RECON: TNO occultation with 578832

Event between (578832) 14GP53 and star GA0760:06179634 with event index number of 2550493

Geocentric closest approach at 2025/06/06 07:06:10 UTC

J2000 position of star is 16:53:22.0 -13:41:02
Equinox of date position of star is 16:54:36.1 -13:43:06
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 54 degrees from the moon. Moon is 79% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 22.9 AU from the Sun and 21.9 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 166 seconds.
The 1-sigma cross-track error in the shadow position is 1491 km.
The sky-plane scale is 15873.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.9
Diameter=98.2 km assuming a 5% albedo -- 4.3 sec chord
Diameter=40.1 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 578832, (2025/06/06 07:06UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:58.2 -26:29:10  0.9 13.93  49
35Eta Oph      17:11:50.3 -15:45:17  2.6  4.59  58
PPM 232182     16:49:53.8 -14:57:09  6.2  1.71  53
PPM 232252     16:53:41.5 -14:24:41  8.3  0.74  54
PPM 232311     16:56:12.4 -13:44:17  9.5  0.34  54
578832         16:54:48.2 -13:43:26 16.7        54
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 17.5 km RECON observability=1.0 and success probability=2.6%
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 07:06:57 -16.3 AT Up 25.3 168.2 Low 06:52:39 - 07:21:15 4874
Kelowna 07:06:58 -16.6 AT Up 25.7 168.0 Low 06:52:40 - 07:21:16 4853
Peachland 07:06:59 -16.7 AT Up 25.8 167.7 Low 06:52:41 - 07:21:17 4845
Summerland 07:06:59 -16.8 AT Up 25.9 167.8 Low 06:52:41 - 07:21:17 4838
Penticton 07:06:58 -16.9 AT Up 26.0 167.9 Low 06:52:40 - 07:21:16 4836
Oliver 07:06:59 -17.3 AT Up 26.4 167.8 Low 06:52:41 - 07:21:17 4817
Anarchist Mountain Observatory 07:06:58 -17.5 AT Up 26.6 168.0 Low 06:52:40 - 07:21:16 4810
Tonasket 07:06:59 -17.8 AT Up 26.8 167.9 Low 06:52:41 - 07:21:17 4793
Okanogan 07:06:59 -18.1 Dark Up 27.2 167.7 Low 06:52:41 - 07:21:17 4774
Brewster 07:07:00 -18.3 Dark Up 27.4 167.5 Low 06:52:42 - 07:21:18 4758
Victoria 07:07:11 -17.3 AT Up 26.4 163.7 Low 06:52:53 - 07:21:29 4753
Manson/Chelan 07:07:01 -18.5 Dark Up 27.5 167.1 Low 06:52:43 - 07:21:19 4744
Wenatchee 07:07:02 -18.9 Dark Up 28.0 166.8 Low 06:52:44 - 07:21:20 4717
Ellensburg 07:07:03 -19.3 Dark Up 28.3 166.5 Low 06:52:45 - 07:21:21 4693
Yakima 07:07:03 -19.7 Dark Up 28.7 166.5 Low 06:52:45 - 07:21:21 4670
Pasco 07:06:59 -20.2 Dark Up 29.3 168.0 Low 06:52:41 - 07:21:17 4661
Toppenish/White Swan 07:07:03 -19.9 Dark Up 29.0 166.6 Low 06:52:45 - 07:21:21 4659
PNWRO 07:06:58 -20.5 Dark Up 29.6 168.2 Low 06:52:40 - 07:21:16 4649
Goldendale 07:07:05 -20.4 Dark Up 29.4 166.1 Low 06:52:47 - 07:21:23 4624
The Dalles 07:07:06 -20.5 Dark Up 29.6 165.7 Low 06:52:48 - 07:21:24 4608
Maupin 07:07:06 -20.9 Dark Up 30.0 165.7 Up 06:52:48 - 07:21:24 4585
Redmond 07:07:07 -21.8 Dark Up 30.9 165.5 Up 06:52:49 - 07:21:25 4531
Sisters 07:07:08 -21.7 Dark Up 30.8 165.1 Up 06:52:50 - 07:21:26 4529
Bend 07:07:08 -22.0 Dark Up 31.1 165.3 Up 06:52:50 - 07:21:26 4517
Oregon Observatory 07:07:08 -22.1 Dark Up 31.2 165.1 Up 06:52:50 - 07:21:26 4505
La Pine/Gilchrist 07:07:08 -22.3 Dark Up 31.4 165.0 Up 06:52:50 - 07:21:26 4492
North Lake 07:07:07 -22.9 Dark Up 31.9 165.6 Up 06:52:49 - 07:21:25 4471
Paisley 07:07:06 -23.5 Dark Up 32.5 166.0 Up 06:52:48 - 07:21:24 4439
Chiloquin 07:07:10 -23.3 Dark Up 32.4 164.5 Up 06:52:52 - 07:21:28 4420
Lakeview 07:07:05 -24.0 Dark Up 33.1 166.1 Up 06:52:47 - 07:21:23 4409
Klamath Falls 07:07:10 -23.7 Dark Up 32.8 164.5 Up 06:52:52 - 07:21:28 4399
Dunrhomin 07:06:11 -27.0 Dark Up 36.0 183.6 Up 06:51:53 - 07:20:29 4373
Cedarville 07:07:05 -24.7 Dark Up 33.7 166.2 Up 06:52:47 - 07:21:23 4368
Fall River/Burney 07:07:10 -24.9 Dark Up 34.0 164.7 Up 06:52:52 - 07:21:28 4326
Susanville 07:07:07 -25.6 Dark Up 34.7 165.5 Up 06:52:49 - 07:21:25 4292
Gimple 07:07:08 -25.9 Dark Up 34.9 165.2 Up 06:52:50 - 07:21:26 4271
Greenville 07:07:09 -25.9 Dark Up 34.9 165.1 Up 06:52:51 - 07:21:27 4271
Quincy 07:07:09 -26.1 Dark Up 35.1 165.0 Up 06:52:51 - 07:21:27 4257
Portola 07:07:07 -26.3 Dark Up 35.3 165.6 Up 06:52:49 - 07:21:25 4253
Reno 07:07:05 -26.6 Dark Up 35.7 166.3 Up 06:52:47 - 07:21:23 4241
Carson City 07:07:05 -27.0 Dark Up 36.1 166.2 Up 06:52:47 - 07:21:23 4216
Yerington 07:07:03 -27.3 Dark Up 36.4 166.9 Up 06:52:45 - 07:21:21 4208
Gardnerville 07:07:05 -27.2 Dark Up 36.3 166.3 Up 06:52:47 - 07:21:23 4200
Hawthorne 07:07:01 -27.8 Dark Up 36.9 167.5 Up 06:52:43 - 07:21:19 4181
Tonopah 07:06:56 -28.5 Dark Up 37.6 169.1 Up 06:52:38 - 07:21:14 4160
Lee Vining 07:07:03 -28.3 Dark Up 37.4 166.8 Up 06:52:45 - 07:21:21 4138
Bishop 07:07:01 -29.0 Dark Up 38.1 167.6 Up 06:52:43 - 07:21:19 4102
Beatty 07:06:55 -29.7 Dark Up 38.8 169.5 Up 06:52:37 - 07:21:13 4081
Indian Springs 07:06:51 -30.2 Dark Up 39.3 170.8 Up 06:52:33 - 07:21:09 4066
Henderson 07:06:48 -30.8 Dark Up 39.9 171.5 Up 06:52:30 - 07:21:06 4032
Patrick 07:06:44 -31.5 Dark Up 40.6 172.9 Up 06:52:26 - 07:21:02 3995
Kingman/Dolan Springs 07:06:45 -31.7 Dark Up 40.8 172.6 Up 06:52:27 - 07:21:03 3977
Laughlin/Bullhead City 07:06:47 -31.7 Dark Up 40.8 171.9 Up 06:52:29 - 07:21:05 3972
Mohave Valley 07:06:47 -32.0 Dark Up 41.1 171.9 Up 06:52:29 - 07:21:05 3952
CPSLO 07:07:10 -30.6 Dark Up 39.7 164.5 Up 06:52:52 - 07:21:28 3933
Lake Havasu City 07:06:46 -32.4 Dark Up 41.5 172.2 Up 06:52:28 - 07:21:04 3924
Parker 07:06:46 -32.8 Dark Up 41.8 172.2 Up 06:52:28 - 07:21:04 3898
George/Scottsdale 07:06:36 -33.4 Dark Up 42.5 175.3 Up 06:52:18 - 07:20:54 3882
Wildwood 07:07:03 -32.2 Dark Up 41.2 166.7 Up 06:52:45 - 07:21:21 3861
Blythe 07:06:47 -33.2 Dark Up 42.3 171.7 Up 06:52:29 - 07:21:05 3856
Idyllwild 07:06:55 -32.8 Dark Up 41.9 169.0 Up 06:52:37 - 07:21:13 3850
Calipatria 07:06:51 -33.6 Dark Up 42.7 170.5 Up 06:52:33 - 07:21:09 3812
Yuma 07:06:47 -34.1 Dark Up 43.2 171.6 Up 06:52:29 - 07:21:05 3785

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 578832, (2025/06/06 07:06UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.93  49
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.59  58
PPM 232182     16:48:27.0 -14:54:34  6.2  1.71  53
PPM 232252     16:52:14.9 -14:22:14  8.3  0.74  54
PPM 232311     16:54:46.2 -13:41:56  9.5  0.34  54
578832         16:53:22.0 -13:41:02 16.7        54
Positions are for J2000

Event circumstances last updated at 2021/11/10 00:08:25 UT

Marc W. Buie, Southwest Research Institute

RECON