RECON TNO event list

This table lists the best candidates for TNO occultation for the next two years that are visible from the entire network. These events all have a minimum success probability of 30%.

This list was last updated at 2019/03/25 18:10:31 UT

,
Idx ET Desig Vmag Since
(yrs)
TNO pos err Diam(5%) Diam(30%) DES Classification StarID RA Dec mag minsep selong RECON Prob
329811 2019 Jun 20 07:24:43 470309 20.9 0.8 0.08 240 98 CENTAURR GA0920:05250247 17:34:05.2 +03:51:13 16.6 0.25 152 1.00 33.3%
306903 2019 Aug 20 05:11:02 523719 22.5 0.9 0.13 63 26 CENTAURR GA1180:04007658 16:56:12.5 +29:19:51 16.4 0.15 97 1.00 49.7%
322162 2019 Sep 21 11:22:34 14YG50 22.7 1.1 0.09 225 92 3:2E GA1140:02942103 07:49:02.0 +24:45:17 15.6 0.10 63 1.00 30.5%
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 0.19 154 1.00 36.1%
232708 2020 Jan 02 02:58:42 15875 21.7 1.4 0.31 240 98 3:2E GA1160:01598803 05:48:34.5 +27:51:02 16.6 0.12 166 1.00 42.0%
239981 2020 Jan 10 10:15:07 248835 21.7 0.5 0.11 76 31 CENTAURR GA1280:01542791 04:42:15.5 +39:35:00 13.3 0.07 142 1.00 44.0%
286477 2020 Sep 16 12:00:38 06QP180 24.4 3.3 0.09 66 27 CENTAURR GA1060:00253317 02:34:51.0 +16:46:44 15.3 0.12 132 0.99 41.3%
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 0.06 124 1.00 60.4%
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 0.07 124 1.00 65.7%
363957 2020 Oct 21 11:36:22 523597 22.8 0.5 0.06 110 45 CENTAURR GA1080:00204642 01:56:32.2 +19:04:27 15.0 0.16 171 1.00 32.4%
1008496 2020 Nov 25 07:06:52 03UP292 22.0 1.3 0.06 212 87 2:1E GA1240:01837871 05:24:01.9 +34:12:16 17.0 0.00 158 1.00 39.5%
1047126 2021 Feb 01 03:32:04 96TS66 22.1 1.3 0.07 361 148 CLASSICAL GA1160:00888454 04:45:35.1 +26:15:10 14.8 0.05 121 1.00 34.0%
1134535 2021 Jul 29 09:16:24 523700 21.6 1.5 0.08 229 94 3:2E+6:4II GA1100:10807285 19:41:14.2 +20:55:44 16.1 0.08 138 1.00 40.3%
1146069 2021 Oct 03 04:46:53 342842 21.1 1.4 0.14 83 34 CENTAURR GA1380:05678133 19:45:55.8 +48:53:53 16.8 0.16 104 1.00 38.7%
1158252 2021 Dec 09 03:30:42 03UP292 22.0 1.3 0.06 212 87 2:1E GA1240:02044191 05:35:17.7 +34:41:53 16.3 0.17 166 1.00 31.7%
1128633 2021 Dec 19 06:03:32 463368 20.9 2.4 0.21 209 85 CENTAURR GA1060:01803825 06:20:16.7 +17:20:38 16.2 0.14 170 1.00 35.3%
1142281 2022 Jan 13 06:08:19 98UR43 23.2 1.3 0.31 131 54 3:2E GA1180:01868420 05:51:54.9 +28:38:40 15.1 0.02 155 1.00 31.2%
1138033 2022 Jan 21 04:52:31 13UE15 22.3 2.3 0.05 120 49 CENTAURR GA1180:01771980 05:46:55.8 +29:41:56 16.5 0.14 146 1.00 42.6%
1105624 2022 Feb 10 03:41:24 15875 21.9 1.4 0.31 240 98 3:2E GA1160:01938563 06:06:48.0 +27:27:51 15.6 0.04 130 1.00 33.6%
1125536 2022 Apr 10 06:25:04 518151 22.0 0.1 0.14 58 24 CENTAURR GA1260:03577477 12:38:17.6 +36:47:48 16.0 0.03 135 1.00 35.7%
1241359 2022 Aug 28 08:03:29 342842 21.2 1.4 0.14 83 34 CENTAURR GA1340:06000002 19:52:11.6 +45:56:49 13.4 0.13 115 1.00 40.1%
1241370 2022 Sep 03 06:26:00 342842 21.2 1.4 0.14 83 34 CENTAURR GA1340:05955118 19:50:27.5 +45:34:55 17.0 0.16 114 1.00 45.9%
1203540 2022 Nov 14 11:43:59 11UC411 22.7 0.5 0.11 151 62 3:2E GA1120:00446859 03:38:43.2 +23:21:04 14.1 0.10 173 1.00 36.9%
1190324 2022 Nov 15 08:21:24 04VY130 23.0 1.3 0.20 145 59 3:2E GA1040:01311717 05:56:01.3 +15:54:51 11.5 0.11 143 1.00 38.5%
1210440 2022 Nov 18 06:55:36 54598 19.0 0.1 0.05 191 78 CENTAURR GA1320:03593502 06:17:08.7 +43:46:37 15.4 0.17 138 1.00 39.7%
1196256 2022 Nov 18 10:34:55 07TK422 22.9 1.2 0.09 93 38 CENTAURR GA1060:00346234 03:23:03.2 +17:51:38 16.4 0.14 177 1.00 46.2%
1238709 2023 Jan 04 04:38:31 98WS31 23.5 3.1 0.48 134 55 3:2E GA1200:02185419 06:00:30.3 +30:07:52 16.8 0.11 165 1.00 33.9%
1210475 2023 Jan 08 06:10:03 54598 18.9 0.1 0.05 191 78 CENTAURR GA1320:03463504 06:02:30.1 +43:53:52 13.5 0.15 154 1.00 32.6%
1234510 2023 Jan 23 08:20:53 523620 22.1 1.2 0.09 110 45 CENTAURR GA1240:01258955 04:39:26.2 +34:06:48 16.8 0.07 129 1.00 40.8%
1196637 2023 Feb 11 12:35:34 08KV42 22.9 0.9 0.14 107 44 CENTAURR GA1440:04935702 16:28:07.6 +55:36:41 17.0 0.15 95 1.00 33.5%
1321513 2023 Jul 12 07:55:31 523700 21.7 1.5 0.08 229 94 3:2E+6:4II GA1080:15391763 20:04:20.3 +18:28:10 16.7 0.10 138 1.00 37.7%
1329865 2023 Aug 07 06:14:17 342842 21.3 1.4 0.14 83 34 CENTAURR GA1300:06767294 19:56:52.9 +41:43:02 16.8 0.03 120 1.00 33.5%
1291715 2023 Oct 16 08:14:39 523727 19.8 0.6 0.06 288 118 CENTAURR GA0980:18189653 22:22:08.4 +08:25:09 17.0 0.01 135 1.00 53.0%
1323139 2023 Nov 05 08:03:57 523620 22.1 1.2 0.09 110 45 CENTAURR GA1240:01585091 05:07:42.3 +34:07:05 14.2 0.16 142 1.00 35.9%
1298947 2023 Nov 09 12:18:44 447178 19.5 0.2 0.07 229 94 CENTAURR GA0740:01850147 07:05:52.8 -14:06:28 12.6 0.20 111 1.00 35.4%
1318986 2023 Nov 15 07:08:06 14XU40 22.4 1.2 0.09 229 94 3:2E GA1120:01472288 05:48:04.9 +22:44:14 14.2 0.13 145 1.00 38.1%
1347704 2023 Nov 20 02:04:48 517717 20.9 0.7 0.12 63 26 CENTAURR GA1540:02620261 03:17:50.3 +64:51:04 17.0 0.25 135 0.99 31.6%
1333269 2023 Nov 29 11:48:47 14RQ63 22.3 1.1 0.07 213 87 3:2E GA1060:00916780 05:22:01.3 +17:05:01 14.8 0.10 165 1.00 35.9%
1301319 2023 Dec 03 06:29:05 248835 22.3 0.5 0.11 76 31 CENTAURR GA1180:02315407 06:16:30.4 +29:11:05 15.8 0.08 156 1.00 34.6%
1341177 2023 Dec 20 09:42:03 523800 22.3 0.1 0.14 55 22 CENTAURR GA1100:03170314 09:15:25.4 +20:20:53 15.5 0.08 133 1.00 40.9%
1290617 2024 Jan 09 04:59:02 523746 21.1 1.2 0.08 96 39 CENTAURR GA1220:02981476 06:57:11.5 +32:43:25 16.6 0.09 169 1.00 62.6%
1333681 2024 Feb 11 03:27:38 55638 20.3 1.3 0.08 525 214 3:2E GA0960:02204872 06:48:49.9 +06:15:06 16.1 0.14 138 1.00 30.0%
1299489 2024 Mar 12 03:30:59 54598 19.1 0.1 0.05 191 78 CENTAURR GA1300:03567685 06:34:56.7 +41:09:12 13.9 0.10 104 1.00 53.2%
1338738 2024 Mar 19 03:45:52 523753 21.6 0.3 0.07 76 31 CENTAURR GA1020:03549681 12:13:20.7 +13:40:49 16.1 0.23 166 1.00 55.4%
1321836 2024 Jun 02 07:37:24 523700 21.8 1.5 0.08 229 94 3:2E+6:4II GA1060:16247790 20:17:49.2 +17:04:52 13.2 0.05 114 1.00 36.4%
1379550 2025 Jul 05 09:20:19 523718 21.9 1.6 0.07 316 129 SCATNEAR GA0840:07759024 18:16:16.2 -05:40:23 15.3 0.18 160 1.00 30.6%
1510194 2025 Sep 30 05:50:51 342842 21.6 1.4 0.14 83 34 CENTAURR GA1180:09313083 19:41:39.5 +29:11:22 16.5 0.22 108 1.00 57.0%
1510238 2025 Oct 14 05:01:54 342842 21.6 1.4 0.14 83 34 CENTAURR GA1180:09181001 19:41:01.0 +28:20:16 16.7 0.22 99 1.00 35.7%
1524614 2025 Nov 10 09:37:01 69990 23.9 1.2 0.14 145 59 3:2E GA1080:02372729 06:46:23.2 +18:27:24 16.5 0.07 127 1.00 31.1%
1496946 2025 Nov 28 12:17:59 10TT191 23.0 0.3 0.35 159 65 1:1 GA1120:01213969 05:29:29.0 +22:14:57 15.4 0.12 163 1.00 36.8%
1465709 2025 Dec 06 05:34:46 10TH 22.6 1.2 0.04 82 33 CENTAURR GA1020:02688009 07:12:44.4 +13:28:14 14.1 0.18 145 1.00 54.4%
1527699 2025 Dec 14 07:04:31 14UT224 22.1 1.2 0.05 288 118 2:1E GA1120:01130340 05:22:22.6 +23:07:39 14.9 0.11 179 1.00 35.6%
1523752 2025 Dec 15 10:47:20 468861 17.7 0.1 0.10 145 59 CENTAURR GA1120:02189486 06:30:24.1 +22:30:49 13.3 0.18 166 1.00 58.0%
1523814 2026 Jan 18 07:39:18 468861 17.8 0.1 0.10 145 59 CENTAURR GA1100:01775289 06:08:40.2 +21:14:57 16.8 0.23 154 1.00 63.3%
1497914 2026 Jan 19 06:02:45 14XU40 22.4 1.2 0.09 229 94 3:2E GA1120:01647654 05:58:59.7 +22:24:14 15.6 0.06 151 1.00 38.3%
1501789 2026 Jan 22 05:52:58 523644 21.0 1.2 0.06 316 129 3:2E+6:4II GA0900:01318105 06:22:50.3 +01:10:22 16.4 0.17 147 1.00 30.9%
1524738 2026 Feb 20 05:11:08 523800 22.9 0.1 0.14 55 22 CENTAURR GA1180:03133496 08:12:50.9 +28:08:59 13.8 0.08 147 1.00 42.2%
1497925 2026 Feb 26 06:02:58 14XU40 22.5 1.2 0.09 229 94 3:2E GA1120:01607127 05:56:37.3 +22:24:00 15.1 0.10 112 1.00 33.9%

The green lines highlight those events for which 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. If the score is between 0 and 1, only part of the network can view the star at the right time. 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. The two diameters give an estimate of the size of the object for two different albedos (5% and 30%). "TNO pos err" is the uncertainty in the position of the TNO at the time of the appulse, in arc-seconds. "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