RECON TNO event watchlist

This table lists the candidates for TNO occultation for the next two years that are visible from the entire network. Green lines have cross-track errors less than 1000 km. Yellow lines are below 2000 km. Orange lines are below 3000 km. Red lines are below 6000 km.

This list was last updated at 2019/02/19 19:17:03 UT

Idx ET Desig Vmag Since
(yrs)
TNO pos err Diam
(5%)
Diam
(30%)
DES Classification StarID RA Dec mag minsep selong RECON Prob
183014 2019 Mar 12 11:48:27 01FM194 23.1 3.9 0.38 183 75 SCATNEAR GA0920:03915264 14:32:29.9 +02:24:44 15.0 0.02 134 1.0 5.1%
324259 2019 Mar 12 12:23:46 523700 21.6 1.4 0.07 229 94 3:2E+6:4II GA1120:08445774 19:24:55.7 +22:04:01 15.7 0.23 65 1.0 18.7%
357314 2019 Mar 17 08:38:59 487581 22.2 3.0 0.30 479 195 SCATNEAR GA1000:03508106 11:19:39.0 +11:07:35 13.6 0.23 168 1.0 5.1%
184110 2019 Mar 26 03:29:19 15875 21.9 1.3 0.32 240 98 3:2E GA1160:01382919 05:33:24.0 +27:41:31 15.7 0.03 79 1.0 15.4%
183087 2019 Mar 29 06:15:36 02CT154 23.5 0.9 0.37 220 90 CLASSICAL GA0880:04057267 12:33:32.5 -01:42:51 13.1 0.02 178 1.0 7.1%
329803 2019 May 08 10:20:00 470309 21.0 0.7 0.07 240 98 CENTAURR GA0920:05365261 17:39:15.3 +03:18:56 15.9 0.29 136 1.0 14.1%
196847 2019 Jun 14 08:29:02 11MM4 22.7 1.7 0.35 77 32 CENTAURR GA1640:01140776 11:04:06.6 +75:28:41 15.4 0.24 66 1.0 3.4%
326856 2019 Jul 11 06:59:37 503858 23.9 1.5 0.29 105 43 3:2E GA0760:16665207 18:40:14.6 -13:25:20 15.6 0.28 167 1.0 16.1%
357230 2019 Sep 04 06:47:58 13NL24 22.4 1.3 0.06 136 56 CENTAURR GA0780:22029697 22:33:31.6 -11:22:20 15.6 0.29 174 1.0 28.5%
321219 2019 Sep 11 09:51:50 15874 21.3 1.2 0.16 525 214 SCATNEAR GA0960:00698380 05:17:51.6 +07:09:17 12.5 0.10 89 1.0 9.3%
220027 2019 Sep 16 08:50:23 13UG17 24.5 0.4 0.09 133 54 CLASSICAL GA0960:00130906 01:30:38.7 +07:16:27 12.0 0.18 149 1.0 19.2%
322162 2019 Sep 21 11:22:34 14YG50 22.7 1.0 0.08 225 92 3:2E GA1140:02942103 07:49:02.0 +24:45:17 15.6 0.10 63 1.0 30.5%
344653 2019 Oct 09 11:36:25 202421 20.3 0.3 0.09 1202 491 SCATEXTD GA1220:00154686 00:53:03.2 +33:47:07 12.5 0.03 152 1.0 17.2%
219640 2019 Oct 16 11:55:18 03UP292 22.1 1.2 0.06 212 87 2:1E UC4-618-021057 05:14:58.8 +33:30:41 15.7 0.08 122 1.0 29.8%
224754 2019 Nov 05 12:22:08 341275 20.7 4.1 0.85 115 47 CENTAURR GA1360:03412264 05:43:28.4 +46:33:31 12.1 0.10 131 1.0 10.3%
314930 2019 Nov 06 02:32:50 11WG157 22.2 1.1 0.09 211 86 1:1 GA1300:01101853 03:29:02.1 +41:01:36 15.8 0.12 153 1.0 25.5%
224239 2019 Nov 06 08:14:08 181855 23.1 1.2 0.20 209 85 SCATEXTD GA1300:02065362 04:52:18.7 +40:03:39 13.7 0.01 143 1.0 17.5%
1031743 2019 Nov 07 03:42:56 03QX90 23.2 0.2 0.25 286 117 CLASSICAL GA0760:24279566 22:24:18.4 -13:25:44 10.6 0.21 109 1.0 6.2%
338281 2019 Nov 13 07:53:46 8405 22.7 0.4 0.17 91 37 CENTAURR GA1300:02664517 05:20:15.2 +40:51:48 15.7 0.15 144 1.0 17.1%
222476 2019 Nov 13 10:20:44 03UV292 23.1 4.0 0.40 211 86 3:2E GA1060:01244331 05:45:54.4 +17:43:38 15.8 0.10 144 1.0 8.7%
310854 2019 Nov 17 08:28:43 54598 19.2 0.1 0.05 191 78 CENTAURR GA1320:01656196 04:09:20.5 +43:35:33 15.9 0.17 154 1.0 27.7%
222794 2019 Nov 21 08:27:27 04TE282 23.1 4.4 0.33 130 53 CENTAURR GA1260:01995883 05:23:40.7 +36:04:07 14.3 0.08 153 1.0 16.4%
223071 2019 Nov 22 09:05:58 06QG181 24.2 4.3 0.31 95 39 CENTAURR GA1160:01172587 05:17:02.5 +27:59:13 13.1 0.08 159 1.0 13.0%
302120 2019 Nov 22 09:29:20 06QG181 24.2 4.3 0.31 95 39 CENTAURR GA1160:01172587 05:17:02.5 +27:59:13 13.1 0.08 159 1.0 13.0%
222816 2019 Nov 24 09:27:26 04VK78 23.6 1.2 0.17 143 59 2:1E GA1120:00757551 04:43:19.7 +22:23:23 14.7 0.17 169 1.0 18.2%
223117 2019 Nov 26 05:22:02 06UX184 22.0 1.1 0.12 106 43 CENTAURR GA1320:01719293 04:14:13.4 +43:26:35 14.7 0.20 157 1.0 11.2%
223081 2019 Nov 27 11:17:25 06QJ181 22.0 2.9 0.14 246 100 3:1EE+3:1II GA1060:01488798 05:58:20.9 +16:26:12 14.6 0.04 154 1.0 10.8%
228456 2019 Nov 28 04:31:10 504555 21.6 0.4 0.20 347 142 3:2E GA0860:00211619 02:37:36.9 -02:04:24 13.2 0.19 147 1.0 26.1%
314168 2019 Dec 01 05:18:28 12UP177 24.2 1.2 0.14 144 59 SCATEXTD GA1180:00340600 02:24:14.8 +29:21:19 14.0 0.03 151 1.0 20.2%
229375 2019 Dec 08 07:22:26 04TE282 23.1 4.4 0.33 130 53 CENTAURR GA1260:01956401 05:21:24.7 +36:06:08 15.6 0.03 166 1.0 18.9%
310875 2019 Dec 13 08:15:02 54598 19.2 0.1 0.05 191 78 CENTAURR UC4-667-021829 04:01:55.1 +43:18:32 15.4 0.16 154 1.0 49.5%
249316 2019 Dec 18 06:56:03 12UE178 22.7 5.2 0.74 365 149 CLASSICAL GA1100:00677843 04:39:37.9 +20:47:17 15.8 0.29 165 1.0 6.0%
234228 2019 Dec 18 07:42:26 463368 21.0 2.3 0.21 209 85 CENTAURR GA1080:01429369 05:51:51.9 +19:09:19 9.5 0.01 175 1.0 18.9%
333089 2019 Dec 18 11:02:50 98WV31 24.0 1.2 0.20 145 59 3:2E GA1140:00873958 04:55:00.1 +24:19:38 15.0 0.20 169 1.0 10.9%
1016535 2019 Dec 22 09:20:20 15VD166 24.7 1.2 0.26 80 33 2:1E GA1080:00429422 03:47:52.5 +19:12:07 14.2 0.15 149 1.0 6.7%
1037892 2019 Dec 27 02:53:43 03QK91 23.2 2.5 0.25 223 91 SCATNEAR GA0840:19940971 22:37:07.0 -04:52:17 15.0 0.17 64 1.0 3.3%
322652 2019 Dec 28 05:03:25 505679 22.4 1.5 0.16 437 178 SCATNEAR GA1120:00383547 03:15:50.8 +23:53:33 15.4 0.10 137 1.0 19.3%
231917 2019 Dec 31 04:40:46 06SF369 23.0 1.2 0.16 275 112 3:1II GA1000:00552187 04:52:30.2 +11:20:48 15.9 0.11 152 1.0 5.5%
237751 2020 Jan 03 10:00:54 03UV292 23.0 4.0 0.40 211 86 3:2E GA1060:01166351 05:41:14.7 +17:38:12 15.7 0.09 162 1.0 17.7%
322617 2020 Jan 06 02:29:37 523622 22.4 1.1 0.05 302 123 SCATNEAR UC4-498-008820 04:45:27.9 +09:31:54 14.6 0.16 144 1.0 25.1%
239981 2020 Jan 10 10:15:07 248835 21.7 0.4 0.11 76 31 CENTAURR GA1280:01542791 04:42:15.5 +39:35:00 13.3 0.07 142 1.0 44.0%
238704 2020 Jan 13 12:27:36 119315 22.6 2.9 0.85 72 30 CENTAURR GA1300:03773706 07:18:10.3 +40:43:21 15.9 0.07 160 1.0 8.3%
241265 2020 Jan 15 09:50:18 449097 21.1 3.3 0.29 72 30 CENTAURR GA1260:03019228 06:59:27.2 +37:05:53 7.9 0.07 161 1.0 48.9%
238251 2020 Jan 20 02:22:03 05VZ122 22.9 4.0 0.94 205 84 SCATNEAR GA1040:01201893 05:50:40.6 +14:20:50 14.6 0.28 147 1.0 3.8%
237703 2020 Jan 20 03:09:34 02WL21 24.2 4.0 0.32 155 63 CLASSICAL GA1140:02350295 06:34:31.6 +24:31:47 14.9 0.27 159 1.0 7.1%
347895 2020 Feb 06 11:21:00 523768 22.1 0.9 0.07 457 187 3:2E UC4-513-051704 10:14:59.8 +12:33:14 15.4 0.13 166 1.0 14.9%
339256 2020 Feb 29 07:38:15 308634 22.6 3.9 0.20 331 135 CLASSICAL UC4-494-054486 10:14:49.7 +08:44:48 13.8 0.06 172 1.0 6.6%
250521 2020 Mar 16 09:08:54 03YR179 23.5 5.9 0.37 207 85 CLASSICAL GA1100:03149035 09:03:26.7 +21:49:11 14.3 0.23 136 1.0 5.6%
250707 2020 Mar 21 07:00:37 05EZ300 22.7 0.9 0.08 185 76 3:2E GA0760:04765485 13:13:18.5 -12:27:16 15.4 0.25 159 1.0 16.9%
332623 2020 Apr 11 04:19:31 99CC119 23.5 5.9 0.42 222 91 CLASSICAL UC4-424-057059 12:50:27.8 -05:22:46 12.6 0.02 172 1.0 6.7%
321906 2020 Apr 12 04:59:32 14YY49 23.4 0.3 0.07 55 23 CENTAURR UC4-463-030506 07:14:10.7 +02:24:56 13.5 0.13 87 1.0 25.9%
254871 2020 Apr 16 06:53:06 98XY95 22.3 1.1 0.19 328 134 SCATNEAR GA1160:02912335 07:44:46.3 +27:30:14 15.3 0.13 87 1.0 9.8%
324124 2020 Apr 16 10:05:01 523701 22.1 0.8 0.08 209 85 3:2E UC4-369-072902 15:54:21.7 -16:22:45 15.4 0.17 147 1.0 14.3%
257533 2020 Apr 25 10:07:39 438028 22.8 3.8 0.66 159 65 3:2E GA0740:05216442 14:33:43.0 -15:24:09 15.7 0.01 174 1.0 3.3%
329924 2020 Apr 30 09:18:59 470309 21.1 0.7 0.07 240 98 CENTAURR UC4-477-068991 17:51:44.5 +05:14:33 15.4 0.09 126 1.0 10.0%
324510 2020 May 10 07:13:35 523700 21.6 1.4 0.07 229 94 3:2E+6:4II UC4-561-095368 19:38:06.5 +22:02:06 15.7 0.19 103 1.0 29.7%
263628 2020 May 11 09:47:27 07LG38 23.5 3.7 0.33 160 65 5:2EEE GA0920:06627412 18:10:51.3 +02:27:43 15.6 0.26 132 1.0 7.4%
1044330 2020 May 28 08:28:29 14LU28 22.5 1.5 0.12 257 105 SCATNEAR GA0800:06173797 17:25:21.0 -08:33:39 16.0 0.29 160 1.0 10.1%
273810 2020 Jun 15 08:50:36 08JO41 24.6 2.7 0.33 124 51 SCATNEAR GA1080:06226691 18:48:47.9 +18:31:50 15.4 0.11 135 1.0 7.2%
276121 2020 Aug 09 07:41:54 04MU8 22.9 5.7 0.39 361 148 CLASSICAL GA0700:34268426 20:37:08.9 -19:39:39 13.5 0.11 170 1.0 9.8%
323018 2020 Aug 25 06:17:29 10LB136 21.1 0.8 0.05 313 128 3:2E LN01432 19:51:09.0 -17:08:35 10.7 0.18 144 1.0 24.6%
306574 2020 Sep 05 08:22:54 523727 20.1 0.5 0.05 288 118 CENTAURR TYC20556-00038-1 21:46:58.9 +07:10:31 7.8 0.05 158 1.0 28.5%
286477 2020 Sep 16 12:00:38 06QP180 24.4 3.2 0.08 66 27 CENTAURR GA1060:00253317 02:34:51.0 +16:46:44 15.3 0.12 132 1.0 41.3%
1006238 2020 Sep 26 07:37:54 04VU131 23.8 1.2 0.08 190 77 CLASSICAL GA1100:00479298 03:56:50.2 +20:00:02 14.2 0.05 122 1.0 16.7%
357372 2020 Oct 07 05:25:03 499514 21.2 1.6 0.19 725 296 SCATNEAR UC4-518-143188 22:12:16.3 +13:32:43 15.6 0.16 140 1.0 9.5%
301188 2020 Oct 07 05:30:09 499514 21.2 1.6 0.19 725 296 SCATNEAR GA1020:19113774 22:12:16.2 +13:32:43 15.6 0.10 140 1.0 10.4%
322012 2020 Oct 09 12:12:46 14YY49 23.5 0.3 0.07 55 23 CENTAURR UC4-458-039058 07:44:45.1 +01:30:42 15.9 0.09 79 1.0 32.3%
360229 2020 Oct 10 11:18:52 182222 23.2 0.3 0.26 263 107 CLASSICAL UC4-542-014477 05:23:06.6 +18:16:26 14.0 0.01 116 1.0 13.9%
362665 2020 Oct 10 11:23:00 182222 23.2 0.3 0.26 263 107 CLASSICAL GA1080:00985083 05:23:06.6 +18:16:26 13.9 0.02 116 1.0 14.9%
361374 2020 Oct 18 08:15:04 54598 19.3 0.1 0.05 191 78 CENTAURR GA1340:02565141 04:56:42.0 +44:18:49 15.7 0.05 124 1.0 55.6%
311046 2020 Oct 18 08:16:37 54598 19.3 0.1 0.05 191 78 CENTAURR UC4-672-032094 04:56:42.0 +44:18:50 15.6 0.06 124 1.0 61.4%
363957 2020 Oct 21 11:36:22 523597 22.8 0.4 0.06 110 45 CENTAURR GA1080:00204642 01:56:32.2 +19:04:27 15.0 0.16 171 1.0 32.4%
364386 2020 Oct 22 05:04:15 84719 21.0 1.2 0.11 631 258 3:2E+6:4II GA1180:00609253 03:48:31.3 +29:02:24 15.6 0.21 147 1.0 13.0%
362918 2020 Oct 24 07:45:36 03TL58 23.5 3.3 0.25 220 90 CLASSICAL GA1100:02104029 06:28:31.3 +20:33:14 13.8 0.13 114 1.0 18.9%
1003567 2020 Nov 02 04:18:01 181855 23.1 1.2 0.20 209 85 SCATEXTD GA1300:02227286 05:00:33.7 +40:53:52 14.9 0.00 138 1.0 14.2%
1004232 2020 Nov 05 06:36:16 341275 20.7 4.1 0.85 115 47 CENTAURR GA1340:03600450 06:19:47.6 +44:04:01 14.8 0.10 126 1.0 10.3%
1004233 2020 Nov 06 11:41:51 341275 20.7 4.1 0.85 115 47 CENTAURR GA1340:03599350 06:19:37.1 +44:04:53 13.5 0.25 127 1.0 8.3%
1007538 2020 Nov 06 12:28:20 32532 20.4 1.1 0.17 91 37 CENTAURR GA0840:03834430 09:43:56.3 -04:55:38 15.4 0.05 75 1.0 27.2%
1000126 2020 Nov 16 11:16:46 456826 22.5 3.1 0.32 174 71 3:2E+6:4II GA1080:01409383 05:50:41.8 +18:04:48 14.7 0.13 146 1.0 12.1%
1007454 2020 Nov 18 02:51:00 342842 21.0 1.3 0.15 83 34 CENTAURR GA1400:05609634 19:50:04.0 +50:56:20 11.2 0.17 90 1.0 15.2%
1000035 2020 Nov 19 08:47:47 03QB112 23.7 4.4 0.31 188 77 CLASSICAL GA1000:00121746 01:20:49.3 +10:39:30 14.1 0.24 145 1.0 7.8%
1018186 2020 Nov 21 04:01:45 15VK167 25.2 1.2 0.23 76 31 5:3EE GA1060:00403695 03:46:16.1 +16:05:38 11.3 0.29 176 1.0 8.1%
1003453 2020 Nov 27 12:08:48 14DD143 22.6 0.9 0.13 357 146 CLASSICAL GA0880:03992540 11:58:54.0 -00:36:27 12.7 0.20 65 1.0 9.4%
1047897 2020 Nov 29 08:24:34 14XU40 22.4 1.1 0.09 229 94 3:2E GA1120:01114722 05:20:43.1 +22:56:37 15.8 0.16 166 1.0 22.5%
999166 2020 Dec 04 06:08:22 00YV1 23.7 4.3 0.67 219 89 CLASSICAL GA1120:00986953 05:08:48.2 +22:09:35 16.0 0.09 174 1.0 18.5%
1024829 2020 Dec 10 04:39:48 11UC411 22.8 0.4 0.12 151 62 3:2E GA1120:00380043 03:14:30.1 +22:09:13 12.5 0.21 154 1.0 22.0%
1026256 2020 Dec 14 11:29:44 91205 23.7 3.0 0.41 151 62 3:2E GA1060:01189278 05:42:40.2 +16:03:38 14.0 0.05 172 1.0 7.8%
1026410 2020 Dec 19 10:38:05 98XY95 22.1 1.1 0.19 328 134 SCATNEAR GA1160:02968659 08:00:10.4 +27:03:19 14.1 0.11 150 1.0 16.4%
1022994 2020 Dec 23 04:08:14 03YJ179 23.1 8.4 0.84 234 96 CLASSICAL GA1140:01928799 06:09:41.9 +24:42:50 15.1 0.28 179 1.0 7.6%
1028289 2021 Jan 01 06:56:56 98UR43 23.2 1.2 0.32 131 54 3:2E GA1180:01701754 05:42:34.9 +28:17:58 15.5 0.20 165 1.0 14.2%
1038439 2021 Jan 09 03:50:15 10XE91 22.7 1.1 0.06 277 113 SCATNEAR GA0980:01228300 06:01:54.8 +08:07:44 15.2 0.14 156 1.0 28.3%
1032928 2021 Jan 11 07:48:21 131696 23.0 1.2 0.09 200 82 7:3EEEE GA1040:03321818 09:42:58.6 +14:03:06 13.4 0.01 148 1.0 21.5%
1031369 2021 Jan 13 05:48:22 00WT169 22.8 9.1 1.49 353 144 CLASSICAL GA1120:01808165 06:07:41.7 +22:52:08 15.4 0.03 159 1.0 14.4%
1032859 2021 Jan 26 06:51:49 123509 22.9 0.3 0.24 288 118 CLASSICAL GA1100:01649454 05:59:45.1 +21:26:22 12.0 0.20 144 1.0 9.6%
1038444 2021 Jan 26 08:54:45 10XE91 22.8 1.1 0.06 277 113 SCATNEAR GA0980:01202815 06:00:38.2 +08:11:42 13.5 0.18 141 1.0 18.5%
1046629 2021 Jan 28 03:18:08 341275 20.6 4.1 0.85 115 47 CENTAURR GA1320:03429083 05:59:09.6 +43:44:17 12.1 0.23 137 1.0 9.1%
1047126 2021 Feb 01 03:32:04 96TS66 22.1 1.2 0.07 361 148 CLASSICAL GA1160:00888454 04:45:35.1 +26:15:10 14.8 0.05 121 1.0 34.0%
1052836 2021 Feb 02 07:04:18 14WK510 22.5 1.9 0.23 248 101 SCATNEAR GA1060:01617610 06:07:11.5 +17:14:40 15.7 0.17 138 1.0 15.9%

For all of these events the star is visible to the entire RECON network at the time of the appulse. This corresponds to a "score" (second to last column) of 1. The last column is the estimate of the probability of success for RECON if it attempts this event. This number is based on the uncertainty in the prediction combined with the actual geometry for RECON for the event. In general, we look for a probability greater than about 30% for an official RECON campaign. This probability does not include any factors such as weather.

Most of the columns are self-explanatory. Since, indicates how long it has been since the object has been measured. "TNO pos err" is the uncertainty in the position of the TNO at the time of the appulse, in arc-seconds. The two diameters give an estimate of the size of the object for two different albedos (5% and 30%). "minsep" is the minimum separation (in arcsec) between the star and TNO as seen from the position of the center of the earth. "selong" is the angle between the sun and the object (solar elongation) at the time of the event.

Marc W. Buie, Southwest Research Institute

RECON