RECON: TNO occultation with 533559

Event between (533559) 14JG80 and star GA0700:18042814 with event index number of 2589034

Geocentric closest approach at 2028/05/08 11:02:27 UTC

J2000 position of star is 17:51:14.2 -18:02:58
Equinox of date position of star is 17:52:34.6 -18:03:15
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 45 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 26.3 AU from the Sun and 25.6 AU from the Earth.
The TNO is moving 18.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 199 seconds.
The 1-sigma cross-track error in the shadow position is 2534 km.
The sky-plane scale is 18538.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 8.8 sec chord
Diameter=64.4 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 533559, (2028/05/08 11:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.0 -26:29:32  0.9 20.67  26
35Eta Oph      17:12:00.4 -15:45:29  2.6 10.04  36
PPM 233754     17:57:35.1 -18:48:16  6.5  1.34  46
PPM 233701     17:54:03.0 -18:05:41  7.9  0.28  46
PPM 233654     17:52:09.6 -18:07:22  9.5  0.19  45
533559         17:52:53.7 -18:03:18 16.5        46
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 4.5 sigma about the mid-time.
The median site spacing is 22.4 km RECON observability=0.6 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 11:02:03 -11.0 NT Up 21.2 184.2 Low 10:47:03 - 11:17:03 10339
Sleaford 11:01:10 -3.2 CT Down 18.1 198.4 Really Low 10:46:10 - 11:16:10 10303
Kelowna 11:01:58 -11.1 NT Up 21.9 185.1 Low 10:46:58 - 11:16:58 10302
Peachland 11:02:00 -11.4 NT Up 22.1 184.8 Low 10:47:00 - 11:17:00 10298
Summerland 11:01:59 -11.4 NT Up 22.2 184.9 Low 10:46:59 - 11:16:59 10291
Penticton 11:01:59 -11.4 NT Up 22.3 185.1 Low 10:46:59 - 11:16:59 10288
Oliver 11:02:00 -11.7 NT Up 22.6 185.1 Low 10:47:00 - 11:17:00 10273
Anarchist Mountain Observatory 11:01:58 -11.7 NT Up 22.8 185.3 Low 10:46:58 - 11:16:58 10265
Victoria 11:02:14 -13.9 AT Up 23.4 181.2 Low 10:47:14 - 11:17:14 10258
Okanogan 11:01:59 -12.2 AT Up 23.4 185.1 Low 10:46:59 - 11:16:59 10237
Brewster 11:01:59 -12.5 AT Up 23.7 184.9 Low 10:46:59 - 11:16:59 10226
Manson/Chelan 11:02:01 -12.9 AT Up 24.0 184.5 Low 10:47:01 - 11:17:01 10218
Wenatchee 11:02:01 -13.3 AT Up 24.4 184.4 Low 10:47:01 - 11:17:01 10197
Ellensburg 11:02:02 -13.7 AT Up 24.9 184.1 Low 10:47:02 - 11:17:02 10178
Yakima 11:02:02 -14.0 AT Up 25.3 184.1 Low 10:47:02 - 11:17:02 10159
Toppenish/White Swan 11:02:01 -14.0 AT Up 25.5 184.3 Low 10:47:01 - 11:17:01 10148
PNWRO 11:01:55 -13.6 AT Up 25.7 185.9 Low 10:46:55 - 11:16:55 10123
The Dalles 11:02:05 -15.0 AT Up 26.3 183.5 Low 10:47:05 - 11:17:05 10113
Maupin 11:02:04 -15.2 AT Up 26.7 183.6 Low 10:47:04 - 11:17:04 10092
Sisters 11:02:06 -16.1 AT Up 27.6 183.2 Low 10:47:06 - 11:17:06 10050
Bend 11:02:05 -16.1 AT Up 27.8 183.4 Low 10:47:05 - 11:17:05 10036
Oregon Observatory 11:02:05 -16.3 AT Up 28.0 183.3 Low 10:47:05 - 11:17:05 10028
Chiloquin 11:02:07 -17.5 AT Up 29.3 182.9 Low 10:47:07 - 11:17:07 9959
Klamath Falls 11:02:06 -17.7 AT Up 29.7 183.0 Low 10:47:06 - 11:17:06 9940
Cedarville 11:01:59 -17.3 AT Up 30.3 184.8 Up 10:46:59 - 11:16:59 9894
Fall River/Burney 11:02:05 -18.3 Dark Up 30.8 183.4 Up 10:47:05 - 11:17:05 9872
Greenville 11:02:03 -18.7 Dark Up 31.7 184.0 Up 10:47:03 - 11:17:03 9818
Gimple 11:02:02 -18.6 Dark Up 31.7 184.1 Up 10:47:02 - 11:17:02 9817
Quincy 11:02:02 -18.8 Dark Up 31.9 184.0 Up 10:47:02 - 11:17:02 9806
Portola 11:02:01 -18.7 Dark Up 32.0 184.5 Up 10:47:01 - 11:17:01 9796
Reno 11:01:58 -18.5 Dark Up 32.2 185.2 Up 10:46:58 - 11:16:58 9777
Carson City 11:01:57 -18.7 Dark Up 32.6 185.3 Up 10:46:57 - 11:16:57 9756
Gardnerville 11:01:57 -18.9 Dark Up 32.8 185.4 Up 10:46:57 - 11:16:57 9741
Yerington 11:01:54 -18.5 Dark Up 32.7 186.0 Up 10:46:54 - 11:16:54 9741
Hawthorne 11:01:52 -18.5 Dark Up 33.2 186.6 Up 10:46:52 - 11:16:52 9709
Dunrhomin 11:00:52 -9.3 NT Up 29.1 200.8 Low 10:45:52 - 11:15:52 9701
CU-SBO 11:00:53 -9.5 NT Up 29.3 200.7 Low 10:45:53 - 11:15:53 9687
Lee Vining 11:01:54 -19.2 Dark Up 33.8 186.1 Up 10:46:54 - 11:16:54 9678
Bishop 11:01:50 -19.1 Dark Up 34.3 187.0 Up 10:46:50 - 11:16:50 9636
Beatty 11:01:42 -18.5 Dark Up 34.6 188.9 Up 10:46:42 - 11:16:42 9596
Patrick 11:01:28 -17.6 AT Up 35.6 192.3 Up 10:46:28 - 11:16:28 9477
Laughlin/Bullhead City 11:01:31 -18.2 Dark Up 36.0 191.5 Up 10:46:31 - 11:16:31 9466
Wildwood 11:01:50 -21.4 Dark Up 37.6 187.0 Up 10:46:50 - 11:16:50 9421
Lake Havasu City 11:01:31 -18.5 Dark Up 36.6 191.9 Up 10:46:31 - 11:16:31 9418
Idyllwild 11:01:41 -20.5 Dark Up 37.7 189.3 Up 10:46:41 - 11:16:41 9385
George/Scottsdale 11:01:18 -17.3 AT Up 36.9 194.9 Up 10:46:18 - 11:16:18 9344
Calipatria 11:01:36 -20.1 Dark Up 38.1 190.7 Up 10:46:36 - 11:16:36 9333
Yuma 11:01:32 -19.8 Dark Up 38.4 191.9 Up 10:46:32 - 11:16:32 9296

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 533559, (2028/05/08 11:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.67  26
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.04  36
PPM 233754     17:55:55.0 -18:48:08  6.5  1.34  46
PPM 233701     17:52:23.4 -18:05:24  7.9  0.28  46
PPM 233654     17:50:30.0 -18:07:01  9.5  0.19  45
533559         17:51:14.2 -18:02:58 16.5        45
Positions are for J2000

Event circumstances last updated at 2022/11/29 03:15:08 UT

Marc W. Buie, Southwest Research Institute

RECON