RECON: TNO occultation with 523644

Event between (523644) 10VX11 and star GA0900:00951418 with event index number of 2382018

Geocentric closest approach at 2024/01/22 07:05:13 UTC

J2000 position of star is 06:00:34.1 +00:49:51
Equinox of date position of star is 06:01:48.4 +00:49:48
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon. Moon is 88% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 28.3 AU from the Sun and 27.6 AU from the Earth.
Apparent velocity is 20.6 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is 1007 km.
The sky-plane scale is 19982.7 km/arcsec.

The object has an absolute magnitude Hv=6.3
Diameter=326.6 km assuming a 5% albedo -- 16.1 sec chord
Diameter=133.3 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523644, (2024/01/22 07:07UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:28.5 +07:24:34  0.4  6.71  22
34Del Ori      05:33:14.2 -00:16:59  2.2  7.23  28
60 Ori         06:00:03.9 +00:33:12  5.2  0.52  28
PPM 149697     05:59:09.1 +01:13:30  7.8  0.77  28
PPM 149781     06:02:38.9 +01:09:18  9.3  0.39  28
523644         06:01:48.5 +00:49:48 16.4        28
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 0.0 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 07:04:54 -57.6 Dark Up 32.4 218.0 Up 06:59:37 - 07:10:12 10451
Kamloops 07:05:32 -56.4 Dark Up 38.1 201.8 Up 07:00:15 - 07:10:50 10083
Kelowna 07:05:27 -57.3 Dark Up 38.6 203.2 Up 07:00:09 - 07:10:44 10052
Peachland 07:05:29 -57.4 Dark Up 38.8 202.8 Up 07:00:11 - 07:10:46 10039
Summerland 07:05:27 -57.5 Dark Up 38.9 203.0 Up 07:00:09 - 07:10:44 10032
Penticton 07:05:27 -57.6 Dark Up 39.0 203.2 Up 07:00:09 - 07:10:44 10030
Oliver 07:05:26 -57.9 Dark Up 39.3 203.3 Up 07:00:08 - 07:10:43 10008
Anarchist Mountain Observatory 07:05:25 -58.1 Dark Up 39.4 203.6 Up 07:00:08 - 07:10:43 10002
Okanogan 07:05:24 -58.6 Dark Up 40.1 203.5 Up 07:00:07 - 07:10:42 9956
Brewster 07:05:23 -58.8 Dark Up 40.4 203.3 Up 07:00:06 - 07:10:41 9934
Manson/Chelan 07:05:25 -58.8 Dark Up 40.6 202.9 Up 07:00:07 - 07:10:42 9913
Victoria 07:05:37 -57.1 Dark Up 40.8 198.6 Up 07:00:20 - 07:10:55 9881
Wenatchee 07:05:26 -59.2 Dark Up 41.1 202.9 Up 07:00:09 - 07:10:44 9878
Ellensburg 07:05:23 -59.4 Dark Up 41.6 202.7 Up 07:00:06 - 07:10:41 9846
Yakima 07:05:23 -59.8 Dark Up 41.9 202.8 Up 07:00:06 - 07:10:41 9818
PNWRO 07:05:17 -60.9 Dark Up 42.0 205.2 Up 06:59:59 - 07:10:34 9818
Toppenish/White Swan 07:05:22 -60.0 Dark Up 42.1 203.1 Up 07:00:05 - 07:10:40 9808
Dunrhomin 07:04:16 -69.5 Dark Up 41.1 224.5 Up 06:58:58 - 07:09:33 9744
The Dalles 07:05:22 -60.3 Dark Up 43.0 202.4 Up 07:00:05 - 07:10:40 9737
Nikitin 07:04:16 -69.6 Dark Up 41.2 224.6 Up 06:58:58 - 07:09:33 9730
CU-SBO 07:04:15 -69.7 Dark Up 41.3 224.6 Up 06:58:58 - 07:09:33 9724
Maupin 07:05:22 -60.7 Dark Up 43.4 202.7 Up 07:00:05 - 07:10:40 9711
Sisters 07:05:22 -61.2 Dark Up 44.3 202.3 Up 07:00:05 - 07:10:40 9638
Bend 07:05:20 -61.5 Dark Up 44.5 202.8 Up 07:00:03 - 07:10:38 9627
Oregon Observatory 07:05:20 -61.6 Dark Up 44.7 202.6 Up 07:00:02 - 07:10:37 9612
Chiloquin 07:05:20 -62.4 Dark Up 46.0 202.6 Up 07:00:02 - 07:10:37 9507
Klamath Falls 07:05:18 -62.7 Dark Up 46.3 202.8 Up 07:00:01 - 07:10:36 9484
Cedarville 07:05:11 -64.0 Dark Up 46.5 205.3 Up 06:59:54 - 07:10:29 9473
Fall River/Burney 07:05:15 -63.8 Dark Up 47.3 203.8 Up 06:59:57 - 07:10:32 9407
Gimple 07:05:11 -64.8 Dark Up 47.9 205.0 Up 06:59:54 - 07:10:29 9352
Greenville 07:05:11 -64.7 Dark Up 48.0 204.9 Up 06:59:54 - 07:10:29 9350
Portola 07:05:08 -65.2 Dark Up 48.1 205.7 Up 06:59:50 - 07:10:25 9338
Quincy 07:05:10 -64.9 Dark Up 48.2 205.0 Up 06:59:53 - 07:10:28 9335
Reno 07:05:06 -65.7 Dark Up 48.1 206.7 Up 06:59:48 - 07:10:23 9334
Yerington 07:05:02 -66.5 Dark Up 48.4 207.9 Up 06:59:45 - 07:10:20 9309
Carson City 07:05:04 -66.0 Dark Up 48.5 206.9 Up 06:59:47 - 07:10:22 9307
Gardnerville 07:05:04 -66.2 Dark Up 48.7 207.1 Up 06:59:46 - 07:10:21 9290
Hawthorne 07:04:58 -67.1 Dark Up 48.6 208.9 Up 06:59:40 - 07:10:15 9287
Lee Vining 07:04:58 -67.3 Dark Up 49.3 208.5 Up 06:59:40 - 07:10:15 9231
Beatty 07:04:47 -69.3 Dark Up 49.3 212.4 Up 06:59:30 - 07:10:05 9209
Bishop 07:04:53 -68.1 Dark Up 49.6 209.8 Up 06:59:36 - 07:10:11 9203
Patrick 07:04:32 -71.8 Dark Up 49.2 217.2 Up 06:59:15 - 07:09:50 9168
Laughlin/Bullhead City 07:04:36 -71.7 Dark Up 49.7 216.4 Up 06:59:18 - 07:09:53 9129
George/Scottsdale 07:04:22 -74.1 Dark Up 49.5 221.0 Up 06:59:04 - 07:09:39 9085
Lake Havasu City 07:04:33 -72.3 Dark Up 50.2 217.2 Up 06:59:15 - 07:09:50 9082
Idyllwild 07:04:38 -71.7 Dark Up 51.9 214.5 Up 06:59:21 - 07:09:56 8957
Calipatria 07:04:32 -72.8 Dark Up 51.9 216.6 Up 06:59:15 - 07:09:50 8938
Wildwood 07:04:48 -70.3 Dark Up 52.5 211.6 Up 06:59:31 - 07:10:06 8934
Yuma 07:04:30 -73.6 Dark Up 51.7 218.2 Up 06:59:12 - 07:09:47 8927

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 523644, (2024/01/22 07:07UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  6.71  22
34Del Ori      05:32:00.4 -00:17:57  2.2  7.23  28
60 Ori         05:58:49.6 +00:33:11  5.2  0.52  28
PPM 149697     05:57:54.4 +01:13:27  7.8  0.77  28
PPM 149781     06:01:24.3 +01:09:22  9.3  0.39  28
523644         06:00:34.1 +00:49:51 16.4        28
Positions are for J2000

Event circumstances last updated at 2024/01/08 05:06:34 UT

Marc W. Buie, Southwest Research Institute

RECON