Predictions for 2009 Apr 21 Occultation of P090421 by Pluto by Richard G. French, Wellesley College dione1.wellesley.edu:/Volumes/dione_raid2/Research/PHOT/programs/P090421_occpred_v4.pro Tue Apr 14 16:28:08 2009 Predictions for the following observatories: SAAO Boyden Pretoria HESS/ATOM Etosha Reunion Key: Pluto Ephemeris : JPL barycentric Pluto/Charon ephemeris and Pluto ephemeris dRA, dDec mas : RA, Dec offsets added to the Pluto Ephemeris in mas Source : Origin of the ephemeris offsets StarPosition : Origin of the adopted star position for a given prediction Distance (km) : Closest approach distance in the sky plane to center of Pluto's shadow Immersion (UTC) : Immersion time at R=1400 km radius Midtime (UTC) : Time at closest approach distance Emersion (UTC) : Emersion time at R=1400 km radius For all predictions for a given observatory: Closest : Closest Distance, at Midtime, to center of Pluto's shadow, in sky plane Furthest : Furthest " " " " " " " " " " " Earliest : Earliest Immersion, Midtime, Emersion Latest : Latest " " " -------------------------------------------------------------------------------------------------- P040921 predictions for SAAO Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 1342 km 23:44:31 23:45:17 23:46:02 USNO B1.0 554 km 23:42:41 23:45:09 23:47:37 Brazil 1249 km 23:47:14 23:48:26 23:49:39 Lowell 3045 km -------- 23:40:01 -------- Lowell2 993 km 23:43:05 23:44:59 23:46:52 Mean 1720 km -------- 23:45:58 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 797 km 23:39:59 23:42:11 23:44:23 USNO B1.0 10 km 23:39:23 23:42:04 23:44:45 Brazil 705 km 23:43:02 23:45:21 23:47:40 Lowell 2500 km -------- 23:36:55 -------- Lowell2 448 km 23:39:20 23:41:53 23:44:25 Mean 1175 km 23:41:25 23:42:52 23:44:19 DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 529 km 23:41:42 23:44:11 23:46:40 USNO B1.0 259 km 23:41:26 23:44:04 23:46:42 Brazil 436 km 23:44:48 23:47:21 23:49:54 Lowell 2231 km -------- 23:38:55 -------- Lowell2 179 km 23:41:14 23:43:53 23:46:33 Mean 907 km 23:42:50 23:44:52 23:46:55 DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 1000 km 23:42:33 23:44:25 23:46:18 USNO B1.0 1788 km -------- 23:44:18 -------- Brazil 1093 km 23:45:55 23:47:35 23:49:15 Lowell 703 km 23:36:50 23:39:09 23:41:29 Lowell2 1349 km 23:43:25 23:44:07 23:44:50 Mean 622 km 23:42:42 23:45:06 23:47:30 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 1631 km -------- 23:40:42 -------- USNO B1.0 2419 km -------- 23:40:35 -------- Brazil 1724 km -------- 23:43:52 -------- Lowell 72 km 23:32:45 23:35:26 23:38:07 Lowell2 1980 km -------- 23:40:24 -------- Mean 1253 km 23:40:12 23:41:23 23:42:35 Distance Closest 10 km Furthest 3045 km Immersion Midtime Emersion Earliest 23:32:45 23:35:26 23:38:07 Latest 23:47:14 23:48:26 23:49:54 ---------------------------------------------------------------------------------------------------------- P040921 predictions for Boyden Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 1818 km -------- 23:44:51 -------- USNO B1.0 1031 km 23:42:56 23:44:44 23:46:32 Brazil 1725 km -------- 23:48:00 -------- Lowell 3522 km -------- 23:39:37 -------- Lowell2 1469 km -------- 23:44:33 -------- Mean 2196 km -------- 23:45:32 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 1274 km 23:40:40 23:41:47 23:42:53 USNO B1.0 486 km 23:39:09 23:41:39 23:44:09 Brazil 1181 km 23:43:30 23:44:55 23:46:21 Lowell 2978 km -------- 23:36:32 -------- Lowell2 925 km 23:39:28 23:41:28 23:43:29 Mean 1652 km -------- 23:42:27 -------- DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 1005 km 23:41:55 23:43:46 23:45:38 USNO B1.0 217 km 23:41:00 23:43:39 23:46:17 Brazil 912 km 23:44:54 23:46:55 23:48:56 Lowell 2709 km -------- 23:38:32 -------- Lowell2 656 km 23:41:06 23:43:28 23:45:50 Mean 1383 km 23:44:03 23:44:27 23:44:52 DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 524 km 23:41:32 23:44:00 23:46:29 USNO B1.0 1311 km 23:42:57 23:43:53 23:44:48 Brazil 617 km 23:44:45 23:47:09 23:49:33 Lowell 1180 km 23:37:19 23:38:45 23:40:11 Lowell2 873 km 23:41:37 23:43:42 23:45:47 Mean 146 km 23:42:02 23:44:41 23:47:20 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 1154 km 23:38:47 23:40:18 23:41:49 USNO B1.0 1942 km -------- 23:40:10 -------- Brazil 1247 km 23:42:14 23:43:27 23:44:39 Lowell 549 km 23:32:36 23:35:03 23:37:31 Lowell2 1503 km -------- 23:40:00 -------- Mean 776 km 23:38:46 23:40:59 23:43:12 Distance Closest 146 km Furthest 3522 km Immersion Midtime Emersion Earliest 23:32:36 23:35:03 23:37:31 Latest 23:44:54 23:48:00 23:49:33 ---------------------------------------------------------------------------------------------------------- P040921 predictions for Pretoria Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 2199 km -------- 23:44:52 -------- USNO B1.0 1412 km -------- 23:44:44 -------- Brazil 2106 km -------- 23:48:00 -------- Lowell 3903 km -------- 23:39:38 -------- Lowell2 1850 km -------- 23:44:33 -------- Mean 2577 km -------- 23:45:32 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 1655 km -------- 23:41:47 -------- USNO B1.0 867 km 23:39:34 23:41:40 23:43:45 Brazil 1562 km -------- 23:44:56 -------- Lowell 3358 km -------- 23:36:33 -------- Lowell2 1306 km 23:40:31 23:41:29 23:42:26 Mean 2033 km -------- 23:42:28 -------- DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 1386 km 23:43:24 23:43:47 23:44:09 USNO B1.0 598 km 23:41:14 23:43:39 23:46:04 Brazil 1293 km 23:45:54 23:46:55 23:47:56 Lowell 3089 km -------- 23:38:32 -------- Lowell2 1037 km 23:41:41 23:43:28 23:45:16 Mean 1764 km -------- 23:44:27 -------- DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 143 km 23:41:21 23:44:00 23:46:39 USNO B1.0 930 km 23:41:53 23:43:53 23:45:52 Brazil 236 km 23:44:31 23:47:09 23:49:46 Lowell 1561 km -------- 23:38:46 -------- Lowell2 492 km 23:41:13 23:43:42 23:46:12 Mean 235 km 23:42:04 23:44:41 23:47:19 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 773 km 23:38:05 23:40:19 23:42:32 USNO B1.0 1561 km -------- 23:40:11 -------- Brazil 866 km 23:41:22 23:43:27 23:45:33 Lowell 930 km 23:33:05 23:35:04 23:37:04 Lowell2 1123 km 23:38:25 23:40:01 23:41:36 Mean 395 km 23:38:26 23:41:00 23:43:33 Distance Closest 143 km Furthest 3903 km Immersion Midtime Emersion Earliest 23:33:05 23:35:04 23:37:04 Latest 23:45:54 23:48:00 23:49:46 ---------------------------------------------------------------------------------------------------------- P040921 predictions for HESS/ATOM Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 2124 km -------- 23:46:41 -------- USNO B1.0 1336 km 23:45:45 23:46:33 23:47:21 Brazil 2034 km -------- 23:49:50 -------- Lowell 3822 km -------- 23:41:24 -------- Lowell2 1774 km -------- 23:46:22 -------- Mean 2502 km -------- 23:47:21 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 1576 km -------- 23:43:35 -------- USNO B1.0 789 km 23:41:15 23:43:27 23:45:40 Brazil 1486 km -------- 23:46:45 -------- Lowell 3275 km -------- 23:38:18 -------- Lowell2 1227 km 23:41:59 23:43:17 23:44:34 Mean 1955 km -------- 23:44:16 -------- DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 1309 km 23:44:39 23:45:35 23:46:32 USNO B1.0 522 km 23:42:58 23:45:28 23:47:57 Brazil 1219 km 23:47:26 23:48:45 23:50:04 Lowell 3008 km -------- 23:40:19 -------- Lowell2 960 km 23:43:20 23:45:17 23:47:14 Mean 1688 km -------- 23:46:16 -------- DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 219 km 23:43:11 23:45:50 23:48:28 USNO B1.0 1007 km 23:43:50 23:45:42 23:47:34 Brazil 309 km 23:46:22 23:48:59 23:51:36 Lowell 1479 km -------- 23:40:33 -------- Lowell2 569 km 23:43:04 23:45:31 23:47:58 Mean 160 km 23:43:51 23:46:30 23:49:10 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 853 km 23:39:59 23:42:07 23:44:14 USNO B1.0 1641 km -------- 23:41:59 -------- Brazil 943 km 23:43:17 23:45:16 23:47:15 Lowell 845 km 23:34:41 23:36:50 23:38:58 Lowell2 1203 km 23:40:26 23:41:48 23:43:10 Mean 475 km 23:40:16 23:42:48 23:45:19 Distance Closest 160 km Furthest 3822 km Immersion Midtime Emersion Earliest 23:34:41 23:36:50 23:38:58 Latest 23:47:26 23:49:50 23:51:36 ---------------------------------------------------------------------------------------------------------- P040921 predictions for Etosha Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 2615 km -------- 23:46:53 -------- USNO B1.0 1827 km -------- 23:46:46 -------- Brazil 2525 km -------- 23:50:02 -------- Lowell 4313 km -------- 23:41:37 -------- Lowell2 2265 km -------- 23:46:35 -------- Mean 2994 km -------- 23:47:34 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 2067 km -------- 23:43:48 -------- USNO B1.0 1279 km 23:42:35 23:43:40 23:44:45 Brazil 1978 km -------- 23:46:57 -------- Lowell 3765 km -------- 23:38:32 -------- Lowell2 1717 km -------- 23:43:30 -------- Mean 2446 km -------- 23:44:29 -------- DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 1800 km -------- 23:45:48 -------- USNO B1.0 1012 km 23:43:50 23:45:40 23:47:31 Brazil 1711 km -------- 23:48:57 -------- Lowell 3498 km -------- 23:40:32 -------- Lowell2 1451 km -------- 23:45:30 -------- Mean 2179 km -------- 23:46:29 -------- DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 272 km 23:43:25 23:46:02 23:48:40 USNO B1.0 516 km 23:43:25 23:45:55 23:48:24 Brazil 182 km 23:46:32 23:49:11 23:51:51 Lowell 1970 km -------- 23:40:46 -------- Lowell2 78 km 23:43:03 23:45:44 23:48:24 Mean 651 km 23:44:21 23:46:43 23:49:05 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 363 km 23:39:44 23:42:20 23:44:55 USNO B1.0 1151 km 23:40:41 23:42:12 23:43:44 Brazil 452 km 23:42:57 23:45:29 23:48:01 Lowell 1335 km 23:36:15 23:37:03 23:37:51 Lowell2 712 km 23:39:43 23:42:01 23:44:20 Mean 16 km 23:40:20 23:43:00 23:45:41 Distance Closest 16 km Furthest 4313 km Immersion Midtime Emersion Earliest 23:36:15 23:37:03 23:37:51 Latest 23:46:32 23:50:02 23:51:51 ---------------------------------------------------------------------------------------------------------- P040921 predictions for Reunion Pluto Ephemeris dRA dDec mas Source StarPosition Distance Immersion Midtime Emersion ---------------------------------------------------------------------------------------------------------- DE-413 Plu017 + ( 0.0, 0.0) mas DE-413+PLU-017 2MASS 3257 km -------- 23:40:30 -------- USNO B1.0 2470 km -------- 23:40:22 -------- Brazil 3156 km -------- 23:43:36 -------- Lowell 4974 km -------- 23:35:20 -------- Lowell2 2909 km -------- 23:40:11 -------- Mean 3633 km -------- 23:41:10 -------- DE-413 Plu017 + ( -69.0, 30.0) mas DE418 2MASS 2720 km -------- 23:37:27 -------- USNO B1.0 1933 km -------- 23:37:19 -------- Brazil 2619 km -------- 23:40:33 -------- Lowell 4436 km -------- 23:32:17 -------- Lowell2 2372 km -------- 23:37:09 -------- Mean 3097 km -------- 23:38:07 -------- DE-413 Plu017 + ( -22.0, 38.0) mas PHOT07 2MASS 2446 km -------- 23:39:25 -------- USNO B1.0 1659 km -------- 23:39:17 -------- Brazil 2345 km -------- 23:42:31 -------- Lowell 4163 km -------- 23:34:15 -------- Lowell2 2098 km -------- 23:39:07 -------- Mean 2823 km -------- 23:40:05 -------- DE-413 Plu017 + ( -11.0, 105.0) mas PHOT08 2MASS 917 km 23:37:38 23:39:38 23:41:37 USNO B1.0 130 km 23:36:52 23:39:30 23:42:07 Brazil 816 km 23:40:36 23:42:44 23:44:52 Lowell 2634 km -------- 23:34:28 -------- Lowell2 569 km 23:36:55 23:39:20 23:41:44 Mean 1293 km 23:39:18 23:40:18 23:41:19 DE-413 Plu017 + ( -94.0, 140.0) mas Sicardy 2MASS 296 km 23:33:24 23:35:58 23:38:33 USNO B1.0 492 km 23:33:22 23:35:50 23:38:18 Brazil 195 km 23:36:28 23:39:05 23:41:41 Lowell 2012 km -------- 23:30:49 -------- Lowell2 53 km 23:33:02 23:35:40 23:38:18 Mean 672 km 23:34:20 23:36:39 23:38:57 Distance Closest 53 km Furthest 4974 km Immersion Midtime Emersion Earliest 23:33:02 23:30:49 23:38:18 Latest 23:40:36 23:43:36 23:44:52 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