RECON: TNO occultation with 576357

Event between (576357) 12PV45 and star GA1020:00070141 with event index number of 2524261

Geocentric closest approach at 2024/10/03 02:44:02 UTC

J2000 position of star is 00:43:05.5 +13:47:17
Equinox of date position of star is 00:44:20.2 +13:55:06
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 172 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=21.8

[RECON map]
Object is 17.2 AU from the Sun and 16.2 AU from the Earth.
Apparent velocity is 21.4 km/sec on the sky relative to the star, or, 6.6 arcsec/hr.
The 1-sigma error in the time of the event is 38 seconds.
The 1-sigma cross-track error in the shadow position is 669 km.
The sky-plane scale is 11751.2 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=74.1 km assuming a 5% albedo -- 3.6 sec chord
Diameter=30.3 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 576357, (2024/10/03 02:46UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:30.8 +15:19:16  2.8  7.36 167
PPM 116613     00:37:12.0 +13:20:31  6.3  1.84 172
PPM 116760     00:47:56.3 +14:08:16  8.1  0.89 172
PPM 116715     00:43:56.1 +13:46:27  9.0  0.19 172
PPM 116721     00:44:42.6 +14:03:56 11.0  0.16 172
576357         00:44:23.2 +13:55:24 16.2       172
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 28.0 km RECON observability=0.2 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)
Kamloops 02:45:16 -11.8 NT Down 18.5 90.7 Really Low 02:41:38 - 02:48:53 7126
Victoria 02:45:27 -10.2 NT Down 16.5 87.7 Really Low 02:41:50 - 02:49:05 7126
Peachland 02:45:20 -12.4 AT Down 18.9 90.8 Really Low 02:41:43 - 02:48:58 7086
Kelowna 02:45:19 -12.5 AT Down 19.1 91.1 Really Low 02:41:42 - 02:48:57 7082
Summerland 02:45:21 -12.5 AT Down 19.0 90.9 Really Low 02:41:44 - 02:48:59 7079
Penticton 02:45:21 -12.5 AT Down 19.1 90.9 Really Low 02:41:43 - 02:48:58 7074
Oliver 02:45:23 -12.6 AT Down 19.1 90.8 Really Low 02:41:45 - 02:49:00 7063
Anarchist Mountain Observatory 02:45:24 -12.7 AT Down 19.2 90.9 Really Low 02:41:46 - 02:49:01 7054
Okanogan 02:45:26 -12.7 AT Down 19.1 90.5 Really Low 02:41:49 - 02:49:04 7037
Manson/Chelan 02:45:30 -12.4 AT Down 18.7 89.9 Really Low 02:41:52 - 02:49:07 7034
Brewster 02:45:28 -12.6 AT Down 18.9 90.3 Really Low 02:41:51 - 02:49:06 7033
Wenatchee 02:45:32 -12.4 AT Down 18.6 89.7 Really Low 02:41:54 - 02:49:09 7022
Ellensburg 02:45:34 -12.3 AT Down 18.4 89.4 Really Low 02:41:56 - 02:49:11 7013
Yakima 02:45:36 -12.3 AT Down 18.4 89.2 Really Low 02:41:58 - 02:49:13 6998
Toppenish/White Swan 02:45:37 -12.5 AT Down 18.5 89.3 Really Low 02:41:59 - 02:49:14 6987
The Dalles 02:45:41 -12.0 AT Down 18.0 88.5 Really Low 02:42:04 - 02:49:19 6976
Maupin 02:45:43 -12.1 AT Down 18.1 88.4 Really Low 02:42:05 - 02:49:20 6958
PNWRO 02:45:38 -13.5 AT Down 19.6 90.2 Really Low 02:42:01 - 02:49:16 6937
Sisters 02:45:48 -11.9 NT Down 17.7 87.8 Really Low 02:42:10 - 02:49:25 6936
Bend 02:45:49 -12.1 AT Down 17.9 87.9 Really Low 02:42:11 - 02:49:26 6921
Oregon Observatory 02:45:50 -12.0 AT Down 17.8 87.8 Really Low 02:42:12 - 02:49:27 6917
Chiloquin 02:45:56 -11.9 NT Down 17.4 87.1 Really Low 02:42:18 - 02:49:33 6872
Klamath Falls 02:45:58 -12.0 NT Down 17.5 87.0 Really Low 02:42:20 - 02:49:35 6856
Sleaford 02:44:59 -20.2 Dark Down 27.2 103.0 Low 02:41:22 - 02:48:37 6821
Fall River/Burney 02:46:03 -12.4 AT Down 17.7 86.9 Really Low 02:42:25 - 02:49:40 6794
Cedarville 02:46:00 -13.3 AT Down 18.7 87.9 Really Low 02:42:23 - 02:49:38 6785
Greenville 02:46:07 -12.8 AT Down 18.0 86.9 Really Low 02:42:30 - 02:49:45 6741
Gimple 02:46:07 -12.9 AT Down 18.1 87.0 Really Low 02:42:29 - 02:49:44 6739
Quincy 02:46:08 -12.9 AT Down 18.0 86.9 Really Low 02:42:31 - 02:49:46 6732
Portola 02:46:09 -13.2 AT Down 18.4 87.1 Really Low 02:42:31 - 02:49:46 6714
Reno 02:46:10 -13.8 AT Down 18.9 87.5 Really Low 02:42:32 - 02:49:47 6684
Carson City 02:46:11 -13.8 AT Down 18.9 87.3 Really Low 02:42:33 - 02:49:48 6666
Gardnerville 02:46:13 -13.9 AT Down 18.9 87.3 Really Low 02:42:35 - 02:49:50 6652
Yerington 02:46:12 -14.3 AT Down 19.4 87.7 Really Low 02:42:34 - 02:49:49 6639
Hawthorne 02:46:14 -14.8 AT Down 19.8 87.8 Really Low 02:42:36 - 02:49:51 6601
Lee Vining 02:46:17 -14.5 AT Down 19.4 87.4 Really Low 02:42:39 - 02:49:54 6587
Bishop 02:46:19 -15.1 AT Down 19.9 87.6 Really Low 02:42:41 - 02:49:56 6535
Beatty 02:46:20 -16.5 AT Down 21.2 88.4 Low 02:42:43 - 02:49:58 6463
Wildwood 02:46:34 -15.4 AT Down 19.6 86.3 Really Low 02:42:57 - 02:50:12 6361
Laughlin/Bullhead City 02:46:27 -18.5 Dark Down 23.0 89.0 Low 02:42:49 - 02:50:04 6300
Patrick 02:46:25 -19.0 Dark Down 23.5 89.5 Low 02:42:47 - 02:50:02 6293
Idyllwild 02:46:35 -17.0 AT Down 21.2 87.2 Low 02:42:57 - 02:50:12 6284
Dunrhomin 02:45:54 -24.6 Dark Down 30.0 97.4 Up 02:42:17 - 02:49:32 6278
Nikitin 02:45:55 -24.6 Dark Down 30.0 97.3 Up 02:42:18 - 02:49:33 6269
CU-SBO 02:45:56 -24.6 Dark Down 30.0 97.2 Low 02:42:18 - 02:49:33 6268
Lake Havasu City 02:46:29 -18.8 Dark Down 23.2 88.8 Low 02:42:52 - 02:50:07 6253
Calipatria 02:46:36 -18.0 Dark Down 22.1 87.6 Low 02:42:59 - 02:50:14 6210
Yuma 02:46:37 -18.8 Dark Down 22.9 87.9 Low 02:43:00 - 02:50:15 6155
George/Scottsdale 02:46:31 -21.0 Dark Down 25.2 89.9 Low 02:42:53 - 02:50:08 6127

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 576357, (2024/10/03 02:46UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8  7.36 167
PPM 116613     00:35:54.6 +13:12:21  6.3  1.84 172
PPM 116760     00:46:38.4 +14:00:10  8.1  0.89 172
PPM 116715     00:42:38.4 +13:38:20  9.0  0.19 172
PPM 116721     00:43:24.9 +13:55:49 11.0  0.16 172
576357         00:43:05.5 +13:47:17 16.2       172
Positions are for J2000

Event circumstances last updated at 2023/10/24 02:31:43 UT

Marc W. Buie, Southwest Research Institute

RECON