 13 05 58.88 +40 09 26.8 16.91 18.06 7.35 0.00 2.04848770676749 15.4431421 134.7444 /L 14.4626 2009-Apr-03 00:00 13 04 42.64 +40 07 44.9 16.93 18.07 5.59 0.00 2.05751148015253 15.8060222 134.4957 /L 14.4950 2009-Apr-04 00:00 13 03 26.98 +40 05 40.8 16.96 18.09 3.85 0.00 2.06674418575124 16.1666499 134.2256 /L 14.5324 2009-Apr-05 00:00 13 02 11.99 +40 03 14.6 16.98 18.11 2.14 0.00 2.07618449564072 16.5249371 133.9345 /L 14.5747 2009-Apr-06 00:00 13 00 57.72 +40 00 26.6 17.00 18.12 0.45 0.00 2.08583104088171 16.8808285 133.6232 /L 14.6215 2009-Apr-07 00:00 12 59 44.25 +39 57 17.2 17.03 18.14 358.78 0.00 2.09568242781847 17.2342922 133.2922 /T 14.6726 2009-Apr-08 00:00 12 58 31.63 +39 53 46.6 17.05 18.16 357.14 0.00 2.10573724846757 17.5853085 132.9421 /T 14.7277 2009-Apr-09 00:00 12 57 19.93 +39 49 55.2 17.08 18.18 355.52 0.00 2.11599408409492 17.9338578 132.5736 /T 14.7867 2009-Apr-10 00:00 12 56 09.21 +39 45 43.4 17.10 18.19 353.93 0.00 2.12645150204245 18.2799100 132.1873 /T 14.8491 2009-Apr-11 00:00 12 54 59.52 +39 41 11.4 17.13 18.21 352.36 0.00 2.13710804707939 18.6234161 131.7839 /T 14.9148 2009-Apr-12 00:00 12 53 50.91 +39 36 19.7 17.15 18.23 350.82 0.00 2.14796222952585 18.9643056 131.3639 /T 14.9835 2009-Apr-13 00:00 12 52 43.44 +39 31 08.6 17.18 18.25 349.31 0.00 2.15901251270682 19.3024868 130.9281 /T 15.0548 2009-Apr-14 00:00 12 51 37.15 +39 25 38.5 17.20 18.27 347.83 0.00 2.17025730187158 19.6378510 130.4771 /T 15.1286 2009-Apr-15 00:00 12 50 32.08 +39 19 49.7 17.23 18.28 346.37 0.00 2.18169493581220 19.9702776 130.0115 /T 15.2045 2009-Apr-16 00:00 12 49 28.28 +39 13 42.8 17.25 18.30 344.94 0.00 2.19332368143281 20.2996391 129.5320 /T 15.2824 2009-Apr-17 00:00 12 48 25.79 +39 07 18.0 17.28 18.32 343.54 0.00 2.20514173076679 20.6258043 129.0391 /T 15.3618 2009-Apr-18 00:00 12 47 24.65 +39 00 35.8 17.30 18.34 342.17 0.00 2.21714719946010 20.9486398 128.5336 /T 15.4427 2009-Apr-19 00:00 12 46 24.89 +38 53 36.6 17.33 18.36 340.83 0.00 2.22933812555493 21.2680100 128.0160 /T 15.5248 2009-Apr-20 00:00 12 45 26.55 +38 46 20.9 17.36 18.38 339.51 0.00 2.24171246740918 21.5837741 127.4869 /T 15.6077 2009-Apr-21 00:00 12 44 29.66 +38 38 49.0 17.38 18.40 338.22 0.00 2.25426809976473 21.8957826 126.9469 /T 15.6914 2009-Apr-22 00:00 12 43 34.24 +38 31 01.4 17.41 18.42 336.96 0.00 2.26700280737601 22.2038727 126.3965 /T 15.7755 2009-Apr-23 00:00 12 42 40.33 +38 22 58.5 17.43 18.44 335.72 0.00 2.27991427633715 22.5078652 125.8364 /T 15.8598 2009-Apr-24 00:00 12 41 47.94 +38 14 40.8 17.46 18.46 334.51 0.00 2.29300008435957 22.8075644 125.2669 /T 15.9443 2009-Apr-25 00:00 12 40 57.10 +38 06 08.7 17.48 18.48 333.32 0.00 2.30625769260459 23.1027640 124.6888 /T 16.0285 2009-Apr-26 00:00 12 40 07.83 +37 57 22.7 17.51 18.50 332.17 0.00 2.31968444274226 23.3932591 124.1025 /T 16.1124 2009-Apr-27 00:00 12 39 20.15 +37 48 23.2 17.54 18.52 331.03 0.00 2.33327756287850 23.6788644 123.5084 /T 16.1958 2009-Apr-28 00:00 12 38 34.06 +37 39 10.7 17.56 18.54 329.93 0.00 2.34703418427136 23.9594328 122.9070 /T 16.2785 2009-Apr-29 00:00 12 37 49.58 +37 29 45.6 17.59 18.56 328.84 0.00 2.36095136768039 24.2348690 122.2988 /T 16.3604 2009-Apr-30 00:00 12 37 06.72 +37 20 08.6 17.61 18.58 327.78 0.00 2.37502613517433 24.5051342 121.6843 /T 16.4413 2009-May-01 00:00 12 36 25.48 +37 10 19.9 17.64 18.60 326.75 0.00 2.38925550185733 24.7702416 121.0637 /T 16.5210 2009-May-02 00:00 12 35 45.87 +37 00 20.1 17.67 18.62 325.73 0.00 2.40363650280383 25.0302451 120.4376 /T 16.5995 2009-May-03 00:00 12 35 07.88 +36 50 09.7 17.69 18.64 324.75 0.00 2.41816621267517 25.2852256 119.8062 /T 16.6767 2009-May-04 00:00 12 34 31.51 +36 39 49.0 17.72 18.66 323.78 0.00 2.43284175766478 25.5352786 119.1699 /T 16.7523 2009-May-05 00:00 12 33 56.76 +36 29 18.6 17.74 18.68 322.83 0.00 2.44766032071275 25.7805037 118.5290 /T 16.8264 2009-May-06 00:00 12 33 23.63 +36 18 38.8 17.77 18.70 321.91 0.00 2.46261914128973 26.0209958 117.8839 /T 16.8987 2009-May-07 00:00 12 32 52.09 +36 07 50.2 17.80 18.72 321.00 0.00 2.47771551090481 26.2568392 117.2348 /T 16.9693 2009-May-08 00:00 12 32 22.15 +35 56 53.0 17.82 18.74 320.12 0.00 2.49294676529692 26.4881023 116.5819 /T 17.0380 2009-May-09 00:00 12 31 53.80 +35 45 47.6 17.85 18.76 319.25 0.00 2.50831027425475 26.7148341 115.9257 /T 17.1048 2009-May-10 00:00 12 31 27.01 +35 34 34.5 17.87 18.78 318.41 0.00 2.52380343014558 26.9370637 115.2662 /T 17.1695 2009-May-11 00:00 12 31 01.80 +35 23 14.0 17.90 18.80 317.58 0.00 2.53942363634739 27.1548006 114.6037 /T 17.2322 2009-May-12 00:00 12 30 38.13 +35 11 46.4 17.93 18.82 316.77 0.00 2.55516829670593 27.3680374 113.9386 /T 17.2927 2009-May-13 00:00 12 30 15.99 +35 00 12.2 17.95 18.84 315.98 0.00 2.57103480682460 27.5767535 113.2709 /T 17.3509 2009-May-14 00:00 12 29 55.39 +34 48 31.5 17.98 18.86 315.21 0.00 2.58702054751238 27.7809190 112.6009 /T 17.4069 2009-May-15 00:00 12 29 36.29 +34 36 44.8 18.00 18.88 314.45 0.00 2.60312288019901 27.9804971 111.9288 /T 17.4605 2009-May-16 00:00 12 29 18.69 +34 24 52.3 18.03 18.89 313.71 0.00 2.61933914369352 28.1754463 111.2548 /T 17.5117 2009-May-17 00:00 12 29 02.57 +34 12 54.4 18.06 18.91 312.98 0.00 2.63566665137417 28.3657199 110.5791 /T 17.5605 2009-May-18 00:00 12 28 47.92 +34 00 51.3 18.08 18.93 312.27 0.00 2.65210268776644 28.5512642 109.9018 /T 17.6067 2009-May-19 00:00 12 28 34.71 +33 48 43.4 18.11 18.95 311.58 0.00 2.66864450350255 28.7320148 109.2232 /T 17.6504 2009-May-20 00:00 12 28 22.95 +33 36 30.8 18.13 18.97 310.90 0.00 2.68528930791644 28.9078924 108.5433 /T 17.6916 2009-May-21 00:00 12 28 12.60 +33 24 14.0 18.16 18.99 310.23 0.00 2.70203425913715 29.0787986 107.8623 /T 17.7302 2009-May-22 00:00 12 28 03.66 +33 11 53.0 18.18 19.01 309.58 0.00 2.71887645264634 29.2446150 107.1805 /T 17.7661 2009-May-23 00:00 12 27 56.10 +32 59 28.3 18.21 19.03 308.94 0.00 2.73581291086605 29.4052084 106.4978 /T 17.7993 2009-May-24 00:00 12 27 49.92 +32 47 00.0 18.24 19.05 308.31 0.00 2.75284057801530 29.5604442 105.8145 /T 17.8299 2009-May-25 00:00 12 27 45.09 +32 34 28.4 18.26 19.07 307.70 0.00 2.76995632517727 29.7102079 105.1308 /T 17.8577 2009-May-26 00:00 12 27 41.59 +32 21 53.9 18.29 19.08 307.10 0.00 2.78715696896468 29.8544292 104.4466 /T 17.8828 2009-May-27 00:00 12 27 39.41 +32 09 16.5 18.31 19.10 306.51 0.00 2.80443930300745 29.9931008 103.7622 /T 17.9052 2009-May-28 00:00 12 27 38.53 +31 56 36.6 18.34 19.12 305.93 0.00 2.82180013641043 30.1262831 103.0777 /T 17.9249 2009-May-29 00:00 12 27 38.93 +31 43 54.4 18.36 19.14 305.36 0.00 2.83923633042204 30.2540935 102.3931 /T 17.9418 2009-May-30 00:00 12 27 40.58 +31 31 10.1 18.39 19.16 304.80 0.00 2.85674482573669 30.3766859 101.7086 /T 17.9560 2009-May-31 00:00 12 27 43.47 +31 18 24.0 18.41 19.17 304.26 0.00 2.87432265708469 30.4942286 101.0242 /T 17.9675 2009-Jun-01 00:00 12 27 47.57 +31 05 36.3 18.44 19.19 303.72 0.00 2.89196695617483 30.6068868 100.3399 /T 17.9763 2009-Jun-02 00:00 12 27 52.87 +30 52 47.2 18.46 19.21 303.20 0.00 2.90967494649735 30.7148118 99.6559 /T 17.9824 2009-Jun-03 00:00 12 27 59.33 +30 39 56.8 18.49 19.23 302.68 0.00 2.92744393371898 30.8181365 98.9722 /T 17.9858 2009-Jun-04 00:00 12 28 06.94 +30 27 05.4 18.51 19.24 302.17 0.00 2.94527129436977 30.9169733 98.2889 /T 17.9865 2009-Jun-05 00:00 12 28 15.68 +30 14 13.1 18.54 19.26 301.67 0.00 2.96315446427347 31.0114153 97.6059 /T 17.9845 2009-Jun-06 00:00 12 28 25.52 +30 01 20.1 18.56 19.28 301.18 0.00 2.98109092728412 31.1015359 96.9233 /T 17.9800 2009-Jun-07 00:00 12 28 36.45 +29 48 26.5 18.59 19.30 300.70 0.00 2.99907820447891 31.1873906 96.2412 /T 17.9728 2009-Jun-08 00:00 12 28 48.44 +29 35 32.4 18.61 19.31 300.23 0.00 3.01711384389729 31.2690175 95.5596 /T 17.9629 2009-Jun-09 00:00 12 29 01.49 +29 22 38.1 18.64 19.33 299.76 0.00 3.03519541100981 31.3464392 94.8785 /T 17.9505 2009-Jun-10 00:00 12 29 15.55 +29 09 43.6 18.66 19.35 299.31 0.00 3.05332048017750 31.4196643 94.1979 /T 17.9355 2009-Jun-11 00:00 12 29 30.63 +28 56 49.1 18.68 19.36 298.85 0.00 3.07148662732180 31.4886899 93.5179 /T 17.9179 2009-Jun-12 00:00 12 29 46.70 +28 43 54.6 18.71 19.38 298.41 0.00 3.08969142385008 31.5535036 92.8385 /T 17.8978 $$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. The uniform Coordinate Time scale is used internally. 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. Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) 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 SN.ang SN.ds = Target sub-solar point position angle (CCW, or east, with respect to the direction of the true-of-date Celestial North Pole) and its' angular distance from the sub-observer point (center of disk) at print time. Negative distance indicates sub-solar point on hidden hemisphere. Units: DEGREES and ARCSECONDS 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 = Sun-Target-Observer (~ PHASE ANGLE) angle: the vertex angle at target center formed by a vector to the apparent center of the Sun and a vector intersecting the observer at print-time. This measurable angle is within 20 arcseconds (0.006 deg) of the reduced PHASE ANGLE at observer's location at print time. The difference is due to down-leg stellar aberration affecting measured target position but not apparent solar illumination direction. When computing phase, Horizons uses the true phase angle, not S-T-O, but the resulting difference in illuminated fraction is less than 0.001%. 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 (via browser) telnet ssd.jpl.nasa.gov 6775 (via command-line) Author : Jon.Giorgini@jpl.nasa.gov *******************************************************************************************************************************