RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:14617443 with event index number of 2555866

Geocentric closest approach at 2028/05/12 10:03:40 UTC

J2000 position of star is 17:41:02.1 -18:50:45
Equinox of date position of star is 17:42:20.2 -18:51:20
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 13 degrees from the moon. Moon is 86% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 28.6 AU from the Sun and 27.8 AU from the Earth.
The TNO is moving 18.1 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 214 seconds.
The 1-sigma cross-track error in the shadow position is 1457 km.
The sky-plane scale is 20161.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 11.0 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578992, (2028/05/12 10:04UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.1 -26:29:32  0.9 18.16  27
35Eta Oph      17:12:00.4 -15:45:29  2.6  7.95  21
58 Oph         17:45:07.9 -21:41:39  4.9  2.89  11
PPM 267170     17:44:13.4 -20:06:57  8.5  1.31  12
PPM 233425     17:42:06.8 -18:50:10  9.8  0.14  13
578992         17:42:42.2 -18:51:29 15.7        13
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 4.2 sigma about the mid-time.
The median site spacing is 15.6 km RECON observability=1.0 and success probability=17.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:03:28 -9.1 NT Up 18.5 190.4 Really Low 09:48:28 - 10:18:28 359
Kamloops 10:04:21 -15.6 AT Up 20.4 176.1 Low 09:49:21 - 10:19:21 248
Kelowna 10:04:18 -16.0 AT Up 21.2 177.0 Low 09:49:18 - 10:19:18 221
Peachland 10:04:19 -16.2 AT Up 21.3 176.7 Low 09:49:19 - 10:19:19 215
Summerland 10:04:19 -16.3 AT Up 21.5 176.8 Low 09:49:19 - 10:19:19 209
Penticton 10:04:18 -16.3 AT Up 21.6 176.9 Low 09:49:18 - 10:19:18 207
Oliver 10:04:18 -16.6 AT Up 21.9 176.9 Low 09:49:18 - 10:19:18 193
Anarchist Mountain Observatory 10:04:18 -16.7 AT Up 22.1 177.1 Low 09:49:18 - 10:19:18 187
Tonasket 10:04:18 -17.0 AT Up 22.4 177.0 Low 09:49:18 - 10:19:18 173
Okanogan 10:04:19 -17.3 AT Up 22.7 176.9 Low 09:49:19 - 10:19:19 158
Brewster 10:04:20 -17.6 AT Up 23.0 176.6 Low 09:49:20 - 10:19:20 144
Victoria 10:04:34 -18.4 Dark Up 22.4 173.0 Low 09:49:34 - 10:19:34 135
Manson/Chelan 10:04:21 -17.9 AT Up 23.2 176.3 Low 09:49:21 - 10:19:21 132
Wenatchee 10:04:22 -18.4 Dark Up 23.7 176.1 Low 09:49:22 - 10:19:22 110
Ellensburg 10:04:23 -18.8 Dark Up 24.1 175.8 Low 09:49:23 - 10:19:23 90
Yakima 10:04:23 -19.2 Dark Up 24.5 175.8 Low 09:49:23 - 10:19:23 71
Toppenish/White Swan 10:04:22 -19.3 Dark Up 24.7 176.0 Low 09:49:22 - 10:19:22 62
PNWRO 10:04:16 -19.1 Dark Up 25.1 177.5 Low 09:49:16 - 10:19:16 55
Goldendale 10:04:24 -19.9 Dark Up 25.2 175.5 Low 09:49:24 - 10:19:24 32
The Dalles 10:04:26 -20.2 Dark Up 25.4 175.1 Low 09:49:26 - 10:19:26 18
Maupin 10:04:25 -20.6 Dark Up 25.8 175.2 Low 09:49:25 - 10:19:25 -1
Sisters 10:04:27 -21.5 Dark Up 26.7 174.7 Low 09:49:27 - 10:19:27 -48
Bend 10:04:26 -21.6 Dark Up 26.9 174.9 Low 09:49:26 - 10:19:26 -58
Oregon Observatory 10:04:27 -21.8 Dark Up 27.1 174.8 Low 09:49:27 - 10:19:27 -68
North Lake 10:04:25 -22.1 Dark Up 27.8 175.3 Low 09:49:25 - 10:19:25 -97
Chiloquin 10:04:29 -23.1 Dark Up 28.4 174.3 Low 09:49:29 - 10:19:29 -141
Lakeview 10:04:22 -22.8 Dark Up 28.9 175.9 Low 09:49:22 - 10:19:22 -149
Klamath Falls 10:04:29 -23.3 Dark Up 28.7 174.4 Low 09:49:29 - 10:19:29 -159
Cedarville 10:04:22 -23.3 Dark Up 29.5 176.0 Low 09:49:22 - 10:19:22 -183
Dunrhomin 10:03:13 -17.2 AT Up 30.0 192.1 Up 09:48:13 - 10:18:13 -184
Fall River/Burney 10:04:27 -24.2 Dark Up 29.9 174.7 Low 09:49:27 - 10:19:27 -221
Susanville 10:04:24 -24.4 Dark Up 30.6 175.5 Up 09:49:24 - 10:19:24 -250
Gimple 10:04:25 -24.7 Dark Up 30.9 175.2 Up 09:49:25 - 10:19:25 -268
Greenville 10:04:25 -24.8 Dark Up 30.9 175.1 Up 09:49:25 - 10:19:25 -268
Quincy 10:04:25 -24.9 Dark Up 31.1 175.1 Up 09:49:25 - 10:19:25 -280
Portola 10:04:23 -24.9 Dark Up 31.2 175.7 Up 09:49:23 - 10:19:23 -283
Reno 10:04:20 -24.8 Dark Up 31.5 176.3 Up 09:49:20 - 10:19:20 -293
Carson City 10:04:20 -25.1 Dark Up 31.9 176.4 Up 09:49:20 - 10:19:20 -314
Yerington 10:04:17 -25.0 Dark Up 32.1 177.0 Up 09:49:17 - 10:19:17 -320
Gardnerville 10:04:20 -25.3 Dark Up 32.1 176.4 Up 09:49:20 - 10:19:20 -328
Hawthorne 10:04:15 -25.1 Dark Up 32.6 177.6 Up 09:49:15 - 10:19:15 -344
Tonopah 10:04:08 -24.9 Dark Up 33.1 179.2 Up 09:49:08 - 10:19:08 -361
Lee Vining 10:04:17 -25.8 Dark Up 33.1 177.1 Up 09:49:17 - 10:19:17 -381
Bishop 10:04:13 -26.0 Dark Up 33.8 177.8 Up 09:49:13 - 10:19:13 -413
Beatty 10:04:05 -25.6 Dark Up 34.3 179.7 Up 09:49:05 - 10:19:05 -430
Indian Springs 10:04:00 -25.3 Dark Up 34.6 180.9 Up 09:49:00 - 10:19:00 -443
Henderson 10:03:56 -25.4 Dark Up 35.1 181.7 Up 09:48:56 - 10:18:56 -473
Patrick 10:03:51 -25.3 Dark Up 35.7 183.0 Up 09:48:51 - 10:18:51 -506
Kingman/Dolan Springs 10:03:52 -25.6 Dark Up 35.9 182.8 Up 09:48:52 - 10:18:52 -521
Laughlin/Bullhead City 10:03:54 -25.9 Dark Up 36.0 182.2 Up 09:48:54 - 10:18:54 -527
Mohave Valley 10:03:54 -26.1 Dark Up 36.2 182.2 Up 09:48:54 - 10:18:54 -544
Lake Havasu City 10:03:53 -26.2 Dark Up 36.6 182.5 Up 09:48:53 - 10:18:53 -569
Parker 10:03:52 -26.5 Dark Up 37.0 182.5 Up 09:48:52 - 10:18:52 -592
George/Scottsdale 10:03:40 -25.5 Dark Up 37.3 185.4 Up 09:48:40 - 10:18:40 -607
Wildwood 10:04:14 -28.7 Dark Up 37.0 177.5 Up 09:49:14 - 10:19:14 -625
Idyllwild 10:04:05 -28.1 Dark Up 37.4 179.7 Up 09:49:05 - 10:19:05 -634
Calipatria 10:03:58 -27.9 Dark Up 38.0 181.1 Up 09:48:58 - 10:18:58 -669
Yuma 10:03:54 -27.8 Dark Up 38.4 182.2 Up 09:48:54 - 10:18:54 -692

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 578992, (2028/05/12 10:04UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.16  27
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.95  21
58 Oph         17:43:25.7 -21:41:00  4.9  2.89  11
PPM 267170     17:42:32.3 -20:06:15  8.5  1.31  12
PPM 233425     17:40:26.7 -18:49:24  9.8  0.14  13
578992         17:41:02.1 -18:50:45 15.7        13
Positions are for J2000

Event circumstances last updated at 2022/02/10 01:15:18 UT

Marc W. Buie, Southwest Research Institute

RECON