Event between (523700) 14GM54 and star GA1080:15391763 with event index number of 2089153
Geocentric closest approach at 2023/07/12 07:55:51 UTC
J2000 position of star is 20:04:20.3 +18:28:10
Equinox of date position of star is 20:05:21.6 +18:32:07
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 96 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 28.1 AU from the Sun
and 27.3 AU from the Earth.
The TNO is moving 23.4
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
1305 km.
The sky-plane scale is
19823.8 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 9.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2023/07/12 07:56UT) Object RA Dec mag sep mel Vega 18:37:44.1 +38:48:24 0.0 27.79 103 Tarazed 19:47:22.7 +10:40:20 2.7 8.99 103 16Eta Sge 20:06:12.1 +20:03:35 5.1 1.53 96 PPM 137514 20:04:19.7 +18:34:06 7.6 0.25 97 PPM 137526 20:04:39.4 +18:24:34 9.2 0.22 97 523700 20:05:23.7 +18:32:15 16.7 96 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 25.8 km
RECON observability=1.0 and success probability=38.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 07:56:00 | -17.3 | AT | Down | 56.3 | 158.3 | Up | 07:49:03 - 08:02:56 | 1150 |
| Kelowna | 07:55:58 | -18.1 | Dark | Down | 57.3 | 159.4 | Up | 07:49:02 - 08:02:55 | 1062 |
| Peachland | 07:55:59 | -18.2 | Dark | Down | 57.3 | 158.8 | Up | 07:49:03 - 08:02:56 | 1057 |
| Sleaford | 07:55:17 | -15.2 | AT | Up | 56.4 | 183.0 | Up | 07:48:21 - 08:02:14 | 1051 |
| Summerland | 07:55:59 | -18.4 | Dark | Down | 57.5 | 158.9 | Up | 07:49:03 - 08:02:56 | 1042 |
| Penticton | 07:55:59 | -18.5 | Dark | Down | 57.5 | 159.0 | Up | 07:49:03 - 08:02:56 | 1034 |
| Victoria | 07:56:12 | -19.3 | Dark | Down | 57.4 | 151.9 | Up | 07:49:15 - 08:03:08 | 1018 |
| Oliver | 07:56:00 | -18.8 | Dark | Down | 57.9 | 158.8 | Up | 07:49:03 - 08:02:56 | 1003 |
| Anarchist Mountain Observatory | 07:56:00 | -19.0 | Dark | Down | 58.1 | 159.1 | Up | 07:49:03 - 08:02:56 | 984 |
| Tonasket | 07:56:00 | -19.3 | Dark | Down | 58.4 | 158.8 | Up | 07:49:04 - 08:02:57 | 957 |
| Okanogan | 07:56:01 | -19.6 | Dark | Down | 58.6 | 158.3 | Up | 07:49:05 - 08:02:58 | 929 |
| Brewster | 07:56:02 | -19.9 | Dark | Down | 58.8 | 157.8 | Up | 07:49:06 - 08:02:59 | 909 |
| Manson/Chelan | 07:56:04 | -20.1 | Dark | Down | 58.9 | 157.0 | Up | 07:49:07 - 08:03:00 | 897 |
| Wenatchee | 07:56:05 | -20.6 | Dark | Down | 59.3 | 156.4 | Up | 07:49:08 - 08:03:01 | 857 |
| Ellensburg | 07:56:06 | -21.0 | Dark | Down | 59.6 | 155.7 | Up | 07:49:10 - 08:03:03 | 823 |
| Yakima | 07:56:07 | -21.4 | Dark | Down | 60.0 | 155.4 | Up | 07:49:10 - 08:03:03 | 786 |
| Toppenish/White Swan | 07:56:07 | -21.6 | Dark | Down | 60.3 | 155.6 | Up | 07:49:10 - 08:03:03 | 763 |
| Goldendale | 07:56:09 | -22.1 | Dark | Down | 60.6 | 154.4 | Up | 07:49:12 - 08:03:05 | 720 |
| The Dalles | 07:56:10 | -22.3 | Dark | Down | 60.7 | 153.6 | Up | 07:49:14 - 08:03:07 | 707 |
| PNWRO | 07:56:02 | -22.0 | Dark | Down | 61.0 | 158.1 | Up | 07:49:06 - 08:02:59 | 699 |
| Maupin | 07:56:11 | -22.8 | Dark | Down | 61.1 | 153.4 | Up | 07:49:14 - 08:03:07 | 666 |
| Sisters | 07:56:13 | -23.6 | Dark | Down | 61.8 | 151.8 | Up | 07:49:17 - 08:03:10 | 594 |
| Bend | 07:56:13 | -23.9 | Dark | Down | 62.1 | 152.1 | Up | 07:49:16 - 08:03:09 | 566 |
| Oregon Observatory | 07:56:14 | -24.0 | Dark | Down | 62.2 | 151.7 | Up | 07:49:17 - 08:03:10 | 553 |
| North Lake | 07:56:13 | -24.7 | Dark | Down | 62.9 | 152.1 | Up | 07:49:17 - 08:03:10 | 481 |
| Chiloquin | 07:56:17 | -25.3 | Dark | Down | 63.2 | 149.6 | Up | 07:49:21 - 08:03:14 | 437 |
| Klamath Falls | 07:56:17 | -25.7 | Dark | Down | 63.5 | 149.5 | Up | 07:49:21 - 08:03:14 | 402 |
| Lakeview | 07:56:13 | -25.8 | Dark | Down | 64.0 | 152.2 | Up | 07:49:16 - 08:03:09 | 368 |
| Cedarville | 07:56:13 | -26.4 | Dark | Down | 64.7 | 151.9 | Up | 07:49:17 - 08:03:10 | 301 |
| Fall River/Burney | 07:56:18 | -26.9 | Dark | Down | 64.7 | 149.0 | Up | 07:49:21 - 08:03:14 | 281 |
| Susanville | 07:56:16 | -27.5 | Dark | Down | 65.5 | 149.8 | Up | 07:49:20 - 08:03:13 | 203 |
| Greenville | 07:56:18 | -27.8 | Dark | Down | 65.6 | 148.9 | Up | 07:49:21 - 08:03:14 | 183 |
| Gimple | 07:56:18 | -27.8 | Dark | Down | 65.6 | 149.1 | Up | 07:49:21 - 08:03:14 | 181 |
| Quincy | 07:56:18 | -28.0 | Dark | Down | 65.8 | 148.7 | Up | 07:49:22 - 08:03:15 | 163 |
| Portola | 07:56:17 | -28.1 | Dark | Down | 66.1 | 149.5 | Up | 07:49:20 - 08:03:13 | 140 |
| Reno | 07:56:15 | -28.4 | Dark | Down | 66.6 | 150.6 | Up | 07:49:18 - 08:03:11 | 100 |
| Carson City | 07:56:15 | -28.8 | Dark | Down | 66.9 | 150.3 | Up | 07:49:19 - 08:03:12 | 64 |
| Gardnerville | 07:56:16 | -29.0 | Dark | Down | 67.1 | 150.1 | Up | 07:49:19 - 08:03:12 | 39 |
| Yerington | 07:56:13 | -29.0 | Dark | Down | 67.3 | 151.4 | Up | 07:49:17 - 08:03:10 | 31 |
| Hawthorne | 07:56:12 | -29.5 | Dark | Down | 67.9 | 152.1 | Up | 07:49:16 - 08:03:09 | -27 |
| Lee Vining | 07:56:15 | -30.0 | Dark | Down | 68.2 | 150.3 | Up | 07:49:18 - 08:03:11 | -72 |
| Tonopah | 07:56:08 | -30.0 | Dark | Down | 68.8 | 154.9 | Up | 07:49:11 - 08:03:04 | -104 |
| Dunrhomin | 07:55:23 | -26.7 | Dark | Up | 68.1 | 186.5 | Up | 07:48:26 - 08:02:19 | -106 |
| CU-SBO | 07:55:24 | -27.0 | Dark | Up | 68.4 | 186.3 | Up | 07:48:27 - 08:02:20 | -130 |
| Bishop | 07:56:13 | -30.6 | Dark | Down | 69.0 | 151.3 | Up | 07:49:17 - 08:03:10 | -148 |
| Beatty | 07:56:08 | -31.1 | Dark | Down | 70.0 | 154.8 | Up | 07:49:11 - 08:03:04 | -231 |
| Indian Springs | 07:56:04 | -31.4 | Dark | Down | 70.6 | 157.2 | Up | 07:49:08 - 08:03:01 | -287 |
| Henderson | 07:56:02 | -31.9 | Dark | Down | 71.3 | 158.5 | Up | 07:49:06 - 08:02:59 | -356 |
| Patrick | 07:55:59 | -32.5 | Dark | Down | 72.2 | 161.1 | Up | 07:49:03 - 08:02:56 | -443 |
| Laughlin/Bullhead City | 07:56:02 | -32.8 | Dark | Down | 72.3 | 158.7 | Up | 07:49:05 - 08:02:58 | -454 |
| Kingman/Dolan Springs | 07:56:00 | -32.7 | Dark | Down | 72.4 | 160.3 | Up | 07:49:04 - 08:02:57 | -462 |
| Wildwood | 07:56:18 | -33.9 | Dark | Down | 71.7 | 146.0 | Up | 07:49:22 - 08:03:15 | -475 |
| Mohave Valley | 07:56:02 | -33.0 | Dark | Down | 72.5 | 158.4 | Up | 07:49:06 - 08:02:59 | -482 |
| Lake Havasu City | 07:56:02 | -33.4 | Dark | Down | 73.0 | 158.7 | Up | 07:49:05 - 08:02:58 | -529 |
| Idyllwild | 07:56:12 | -34.3 | Dark | Down | 72.8 | 150.6 | Up | 07:49:15 - 08:03:08 | -554 |
| Parker | 07:56:02 | -33.8 | Dark | Down | 73.3 | 158.4 | Up | 07:49:06 - 08:02:59 | -565 |
| Calipatria | 07:56:08 | -34.9 | Dark | Down | 73.8 | 153.2 | Up | 07:49:12 - 08:03:05 | -644 |
| George/Scottsdale | 07:55:53 | -34.0 | Dark | Down | 74.3 | 165.8 | Up | 07:48:57 - 08:02:50 | -660 |
| Yuma | 07:56:05 | -35.2 | Dark | Down | 74.5 | 155.4 | Up | 07:49:09 - 08:03:02 | -708 |
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, (2023/07/12 07:56UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 27.79 103 Tarazed 19:46:15.6 +10:36:48 2.7 8.99 103 16Eta Sge 20:05:09.5 +19:59:29 5.1 1.53 96 PPM 137514 20:03:16.4 +18:30:03 7.6 0.25 97 PPM 137526 20:03:36.0 +18:20:31 9.2 0.22 97 523700 20:04:20.3 +18:28:10 16.7 96 Positions are for J2000
Event circumstances last updated at 2022/10/05 04:15:47 UT
Marc W. Buie, Southwest Research Institute