Event between (523700) 14GM54 and star GA1040:16295509 with event index number of 1321683
Geocentric closest approach at 2023/12/02 02:11:41 UTC
J2000 position of star is 20:00:32.8 +15:37:28
Equinox of date position of star is 20:01:26.2 +15:40:44
Stellar brightness G=15.4,
use SENSEUP=128
Star is 140 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 28.2 AU from the Sun
and 28.7 AU from the Earth.
The TNO is moving 28.3
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 135 seconds.
The 1-sigma cross-track error in the shadow position is
2555 km.
The sky-plane scale is
20791.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 8.1 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2023/12/02 02:12UT) Object RA Dec mag sep mel Vega 18:37:44.9 +38:48:24 0.0 29.54 111 Tarazed 19:47:23.8 +10:40:23 2.7 6.10 143 PPM 137524 20:04:35.7 +16:05:59 5.4 0.82 139 PPM 137438 20:02:17.2 +15:16:42 8.4 0.44 140 PPM 137436 20:02:15.0 +15:32:50 9.1 0.21 140 523700 20:01:38.6 +15:41:30 15.4 140 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
5.0 sigma about the mid-time.
The median site spacing is 10.6 km
RECON observability=1.0 and success probability=9.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 02:12:09 | -20.6 | Dark | Down | 40.6 | 242.1 | Up | 02:00:22 - 02:23:56 | -1094 |
| Niwot | 02:12:50 | -29.5 | Dark | Down | 33.9 | 261.9 | Up | 02:01:03 - 02:24:37 | -1098 |
| SwRI | 02:12:50 | -29.4 | Dark | Down | 34.0 | 261.9 | Up | 02:01:03 - 02:24:37 | -1109 |
| Penticton | 02:12:10 | -20.4 | Dark | Down | 40.9 | 242.3 | Up | 02:00:23 - 02:23:57 | -1118 |
| Summerland | 02:12:10 | -20.3 | Dark | Down | 40.9 | 242.1 | Up | 02:00:23 - 02:23:57 | -1119 |
| Okanagan Falls | 02:12:11 | -20.4 | Dark | Down | 41.0 | 242.4 | Up | 02:00:24 - 02:23:58 | -1129 |
| Oliver | 02:12:11 | -20.4 | Dark | Down | 41.0 | 242.5 | Up | 02:00:24 - 02:23:58 | -1136 |
| Anarchist Mountain Observatory | 02:12:12 | -20.4 | Dark | Down | 41.0 | 242.9 | Up | 02:00:25 - 02:23:59 | -1138 |
| Oroville | 02:12:12 | -20.4 | Dark | Down | 41.1 | 242.8 | Up | 02:00:25 - 02:23:59 | -1144 |
| Tonasket | 02:12:13 | -20.3 | Dark | Down | 41.2 | 243.0 | Up | 02:00:26 - 02:24:00 | -1156 |
| Okanogan | 02:12:14 | -20.2 | Dark | Down | 41.4 | 243.1 | Up | 02:00:27 - 02:24:01 | -1178 |
| Brewster | 02:12:14 | -20.0 | Dark | Down | 41.7 | 243.2 | Up | 02:00:27 - 02:24:01 | -1200 |
| Manson/Chelan | 02:12:15 | -19.7 | Dark | Down | 42.0 | 243.0 | Up | 02:00:28 - 02:24:02 | -1224 |
| Entiat | 02:12:15 | -19.6 | Dark | Down | 42.1 | 243.1 | Up | 02:00:28 - 02:24:02 | -1239 |
| Wenatchee | 02:12:16 | -19.5 | Dark | Down | 42.3 | 243.2 | Up | 02:00:29 - 02:24:03 | -1256 |
| Pasco | 02:12:21 | -20.1 | Dark | Down | 42.0 | 245.3 | Up | 02:00:34 - 02:24:08 | -1271 |
| PNWRO | 02:12:22 | -20.2 | Dark | Down | 42.0 | 245.8 | Up | 02:00:35 - 02:24:09 | -1276 |
| Ellensburg | 02:12:17 | -19.3 | Dark | Down | 42.6 | 243.3 | Up | 02:00:30 - 02:24:04 | -1286 |
| George/Umatilla | 02:12:22 | -19.9 | Dark | Down | 42.3 | 245.4 | Up | 02:00:35 - 02:24:09 | -1298 |
| Yakima | 02:12:18 | -19.2 | Dark | Down | 42.8 | 243.6 | Up | 02:00:31 - 02:24:05 | -1309 |
| Toppenish/White Swan | 02:12:19 | -19.3 | Dark | Down | 42.8 | 244.0 | Up | 02:00:32 - 02:24:06 | -1314 |
| Goldendale | 02:12:20 | -18.9 | Dark | Down | 43.3 | 244.0 | Up | 02:00:33 - 02:24:07 | -1361 |
| The Dalles | 02:12:21 | -18.6 | Dark | Down | 43.6 | 243.8 | Up | 02:00:34 - 02:24:08 | -1388 |
| Maupin | 02:12:21 | -18.6 | Dark | Down | 43.7 | 244.3 | Up | 02:00:34 - 02:24:08 | -1407 |
| Madras/Culver | 02:12:23 | -18.4 | Dark | Down | 44.0 | 244.7 | Up | 02:00:36 - 02:24:10 | -1440 |
| Redmond | 02:12:24 | -18.3 | Dark | Down | 44.2 | 245.0 | Up | 02:00:37 - 02:24:11 | -1462 |
| Sisters | 02:12:24 | -18.0 | Dark | Down | 44.4 | 244.6 | Up | 02:00:37 - 02:24:11 | -1477 |
| Bend | 02:12:25 | -18.2 | Dark | Down | 44.3 | 245.1 | Up | 02:00:38 - 02:24:12 | -1480 |
| Oregon Observatory | 02:12:25 | -18.0 | Dark | Down | 44.5 | 245.1 | Up | 02:00:38 - 02:24:12 | -1496 |
| La Pine/Gilchrist | 02:12:26 | -17.9 | AT | Down | 44.6 | 245.2 | Up | 02:00:39 - 02:24:13 | -1510 |
| North Lake | 02:12:28 | -18.3 | Dark | Down | 44.4 | 246.2 | Up | 02:00:41 - 02:24:15 | -1511 |
| Paisley | 02:12:30 | -18.4 | Dark | Down | 44.4 | 247.1 | Up | 02:00:43 - 02:24:17 | -1529 |
| Lakeview | 02:12:32 | -18.4 | Dark | Down | 44.4 | 247.7 | Up | 02:00:45 - 02:24:19 | -1552 |
| Cedarville | 02:12:35 | -18.4 | Dark | Down | 44.5 | 248.5 | Up | 02:00:48 - 02:24:22 | -1584 |
| Chiloquin | 02:12:28 | -17.4 | AT | Down | 45.3 | 245.9 | Up | 02:00:41 - 02:24:15 | -1591 |
| Klamath Falls | 02:12:30 | -17.4 | AT | Down | 45.4 | 246.3 | Up | 02:00:43 - 02:24:17 | -1609 |
| Tulelake | 02:12:31 | -17.6 | AT | Down | 45.3 | 246.8 | Up | 02:00:44 - 02:24:18 | -1612 |
| Fall River/Burney | 02:12:34 | -17.4 | AT | Down | 45.6 | 247.8 | Up | 02:00:47 - 02:24:21 | -1665 |
| Susanville | 02:12:37 | -17.8 | AT | Down | 45.3 | 249.1 | Up | 02:00:50 - 02:24:24 | -1673 |
| Tonopah | 02:12:50 | -19.9 | Dark | Down | 43.4 | 254.3 | Up | 02:01:03 - 02:24:37 | -1673 |
| Reno | 02:12:41 | -18.2 | Dark | Down | 45.0 | 250.7 | Up | 02:00:54 - 02:24:28 | -1691 |
| Yerington | 02:12:45 | -18.6 | Dark | Down | 44.6 | 251.8 | Up | 02:00:58 - 02:24:32 | -1698 |
| Gimple | 02:12:38 | -17.6 | AT | Down | 45.5 | 249.1 | Up | 02:00:51 - 02:24:25 | -1699 |
| Portola | 02:12:39 | -17.8 | AT | Down | 45.4 | 249.8 | Up | 02:00:52 - 02:24:26 | -1703 |
| Greenville | 02:12:38 | -17.5 | AT | Down | 45.6 | 249.1 | Up | 02:00:51 - 02:24:25 | -1703 |
| Hawthorne | 02:12:47 | -18.9 | Dark | Down | 44.4 | 252.7 | Up | 02:01:00 - 02:24:34 | -1704 |
| Carson City | 02:12:43 | -18.2 | Dark | Down | 45.1 | 251.0 | Up | 02:00:56 - 02:24:30 | -1713 |
| Indian Springs | 02:12:50 | -20.8 | Dark | Down | 42.6 | 256.9 | Up | 02:01:03 - 02:24:37 | -1713 |
| Quincy | 02:12:38 | -17.5 | AT | Down | 45.7 | 249.3 | Up | 02:00:51 - 02:24:25 | -1715 |
| Gardnerville | 02:12:44 | -18.2 | Dark | Down | 45.1 | 251.3 | Up | 02:00:57 - 02:24:31 | -1727 |
| Henderson | 02:12:50 | -21.2 | Dark | Down | 42.2 | 257.9 | Up | 02:01:03 - 02:24:37 | -1729 |
| Beatty | 02:12:50 | -20.0 | Dark | Down | 43.4 | 255.7 | Up | 02:01:03 - 02:24:37 | -1732 |
| Patrick | 02:12:50 | -22.0 | Dark | Down | 41.4 | 259.2 | Up | 02:01:03 - 02:24:37 | -1741 |
| DCO | 02:12:50 | -22.5 | Dark | Down | 40.9 | 260.0 | Up | 02:01:03 - 02:24:37 | -1744 |
| Lee Vining | 02:12:48 | -18.4 | Dark | Down | 44.9 | 252.8 | Up | 02:01:01 - 02:24:35 | -1762 |
| Kingman/Dolan Springs | 02:12:50 | -21.8 | Dark | Down | 41.6 | 259.3 | Up | 02:01:03 - 02:24:37 | -1766 |
| Bishop | 02:12:50 | -18.8 | Dark | Down | 44.5 | 254.0 | Up | 02:01:03 - 02:24:37 | -1769 |
| Searchlight/Boulder City | 02:12:50 | -21.1 | Dark | Down | 42.3 | 258.4 | Up | 02:01:03 - 02:24:37 | -1772 |
| Laughlin/Bullhead City | 02:12:50 | -21.4 | Dark | Down | 42.1 | 258.9 | Up | 02:01:03 - 02:24:37 | -1785 |
| Lone Pine | 02:12:50 | -18.9 | Dark | Down | 44.5 | 255.0 | Up | 02:01:03 - 02:24:37 | -1806 |
| Mohave Valley | 02:12:50 | -21.3 | Dark | Down | 42.1 | 259.2 | Up | 02:01:03 - 02:24:37 | -1807 |
| Lake Havasu City | 02:12:50 | -21.4 | Dark | Down | 42.0 | 259.7 | Up | 02:01:03 - 02:24:37 | -1833 |
| Parker | 02:12:50 | -21.4 | Dark | Down | 42.0 | 260.0 | Up | 02:01:03 - 02:24:37 | -1863 |
| Blythe | 02:12:50 | -21.0 | Dark | Down | 42.3 | 260.3 | Up | 02:01:03 - 02:24:37 | -1918 |
| Idyllwild | 02:12:50 | -19.3 | Dark | Down | 44.1 | 258.7 | Up | 02:01:03 - 02:24:37 | -1977 |
| Calipatria | 02:12:50 | -20.1 | Dark | Down | 43.2 | 260.1 | Up | 02:01:03 - 02:24:37 | -1991 |
| Yuma | 02:12:50 | -20.8 | Dark | Down | 42.5 | 261.1 | Up | 02:01:03 - 02:24:37 | -2002 |
| CPSLO | 02:12:50 | -16.6 | AT | Down | 46.9 | 254.2 | Up | 02:01:03 - 02:24:37 | -2009 |
| Wildwood | 02:12:50 | -17.9 | AT | Down | 45.5 | 257.0 | Up | 02:01:03 - 02:24:37 | -2017 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 523700, (2023/12/02 02:12UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 29.54 111 Tarazed 19:46:15.6 +10:36:48 2.7 6.10 143 PPM 137524 20:03:30.0 +16:01:52 5.4 0.82 139 PPM 137438 20:01:11.2 +15:12:40 8.4 0.44 140 PPM 137436 20:01:09.1 +15:28:47 9.1 0.21 140 523700 20:00:32.8 +15:37:28 15.4 140 Positions are for J2000
Event circumstances last updated at 2019/06/08 06:13:10 UT
Marc W. Buie, Southwest Research Institute