Event between (127546) 02XU93 and star GA1540:03996250 with event index number of 1205318
Geocentric closest approach at 2023/02/01 11:59:58 UTC
J2000 position of star is 16:16:12.7 +65:01:11
Equinox of date position of star is 16:16:22.3 +64:58:22
Stellar brightness G=15.9,
use SENSEUP=128
Star is 86 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=22.4
[RECON map]
TNO is 26.3 AU from the Sun
and 26.1 AU from the Earth.
The TNO is moving 25.9
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 220 seconds.
The 1-sigma cross-track error in the shadow position is
5211 km.
The sky-plane scale is
18953.0 km/arcsec.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 5.8 sec chord
Diameter=61.8 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
Star training set for 127546, (2023/02/01 12:00UT) Object RA Dec mag sep mel Vega 18:37:43.2 +38:48:22 0.0 33.19 113 Kochab 14:50:39.8 +74:03:40 2.1 11.65 75 18 Dra 16:41:05.1 +64:32:44 4.8 2.66 88 PPM 019731 16:06:19.4 +64:37:35 8.0 1.12 86 PPM 019790 16:15:18.1 +65:00:57 8.7 0.13 86 127546 16:16:24.2 +64:57:48 15.9 86 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
4.1 sigma about the mid-time.
The median site spacing is 5.0 km
RECON observability=1.0 and success probability=4.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Chiloquin | 11:58:17 | -37.5 | Dark | Up | 52.4 | 34.5 | Up | 11:43:17 - 12:13:17 | 7200 |
| Klamath Falls | 11:58:16 | -37.5 | Dark | Up | 52.1 | 34.2 | Up | 11:43:16 - 12:13:16 | 7197 |
| Fall River/Burney | 11:58:11 | -37.5 | Dark | Up | 51.3 | 33.3 | Up | 11:43:11 - 12:13:11 | 7179 |
| Tulelake | 11:58:14 | -37.4 | Dark | Up | 52.0 | 34.0 | Up | 11:43:14 - 12:13:14 | 7177 |
| La Pine/Gilchrist | 11:58:20 | -37.0 | Dark | Up | 53.4 | 35.3 | Up | 11:43:20 - 12:13:20 | 7163 |
| Sisters | 11:58:22 | -37.0 | Dark | Up | 53.9 | 35.8 | Up | 11:43:22 - 12:13:22 | 7162 |
| Oregon Observatory | 11:58:21 | -37.0 | Dark | Up | 53.6 | 35.4 | Up | 11:43:21 - 12:13:21 | 7157 |
| Quincy | 11:58:06 | -37.4 | Dark | Up | 50.5 | 32.5 | Up | 11:43:06 - 12:13:06 | 7153 |
| Greenville | 11:58:07 | -37.3 | Dark | Up | 50.7 | 32.7 | Up | 11:43:07 - 12:13:07 | 7152 |
| CPSLO | 11:57:50 | -37.8 | Dark | Up | 46.7 | 29.8 | Up | 11:42:50 - 12:12:50 | 7150 |
| Bend | 11:58:21 | -36.8 | Dark | Up | 53.8 | 35.5 | Up | 11:43:21 - 12:13:21 | 7146 |
| Gimple | 11:58:07 | -37.3 | Dark | Up | 50.7 | 32.7 | Up | 11:43:07 - 12:13:07 | 7145 |
| Redmond | 11:58:22 | -36.7 | Dark | Up | 54.1 | 35.7 | Up | 11:43:22 - 12:13:22 | 7133 |
| Susanville | 11:58:06 | -37.1 | Dark | Up | 51.1 | 32.8 | Up | 11:43:06 - 12:13:06 | 7127 |
| Madras/Culver | 11:58:23 | -36.6 | Dark | Up | 54.4 | 36.0 | Up | 11:43:23 - 12:13:23 | 7126 |
| North Lake | 11:58:19 | -36.7 | Dark | Up | 53.3 | 34.9 | Up | 11:43:19 - 12:13:19 | 7124 |
| The Dalles | 11:58:28 | -36.4 | Dark | Up | 55.1 | 36.8 | Up | 11:43:28 - 12:13:28 | 7120 |
| Maupin | 11:58:25 | -36.4 | Dark | Up | 54.8 | 36.4 | Up | 11:43:25 - 12:13:25 | 7117 |
| Portola | 11:58:06 | -37.0 | Dark | Up | 50.6 | 32.4 | Up | 11:43:06 - 12:13:06 | 7117 |
| Paisley | 11:58:15 | -36.6 | Dark | Up | 53.0 | 34.4 | Up | 11:43:15 - 12:13:15 | 7102 |
| Goldendale | 11:58:28 | -36.1 | Dark | Up | 55.5 | 37.0 | Up | 11:43:28 - 12:13:28 | 7092 |
| Lakeview | 11:58:14 | -36.5 | Dark | Up | 52.7 | 34.0 | Up | 11:43:14 - 12:13:14 | 7092 |
| Cedarville | 11:58:10 | -36.5 | Dark | Up | 52.2 | 33.5 | Up | 11:43:10 - 12:13:10 | 7083 |
| Reno | 11:58:04 | -36.6 | Dark | Up | 50.7 | 32.1 | Up | 11:43:04 - 12:13:04 | 7068 |
| Carson City | 11:58:02 | -36.6 | Dark | Up | 50.4 | 31.9 | Up | 11:43:02 - 12:13:02 | 7068 |
| Yakima | 11:58:30 | -35.7 | Dark | Up | 56.2 | 37.6 | Up | 11:43:30 - 12:13:30 | 7065 |
| Gardnerville | 11:58:01 | -36.6 | Dark | Up | 50.2 | 31.7 | Up | 11:43:01 - 12:13:01 | 7065 |
| Ellensburg | 11:58:32 | -35.6 | Dark | Up | 56.5 | 38.0 | Up | 11:43:32 - 12:13:32 | 7060 |
| Toppenish/White Swan | 11:58:29 | -35.7 | Dark | Up | 56.1 | 37.4 | Up | 11:43:29 - 12:13:29 | 7056 |
| Wenatchee | 11:58:33 | -35.4 | Dark | Up | 56.9 | 38.4 | Up | 11:43:33 - 12:13:33 | 7040 |
| Entiat | 11:58:34 | -35.2 | Dark | Up | 57.2 | 38.6 | Up | 11:43:34 - 12:13:34 | 7030 |
| Manson/Chelan | 11:58:35 | -35.1 | Dark | Up | 57.4 | 38.8 | Up | 11:43:35 - 12:13:35 | 7023 |
| Lee Vining | 11:57:59 | -36.2 | Dark | Up | 49.6 | 31.0 | Up | 11:42:59 - 12:12:59 | 7019 |
| Yerington | 11:58:02 | -36.1 | Dark | Up | 50.5 | 31.6 | Up | 11:43:02 - 12:13:02 | 7019 |
| Brewster | 11:58:36 | -34.8 | Dark | Up | 57.7 | 39.0 | Up | 11:43:36 - 12:13:36 | 6995 |
| George/Umatilla | 11:58:27 | -35.1 | Dark | Up | 56.2 | 36.9 | Up | 11:43:27 - 12:13:27 | 6987 |
| Wildwood | 11:57:43 | -36.2 | Dark | Up | 46.4 | 28.8 | Up | 11:42:43 - 12:12:43 | 6980 |
| Okanogan | 11:58:37 | -34.6 | Dark | Up | 58.0 | 39.3 | Up | 11:43:37 - 12:13:37 | 6979 |
| Hawthorne | 11:57:59 | -35.8 | Dark | Up | 50.3 | 31.3 | Up | 11:42:59 - 12:12:59 | 6978 |
| Summerland | 11:58:41 | -34.4 | Dark | Up | 58.9 | 40.5 | Up | 11:43:41 - 12:13:41 | 6969 |
| Pasco | 11:58:28 | -34.8 | Dark | Up | 56.5 | 37.2 | Up | 11:43:28 - 12:13:28 | 6969 |
| Oliver | 11:58:39 | -34.4 | Dark | Up | 58.6 | 40.1 | Up | 11:43:39 - 12:13:39 | 6967 |
| Okanagan Falls | 11:58:40 | -34.4 | Dark | Up | 58.8 | 40.3 | Up | 11:43:40 - 12:13:40 | 6967 |
| Tonasket | 11:58:37 | -34.5 | Dark | Up | 58.3 | 39.6 | Up | 11:43:37 - 12:13:37 | 6965 |
| Penticton | 11:58:41 | -34.3 | Dark | Up | 58.9 | 40.5 | Up | 11:43:41 - 12:13:41 | 6963 |
| Oroville | 11:58:38 | -34.4 | Dark | Up | 58.5 | 39.8 | Up | 11:43:38 - 12:13:38 | 6962 |
| Bishop | 11:57:56 | -35.7 | Dark | Up | 49.4 | 30.5 | Up | 11:42:56 - 12:12:56 | 6962 |
| Anarchist Mountain Observatory | 11:58:38 | -34.3 | Dark | Up | 58.6 | 39.9 | Up | 11:43:38 - 12:13:38 | 6957 |
| PNWRO | 11:58:27 | -34.7 | Dark | Up | 56.4 | 36.9 | Up | 11:43:27 - 12:13:27 | 6955 |
| Kelowna | 11:58:42 | -34.1 | Dark | Up | 59.3 | 40.9 | Up | 11:43:42 - 12:13:42 | 6947 |
| Lone Pine | 11:57:51 | -35.6 | Dark | Up | 48.8 | 30.0 | Up | 11:42:51 - 12:12:51 | 6936 |
| Tonopah | 11:57:57 | -34.7 | Dark | Up | 50.4 | 30.7 | Up | 11:42:57 - 12:12:57 | 6866 |
| Beatty | 11:57:52 | -34.5 | Dark | Up | 49.6 | 29.9 | Up | 11:42:52 - 12:12:52 | 6829 |
| Idyllwild | 11:57:41 | -34.7 | Dark | Up | 46.9 | 28.2 | Up | 11:42:41 - 12:12:41 | 6820 |
| Indian Springs | 11:57:50 | -33.7 | Dark | Up | 49.8 | 29.5 | Up | 11:42:50 - 12:12:50 | 6739 |
| Calipatria | 11:57:39 | -33.7 | Dark | Down | 46.8 | 27.6 | Up | 11:42:39 - 12:12:39 | 6716 |
| Henderson | 11:57:48 | -33.1 | Dark | Up | 49.6 | 29.0 | Up | 11:42:48 - 12:12:48 | 6680 |
| Searchlight/Boulder City | 11:57:47 | -33.1 | Dark | Up | 49.1 | 28.7 | Up | 11:42:47 - 12:12:47 | 6673 |
| Laughlin/Bullhead City | 11:57:45 | -32.8 | Dark | Up | 49.0 | 28.4 | Up | 11:42:45 - 12:12:45 | 6642 |
| Mohave Valley | 11:57:43 | -32.8 | Dark | Down | 48.7 | 28.3 | Up | 11:42:43 - 12:12:43 | 6641 |
| Blythe | 11:57:39 | -32.9 | Dark | Down | 47.6 | 27.6 | Up | 11:42:39 - 12:12:39 | 6637 |
| Yuma | 11:57:37 | -32.9 | Dark | Down | 46.7 | 27.2 | Up | 11:42:37 - 12:12:37 | 6635 |
| Lake Havasu City | 11:57:43 | -32.6 | Dark | Down | 48.5 | 28.0 | Up | 11:42:43 - 12:12:43 | 6618 |
| Parker | 11:57:41 | -32.6 | Dark | Down | 48.2 | 27.8 | Up | 11:42:41 - 12:12:41 | 6614 |
| Kingman/Dolan Springs | 11:57:45 | -32.4 | Dark | Down | 49.2 | 28.3 | Up | 11:42:45 - 12:12:45 | 6598 |
| Patrick | 11:57:45 | -32.2 | Dark | Down | 49.4 | 28.4 | Up | 11:42:45 - 12:12:45 | 6583 |
| DCO | 11:57:45 | -31.7 | Dark | Down | 49.5 | 28.0 | Up | 11:42:45 - 12:12:45 | 6521 |
| SwRI | 11:57:58 | -25.4 | Dark | Down | 56.7 | 28.6 | Up | 11:42:58 - 12:12:58 | 5898 |
| Niwot | 11:58:00 | -25.3 | Dark | Down | 56.9 | 28.6 | Up | 11:43:00 - 12:13:00 | 5891 |
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 127546, (2023/02/01 12:00UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 33.19 113 Kochab 14:50:42.2 +74:09:20 2.1 11.65 75 18 Dra 16:40:55.1 +64:35:20 4.8 2.66 88 PPM 019731 16:06:05.6 +64:41:15 8.0 1.12 86 PPM 019790 16:15:06.6 +65:04:21 8.7 0.13 86 127546 16:16:12.7 +65:01:11 15.9 86 Positions are for J2000
Event circumstances last updated at 2019/03/19 02:44:18 UT
Marc W. Buie, Southwest Research Institute