RECON: TNO occultation with 576357

Event between (576357) 12PV45 and star GA1060:00233709 with event index number of 2717102

Geocentric closest approach at 2029/02/12 04:54:18 UTC

J2000 position of star is 02:11:38.1 +16:42:31
Equinox of date position of star is 02:12:56.5 +16:49:11
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 87 degrees from the moon. Moon is 2% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 18.1 AU from the Sun and 18.4 AU from the Earth.
Apparent velocity is 16.7 km/sec on the sky relative to the star, or, 4.5 arcsec/hr.
The 1-sigma error in the time of the event is 149 seconds.
The 1-sigma cross-track error in the shadow position is 867 km.
The sky-plane scale is 13348.0 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=74.1 km assuming a 5% albedo -- 4.6 sec chord
Diameter=30.3 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 576357, (2029/02/12 04:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.7 +16:33:56  0.8 34.52 120
6Bet Ari       01:56:15.3 +20:56:57  2.6  5.74  84
19 Ari         02:14:38.9 +15:24:54  5.7  1.47  86
PPM 118029     02:14:05.6 +16:50:09  8.4  0.21  87
576357         02:13:14.0 +16:50:39 15.4        87
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 31.7 km RECON observability=0.9 and success probability=10.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:58:43 -42.5 Dark Down 20.2 271.5 Low 04:45:47 - 05:11:39 2977
Kamloops 04:58:27 -35.7 Dark Down 29.3 260.5 Low 04:45:31 - 05:11:23 2630
Kelowna 04:58:32 -36.6 Dark Down 28.9 261.7 Low 04:45:36 - 05:11:28 2571
Peachland 04:58:32 -36.4 Dark Down 29.1 261.5 Low 04:45:36 - 05:11:28 2557
Summerland 04:58:33 -36.6 Dark Down 29.0 261.7 Low 04:45:37 - 05:11:29 2545
Penticton 04:58:33 -36.7 Dark Down 29.0 261.8 Low 04:45:37 - 05:11:29 2540
Oliver 04:58:35 -36.8 Dark Down 29.0 262.0 Low 04:45:39 - 05:11:31 2509
Anarchist Mountain Observatory 04:58:36 -37.0 Dark Down 28.9 262.3 Low 04:45:40 - 05:11:32 2496
Okanogan 04:58:38 -37.1 Dark Down 29.1 262.4 Low 04:45:42 - 05:11:34 2435
Brewster 04:58:38 -37.1 Dark Down 29.3 262.4 Low 04:45:42 - 05:11:34 2407
Victoria 04:58:29 -34.7 Dark Down 31.6 259.2 Up 04:45:33 - 05:11:25 2395
Manson/Chelan 04:58:38 -37.0 Dark Down 29.6 262.3 Low 04:45:42 - 05:11:34 2382
Wenatchee 04:58:40 -37.1 Dark Down 29.7 262.4 Low 04:45:44 - 05:11:36 2336
Ellensburg 04:58:41 -37.1 Dark Down 29.9 262.5 Low 04:45:45 - 05:11:37 2295
Yakima 04:58:42 -37.2 Dark Down 30.0 262.7 Up 04:45:46 - 05:11:38 2257
Toppenish/White Swan 04:58:43 -37.4 Dark Down 29.9 262.9 Low 04:45:47 - 05:11:39 2240
PNWRO 04:58:48 -38.5 Dark Down 28.9 264.3 Low 04:45:52 - 05:11:44 2228
The Dalles 04:58:44 -37.2 Dark Down 30.6 262.8 Up 04:45:48 - 05:11:40 2155
Maupin 04:58:46 -37.4 Dark Down 30.5 263.1 Up 04:45:50 - 05:11:42 2117
Sisters 04:58:48 -37.4 Dark Down 31.0 263.3 Up 04:45:52 - 05:11:44 2027
Bend 04:58:49 -37.7 Dark Down 30.8 263.6 Up 04:45:53 - 05:11:45 2008
Oregon Observatory 04:58:50 -37.6 Dark Down 30.9 263.6 Up 04:45:54 - 05:11:46 1989
Dunrhomin 04:59:32 -50.2 Dark Down 18.7 276.4 Really Low 04:46:36 - 05:12:28 1948
Nikitin 04:59:32 -50.3 Dark Down 18.7 276.4 Really Low 04:46:36 - 05:12:28 1930
CU-SBO 04:59:32 -50.3 Dark Down 18.8 276.4 Really Low 04:46:36 - 05:12:28 1923
Chiloquin 04:58:53 -37.8 Dark Down 31.4 264.1 Up 04:45:57 - 05:11:49 1856
Klamath Falls 04:58:54 -37.9 Dark Down 31.3 264.4 Up 04:45:58 - 05:11:50 1824
Cedarville 04:59:00 -39.3 Dark Down 30.2 265.9 Up 04:46:04 - 05:11:56 1782
Fall River/Burney 04:58:59 -38.6 Dark Down 31.1 265.4 Up 04:46:03 - 05:11:55 1715
Gimple 04:59:03 -39.2 Dark Down 30.8 266.3 Up 04:46:07 - 05:11:59 1635
Greenville 04:59:03 -39.2 Dark Down 30.9 266.2 Up 04:46:07 - 05:11:59 1633
Quincy 04:59:04 -39.2 Dark Down 30.9 266.4 Up 04:46:08 - 05:12:00 1613
Portola 04:59:05 -39.6 Dark Down 30.5 266.8 Up 04:46:09 - 05:12:01 1609
Reno 04:59:07 -40.2 Dark Down 30.0 267.4 Up 04:46:11 - 05:12:03 1594
Carson City 04:59:08 -40.3 Dark Down 30.0 267.6 Low 04:46:12 - 05:12:04 1559
Yerington 04:59:10 -40.9 Dark Down 29.5 268.1 Low 04:46:14 - 05:12:06 1550
Gardnerville 04:59:09 -40.4 Dark Down 30.0 267.8 Low 04:46:13 - 05:12:05 1535
Hawthorne 04:59:13 -41.4 Dark Down 29.1 268.7 Low 04:46:17 - 05:12:09 1514
Lee Vining 04:59:14 -41.2 Dark Down 29.5 268.7 Low 04:46:18 - 05:12:10 1449
Bishop 04:59:17 -41.9 Dark Down 28.9 269.5 Low 04:46:21 - 05:12:13 1402
Beatty 04:59:22 -43.3 Dark Down 27.6 270.8 Low 04:46:26 - 05:12:18 1386
Patrick 04:59:33 -46.1 Dark Down 25.2 273.2 Low 04:46:37 - 05:12:29 1293
Laughlin/Bullhead City 04:59:32 -45.6 Dark Down 25.7 272.9 Low 04:46:36 - 05:12:28 1254
Lake Havasu City 04:59:35 -46.0 Dark Down 25.5 273.4 Low 04:46:39 - 05:12:31 1191
George/Scottsdale 04:59:42 -48.2 Dark Down 23.4 275.1 Low 04:46:46 - 05:12:38 1165
Wildwood 04:59:26 -42.7 Dark Down 29.0 271.2 Low 04:46:30 - 05:12:22 1067
Idyllwild 04:59:31 -44.3 Dark Down 27.4 272.5 Low 04:46:35 - 05:12:27 1067
Calipatria 04:59:36 -45.4 Dark Down 26.4 273.4 Low 04:46:40 - 05:12:32 1028
Yuma 04:59:39 -46.3 Dark Down 25.6 274.1 Low 04:46:43 - 05:12:35 1002

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, (2029/02/12 04:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 34.52 120
6Bet Ari       01:54:38.6 +20:48:26  2.6  5.74  84
19 Ari         02:13:03.4 +15:16:47  5.7  1.47  86
PPM 118029     02:12:29.6 +16:42:01  8.4  0.21  87
576357         02:11:38.1 +16:42:31 15.4        87
Positions are for J2000

Event circumstances last updated at 2023/10/28 01:08:31 UT

Marc W. Buie, Southwest Research Institute

RECON