RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA1260:03126466 with event index number of 2655299

Geocentric closest approach at 2024/12/30 11:35:29 UTC

J2000 position of star is 07:22:32.1 +37:32:05
Equinox of date position of star is 07:24:10.7 +37:29:11
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 164 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=17.7

[RECON map]
Object is 8.8 AU from the Sun and 7.9 AU from the Earth.
Apparent velocity is 39.7 km/sec on the sky relative to the star, or, 25.0 arcsec/hr.
The 1-sigma error in the time of the event is 8 seconds.
The 1-sigma cross-track error in the shadow position is 390 km.
The sky-plane scale is 5706.1 km/arcsec.

The object has an absolute magnitude Hv=8.3
Diameter=128.2 km assuming a 5% albedo -- 3.4 sec chord
Diameter=52.4 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2024/12/30 11:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.7 +27:57:50  1.1 10.64 161
65 Aur         07:23:42.6 +36:42:40  5.1  0.78 164
PPM 072702     07:23:11.9 +37:36:48  7.7  0.24 164
468861         07:24:13.0 +37:29:07 16.7       163
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 30.1 km RECON observability=1.0 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:34:00 -32.1 Dark Down 48.6 272.4 Up 11:32:50 - 11:35:09 3332
Kamloops 11:34:16 -41.2 Dark Down 57.7 262.5 Up 11:33:06 - 11:35:25 2814
Kelowna 11:34:14 -40.8 Dark Down 57.2 264.5 Up 11:33:04 - 11:35:23 2752
Peachland 11:34:14 -41.0 Dark Down 57.4 264.5 Up 11:33:04 - 11:35:23 2734
Summerland 11:34:13 -41.0 Dark Down 57.3 264.8 Up 11:33:04 - 11:35:23 2721
Penticton 11:34:13 -40.9 Dark Down 57.3 265.0 Up 11:33:04 - 11:35:23 2717
Oliver 11:34:13 -41.0 Dark Down 57.3 265.5 Up 11:33:03 - 11:35:22 2681
Anarchist Mountain Observatory 11:34:12 -40.9 Dark Down 57.2 265.9 Up 11:33:03 - 11:35:22 2669
Okanogan 11:34:12 -41.2 Dark Down 57.4 266.8 Up 11:33:03 - 11:35:22 2598
Brewster 11:34:12 -41.4 Dark Down 57.5 267.0 Up 11:33:03 - 11:35:22 2566
Manson/Chelan 11:34:12 -41.7 Dark Down 57.8 267.0 Up 11:33:03 - 11:35:22 2535
Victoria 11:34:18 -43.6 Dark Down 59.9 263.3 Up 11:33:08 - 11:35:27 2527
Wenatchee 11:34:12 -41.9 Dark Down 57.9 267.7 Up 11:33:03 - 11:35:22 2483
Ellensburg 11:34:12 -42.1 Dark Down 58.1 268.2 Up 11:33:03 - 11:35:22 2435
Yakima 11:34:12 -42.2 Dark Down 58.1 268.8 Up 11:33:02 - 11:35:21 2393
Toppenish/White Swan 11:34:11 -42.1 Dark Down 58.0 269.3 Up 11:33:02 - 11:35:21 2375
PNWRO 11:34:08 -41.2 Dark Down 57.0 270.9 Up 11:32:59 - 11:35:18 2374
The Dalles 11:34:12 -42.8 Dark Down 58.6 270.0 Up 11:33:02 - 11:35:21 2275
Maupin 11:34:11 -42.8 Dark Down 58.5 270.7 Up 11:33:01 - 11:35:20 2234
Dunrhomin 11:33:42 -31.4 Dark Down 46.3 285.6 Up 11:32:33 - 11:34:52 2234
Nikitin 11:33:42 -31.4 Dark Down 46.3 285.8 Up 11:32:33 - 11:34:52 2215
CU-SBO 11:33:42 -31.5 Dark Down 46.3 285.8 Up 11:32:33 - 11:34:52 2206
Sisters 11:34:11 -43.3 Dark Down 58.8 271.8 Up 11:33:01 - 11:35:20 2131
Bend 11:34:10 -43.2 Dark Down 58.6 272.4 Up 11:33:01 - 11:35:20 2113
Oregon Observatory 11:34:10 -43.3 Dark Down 58.7 272.6 Up 11:33:01 - 11:35:20 2091
Chiloquin 11:34:10 -43.8 Dark Down 58.9 274.5 Up 11:33:00 - 11:35:19 1943
Klamath Falls 11:34:09 -43.8 Dark Down 58.8 275.1 Up 11:33:00 - 11:35:19 1909
Cedarville 11:34:06 -42.7 Dark Down 57.6 277.1 Up 11:32:56 - 11:35:15 1878
Fall River/Burney 11:34:07 -43.6 Dark Down 58.4 277.2 Up 11:32:58 - 11:35:17 1796
Gimple 11:34:06 -43.3 Dark Down 57.9 278.9 Up 11:32:56 - 11:35:15 1714
Greenville 11:34:06 -43.4 Dark Down 58.0 278.9 Up 11:32:56 - 11:35:15 1712
Quincy 11:34:06 -43.4 Dark Down 57.9 279.2 Up 11:32:56 - 11:35:15 1691
Portola 11:34:05 -43.1 Dark Down 57.6 279.6 Up 11:32:55 - 11:35:14 1691
Reno 11:34:03 -42.6 Dark Down 57.0 280.3 Up 11:32:54 - 11:35:13 1681
Carson City 11:34:03 -42.6 Dark Down 57.0 280.9 Up 11:32:54 - 11:35:13 1644
Yerington 11:34:02 -42.1 Dark Down 56.4 281.4 Up 11:32:52 - 11:35:11 1641
Gardnerville 11:34:03 -42.6 Dark Down 56.9 281.2 Up 11:32:53 - 11:35:12 1619
Hawthorne 11:34:01 -41.7 Dark Down 55.9 282.3 Up 11:32:51 - 11:35:10 1608
Lee Vining 11:34:01 -42.1 Dark Down 56.2 282.9 Up 11:32:51 - 11:35:10 1535
Beatty 11:33:56 -40.3 Dark Down 54.1 285.2 Up 11:32:46 - 11:35:05 1495
Bishop 11:33:59 -41.6 Dark Down 55.5 284.0 Up 11:32:50 - 11:35:09 1494
Patrick 11:33:50 -37.9 Dark Down 51.5 287.9 Up 11:32:40 - 11:34:59 1435
Laughlin/Bullhead City 11:33:51 -38.5 Dark Down 52.0 288.0 Up 11:32:41 - 11:35:00 1386
George/Scottsdale 11:33:45 -36.1 Dark Down 49.4 290.3 Up 11:32:35 - 11:34:54 1332
Lake Havasu City 11:33:50 -38.2 Dark Down 51.5 288.9 Up 11:32:40 - 11:34:59 1326
Idyllwild 11:33:53 -40.2 Dark Down 53.2 289.3 Up 11:32:44 - 11:35:03 1168
Wildwood 11:33:57 -41.7 Dark Down 54.7 288.5 Up 11:32:47 - 11:35:06 1146
Calipatria 11:33:51 -39.1 Dark Down 52.0 290.3 Up 11:32:41 - 11:35:00 1144
Yuma 11:33:49 -38.4 Dark Down 51.2 290.9 Up 11:32:39 - 11:34:58 1129

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 468861, (2024/12/30 11:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 10.64 161
65 Aur         07:22:02.4 +36:45:38  5.1  0.78 164
PPM 072702     07:21:30.9 +37:39:44  7.7  0.24 164
468861         07:22:32.1 +37:32:05 16.7       164
Positions are for J2000

Event circumstances last updated at 2024/06/12 03:41:43 UT

Marc W. Buie, Southwest Research Institute

RECON