RECON: TNO occultation with 385437

Event between (385437) 03GH55 and star GA0700:06087045 with event index number of 2374720

Geocentric closest approach at 2024/05/22 05:46:55 UTC

J2000 position of star is 15:59:16.8 -19:36:14
Equinox of date position of star is 16:00:32.9 -19:39:53
Stellar brightness G=14.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 16 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 41.3 AU from the Sun and 40.3 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 114 seconds.
The 1-sigma cross-track error in the shadow position is 1812 km.
The sky-plane scale is 29232.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=382.0 km assuming a 5% albedo -- 15.5 sec chord
Diameter=155.9 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 385437, (2024/05/22 05:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.4 -26:29:02  0.9  9.73  24
8Bet1Sco       16:06:51.6 -19:52:13  2.6  1.46  18
47 Lib         15:56:25.2 -19:27:11  5.9  1.03  15
PPM 231042     16:00:33.0 -20:00:25  8.4  0.34  16
PPM 231035     16:00:10.7 -19:36:43  9.0  0.14  16
385437         16:00:41.9 -19:40:18 14.8        16
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 10.9 km RECON observability=0.6 and success probability=6.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 05:49:07 -14.1 AT Up 14.8 149.4 Really Low 05:39:06 - 05:59:07 -2471
Kelowna 05:49:08 -14.4 AT Up 15.1 149.2 Really Low 05:39:07 - 05:59:08 -2495
Peachland 05:49:09 -14.4 AT Up 15.1 148.9 Really Low 05:39:08 - 05:59:09 -2508
Summerland 05:49:09 -14.5 AT Up 15.3 149.0 Really Low 05:39:08 - 05:59:09 -2513
Penticton 05:49:08 -14.6 AT Up 15.3 149.1 Really Low 05:39:08 - 05:59:09 -2514
Oliver 05:49:09 -14.9 AT Up 15.7 149.0 Really Low 05:39:08 - 05:59:09 -2532
Anarchist Mountain Observatory 05:49:09 -15.1 AT Up 15.9 149.2 Really Low 05:39:08 - 05:59:09 -2536
Tonasket 05:49:09 -15.4 AT Up 16.1 149.1 Really Low 05:39:09 - 05:59:10 -2554
Okanogan 05:49:10 -15.6 AT Up 16.3 148.9 Really Low 05:39:10 - 05:59:11 -2576
Brewster 05:49:11 -15.8 AT Up 16.5 148.7 Really Low 05:39:10 - 05:59:11 -2596
Manson/Chelan 05:49:12 -15.8 AT Up 16.6 148.3 Really Low 05:39:12 - 05:59:13 -2616
Wenatchee 05:49:13 -16.2 AT Up 16.9 148.1 Really Low 05:39:13 - 05:59:14 -2647
Victoria 05:49:18 -14.1 AT Up 14.8 145.5 Really Low 05:39:18 - 05:59:19 -2665
Dunrhomin 05:48:38 -27.2 Dark Up 28.0 161.3 Low 05:38:37 - 05:58:38 -2675
Ellensburg 05:49:14 -16.5 AT Up 17.2 147.8 Really Low 05:39:14 - 05:59:15 -2675
Pasco 05:49:12 -17.6 AT Up 18.3 149.0 Really Low 05:39:11 - 05:59:12 -2681
PNWRO 05:49:12 -17.9 AT Up 18.6 149.1 Really Low 05:39:11 - 05:59:12 -2688
Yakima 05:49:15 -16.8 AT Up 17.5 147.7 Really Low 05:39:14 - 05:59:15 -2699
Toppenish/White Swan 05:49:15 -17.1 AT Up 17.8 147.8 Really Low 05:39:14 - 05:59:15 -2707
Goldendale 05:49:17 -17.4 AT Up 18.1 147.4 Really Low 05:39:16 - 05:59:17 -2750
The Dalles 05:49:18 -17.4 AT Up 18.1 147.0 Really Low 05:39:17 - 05:59:18 -2773
Maupin 05:49:18 -17.8 AT Up 18.5 147.0 Really Low 05:39:18 - 05:59:19 -2794
Redmond 05:49:20 -18.5 Dark Up 19.2 146.8 Really Low 05:39:19 - 05:59:20 -2850
Sisters 05:49:20 -18.4 Dark Up 19.1 146.4 Really Low 05:39:20 - 05:59:21 -2860
Bend 05:49:20 -18.7 Dark Up 19.4 146.6 Really Low 05:39:20 - 05:59:21 -2867
Oregon Observatory 05:49:21 -18.8 Dark Up 19.5 146.5 Really Low 05:39:20 - 05:59:21 -2881
La Pine/Gilchrist 05:49:21 -18.9 Dark Up 19.6 146.4 Really Low 05:39:20 - 05:59:21 -2895
North Lake 05:49:20 -19.5 Dark Up 20.2 146.8 Low 05:39:20 - 05:59:21 -2905
Paisley 05:49:20 -20.1 Dark Up 20.8 147.0 Low 05:39:19 - 05:59:20 -2930
Lakeview 05:49:20 -20.6 Dark Up 21.3 147.1 Low 05:39:20 - 05:59:21 -2956
Chiloquin 05:49:24 -19.7 Dark Up 20.4 145.8 Low 05:39:23 - 05:59:24 -2975
Cedarville 05:49:20 -21.3 Dark Up 21.9 147.1 Low 05:39:19 - 05:59:20 -2993
Klamath Falls 05:49:23 -20.0 Dark Up 20.7 145.8 Low 05:39:23 - 05:59:24 -2994
Fall River/Burney 05:49:24 -21.2 Dark Up 21.8 145.9 Low 05:39:23 - 05:59:24 -3059
Susanville 05:49:23 -22.0 Dark Up 22.7 146.4 Low 05:39:22 - 05:59:23 -3079
Gimple 05:49:23 -22.2 Dark Up 22.8 146.2 Low 05:39:23 - 05:59:24 -3104
Greenville 05:49:24 -22.1 Dark Up 22.8 146.1 Low 05:39:24 - 05:59:25 -3106
Reno 05:49:22 -23.1 Dark Up 23.8 147.0 Low 05:39:21 - 05:59:22 -3112
Portola 05:49:23 -22.6 Dark Up 23.3 146.5 Low 05:39:22 - 05:59:23 -3113
Quincy 05:49:24 -22.3 Dark Up 23.0 146.1 Low 05:39:24 - 05:59:25 -3119
Yerington 05:49:20 -23.8 Dark Up 24.5 147.5 Low 05:39:20 - 05:59:21 -3130
Carson City 05:49:21 -23.4 Dark Up 24.1 146.9 Low 05:39:21 - 05:59:22 -3136
Tonopah 05:49:16 -25.4 Dark Up 26.1 149.0 Low 05:39:15 - 05:59:16 -3136
Hawthorne 05:49:19 -24.4 Dark Up 25.1 147.8 Low 05:39:19 - 05:59:20 -3146
Gardnerville 05:49:22 -23.6 Dark Up 24.3 146.9 Low 05:39:21 - 05:59:22 -3151
Indian Springs 05:49:12 -27.3 Dark Up 28.0 150.1 Low 05:39:12 - 05:59:13 -3194
Lee Vining 05:49:20 -24.7 Dark Up 25.4 147.3 Low 05:39:20 - 05:59:21 -3198
Beatty 05:49:15 -26.6 Dark Up 27.3 149.2 Low 05:39:15 - 05:59:16 -3203
Henderson 05:49:10 -28.0 Dark Up 28.7 150.6 Low 05:39:09 - 05:59:10 -3211
Bishop 05:49:20 -25.5 Dark Up 26.2 147.8 Low 05:39:19 - 05:59:20 -3219
Patrick 05:49:07 -29.0 Dark Up 29.7 151.6 Low 05:39:07 - 05:59:08 -3222
Kingman/Dolan Springs 05:49:08 -29.1 Dark Up 29.8 151.3 Low 05:39:08 - 05:59:09 -3243
Laughlin/Bullhead City 05:49:10 -28.9 Dark Up 29.6 150.8 Low 05:39:09 - 05:59:10 -3260
Mohave Valley 05:49:10 -29.2 Dark Up 29.9 150.7 Low 05:39:10 - 05:59:11 -3279
George/Scottsdale 05:49:02 -31.3 Dark Up 32.0 153.1 Up 05:39:01 - 05:59:02 -3284
Lake Havasu City 05:49:09 -29.6 Dark Up 30.3 150.9 Up 05:39:08 - 05:59:09 -3300
Parker 05:49:09 -30.0 Dark Up 30.6 150.8 Up 05:39:09 - 05:59:10 -3325
Blythe 05:49:11 -30.3 Dark Up 31.0 150.3 Up 05:39:10 - 05:59:11 -3372
Idyllwild 05:49:18 -29.3 Dark Up 30.0 148.3 Low 05:39:17 - 05:59:18 -3426
CPSLO 05:49:28 -26.3 Dark Up 26.9 145.1 Low 05:39:28 - 05:59:29 -3434
Calipatria 05:49:14 -30.4 Dark Up 31.0 149.3 Up 05:39:14 - 05:59:15 -3436
Yuma 05:49:11 -31.1 Dark Up 31.8 150.0 Up 05:39:10 - 05:59:11 -3441
Wildwood 05:49:23 -28.2 Dark Up 28.9 146.7 Low 05:39:22 - 05:59:23 -3458

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 385437, (2024/05/22 05:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.73  24
8Bet1Sco       16:05:26.2 -19:48:20  2.6  1.46  18
47 Lib         15:55:00.4 -19:22:59  5.9  1.03  15
PPM 231042     15:59:07.8 -19:56:20  8.4  0.34  16
PPM 231035     15:58:45.7 -19:32:37  9.0  0.14  16
385437         15:59:16.8 -19:36:14 14.8        16
Positions are for J2000

Event circumstances last updated at 2021/10/27 22:41:07 UT

Marc W. Buie, Southwest Research Institute

RECON