RECON: TNO occultation with 11UJ413

Event between 11UJ413 and star GA0980:01533315 with event index number of 2129347

Geocentric closest approach at 2024/01/11 02:37:14 UTC

J2000 position of star is 06:16:19.4 +09:13:00
Equinox of date position of star is 06:17:38.3 +09:12:25
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 158 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 39.5 AU from the Sun and 38.6 AU from the Earth.
Apparent velocity is 23.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 1552 km.
The sky-plane scale is 27968.7 km/arcsec.

The object has an absolute magnitude Hv=6.8
Diameter=261.8 km assuming a 5% albedo -- 11.0 sec chord
Diameter=106.9 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 11UJ413, (2024/01/11 02:37UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:28.4 +07:24:34  0.4  5.54 154
Alhena         06:39:06.0 +16:22:36  1.9  8.87 167
75 Ori         06:18:26.1 +09:55:54  5.4  0.75 159
PPM 150201     06:17:36.8 +09:01:04  7.9  0.19 158
11UJ413        06:17:38.5 +09:12:25 17.0       158
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 31.2 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:39:49 -30.6 Dark Down 31.1 118.1 Up 02:24:49 - 02:54:49 9330
Kamloops 02:40:17 -21.6 Dark Down 23.3 104.5 Low 02:25:17 - 02:55:17 9255
Kelowna 02:40:17 -22.1 Dark Down 24.1 104.9 Low 02:25:17 - 02:55:17 9180
Peachland 02:40:19 -21.9 Dark Down 23.9 104.6 Low 02:25:19 - 02:55:19 9171
Summerland 02:40:19 -21.9 Dark Down 24.0 104.6 Low 02:25:19 - 02:55:19 9158
Penticton 02:40:19 -22.0 Dark Down 24.1 104.7 Low 02:25:19 - 02:55:19 9151
Oliver 02:40:20 -21.9 Dark Down 24.2 104.6 Low 02:25:20 - 02:55:20 9120
Anarchist Mountain Observatory 02:40:20 -22.0 Dark Down 24.4 104.7 Low 02:25:20 - 02:55:20 9104
Victoria 02:40:27 -19.3 Dark Down 21.9 101.2 Low 02:25:27 - 02:55:27 9083
Okanogan 02:40:21 -21.8 Dark Down 24.4 104.2 Low 02:25:21 - 02:55:21 9047
Brewster 02:40:23 -21.6 Dark Down 24.3 103.9 Low 02:25:23 - 02:55:23 9024
Manson/Chelan 02:40:24 -21.3 Dark Down 24.1 103.5 Low 02:25:24 - 02:55:24 9007
Wenatchee 02:40:26 -21.1 Dark Down 24.1 103.2 Low 02:25:26 - 02:55:26 8965
Ellensburg 02:40:26 -20.9 Dark Down 24.1 102.8 Low 02:25:26 - 02:55:26 8929
Yakima 02:40:28 -20.9 Dark Down 24.2 102.6 Low 02:25:28 - 02:55:28 8892
Toppenish/White Swan 02:40:28 -20.9 Dark Down 24.3 102.7 Low 02:25:28 - 02:55:28 8871
PNWRO 02:40:27 -21.9 Dark Down 25.4 103.7 Low 02:25:27 - 02:55:27 8829
The Dalles 02:40:31 -20.3 Dark Down 24.0 101.7 Low 02:25:31 - 02:55:31 8804
Maupin 02:40:32 -20.2 Dark Down 24.1 101.6 Low 02:25:32 - 02:55:32 8764
Sisters 02:40:35 -19.7 Dark Down 24.0 100.9 Low 02:25:35 - 02:55:35 8686
Bend 02:40:36 -19.9 Dark Down 24.2 101.0 Low 02:25:36 - 02:55:36 8662
Oregon Observatory 02:40:36 -19.7 Dark Down 24.1 100.8 Low 02:25:36 - 02:55:36 8646
Chiloquin 02:40:38 -19.2 Dark Down 24.1 99.9 Low 02:25:38 - 02:55:38 8524
Klamath Falls 02:40:40 -19.2 Dark Down 24.2 99.8 Low 02:25:40 - 02:55:40 8490
Cedarville 02:40:39 -20.2 Dark Down 25.5 100.7 Low 02:25:39 - 02:55:39 8413
Fall River/Burney 02:40:42 -19.2 Dark Down 24.7 99.6 Low 02:25:42 - 02:55:42 8374
Greenville 02:40:43 -19.3 Dark Down 25.2 99.5 Low 02:25:43 - 02:55:43 8283
Gimple 02:40:43 -19.4 Dark Down 25.2 99.5 Low 02:25:43 - 02:55:43 8282
Quincy 02:40:44 -19.3 Dark Down 25.2 99.4 Low 02:25:44 - 02:55:44 8263
Portola 02:40:43 -19.6 Dark Down 25.6 99.7 Low 02:25:43 - 02:55:43 8248
Dunrhomin 02:40:12 -31.2 Dark Down 36.7 111.6 Up 02:25:12 - 02:55:12 8232
Reno 02:40:43 -20.1 Dark Down 26.1 100.0 Low 02:25:43 - 02:55:43 8217
Nikitin 02:40:12 -31.2 Dark Down 36.7 111.5 Up 02:25:12 - 02:55:12 8214
CU-SBO 02:40:12 -31.1 Dark Down 36.7 111.4 Up 02:25:12 - 02:55:12 8207
Carson City 02:40:43 -20.0 Dark Down 26.2 99.8 Low 02:25:43 - 02:55:43 8182
Yerington 02:40:42 -20.4 Dark Down 26.7 100.2 Low 02:25:42 - 02:55:42 8159
Gardnerville 02:40:44 -20.0 Dark Down 26.3 99.8 Low 02:25:44 - 02:55:44 8157
Hawthorne 02:40:43 -20.7 Dark Down 27.2 100.3 Low 02:25:43 - 02:55:43 8110
Lee Vining 02:40:44 -20.2 Dark Down 26.9 99.7 Low 02:25:44 - 02:55:44 8056
Bishop 02:40:44 -20.7 Dark Down 27.6 99.9 Low 02:25:44 - 02:55:44 7992
Beatty 02:40:43 -21.9 Dark Down 29.0 100.8 Low 02:25:43 - 02:55:43 7936
Patrick 02:40:39 -23.8 Dark Down 31.5 101.9 Up 02:25:39 - 02:55:39 7770
Laughlin/Bullhead City 02:40:41 -23.2 Dark Down 31.0 101.3 Up 02:25:41 - 02:55:41 7748
Lake Havasu City 02:40:41 -23.3 Dark Down 31.4 101.0 Up 02:25:41 - 02:55:41 7678
Wildwood 02:40:50 -19.8 Dark Down 28.0 98.1 Low 02:25:50 - 02:55:50 7660
Idyllwild 02:40:47 -21.2 Dark Down 29.6 99.1 Low 02:25:47 - 02:55:47 7613
George/Scottsdale 02:40:37 -25.2 Dark Down 33.5 102.2 Up 02:25:37 - 02:55:37 7587
Calipatria 02:40:45 -22.1 Dark Down 30.6 99.4 Up 02:25:45 - 02:55:45 7543
Yuma 02:40:45 -22.7 Dark Down 31.5 99.8 Up 02:25:45 - 02:55:45 7493

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, (2024/01/11 02:37UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  5.54 154
Alhena         06:37:42.8 +16:23:57  1.9  8.87 167
75 Ori         06:17:06.6 +09:56:31  5.4  0.75 159
PPM 150201     06:16:17.9 +09:01:40  7.9  0.19 158
11UJ413        06:16:19.4 +09:13:00 17.0       158
Positions are for J2000

Event circumstances last updated at 2023/12/16 05:08:09 UT

Marc W. Buie, Southwest Research Institute

RECON