RECON: TNO occultation with 11UJ413

Event between 11UJ413 and star GA0980:01487414 with event index number of 2129355

Geocentric closest approach at 2024/02/07 10:00:40 UTC

J2000 position of star is 06:14:23.6 +09:20:17
Equinox of date position of star is 06:15:42.5 +09:19:46
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon. Moon is 9% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 39.5 AU from the Sun and 38.8 AU from the Earth.
Apparent velocity is 17.5 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 211 seconds.
The 1-sigma cross-track error in the shadow position is 2416 km.
The sky-plane scale is 28147.8 km/arcsec.

The object has an absolute magnitude Hv=6.8
Diameter=261.8 km assuming a 5% albedo -- 15.0 sec chord
Diameter=106.9 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 11UJ413, (2024/02/07 10:01UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:28.6 +07:24:34  0.4  5.13 155
Alhena         06:39:06.2 +16:22:36  1.9  9.06 168
75 Ori         06:18:26.4 +09:55:54  5.4  0.90 160
PPM 150167     06:16:43.7 +09:44:59  8.4  0.49 159
PPM 150177     06:16:55.5 +09:00:26  9.4  0.44 159
PPM 150131     06:15:36.5 +09:37:50 10.1  0.30 159
11UJ413        06:15:43.0 +09:19:46 16.2       159
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 4.3 sigma about the mid-time.
The median site spacing is 55.5 km RECON observability=0.1 and success probability=4.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:58:57 -41.4 Dark Down 9.0 273.6 Really Low 09:43:57 - 10:13:57 2065
Kamloops 09:58:55 -49.1 Dark Down 18.1 262.6 Really Low 09:43:55 - 10:13:55 1801
Kelowna 09:58:49 -49.3 Dark Down 17.6 263.5 Really Low 09:43:49 - 10:13:49 1785
Peachland 09:58:48 -49.5 Dark Down 17.8 263.3 Really Low 09:43:48 - 10:13:48 1776
Summerland 09:58:47 -49.6 Dark Down 17.8 263.4 Really Low 09:43:47 - 10:13:47 1772
Penticton 09:58:47 -49.6 Dark Down 17.7 263.6 Really Low 09:43:47 - 10:13:47 1771
Oliver 09:58:45 -49.9 Dark Down 17.8 263.7 Really Low 09:43:45 - 10:13:45 1757
Anarchist Mountain Observatory 09:58:44 -49.9 Dark Down 17.7 263.9 Really Low 09:43:44 - 10:13:44 1754
Okanogan 09:58:41 -50.5 Dark Down 17.9 263.9 Really Low 09:43:41 - 10:13:41 1722
Brewster 09:58:39 -50.8 Dark Down 18.1 263.8 Really Low 09:43:39 - 10:13:39 1707
Manson/Chelan 09:58:38 -51.1 Dark Down 18.3 263.6 Really Low 09:43:38 - 10:13:38 1691
Wenatchee 09:58:36 -51.5 Dark Down 18.5 263.6 Really Low 09:43:36 - 10:13:36 1667
Victoria 09:58:45 -52.0 Dark Down 20.4 260.9 Low 09:43:45 - 10:13:45 1655
Ellensburg 09:58:33 -51.9 Dark Down 18.7 263.6 Really Low 09:43:33 - 10:13:33 1645
PNWRO 09:58:27 -51.9 Dark Down 17.7 265.1 Really Low 09:43:27 - 10:13:27 1632
Yakima 09:58:31 -52.3 Dark Down 18.8 263.7 Really Low 09:43:31 - 10:13:31 1626
Toppenish/White Swan 09:58:30 -52.3 Dark Down 18.7 263.9 Really Low 09:43:30 - 10:13:30 1620
Dunrhomin 09:57:48 -46.8 Dark Down 7.7 275.7 Really Low 09:42:48 - 10:12:48 1586
Nikitin 09:57:47 -46.9 Dark Down 7.7 275.7 Really Low 09:42:47 - 10:12:47 1577
CU-SBO 09:57:46 -47.0 Dark Down 7.8 275.7 Really Low 09:42:46 - 10:12:46 1572
The Dalles 09:58:26 -53.3 Dark Down 19.3 263.5 Really Low 09:43:26 - 10:13:26 1568
Maupin 09:58:24 -53.5 Dark Down 19.3 263.8 Really Low 09:43:24 - 10:13:24 1550
Sisters 09:58:19 -54.4 Dark Down 19.8 263.7 Really Low 09:43:19 - 10:13:19 1497
Bend 09:58:18 -54.5 Dark Down 19.6 264.0 Really Low 09:43:18 - 10:13:18 1491
Oregon Observatory 09:58:17 -54.7 Dark Down 19.7 263.9 Really Low 09:43:17 - 10:13:17 1480
Chiloquin 09:58:10 -55.8 Dark Down 20.2 264.1 Low 09:43:10 - 10:13:10 1403
Klamath Falls 09:58:08 -56.0 Dark Down 20.2 264.3 Low 09:43:08 - 10:13:08 1387
Cedarville 09:58:02 -55.7 Dark Down 19.1 265.6 Really Low 09:43:02 - 10:13:02 1384
Fall River/Burney 09:58:01 -56.7 Dark Down 20.0 264.9 Low 09:43:01 - 10:13:01 1331
Gimple 09:57:55 -57.0 Dark Down 19.7 265.6 Really Low 09:42:55 - 10:12:55 1293
Greenville 09:57:55 -57.0 Dark Down 19.8 265.6 Really Low 09:42:55 - 10:12:55 1291
Portola 09:57:53 -57.0 Dark Down 19.4 266.0 Really Low 09:42:53 - 10:12:53 1283
Reno 09:57:51 -56.8 Dark Down 19.0 266.5 Really Low 09:42:51 - 10:12:51 1282
Quincy 09:57:54 -57.2 Dark Down 19.8 265.6 Really Low 09:42:54 - 10:12:54 1280
Yerington 09:57:47 -56.7 Dark Down 18.5 267.1 Really Low 09:42:47 - 10:12:47 1265
Carson City 09:57:49 -57.0 Dark Down 19.0 266.6 Really Low 09:42:49 - 10:12:49 1263
Hawthorne 09:57:44 -56.7 Dark Down 18.1 267.6 Really Low 09:42:44 - 10:12:44 1250
Gardnerville 09:57:48 -57.1 Dark Down 18.9 266.7 Really Low 09:42:48 - 10:12:48 1250
Lee Vining 09:57:41 -57.3 Dark Down 18.5 267.5 Really Low 09:42:41 - 10:12:41 1206
Beatty 09:57:34 -56.4 Dark Down 16.7 269.2 Really Low 09:42:34 - 10:12:34 1193
Bishop 09:57:38 -57.2 Dark Down 18.0 268.1 Really Low 09:42:38 - 10:12:38 1186
Patrick 09:57:24 -55.1 Dark Down 14.4 271.3 Really Low 09:42:24 - 10:12:24 1163
Laughlin/Bullhead City 09:57:22 -55.8 Dark Down 15.0 271.0 Really Low 09:42:22 - 10:12:22 1132
George/Scottsdale 09:57:14 -54.4 Dark Down 12.7 272.8 Really Low 09:42:14 - 10:12:14 1096
Lake Havasu City 09:57:19 -55.9 Dark Down 14.8 271.3 Really Low 09:42:19 - 10:12:19 1096
Idyllwild 09:57:17 -58.0 Dark Down 16.7 270.2 Really Low 09:42:17 - 10:12:17 997
Calipatria 09:57:13 -57.4 Dark Down 15.8 271.0 Really Low 09:42:13 - 10:12:13 982
Wildwood 09:57:21 -59.2 Dark Down 18.3 269.0 Really Low 09:42:21 - 10:12:21 977
Yuma 09:57:10 -56.9 Dark Down 15.0 271.6 Really Low 09:42:10 - 10:12:10 973

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 11UJ413, (2024/02/07 10:01UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  5.13 155
Alhena         06:37:42.8 +16:23:57  1.9  9.06 168
75 Ori         06:17:06.6 +09:56:31  5.4  0.90 160
PPM 150167     06:15:24.0 +09:45:33  8.4  0.49 159
PPM 150177     06:15:36.3 +09:01:00  9.4  0.44 159
PPM 150131     06:14:16.9 +09:38:21 10.1  0.30 159
11UJ413        06:14:23.6 +09:20:17 16.2       159
Positions are for J2000

Event circumstances last updated at 2023/12/16 05:08:37 UT

Marc W. Buie, Southwest Research Institute

RECON