Event between (523757) 14WH509 and star GA1220:03376104 with event index number of 2294790
Geocentric closest approach at 2022/05/19 05:44:55 UTC
J2000 position of star is 09:00:26.9 +32:14:42
Equinox of date position of star is 09:01:48.6 +32:09:25
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 87% illuminated.
TNO apparent brightness V=21.7
[RECON map]
TNO is 43.1 AU from the Sun
and 43.4 AU from the Earth.
The TNO is moving 15.3
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 126 seconds.
The 1-sigma cross-track error in the shadow position is
1665 km.
The sky-plane scale is
31491.3 km/arcsec.
The TNO has an absolute magnitude Hv=5.2
Diameter=549.6 km assuming a 5% albedo -- 36.4 sec chord
Diameter=224.4 km assuming a 30% albedo -- 14.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 523757, (2022/05/19 05:44UT) Object RA Dec mag sep mel Pollux 07:46:41.0 +27:58:13 1.1 16.76 168 66 Cnc 09:02:46.1 +32:09:49 5.9 0.20 151 PPM 074123 08:58:40.9 +32:21:29 7.4 0.69 152 PPM 074170 09:02:04.2 +32:02:52 9.1 0.12 151 PPM 074157 09:01:21.5 +32:05:27 11.3 0.12 151 523757 09:01:49.0 +32:09:23 13.1 151 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 3.3 km
RECON observability=0.9 and success probability=7.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Dunrhomin | 05:46:44 | -27.8 | Dark | Up | 24.8 | 292.2 | Low | 05:35:43 - 05:57:45 | -1953 |
| CU-SBO | 05:46:46 | -28.0 | Dark | Up | 24.8 | 292.3 | Low | 05:35:45 - 05:57:47 | -1960 |
| Sleaford | 05:45:24 | -16.3 | AT | Down | 29.4 | 285.8 | Low | 05:34:23 - 05:56:25 | -1974 |
| George/Scottsdale | 05:47:37 | -31.8 | Dark | Down | 27.2 | 292.2 | Low | 05:36:36 - 05:58:38 | -2373 |
| Patrick | 05:47:27 | -29.5 | Dark | Down | 29.4 | 290.6 | Low | 05:36:26 - 05:58:28 | -2434 |
| Kingman/Dolan Springs | 05:47:29 | -29.6 | Dark | Down | 29.4 | 290.6 | Low | 05:36:28 - 05:58:30 | -2449 |
| Laughlin/Bullhead City | 05:47:31 | -29.5 | Dark | Down | 29.8 | 290.4 | Low | 05:36:30 - 05:58:32 | -2477 |
| Henderson | 05:47:23 | -28.5 | Dark | Down | 30.4 | 289.7 | Up | 05:36:22 - 05:58:24 | -2477 |
| Lake Havasu City | 05:47:36 | -30.2 | Dark | Down | 29.3 | 290.9 | Low | 05:36:35 - 05:58:37 | -2480 |
| Mohave Valley | 05:47:31 | -29.7 | Dark | Down | 29.7 | 290.6 | Low | 05:36:30 - 05:58:32 | -2483 |
| Parker | 05:47:36 | -30.5 | Dark | Down | 29.2 | 291.1 | Low | 05:36:35 - 05:58:37 | -2488 |
| Indian Springs | 05:47:21 | -27.8 | Dark | Down | 31.1 | 289.1 | Up | 05:36:20 - 05:58:22 | -2501 |
| PNWRO | 05:46:16 | -18.3 | Dark | Down | 36.2 | 281.2 | Up | 05:35:15 - 05:57:17 | -2504 |
| Kelowna | 05:45:36 | -14.8 | AT | Down | 37.3 | 277.9 | Up | 05:34:35 - 05:56:37 | -2506 |
| Penticton | 05:45:36 | -15.0 | AT | Down | 37.3 | 278.1 | Up | 05:34:35 - 05:56:37 | -2515 |
| Anarchist Mountain Observatory | 05:45:36 | -15.5 | AT | Down | 37.1 | 278.6 | Up | 05:34:35 - 05:56:37 | -2515 |
| Summerland | 05:45:36 | -14.9 | AT | Down | 37.4 | 277.9 | Up | 05:34:35 - 05:56:37 | -2519 |
| Peachland | 05:45:36 | -14.8 | AT | Down | 37.5 | 277.8 | Up | 05:34:35 - 05:56:37 | -2521 |
| Oliver | 05:45:36 | -15.3 | AT | Down | 37.3 | 278.3 | Up | 05:34:35 - 05:56:37 | -2521 |
| Tonasket | 05:45:36 | -15.8 | AT | Down | 37.1 | 278.8 | Up | 05:34:35 - 05:56:37 | -2525 |
| Kamloops | 05:45:36 | -13.8 | AT | Down | 38.0 | 276.6 | Up | 05:34:35 - 05:56:37 | -2536 |
| Okanogan | 05:45:36 | -16.0 | AT | Down | 37.1 | 278.9 | Up | 05:34:35 - 05:56:37 | -2540 |
| Yuma | 05:47:46 | -31.6 | Dark | Down | 28.9 | 291.7 | Low | 05:36:45 - 05:58:47 | -2544 |
| Tonopah | 05:47:12 | -25.9 | Dark | Down | 32.8 | 287.5 | Up | 05:36:11 - 05:58:13 | -2547 |
| Beatty | 05:47:20 | -27.1 | Dark | Down | 32.1 | 288.5 | Up | 05:36:19 - 05:58:21 | -2550 |
| Brewster | 05:45:36 | -16.2 | AT | Down | 37.2 | 279.0 | Up | 05:34:35 - 05:56:37 | -2556 |
| Manson/Chelan | 05:45:36 | -16.2 | AT | Down | 37.5 | 278.9 | Up | 05:34:35 - 05:56:37 | -2578 |
| Calipatria | 05:47:44 | -30.9 | Dark | Down | 29.8 | 291.1 | Low | 05:36:43 - 05:58:45 | -2580 |
| Goldendale | 05:46:18 | -17.8 | AT | Down | 37.4 | 280.2 | Up | 05:35:17 - 05:57:19 | -2598 |
| Wenatchee | 05:45:36 | -16.5 | AT | Down | 37.5 | 279.2 | Up | 05:34:35 - 05:56:37 | -2600 |
| Hawthorne | 05:47:09 | -24.9 | Dark | Down | 34.0 | 286.6 | Up | 05:36:08 - 05:58:10 | -2612 |
| The Dalles | 05:46:20 | -17.8 | AT | Down | 37.6 | 280.1 | Up | 05:35:19 - 05:57:21 | -2620 |
| Maupin | 05:46:23 | -18.2 | Dark | Down | 37.5 | 280.5 | Up | 05:35:22 - 05:57:24 | -2620 |
| Ellensburg | 05:45:36 | -16.8 | AT | Down | 37.6 | 279.3 | Up | 05:34:35 - 05:56:37 | -2623 |
| Bishop | 05:47:17 | -26.0 | Dark | Down | 33.5 | 287.5 | Up | 05:36:16 - 05:58:18 | -2626 |
| Idyllwild | 05:47:40 | -29.8 | Dark | Down | 30.9 | 290.4 | Up | 05:36:39 - 05:58:41 | -2626 |
| Lakeview | 05:46:44 | -21.0 | Dark | Down | 36.3 | 283.2 | Up | 05:35:43 - 05:57:45 | -2629 |
| Yerington | 05:47:06 | -24.3 | Dark | Down | 34.6 | 286.0 | Up | 05:36:05 - 05:58:07 | -2630 |
| Cedarville | 05:46:48 | -21.7 | Dark | Down | 36.0 | 283.7 | Up | 05:35:47 - 05:57:49 | -2632 |
| Toppenish/White Swan | 05:45:36 | -17.4 | AT | Down | 37.4 | 279.9 | Up | 05:34:35 - 05:56:37 | -2637 |
| Yakima | 05:45:36 | -17.2 | AT | Down | 37.5 | 279.6 | Up | 05:34:35 - 05:56:37 | -2637 |
| North Lake | 05:46:36 | -19.9 | Dark | Down | 36.9 | 282.1 | Up | 05:35:35 - 05:57:37 | -2640 |
| Bend | 05:46:32 | -19.1 | Dark | Down | 37.4 | 281.2 | Up | 05:35:31 - 05:57:33 | -2648 |
| Lee Vining | 05:47:14 | -25.2 | Dark | Down | 34.2 | 286.7 | Up | 05:36:13 - 05:58:15 | -2650 |
| Reno | 05:47:02 | -23.5 | Dark | Down | 35.2 | 285.3 | Up | 05:36:01 - 05:58:03 | -2653 |
| Oregon Observatory | 05:46:32 | -19.2 | Dark | Down | 37.5 | 281.3 | Up | 05:35:31 - 05:57:33 | -2657 |
| Sisters | 05:46:30 | -18.8 | Dark | Down | 37.7 | 280.9 | Up | 05:35:29 - 05:57:31 | -2657 |
| Carson City | 05:47:06 | -23.8 | Dark | Down | 35.1 | 285.6 | Up | 05:36:05 - 05:58:07 | -2659 |
| Gardnerville | 05:47:07 | -24.1 | Dark | Down | 35.0 | 285.8 | Up | 05:36:06 - 05:58:08 | -2662 |
| Susanville | 05:46:56 | -22.4 | Dark | Down | 36.1 | 284.3 | Up | 05:35:55 - 05:57:57 | -2679 |
| Portola | 05:47:01 | -23.0 | Dark | Down | 35.8 | 284.8 | Up | 05:36:00 - 05:58:02 | -2682 |
| Gimple | 05:46:58 | -22.6 | Dark | Down | 36.1 | 284.4 | Up | 05:35:57 - 05:57:59 | -2696 |
| Greenville | 05:46:58 | -22.5 | Dark | Down | 36.2 | 284.3 | Up | 05:35:57 - 05:57:59 | -2701 |
| Chiloquin | 05:46:41 | -20.1 | Dark | Down | 37.5 | 282.0 | Up | 05:35:40 - 05:57:42 | -2701 |
| Klamath Falls | 05:46:46 | -20.4 | Dark | Down | 37.3 | 282.4 | Up | 05:35:45 - 05:57:47 | -2703 |
| Quincy | 05:47:00 | -22.7 | Dark | Down | 36.1 | 284.5 | Up | 05:35:59 - 05:58:01 | -2705 |
| Fall River/Burney | 05:46:52 | -21.6 | Dark | Down | 36.8 | 283.4 | Up | 05:35:51 - 05:57:53 | -2706 |
| Victoria | 05:45:36 | -14.5 | AT | Down | 39.7 | 276.2 | Up | 05:34:35 - 05:56:37 | -2714 |
| Wildwood | 05:47:41 | -28.7 | Dark | Down | 32.5 | 289.4 | Up | 05:36:40 - 05:58:42 | -2721 |
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 523757, (2022/05/19 05:44UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 16.76 168 66 Cnc 09:01:24.1 +32:15:09 5.9 0.20 151 PPM 074123 08:57:18.5 +32:26:43 7.4 0.69 152 PPM 074170 09:00:42.2 +32:08:11 9.1 0.12 151 PPM 074157 08:59:59.4 +32:10:45 11.3 0.12 151 523757 09:00:26.9 +32:14:42 13.1 151 Positions are for J2000
Event circumstances last updated at 2022/04/10 23:05:28 UT
Marc W. Buie, Southwest Research Institute