Event between 04KV18 and star GA0740:17546596 with event index number of 2564060
Geocentric closest approach at 2023/05/19 10:36:22 UTC
J2000 position of star is 18:23:14.6 -14:27:45
Equinox of date position of star is 18:24:30.5 -14:26:59
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 30.6 AU from the Sun
and 29.8 AU from the Earth.
The TNO is moving 18.3
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 310 seconds.
The 1-sigma cross-track error in the shadow position is
1983 km.
The sky-plane scale is
21613.9 km/arcsec.
The TNO has an absolute magnitude Hv=8.7
Diameter=110.2 km assuming a 5% albedo -- 6.0 sec chord
Diameter=45.0 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 04KV18, (2023/05/19 10:36UT) Object RA Dec mag sep mel Antares 16:30:50.7 -26:28:55 0.9 29.13 166 Nunki 18:56:42.8 -26:15:56 2.0 14.00 133 PPM 234386 18:21:29.6 -15:49:12 5.2 1.56 140 PPM 234435 18:23:35.9 -14:22:32 7.7 0.25 139 PPM 234445 18:24:04.6 -14:21:01 8.9 0.16 139 04KV18 18:24:34.5 -14:26:56 17.0 138 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
2.9 sigma about the mid-time.
The median site spacing is 19.1 km
RECON observability=0.7 and success probability=3.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:36:22 | -4.2 | CT | Down | 22.3 | 194.9 | Low | 10:21:22 - 10:51:22 | 4895 |
| Kamloops | 10:37:14 | -11.3 | NT | Down | 24.9 | 180.0 | Low | 10:22:14 - 10:52:14 | 4702 |
| Kelowna | 10:37:10 | -11.6 | NT | Down | 25.7 | 180.9 | Low | 10:22:10 - 10:52:10 | 4674 |
| Peachland | 10:37:11 | -11.8 | NT | Down | 25.8 | 180.6 | Low | 10:22:11 - 10:52:11 | 4665 |
| Summerland | 10:37:11 | -11.9 | NT | Down | 25.9 | 180.7 | Low | 10:22:11 - 10:52:11 | 4659 |
| Penticton | 10:37:11 | -11.9 | NT | Down | 26.0 | 180.8 | Low | 10:22:11 - 10:52:11 | 4657 |
| Oliver | 10:37:10 | -12.2 | AT | Down | 26.4 | 180.8 | Low | 10:22:10 - 10:52:10 | 4640 |
| Anarchist Mountain Observatory | 10:37:09 | -12.2 | AT | Down | 26.5 | 181.0 | Low | 10:22:09 - 10:52:09 | 4635 |
| Tonasket | 10:37:10 | -12.5 | AT | Down | 26.8 | 181.0 | Low | 10:22:10 - 10:52:10 | 4618 |
| Okanogan | 10:37:10 | -12.8 | AT | Down | 27.2 | 180.8 | Low | 10:22:10 - 10:52:10 | 4599 |
| Brewster | 10:37:11 | -13.1 | AT | Down | 27.4 | 180.6 | Low | 10:22:11 - 10:52:11 | 4583 |
| Manson/Chelan | 10:37:12 | -13.4 | AT | Down | 27.7 | 180.2 | Low | 10:22:12 - 10:52:12 | 4568 |
| Victoria | 10:37:25 | -14.2 | AT | Down | 27.0 | 176.7 | Low | 10:22:25 - 10:52:25 | 4560 |
| Wenatchee | 10:37:12 | -13.9 | AT | Down | 28.1 | 180.0 | Low | 10:22:12 - 10:52:12 | 4542 |
| Ellensburg | 10:37:13 | -14.3 | AT | Down | 28.5 | 179.8 | Low | 10:22:13 - 10:52:13 | 4518 |
| Yakima | 10:37:13 | -14.6 | AT | Down | 28.9 | 179.8 | Low | 10:22:13 - 10:52:13 | 4496 |
| Toppenish/White Swan | 10:37:13 | -14.7 | AT | Down | 29.2 | 179.9 | Low | 10:22:13 - 10:52:13 | 4486 |
| PNWRO | 10:37:07 | -14.4 | AT | Down | 29.5 | 181.6 | Low | 10:22:07 - 10:52:07 | 4485 |
| Goldendale | 10:37:15 | -15.3 | AT | Down | 29.7 | 179.5 | Low | 10:22:15 - 10:52:15 | 4451 |
| The Dalles | 10:37:15 | -15.7 | AT | Down | 29.9 | 179.1 | Low | 10:22:15 - 10:52:15 | 4434 |
| Maupin | 10:37:14 | -16.0 | AT | Down | 30.4 | 179.2 | Up | 10:22:14 - 10:52:14 | 4412 |
| Sisters | 10:37:17 | -16.9 | AT | Down | 31.2 | 178.6 | Up | 10:22:17 - 10:52:17 | 4357 |
| Bend | 10:37:16 | -16.9 | AT | Down | 31.5 | 178.9 | Up | 10:22:16 - 10:52:16 | 4346 |
| Oregon Observatory | 10:37:15 | -17.1 | AT | Down | 31.6 | 178.7 | Up | 10:22:15 - 10:52:15 | 4335 |
| North Lake | 10:37:12 | -17.4 | AT | Down | 32.3 | 179.4 | Up | 10:22:12 - 10:52:12 | 4305 |
| Dunrhomin | 10:36:01 | -11.3 | NT | Down | 33.6 | 197.4 | Up | 10:21:01 - 10:51:01 | 4296 |
| CU-SBO | 10:36:01 | -11.5 | NT | Down | 33.8 | 197.3 | Up | 10:21:01 - 10:51:01 | 4280 |
| Chiloquin | 10:37:17 | -18.4 | Dark | Down | 33.0 | 178.3 | Up | 10:22:17 - 10:52:17 | 4251 |
| Lakeview | 10:37:10 | -18.0 | AT | Down | 33.4 | 180.0 | Up | 10:22:10 - 10:52:10 | 4249 |
| Klamath Falls | 10:37:17 | -18.6 | Dark | Down | 33.3 | 178.3 | Up | 10:22:17 - 10:52:17 | 4232 |
| Cedarville | 10:37:09 | -18.4 | Dark | Down | 34.0 | 180.2 | Up | 10:22:09 - 10:52:09 | 4212 |
| Fall River/Burney | 10:37:15 | -19.3 | Dark | Down | 34.5 | 178.8 | Up | 10:22:15 - 10:52:15 | 4164 |
| Susanville | 10:37:09 | -19.5 | Dark | Down | 35.1 | 179.6 | Up | 10:22:09 - 10:52:09 | 4135 |
| Gimple | 10:37:12 | -19.8 | Dark | Down | 35.4 | 179.4 | Up | 10:22:12 - 10:52:12 | 4115 |
| Greenville | 10:37:11 | -19.8 | Dark | Down | 35.4 | 179.3 | Up | 10:22:11 - 10:52:11 | 4114 |
| Quincy | 10:37:11 | -20.0 | Dark | Down | 35.6 | 179.3 | Up | 10:22:11 - 10:52:11 | 4101 |
| Portola | 10:37:09 | -19.9 | Dark | Down | 35.7 | 179.8 | Up | 10:22:09 - 10:52:09 | 4100 |
| Reno | 10:37:07 | -19.7 | Dark | Down | 36.0 | 180.6 | Up | 10:22:07 - 10:52:07 | 4092 |
| Carson City | 10:37:06 | -20.0 | Dark | Down | 36.3 | 180.6 | Up | 10:22:06 - 10:52:06 | 4069 |
| Yerington | 10:37:02 | -19.8 | Dark | Down | 36.5 | 181.4 | Up | 10:22:02 - 10:52:02 | 4065 |
| Gardnerville | 10:37:05 | -20.2 | Dark | Down | 36.6 | 180.7 | Up | 10:22:05 - 10:52:05 | 4053 |
| Hawthorne | 10:37:01 | -19.9 | Dark | Down | 37.0 | 182.0 | Up | 10:22:01 - 10:52:01 | 4041 |
| Tonopah | 10:36:53 | -19.5 | Dark | Down | 37.4 | 183.7 | Up | 10:21:53 - 10:51:53 | 4030 |
| Lee Vining | 10:37:02 | -20.6 | Dark | Down | 37.6 | 181.4 | Up | 10:22:02 - 10:52:02 | 3998 |
| Bishop | 10:36:59 | -20.7 | Dark | Down | 38.1 | 182.3 | Up | 10:21:59 - 10:51:59 | 3967 |
| Beatty | 10:36:51 | -20.1 | Dark | Down | 38.5 | 184.3 | Up | 10:21:51 - 10:51:51 | 3958 |
| Indian Springs | 10:36:45 | -19.8 | Dark | Down | 38.8 | 185.7 | Up | 10:21:45 - 10:51:45 | 3949 |
| Henderson | 10:36:41 | -19.8 | Dark | Down | 39.3 | 186.5 | Up | 10:21:41 - 10:51:41 | 3921 |
| Patrick | 10:36:35 | -19.6 | Dark | Down | 39.8 | 188.0 | Up | 10:21:35 - 10:51:35 | 3892 |
| Kingman/Dolan Springs | 10:36:36 | -19.9 | Dark | Down | 40.0 | 187.8 | Up | 10:21:36 - 10:51:36 | 3874 |
| Laughlin/Bullhead City | 10:36:38 | -20.2 | Dark | Down | 40.1 | 187.1 | Up | 10:21:38 - 10:51:38 | 3865 |
| Mohave Valley | 10:36:38 | -20.4 | Dark | Down | 40.4 | 187.2 | Up | 10:21:38 - 10:51:38 | 3846 |
| Lake Havasu City | 10:36:36 | -20.5 | Dark | Down | 40.7 | 187.5 | Up | 10:21:36 - 10:51:36 | 3821 |
| Parker | 10:36:36 | -20.7 | Dark | Down | 41.1 | 187.6 | Up | 10:21:36 - 10:51:36 | 3796 |
| George/Scottsdale | 10:36:25 | -19.6 | Dark | Down | 41.2 | 190.7 | Up | 10:21:25 - 10:51:25 | 3796 |
| Idyllwild | 10:36:48 | -22.4 | Dark | Down | 41.7 | 184.6 | Up | 10:21:48 - 10:51:48 | 3736 |
| Wildwood | 10:36:57 | -23.2 | Dark | Down | 41.4 | 182.2 | Up | 10:21:57 - 10:51:57 | 3735 |
| Calipatria | 10:36:41 | -22.2 | Dark | Down | 42.2 | 186.1 | Up | 10:21:41 - 10:51:41 | 3707 |
| Yuma | 10:36:36 | -21.9 | Dark | Down | 42.5 | 187.3 | Up | 10:21:36 - 10:51:36 | 3687 |
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 04KV18, (2023/05/19 10:36UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 29.13 166 Nunki 18:55:15.9 -26:17:49 2.0 14.00 133 PPM 234386 18:20:08.9 -15:49:55 5.2 1.56 140 PPM 234435 18:22:16.0 -14:23:19 7.7 0.25 139 PPM 234445 18:22:44.7 -14:21:48 8.9 0.16 139 04KV18 18:23:14.6 -14:27:45 17.0 139 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:59:21 UT
Marc W. Buie, Southwest Research Institute