RECON: TNO occultation with 385437

Event between (385437) 03GH55 and star GA0700:06054127 with event index number of 2374723

Geocentric closest approach at 2024/06/29 07:11:26 UTC

J2000 position of star is 15:56:20.1 -19:28:00
Equinox of date position of star is 15:57:36.1 -19:31:44
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon. Moon is 46% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 41.3 AU from the Sun and 40.5 AU from the Earth.
The TNO is moving 18.8 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 152 seconds.
The 1-sigma cross-track error in the shadow position is 1644 km.
The sky-plane scale is 29375.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=382.0 km assuming a 5% albedo -- 20.4 sec chord
Diameter=155.9 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 385437, (2024/06/29 07:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.8 -26:29:03  0.9 10.31 123
8Bet1Sco       16:06:51.9 -19:52:14  2.6  2.17 130
47 Lib         15:56:25.6 -19:27:12  5.9  0.32 132
PPM 230949     15:57:02.3 -18:51:40  8.2  0.70 132
PPM 230982     15:58:18.2 -19:20:28  9.8  0.23 132
385437         15:57:45.4 -19:32:11 16.9       132
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 16.4 km RECON observability=0.7 and success probability=1.1%
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 07:10:46 -15.7 AT Down 16.3 206.6 Really Low 06:57:38 - 07:23:55 5602
Kelowna 07:10:48 -16.1 AT Down 16.7 206.6 Really Low 06:57:40 - 07:23:57 5589
Peachland 07:10:47 -16.2 AT Down 16.8 206.3 Really Low 06:57:39 - 07:23:56 5585
Summerland 07:10:47 -16.3 AT Down 17.0 206.4 Really Low 06:57:38 - 07:23:55 5580
Penticton 07:10:46 -16.4 AT Down 17.0 206.5 Really Low 06:57:38 - 07:23:55 5577
Oliver 07:10:46 -16.7 AT Down 17.3 206.5 Really Low 06:57:37 - 07:23:54 5565
Anarchist Mountain Observatory 07:10:44 -16.9 AT Down 17.4 206.8 Really Low 06:57:36 - 07:23:53 5560
Tonasket 07:10:45 -17.2 AT Down 17.7 206.7 Really Low 06:57:36 - 07:23:53 5548
Okanogan 07:10:44 -17.5 AT Down 18.0 206.6 Really Low 06:57:35 - 07:23:52 5535
Victoria 07:10:59 -16.8 AT Down 18.9 203.0 Really Low 06:57:50 - 07:24:07 5532
Brewster 07:10:44 -17.8 AT Down 18.3 206.5 Really Low 06:57:35 - 07:23:52 5525
Manson/Chelan 07:10:45 -17.9 AT Down 18.6 206.2 Really Low 06:57:36 - 07:23:53 5516
Wenatchee 07:10:44 -18.3 Dark Down 19.1 206.1 Really Low 06:57:36 - 07:23:53 5498
Ellensburg 07:10:43 -18.7 Dark Down 19.6 205.9 Really Low 06:57:35 - 07:23:52 5481
Yakima 07:10:44 -19.1 Dark Down 19.9 206.0 Really Low 06:57:35 - 07:23:52 5465
Toppenish/White Swan 07:10:43 -19.3 Dark Down 20.1 206.2 Low 06:57:34 - 07:23:51 5456
Pasco 07:10:37 -19.7 Dark Down 19.8 207.4 Really Low 06:57:29 - 07:23:46 5453
PNWRO 07:10:35 -19.9 Dark Down 19.9 207.6 Really Low 06:57:27 - 07:23:44 5443
Goldendale 07:10:42 -19.8 Dark Down 20.7 205.8 Low 06:57:33 - 07:23:50 5433
The Dalles 07:10:43 -20.0 Dark Down 21.0 205.5 Low 06:57:34 - 07:23:51 5422
Maupin 07:10:42 -20.4 Dark Down 21.4 205.7 Low 06:57:34 - 07:23:51 5405
Sisters 07:10:42 -21.2 Dark Down 22.3 205.4 Low 06:57:33 - 07:23:50 5366
Redmond 07:10:41 -21.3 Dark Down 22.2 205.8 Low 06:57:33 - 07:23:50 5366
Bend 07:10:40 -21.4 Dark Down 22.4 205.7 Low 06:57:31 - 07:23:48 5356
Oregon Observatory 07:10:41 -21.6 Dark Down 22.6 205.6 Low 06:57:32 - 07:23:49 5348
La Pine/Gilchrist 07:10:40 -21.8 Dark Down 22.8 205.6 Low 06:57:31 - 07:23:48 5338
North Lake 07:10:37 -22.3 Dark Down 23.0 206.2 Low 06:57:28 - 07:23:45 5320
Paisley 07:10:35 -22.9 Dark Down 23.4 206.7 Low 06:57:27 - 07:23:44 5295
Chiloquin 07:10:39 -22.8 Dark Down 24.0 205.4 Low 06:57:30 - 07:23:47 5286
Lakeview 07:10:32 -23.4 Dark Down 23.8 206.9 Low 06:57:24 - 07:23:41 5271
Klamath Falls 07:10:38 -23.1 Dark Down 24.2 205.6 Low 06:57:30 - 07:23:47 5269
Cedarville 07:10:30 -24.1 Dark Down 24.3 207.2 Low 06:57:21 - 07:23:38 5239
Fall River/Burney 07:10:34 -24.3 Dark Down 25.2 206.1 Low 06:57:26 - 07:23:43 5212
Susanville 07:10:30 -25.1 Dark Down 25.5 207.0 Low 06:57:21 - 07:23:38 5182
Gimple 07:10:31 -25.3 Dark Down 25.8 206.8 Low 06:57:22 - 07:23:39 5167
Greenville 07:10:30 -25.3 Dark Down 25.8 206.8 Low 06:57:22 - 07:23:39 5167
Quincy 07:10:29 -25.5 Dark Down 26.0 206.8 Low 06:57:20 - 07:23:37 5157
Portola 07:10:27 -25.7 Dark Down 26.0 207.3 Low 06:57:19 - 07:23:36 5152
Dunrhomin 07:09:30 -26.5 Dark Up 19.1 220.9 Really Low 06:56:22 - 07:22:39 5143
Reno 07:10:24 -26.1 Dark Down 26.0 208.0 Low 06:57:15 - 07:23:32 5139
Carson City 07:10:24 -26.4 Dark Down 26.3 208.1 Low 06:57:16 - 07:23:33 5120
Yerington 07:10:21 -26.7 Dark Down 26.2 208.7 Low 06:57:12 - 07:23:29 5110
Gardnerville 07:10:23 -26.7 Dark Down 26.5 208.2 Low 06:57:14 - 07:23:31 5107
Hawthorne 07:10:17 -27.3 Dark Down 26.4 209.3 Low 06:57:09 - 07:23:26 5086
Tonopah 07:10:11 -27.9 Dark Down 26.3 210.8 Low 06:57:02 - 07:23:19 5062
Lee Vining 07:10:19 -27.7 Dark Down 27.1 209.0 Low 06:57:10 - 07:23:27 5055
Bishop 07:10:14 -28.4 Dark Down 27.4 209.8 Low 06:57:05 - 07:23:22 5022
Beatty 07:10:06 -29.2 Dark Down 27.1 211.5 Low 06:56:57 - 07:23:14 4996
Indian Springs 07:10:01 -29.6 Dark Down 26.9 212.6 Low 06:56:52 - 07:23:09 4977
Henderson 07:09:56 -30.2 Dark Down 27.1 213.4 Low 06:56:47 - 07:23:04 4945
Patrick 07:09:50 -31.0 Dark Down 27.1 214.6 Low 06:56:42 - 07:22:59 4907
CPSLO 07:10:19 -30.0 Dark Down 30.0 208.2 Up 06:57:10 - 07:23:27 4897
Kingman/Dolan Springs 07:09:52 -31.2 Dark Down 27.4 214.5 Low 06:56:43 - 07:23:00 4894
Laughlin/Bullhead City 07:09:53 -31.1 Dark Down 27.6 214.0 Low 06:56:45 - 07:23:02 4893
Mohave Valley 07:09:52 -31.4 Dark Down 27.9 214.1 Low 06:56:44 - 07:23:01 4877
Lake Havasu City 07:09:50 -31.8 Dark Down 28.1 214.4 Low 06:56:42 - 07:22:59 4852
Parker 07:09:50 -32.2 Dark Down 28.4 214.5 Low 06:56:42 - 07:22:59 4830
Wildwood 07:10:07 -31.6 Dark Down 30.3 210.5 Up 06:56:59 - 07:23:16 4828
Idyllwild 07:09:59 -32.3 Dark Down 29.8 212.4 Low 06:56:50 - 07:23:07 4808
George/Scottsdale 07:09:38 -32.9 Dark Down 27.6 216.9 Low 06:56:29 - 07:22:46 4799
Blythe 07:09:50 -32.7 Dark Down 28.9 214.4 Low 06:56:42 - 07:22:59 4798
Calipatria 07:09:52 -33.0 Dark Down 29.8 213.7 Low 06:56:44 - 07:23:01 4768
Yuma 07:09:47 -33.6 Dark Down 29.7 214.7 Low 06:56:39 - 07:22:56 4740

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, (2024/06/29 07:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.31 123
8Bet1Sco       16:05:26.2 -19:48:20  2.6  2.17 130
47 Lib         15:55:00.4 -19:22:59  5.9  0.32 132
PPM 230949     15:55:37.4 -18:47:28  8.2  0.70 132
PPM 230982     15:56:53.0 -19:16:18  9.8  0.23 132
385437         15:56:20.1 -19:28:00 16.9       132
Positions are for J2000

Event circumstances last updated at 2021/10/28 23:03:28 UT

Marc W. Buie, Southwest Research Institute

RECON