RECON: TNO occultation with 576357

Event between (576357) 12PV45 and star GA1060:00217952 with event index number of 2688454

Geocentric closest approach at 2029/02/12 04:54:10 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=15.5, 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 865 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 15.5        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=8.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:58:36 -42.5 Dark Down 20.2 271.5 Low 04:45:40 - 05:11:32 3036
Kamloops 04:58:20 -35.7 Dark Down 29.3 260.5 Low 04:45:24 - 05:11:16 2690
Kelowna 04:58:25 -36.6 Dark Down 28.9 261.7 Low 04:45:29 - 05:11:21 2630
Peachland 04:58:24 -36.4 Dark Down 29.1 261.5 Low 04:45:28 - 05:11:20 2616
Summerland 04:58:25 -36.6 Dark Down 29.1 261.6 Low 04:45:29 - 05:11:21 2604
Penticton 04:58:26 -36.6 Dark Down 29.0 261.8 Low 04:45:30 - 05:11:22 2600
Oliver 04:58:27 -36.8 Dark Down 29.0 262.0 Low 04:45:31 - 05:11:23 2568
Anarchist Mountain Observatory 04:58:28 -37.0 Dark Down 28.9 262.2 Low 04:45:32 - 05:11:24 2556
Okanogan 04:58:30 -37.1 Dark Down 29.2 262.4 Low 04:45:34 - 05:11:26 2494
Brewster 04:58:31 -37.1 Dark Down 29.3 262.4 Low 04:45:35 - 05:11:27 2466
Victoria 04:58:21 -34.7 Dark Down 31.7 259.2 Up 04:45:25 - 05:11:17 2454
Manson/Chelan 04:58:31 -37.0 Dark Down 29.6 262.2 Low 04:45:35 - 05:11:27 2442
Wenatchee 04:58:32 -37.1 Dark Down 29.8 262.4 Low 04:45:36 - 05:11:28 2396
Ellensburg 04:58:33 -37.1 Dark Down 30.0 262.4 Low 04:45:37 - 05:11:29 2354
Yakima 04:58:35 -37.2 Dark Down 30.0 262.7 Up 04:45:39 - 05:11:31 2316
Toppenish/White Swan 04:58:36 -37.4 Dark Down 29.9 262.9 Low 04:45:40 - 05:11:32 2299
PNWRO 04:58:40 -38.5 Dark Down 28.9 264.3 Low 04:45:44 - 05:11:36 2288
The Dalles 04:58:37 -37.2 Dark Down 30.6 262.8 Up 04:45:41 - 05:11:33 2214
Maupin 04:58:39 -37.4 Dark Down 30.6 263.1 Up 04:45:43 - 05:11:35 2176
Sisters 04:58:41 -37.4 Dark Down 31.0 263.2 Up 04:45:45 - 05:11:37 2086
Bend 04:58:42 -37.6 Dark Down 30.8 263.6 Up 04:45:46 - 05:11:38 2067
Oregon Observatory 04:58:42 -37.6 Dark Down 30.9 263.6 Up 04:45:46 - 05:11:38 2049
Dunrhomin 04:59:24 -50.2 Dark Down 18.7 276.3 Really Low 04:46:28 - 05:12:20 2007
Nikitin 04:59:25 -50.3 Dark Down 18.7 276.4 Really Low 04:46:29 - 05:12:21 1989
CU-SBO 04:59:25 -50.2 Dark Down 18.8 276.4 Really Low 04:46:29 - 05:12:21 1982
Chiloquin 04:58:45 -37.7 Dark Down 31.4 264.1 Up 04:45:49 - 05:11:41 1915
Klamath Falls 04:58:47 -37.9 Dark Down 31.4 264.4 Up 04:45:51 - 05:11:43 1883
Cedarville 04:58:53 -39.3 Dark Down 30.2 265.9 Up 04:45:57 - 05:11:49 1842
Fall River/Burney 04:58:52 -38.6 Dark Down 31.2 265.4 Up 04:45:56 - 05:11:48 1774
Gimple 04:58:55 -39.2 Dark Down 30.8 266.3 Up 04:45:59 - 05:11:51 1694
Greenville 04:58:56 -39.2 Dark Down 30.9 266.2 Up 04:46:00 - 05:11:52 1693
Quincy 04:58:56 -39.2 Dark Down 30.9 266.3 Up 04:46:00 - 05:11:52 1673
Portola 04:58:58 -39.6 Dark Down 30.5 266.7 Up 04:46:02 - 05:11:54 1668
Reno 04:59:00 -40.2 Dark Down 30.0 267.3 Up 04:46:04 - 05:11:56 1653
Carson City 04:59:01 -40.3 Dark Down 30.0 267.6 Up 04:46:05 - 05:11:57 1618
Yerington 04:59:03 -40.8 Dark Down 29.5 268.1 Low 04:46:07 - 05:11:59 1609
Gardnerville 04:59:02 -40.4 Dark Down 30.0 267.7 Low 04:46:06 - 05:11:58 1594
Hawthorne 04:59:06 -41.4 Dark Down 29.1 268.7 Low 04:46:10 - 05:12:02 1573
Lee Vining 04:59:06 -41.2 Dark Down 29.5 268.7 Low 04:46:10 - 05:12:02 1508
Bishop 04:59:10 -41.9 Dark Down 28.9 269.5 Low 04:46:14 - 05:12:06 1461
Beatty 04:59:15 -43.3 Dark Down 27.6 270.7 Low 04:46:19 - 05:12:11 1445
Patrick 04:59:26 -46.0 Dark Down 25.2 273.2 Low 04:46:30 - 05:12:22 1352
Laughlin/Bullhead City 04:59:25 -45.6 Dark Down 25.8 272.9 Low 04:46:29 - 05:12:21 1313
Lake Havasu City 04:59:27 -46.0 Dark Down 25.5 273.4 Low 04:46:31 - 05:12:23 1251
George/Scottsdale 04:59:34 -48.2 Dark Down 23.4 275.0 Low 04:46:38 - 05:12:30 1224
Wildwood 04:59:18 -42.6 Dark Down 29.1 271.2 Low 04:46:22 - 05:12:14 1126
Idyllwild 04:59:24 -44.3 Dark Down 27.5 272.4 Low 04:46:28 - 05:12:20 1126
Calipatria 04:59:28 -45.4 Dark Down 26.4 273.4 Low 04:46:32 - 05:12:24 1087
Yuma 04:59:31 -46.2 Dark Down 25.6 274.1 Low 04:46:35 - 05:12:27 1061

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 15.5        87
Positions are for J2000

Event circumstances last updated at 2023/10/28 01:08:25 UT

Marc W. Buie, Southwest Research Institute

RECON