2019-07-27, GMT 08 download

Object Data Page

Results

******************************************************************************* Ephemeris / WWW_USER Sat Jul 27 06:00:31 2019 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2019 OK) {source: JPL#4} Center body name: Earth (399) {source: DE431} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2019-Jul-25 00:00:00.0000 UT Stop time : A.D. 2019-Jul-25 02:00:00.0000 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 positive} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE431} Rel. light bend : Sun, EARTH {source: DE431} Rel. lght bnd GM: 1.3271E+11, 3.9860E+05 km^3/s^2 Small-body perts: Yes {source: SB431-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL EOP file : eop.190726.p191017 EOP coverage : DATA-BASED 1962-JAN-20 TO 2019-JUL-26. PREDICTS-> 2019-OCT-16 Units conversion: 1 au= 149597870.700 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 ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2458672.5 ! 2019-Jul-08.00 (TDB) Residual RMS= .42447 EC= .7619872751368464 QR= .4634788350177913 TP= 2458736.7868181239 OM= 302.2618921731477 W= 104.2554444596127 IN= 1.400862958612186 Equivalent ICRF heliocentric equatorial cartesian coordinates (au, au/d): X= 4.187348396942357E-01 Y=-1.073928859891318E+00 Z=-4.728620123005824E-01 VX= 7.400356338490750E-03 VY= 1.487833660473926E-02 VZ= 6.850330078667683E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 23.265 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 ******************************************************************************************************* $$SOE 2019-Jul-25 00:00 22 54 12.06 -30 44 18.5 9.64 0.00092684766573 -20.9082863 142.6215 /L 37.3463 2019-Jul-25 00:01 22 55 38.07 -30 48 32.9 9.63 0.00091847538479 -20.8396195 142.3076 /L 37.6602 2019-Jul-25 00:02 22 57 05.78 -30 52 48.4 9.62 0.00091013103091 -20.7690403 141.9880 /L 37.9799 2019-Jul-25 00:03 22 58 35.25 -30 57 04.7 9.61 0.00090181538403 -20.6964843 141.6624 /L 38.3056 2019-Jul-25 00:04 23 00 06.52 -31 01 21.8 9.60 0.00089352925045 -20.6218844 141.3307 /L 38.6373 2019-Jul-25 00:05 23 01 39.63 -31 05 39.6 9.59 0.00088527346384 -20.5451712 140.9928 /L 38.9753 2019-Jul-25 00:06 23 03 14.63 -31 09 58.0 9.58 0.00087704888622 -20.4662727 140.6485 /L 39.3196 2019-Jul-25 00:07 23 04 51.58 -31 14 16.7 9.57 0.00086885640907 -20.3851142 140.2977 /L 39.6705 2019-Jul-25 00:08 23 06 30.52 -31 18 35.7 9.56 0.00086069695429 -20.3016182 139.9402 /L 40.0281 2019-Jul-25 00:09 23 08 11.50 -31 22 54.7 9.55 0.00085257147543 -20.2157047 139.5758 /L 40.3926 2019-Jul-25 00:10 23 09 54.58 -31 27 13.7 9.54 0.00084448095880 -20.1272903 139.2044 /L 40.7640 2019-Jul-25 00:11 23 11 39.81 -31 31 32.2 9.53 0.00083642642462 -20.0362892 138.8257 /L 41.1427 2019-Jul-25 00:12 23 13 27.25 -31 35 50.3 9.52 0.00082840892829 -19.9426119 138.4397 /L 41.5288 2019-Jul-25 00:13 23 15 16.95 -31 40 07.6 9.51 0.00082042956166 -19.8461661 138.0462 /L 41.9224 2019-Jul-25 00:14 23 17 08.97 -31 44 23.9 9.50 0.00081248945419 -19.7468562 137.6449 /L 42.3238 2019-Jul-25 00:15 23 19 03.37 -31 48 38.9 9.49 0.00080458977446 -19.6445831 137.2356 /L 42.7331 2019-Jul-25 00:16 23 21 00.22 -31 52 52.4 9.48 0.00079673173144 -19.5392444 136.8182 /L 43.1505 2019-Jul-25 00:17 23 22 59.56 -31 57 04.0 9.47 0.00078891657587 -19.4307341 136.3925 /L 43.5763 2019-Jul-25 00:18 23 25 01.47 -32 01 13.4 9.46 0.00078114560170 -19.3189427 135.9583 /L 44.0106 2019-Jul-25 00:19 23 27 06.02 -32 05 20.4 9.45 0.00077342014759 -19.2037569 135.5153 /L 44.4536 2019-Jul-25 00:20 23 29 13.25 -32 09 24.4 9.44 0.00076574159834 -19.0850598 135.0634 /L 44.9056 2019-Jul-25 00:21 23 31 23.25 -32 13 25.1 9.43 0.00075811138637 -18.9627307 134.6023 /L 45.3667 2019-Jul-25 00:22 23 33 36.08 -32 17 22.2 9.42 0.00075053099333 -18.8366449 134.1319 /L 45.8373 2019-Jul-25 00:23 23 35 51.80 -32 21 15.1 9.41 0.00074300195162 -18.7066740 133.6518 /L 46.3174 2019-Jul-25 00:24 23 38 10.49 -32 25 03.3 9.40 0.00073552584592 -18.5726857 133.1619 /L 46.8074 2019-Jul-25 00:25 23 40 32.21 -32 28 46.5 9.40 0.00072810431477 -18.4345436 132.6619 /L 47.3074 2019-Jul-25 00:26 23 42 57.04 -32 32 23.9 9.39 0.00072073905216 -18.2921077 132.1517 /L 47.8177 2019-Jul-25 00:27 23 45 25.04 -32 35 55.2 9.38 0.00071343180906 -18.1452338 131.6309 /L 48.3386 2019-Jul-25 00:28 23 47 56.29 -32 39 19.6 9.37 0.00070618439501 -17.9937740 131.0993 /L 48.8702 2019-Jul-25 00:29 23 50 30.85 -32 42 36.5 9.37 0.00069899867966 -17.8375765 130.5567 /L 49.4128 2019-Jul-25 00:30 23 53 08.80 -32 45 45.2 9.36 0.00069187659421 -17.6764860 130.0029 /L 49.9667 2019-Jul-25 00:31 23 55 50.20 -32 48 45.1 9.35 0.00068482013296 -17.5103434 129.4376 /L 50.5321 2019-Jul-25 00:32 23 58 35.13 -32 51 35.3 9.35 0.00067783135464 -17.3389863 128.8605 /L 51.1093 2019-Jul-25 00:33 00 01 23.65 -32 54 15.1 9.34 0.00067091238376 -17.1622491 128.2714 /L 51.6984 2019-Jul-25 00:34 00 04 15.83 -32 56 43.6 9.34 0.00066406541196 -16.9799628 127.6700 /L 52.2998 2019-Jul-25 00:35 00 07 11.74 -32 59 00.0 9.33 0.00065729269904 -16.7919562 127.0562 /L 52.9138 2019-Jul-25 00:36 00 10 11.44 -33 01 03.3 9.33 0.00065059657410 -16.5980553 126.4296 /L 53.5404 2019-Jul-25 00:37 00 13 14.98 -33 02 52.5 9.32 0.00064397943640 -16.3980840 125.7900 /L 54.1801 2019-Jul-25 00:38 00 16 22.43 -33 04 26.6 9.32 0.00063744375615 -16.1918648 125.1371 /L 54.8330 2019-Jul-25 00:39 00 19 33.85 -33 05 44.7 9.32 0.00063099207503 -15.9792187 124.4708 /L 55.4993 2019-Jul-25 00:40 00 22 49.27 -33 06 45.4 9.31 0.00062462700660 -15.7599662 123.7908 /L 56.1794 2019-Jul-25 00:41 00 26 08.76 -33 07 27.7 9.31 0.00061835123642 -15.5339279 123.0969 /L 56.8734 2019-Jul-25 00:42 00 29 32.35 -33 07 50.5 9.31 0.00061216752192 -15.3009249 122.3888 /L 57.5816 2019-Jul-25 00:43 00 33 00.08 -33 07 52.3 9.31 0.00060607869200 -15.0607798 121.6663 /L 58.3041 2019-Jul-25 00:44 00 36 31.98 -33 07 32.0 9.31 0.00060008764630 -14.8133173 120.9292 /L 59.0413 2019-Jul-25 00:45 00 40 08.07 -33 06 48.2 9.31 0.00059419735406 -14.5583655 120.1773 /L 59.7932 2019-Jul-25 00:46 00 43 48.37 -33 05 39.5 9.31 0.00058841085270 -14.2957566 119.4105 /L 60.5601 2019-Jul-25 00:47 00 47 32.89 -33 04 04.6 9.32 0.00058273124591 -14.0253280 118.6286 /L 61.3421 2019-Jul-25 00:48 00 51 21.63 -33 02 02.0 9.32 0.00057716170126 -13.7469237 117.8314 /L 62.1394 2019-Jul-25 00:49 00 55 14.58 -32 59 30.1 9.32 0.00057170544739 -13.4603954 117.0187 /L 62.9520 2019-Jul-25 00:50 00 59 11.72 -32 56 27.6 9.33 0.00056636577060 -13.1656040 116.1906 /L 63.7803 2019-Jul-25 00:51 01 03 13.02 -32 52 52.9 9.33 0.00056114601092 -12.8624208 115.3468 /L 64.6241 2019-Jul-25 00:52 01 07 18.44 -32 48 44.5 9.34 0.00055604955756 -12.5507293 114.4873 /L 65.4836 2019-Jul-25 00:53 01 11 27.93 -32 44 00.9 9.35 0.00055107984371 -12.2304268 113.6121 /L 66.3589 2019-Jul-25 00:54 01 15 41.42 -32 38 40.5 9.36 0.00054624034080 -11.9014257 112.7212 /L 67.2499 2019-Jul-25 00:55 01 19 58.83 -32 32 41.9 9.37 0.00054153455190 -11.5636558 111.8145 /L 68.1567 2019-Jul-25 00:56 01 24 20.08 -32 26 03.5 9.38 0.00053696600458 -11.2170654 110.8921 /L 69.0791 2019-Jul-25 00:57 01 28 45.06 -32 18 43.9 9.39 0.00053253824295 -10.8616236 109.9541 /L 70.0172 2019-Jul-25 00:58 01 33 13.65 -32 10 41.7 9.40 0.00052825481908 -10.4973221 109.0006 /L 70.9707 2019-Jul-25 00:59 01 37 45.72 -32 01 55.6 9.42 0.00052411928354 -10.1241765 108.0317 /L 71.9396 2019-Jul-25 01:00 01 42 21.11 -31 52 24.2 9.43 0.00052013517550 -9.7422286 107.0477 /L 72.9237 2019-Jul-25 01:01 01 46 59.67 -31 42 06.3 9.45 0.00051630601185 -9.3515476 106.0488 /L 73.9227 2019-Jul-25 01:02 01 51 41.23 -31 31 00.9 9.47 0.00051263527586 -8.9522320 105.0353 /L 74.9363 2019-Jul-25 01:03 01 56 25.58 -31 19 06.9 9.49 0.00050912640515 -8.5444111 104.0074 /L 75.9643 2019-Jul-25 01:04 02 01 12.54 -31 06 23.5 9.51 0.00050578277915 -8.1282460 102.9655 /L 77.0061 2019-Jul-25 01:05 02 06 01.87 -30 52 49.8 9.53 0.00050260770601 -7.7039309 101.9102 /L 78.0616 2019-Jul-25 01:06 02 10 53.37 -30 38 25.3 9.56 0.00049960440914 -7.2716942 100.8417 /L 79.1301 2019-Jul-25 01:07 02 15 46.78 -30 23 09.5 9.58 0.00049677601347 -6.8317987 99.7607 /L 80.2111 2019-Jul-25 01:08 02 20 41.87 -30 07 02.1 9.61 0.00049412553145 -6.3845424 98.6677 /L 81.3042 2019-Jul-25 01:09 02 25 38.36 -29 50 03.0 9.64 0.00049165584894 -5.9302584 97.5633 /L 82.4087 2019-Jul-25 01:10 02 30 36.01 -29 32 12.3 9.67 0.00048936971125 -5.4693144 96.4482 /L 83.5239 2019-Jul-25 01:11 02 35 34.52 -29 13 30.1 9.70 0.00048726970927 -5.0021126 95.3229 /L 84.6492 2019-Jul-25 01:12 02 40 33.64 -28 53 57.1 9.74 0.00048535826588 -4.5290882 94.1884 /L 85.7837 2019-Jul-25 01:13 02 45 33.08 -28 33 33.7 9.78 0.00048363762300 -4.0507082 93.0454 /L 86.9269 2019-Jul-25 01:14 02 50 32.56 -28 12 20.9 9.81 0.00048210982912 -3.5674699 91.8946 /L 88.0777 2019-Jul-25 01:15 02 55 31.79 -27 50 19.7 9.86 0.00048077672760 -3.0798985 90.7370 /L 89.2354 2019-Jul-25 01:16 03 00 30.50 -27 27 31.3 9.90 0.00047963994604 -2.5885445 89.5734 /L 90.3990 2019-Jul-25 01:17 03 05 28.41 -27 03 57.2 9.94 0.00047870088651 -2.0939812 88.4048 /L 91.5677 2019-Jul-25 01:18 03 10 25.25 -26 39 39.0 9.99 0.00047796071717 -1.5968016 87.2321 /L 92.7405 2019-Jul-25 01:19 03 15 20.75 -26 14 38.4 10.04 0.00047742036505 -1.0976146 86.0562 /L 93.9164 2019-Jul-25 01:20 03 20 14.65 -25 48 57.5 10.09 0.00047708051031 -0.5970417 84.8782 /L 95.0945 2019-Jul-25 01:21 03 25 06.70 -25 22 38.3 10.14 0.00047694158201 -0.0957131 83.6990 /L 96.2738 2019-Jul-25 01:22 03 29 56.65 -24 55 43.1 10.20 0.00047700375537 0.4057361 82.5196 /L 97.4532 2019-Jul-25 01:23 03 34 44.29 -24 28 14.2 10.25 0.00047726695070 0.9066702 81.3410 /L 98.6319 2019-Jul-25 01:24 03 39 29.39 -24 00 14.2 10.31 0.00047773083387 1.4064568 80.1642 /L 99.8087 2019-Jul-25 01:25 03 44 11.74 -23 31 45.5 10.37 0.00047839481844 1.9044706 78.9902 /L 100.9827 2019-Jul-25 01:26 03 48 51.15 -23 02 50.9 10.44 0.00047925806934 2.4000973 77.8200 /L 102.1530 2019-Jul-25 01:27 03 53 27.44 -22 33 32.9 10.50 0.00048031950805 2.8927377 76.6545 /L 103.3186 2019-Jul-25 01:28 03 58 00.46 -22 03 54.3 10.57 0.00048157781925 3.3818106 75.4946 /L 104.4785 2019-Jul-25 01:29 04 02 30.03 -21 33 57.9 10.64 0.00048303145883 3.8667565 74.3413 /L 105.6319 2019-Jul-25 01:30 04 06 56.04 -21 03 46.2 10.71 0.00048467866312 4.3470402 73.1954 /L 106.7779 2019-Jul-25 01:31 04 11 18.36 -20 33 22.2 10.78 0.00048651745922 4.8221537 72.0577 /L 107.9157 2019-Jul-25 01:32 04 15 36.87 -20 02 48.3 10.86 0.00048854567630 5.2916184 70.9291 /L 109.0444 2019-Jul-25 01:33 04 19 51.48 -19 32 07.3 10.93 0.00049076095783 5.7549866 69.8102 /L 110.1633 2019-Jul-25 01:34 04 24 02.12 -19 01 21.7 11.01 0.00049316077434 6.2118437 68.7019 /L 111.2717 2019-Jul-25 01:35 04 28 08.71 -18 30 34.0 11.09 0.00049574243680 6.6618088 67.6047 /L 112.3689 2019-Jul-25 01:36 04 32 11.20 -17 59 46.6 11.17 0.00049850311041 7.1045355 66.5193 /L 113.4544 2019-Jul-25 01:37 04 36 09.55 -17 29 01.7 11.25 0.00050143982853 7.5397127 65.4463 /L 114.5274 2019-Jul-25 01:38 04 40 03.72 -16 58 21.6 11.34 0.00050454950677 7.9670641 64.3862 /L 115.5876 2019-Jul-25 01:39 04 43 53.68 -16 27 48.4 11.43 0.00050782895700 8.3863485 63.3395 /L 116.6343 2019-Jul-25 01:40 04 47 39.44 -15 57 24.0 11.51 0.00051127490123 8.7973588 62.3066 /L 117.6673 2019-Jul-25 01:41 04 51 20.98 -15 27 10.3 11.60 0.00051488398523 9.1999213 61.2879 /L 118.6861 2019-Jul-25 01:42 04 54 58.31 -14 57 09.0 11.69 0.00051865279167 9.5938950 60.2838 /L 119.6903 2019-Jul-25 01:43 04 58 31.45 -14 27 21.7 12. 0.00052257785295 9.9791698 59.2945 /L 120.6797 2019-Jul-25 01:44 05 02 00.42 -13 57 49.9 12. 0.00052665566344 10.3556655 58.3202 /L 121.6540 2019-Jul-25 01:45 05 05 25.25 -13 28 35.0 12. 0.00053088269104 10.7233303 57.3613 /L 122.6129 2019-Jul-25 01:46 05 08 45.97 -12 59 38.2 12. 0.00053525538821 11.0821386 56.4178 /L 123.5565 2019-Jul-25 01:47 05 12 02.62 -12 31 00.7 12. 0.00053977020231 11.4320901 55.4899 /L 124.4844 2019-Jul-25 01:48 05 15 15.25 -12 02 43.4 12. 0.00054442358521 11.7732072 54.5778 /L 125.3967 2019-Jul-25 01:49 05 18 23.91 -11 34 47.3 12. 0.00054921200216 12.1055339 53.6813 /L 126.2932 2019-Jul-25 01:50 05 21 28.65 -11 07 13.2 12. 0.00055413194004 12.4291336 52.8006 /L 127.1739 2019-Jul-25 01:51 05 24 29.54 -10 40 01.7 13. 0.00055917991476 12.7440875 51.9357 /L 128.0389 2019-Jul-25 01:52 05 27 26.62 -10 13 13.4 13. 0.00056435247807 13.0504928 51.0865 /L 128.8882 2019-Jul-25 01:53 05 30 19.96 -09 46 48.9 13. 0.00056964622363 13.3484609 50.2530 /L 129.7218 2019-Jul-25 01:54 05 33 09.63 -09 20 48.6 13. 0.00057505779241 13.6381161 49.4350 /L 130.5398 2019-Jul-25 01:55 05 35 55.69 -08 55 12.8 13. 0.00058058387747 13.9195936 48.6326 /L 131.3423 2019-Jul-25 01:56 05 38 38.21 -08 30 01.8 13. 0.00058622122814 14.1930384 47.8454 /L 132.1295 2019-Jul-25 01:57 05 41 17.26 -08 05 15.8 13. 0.00059196665359 14.4586038 47.0735 /L 132.9015 2019-Jul-25 01:58 05 43 52.91 -07 40 54.8 13. 0.00059781702588 14.7164500 46.3167 /L 133.6584 2019-Jul-25 01:59 05 46 25.23 -07 16 59.1 13. 0.00060376928250 14.9667429 45.5746 /L 134.4005 2019-Jul-25 02:00 05 48 54.28 -06 53 28.5 13. 0.00060982042845 15.2096529 44.8473 /L 135.1279 $$EOE ******************************************************************************************************* Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 by introduction of integer leap-seconds for 1972 and later. Conversion from the internal Barycentric Dynamical Time (TDB) to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion on Earth regardless of where the observer is located in the solar system. For example, if an observation from the surface of another body has an output time-tag of 12:31:00 UT, it refers to a time-scale conversion from TDB to UT valid at the center of the Earth at that instant, not the observer's location elsewhere in the solar system, where clock rates may differ slightly due to the local gravity field and there is no precisely defined or adopted "UT" analog. 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. NOTE: "n.a." in output means quantity "not available" at the print-time. R.A._(ICRF/J2000.0)_DEC = Astrometric right ascension and declination of the TARGET CENTER with respect to the observing site in the coordinates of the ICRF/J2000 inertial reference frame. Compensated for down-leg light-time. Units: RA in hours-minutes-seconds of time (HH MM SS.ff), DEC in angular degrees-minutes-seconds (DD MM SS.f) APmag = Asteroid's approximate apparent visual magnitude from the standard IAU H-G magnitude relationship: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2). For solar phase angles > 90 deg, the error could exceed 1 magnitude. For phase angles > 120 degrees, output values are rounded to the nearest integer to indicate error could be large and unknown. Units: MAGNITUDE 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 the observer location at print-time. Angular units: DEGREES The '/r' column indicates the target's apparent position relative to the Sun in the observer's sky, as described below: For an observing location on the surface of a rotating body (considering its rotational sense): /T indicates target TRAILS Sun (evening sky; rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky; rises and sets BEFORE Sun) For an observing point NOT on a rotating body (such as a spacecraft), the "leading" and "trailing" condition is defined by the observer's heliocentric orbital motion: if continuing in the observer's current direction of heliocentric motion would encounter the target's apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. If the Sun's apparent longitude would be encountered first, followed by the target's, the target TRAILS the Sun. NOTE: The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which are defined in the equator of a spherical coordinate system. S-T-O = "S-T-O" is the Sun->Target->Observer angle; the interior vertex angle at target center formed by a vector to the apparent center of the Sun at reflection time on the target and the apparent vector to the observer at print-time. Slightly different from true PHASE ANGLE (requestable separately) at the few arcsecond level in that it includes stellar aberration on the down-leg from target to observer. 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.D.Giorgini@jpl.nasa.gov *******************************************************************************************************