RECON: TNO occultation with 523752

Event between (523752) 14VU37 and star GA1080:00722731 with event index number of 2615169

Geocentric closest approach at 2024/01/03 09:05:53 UTC

J2000 position of star is 04:53:23.4 +18:49:12
Equinox of date position of star is 04:54:47.6 +18:51:28
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 57% illuminated.
Apparent brightness V=21.3

[RECON map]
Object is 42.3 AU from the Sun and 41.4 AU from the Earth.
Apparent velocity is 22.8 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is 1528 km.
The sky-plane scale is 30047.1 km/arcsec.

The object has an absolute magnitude Hv=5.0
Diameter=586.2 km assuming a 5% albedo -- 26.5 sec chord
Diameter=239.3 km assuming a 30% albedo -- 10.8 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 523752, (2024/01/03 09:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.1 +16:33:20  0.8  4.76 114
Alnath         05:27:48.7 +28:37:32  1.6 12.34 101
97 Tau         04:52:46.9 +18:52:43  5.1  0.48 110
PPM 120385     04:56:23.2 +19:31:20  7.2  0.76 109
PPM 120359     04:55:00.0 +19:06:38  8.9  0.26 110
523752         04:54:47.7 +18:51:28 16.0       110
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 14.8 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 09:03:00 -53.4 Dark Up 33.7 257.0 Up 08:56:27 - 09:09:32 -5026
Kamloops 09:03:25 -60.0 Dark Up 42.6 244.5 Up 08:56:53 - 09:09:58 -5304
Kelowna 09:03:21 -60.4 Dark Up 42.4 246.1 Up 08:56:48 - 09:09:53 -5375
Peachland 09:03:22 -60.6 Dark Up 42.6 245.9 Up 08:56:50 - 09:09:55 -5388
Summerland 09:03:21 -60.7 Dark Up 42.6 246.1 Up 08:56:48 - 09:09:53 -5401
Penticton 09:03:21 -60.8 Dark Up 42.6 246.3 Up 08:56:49 - 09:09:54 -5407
Oliver 09:03:20 -61.1 Dark Up 42.7 246.6 Up 08:56:47 - 09:09:52 -5441
Anarchist Mountain Observatory 09:03:19 -61.1 Dark Up 42.7 246.9 Up 08:56:47 - 09:09:52 -5456
Okanogan 09:03:19 -61.8 Dark Up 43.1 247.3 Up 08:56:46 - 09:09:51 -5520
Victoria 09:03:28 -62.8 Dark Up 45.3 243.3 Up 08:56:56 - 09:10:01 -5533
Brewster 09:03:19 -62.1 Dark Up 43.3 247.3 Up 08:56:46 - 09:09:51 -5548
Manson/Chelan 09:03:19 -62.4 Dark Up 43.6 247.1 Up 08:56:47 - 09:09:52 -5572
Wenatchee 09:03:19 -62.9 Dark Up 43.9 247.4 Up 08:56:46 - 09:09:51 -5620
Ellensburg 09:03:18 -63.3 Dark Up 44.2 247.5 Up 08:56:46 - 09:09:51 -5662
Yakima 09:03:18 -63.6 Dark Up 44.3 247.9 Up 08:56:46 - 09:09:51 -5702
Toppenish/White Swan 09:03:17 -63.8 Dark Up 44.3 248.2 Up 08:56:44 - 09:09:49 -5723
PNWRO 09:03:12 -63.5 Dark Up 43.5 250.0 Up 08:56:40 - 09:09:45 -5747
The Dalles 09:03:17 -64.7 Dark Up 45.1 248.2 Up 08:56:45 - 09:09:50 -5806
Maupin 09:03:17 -65.0 Dark Up 45.2 248.7 Up 08:56:44 - 09:09:49 -5847
Sisters 09:03:17 -66.0 Dark Up 45.9 249.0 Up 08:56:44 - 09:09:49 -5940
Bend 09:03:16 -66.1 Dark Up 45.8 249.5 Up 08:56:43 - 09:09:48 -5962
Oregon Observatory 09:03:16 -66.3 Dark Up 45.9 249.5 Up 08:56:44 - 09:09:49 -5980
Chiloquin 09:03:15 -67.6 Dark Up 46.7 250.4 Up 08:56:42 - 09:09:47 -6118
Klamath Falls 09:03:15 -67.8 Dark Up 46.7 250.8 Up 08:56:42 - 09:09:47 -6152
Dunrhomin 09:02:31 -59.7 Dark Up 35.0 265.6 Up 08:55:59 - 09:09:04 -6155
Nikitin 09:02:31 -59.8 Dark Up 35.0 265.7 Up 08:55:59 - 09:09:04 -6174
CU-SBO 09:02:31 -59.9 Dark Up 35.1 265.7 Up 08:55:59 - 09:09:04 -6182
Cedarville 09:03:09 -67.7 Dark Up 45.8 253.0 Up 08:56:36 - 09:09:41 -6210
Fall River/Burney 09:03:11 -68.6 Dark Up 46.8 252.4 Up 08:56:39 - 09:09:44 -6271
Gimple 09:03:08 -69.1 Dark Up 46.7 253.8 Up 08:56:36 - 09:09:41 -6361
Greenville 09:03:09 -69.2 Dark Up 46.8 253.7 Up 08:56:36 - 09:09:41 -6361
Quincy 09:03:08 -69.3 Dark Up 46.8 253.9 Up 08:56:36 - 09:09:41 -6382
Portola 09:03:07 -69.2 Dark Up 46.5 254.4 Up 08:56:34 - 09:09:39 -6391
Reno 09:03:05 -69.1 Dark Up 46.1 255.2 Up 08:56:32 - 09:09:37 -6413
Carson City 09:03:05 -69.3 Dark Up 46.2 255.6 Up 08:56:32 - 09:09:37 -6450
Yerington 09:03:02 -69.1 Dark Up 45.8 256.3 Up 08:56:29 - 09:09:34 -6464
Gardnerville 09:03:04 -69.5 Dark Up 46.2 255.9 Up 08:56:31 - 09:09:36 -6475
Hawthorne 09:03:00 -69.2 Dark Up 45.5 257.2 Up 08:56:28 - 09:09:33 -6508
Lee Vining 09:03:00 -69.8 Dark Up 46.0 257.4 Up 08:56:28 - 09:09:33 -6572
Bishop 09:02:57 -69.8 Dark Up 45.5 258.5 Up 08:56:24 - 09:09:29 -6628
Beatty 09:02:52 -69.1 Dark Up 44.4 260.2 Up 08:56:19 - 09:09:24 -6659
Patrick 09:02:43 -68.0 Dark Up 42.3 263.6 Up 08:56:11 - 09:09:16 -6782
Laughlin/Bullhead City 09:02:44 -68.6 Dark Up 42.9 263.4 Up 08:56:11 - 09:09:16 -6817
Lake Havasu City 09:02:44 -68.8 Dark Up 42.7 264.1 Up 08:56:11 - 09:09:16 -6885
George/Scottsdale 09:02:35 -67.3 Dark Up 40.8 266.3 Up 08:56:02 - 09:09:07 -6935
Wildwood 09:02:53 -72.0 Dark Up 46.3 261.7 Up 08:56:21 - 09:09:26 -6977
Idyllwild 09:02:49 -70.9 Dark Up 44.8 263.3 Up 08:56:17 - 09:09:22 -6995
Calipatria 09:02:44 -70.3 Dark Up 43.9 264.7 Up 08:56:11 - 09:09:16 -7046
Yuma 09:02:41 -69.8 Dark Up 43.2 265.6 Up 08:56:09 - 09:09:14 -7081

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 523752, (2024/01/03 09:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  4.76 114
Alnath         05:26:17.6 +28:36:23  1.6 12.34 101
97 Tau         04:51:22.6 +18:50:23  5.1  0.48 110
PPM 120385     04:54:58.5 +19:29:07  7.2  0.76 109
PPM 120359     04:53:35.5 +19:04:22  8.9  0.26 110
523752         04:53:23.4 +18:49:12 16.0       110
Positions are for J2000

Event circumstances last updated at 2023/12/22 05:44:41 UT

Marc W. Buie, Southwest Research Institute

RECON