RECON: TNO occultation with 533396

Event between (533396) 14GQ53 and star GA0800:09440191 with event index number of 2590900

Geocentric closest approach at 2026/07/02 07:42:45 UTC

J2000 position of star is 18:20:57.0 -09:33:01
Equinox of date position of star is 18:22:09.7 -09:32:19
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 34 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 22.1 AU from the Sun and 21.1 AU from the Earth.
The TNO is moving 23.2 km/sec on the sky relative to the star, or, 5.5 arcsec/hr.
The 1-sigma error in the time of the event is 153 seconds.
The 1-sigma cross-track error in the shadow position is 1512 km.
The sky-plane scale is 15319.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 3.4 sec chord
Diameter=32.6 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 533396, (2026/07/02 07:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:02.2 -26:29:18  0.9 31.31  56
60Bet Oph      17:44:47.0 +04:33:29  2.8 16.93  49
Zet Sct        18:25:06.7 -08:55:07  4.2  0.91  34
PPM 201623     18:21:31.3 -09:35:01  7.2  0.22  35
PPM 201638     18:22:08.4 -09:30:03  9.5  0.07  35
533396         18:22:24.4 -09:32:11 17.0        34
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 18.4 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:42:10 -16.1 AT Up 29.8 180.3 Low 07:28:55 - 07:55:24 8384
Kelowna 07:42:07 -17.0 AT Up 30.6 181.4 Up 07:28:53 - 07:55:22 8329
Peachland 07:42:08 -17.1 AT Up 30.7 181.0 Up 07:28:54 - 07:55:23 8326
Summerland 07:42:08 -17.2 AT Up 30.8 181.1 Up 07:28:53 - 07:55:22 8317
Penticton 07:42:08 -17.3 AT Up 30.9 181.3 Up 07:28:54 - 07:55:23 8312
Victoria 07:42:20 -18.0 Dark Up 31.9 176.9 Up 07:29:05 - 07:55:34 8296
Oliver 07:42:08 -17.7 AT Up 31.3 181.3 Up 07:28:53 - 07:55:22 8292
Sleaford 07:41:28 -14.5 AT Up 27.1 196.2 Low 07:28:14 - 07:54:43 8291
Anarchist Mountain Observatory 07:42:07 -17.8 AT Up 31.4 181.5 Up 07:28:53 - 07:55:22 8280
Tonasket 07:42:07 -18.1 Dark Up 31.7 181.4 Up 07:28:53 - 07:55:22 8263
Okanogan 07:42:08 -18.5 Dark Up 32.1 181.3 Up 07:28:54 - 07:55:23 8245
Brewster 07:42:09 -18.7 Dark Up 32.4 181.0 Up 07:28:54 - 07:55:23 8231
Manson/Chelan 07:42:10 -18.9 Dark Up 32.6 180.6 Up 07:28:56 - 07:55:25 8223
Wenatchee 07:42:11 -19.4 Dark Up 33.0 180.4 Up 07:28:56 - 07:55:25 8197
Ellensburg 07:42:12 -19.8 Dark Up 33.5 180.2 Up 07:28:57 - 07:55:26 8174
Yakima 07:42:12 -20.2 Dark Up 33.9 180.1 Up 07:28:57 - 07:55:26 8150
Toppenish/White Swan 07:42:11 -20.4 Dark Up 34.1 180.3 Up 07:28:57 - 07:55:26 8134
Goldendale 07:42:13 -20.9 Dark Up 34.6 179.8 Up 07:28:58 - 07:55:27 8105
The Dalles 07:42:14 -21.1 Dark Up 34.9 179.4 Up 07:29:00 - 07:55:29 8095
PNWRO 07:42:07 -20.9 Dark Up 34.4 182.1 Up 07:28:52 - 07:55:21 8094
Maupin 07:42:14 -21.5 Dark Up 35.3 179.5 Up 07:28:59 - 07:55:28 8068
Sisters 07:42:16 -22.4 Dark Up 36.1 178.9 Up 07:29:02 - 07:55:31 8018
Bend 07:42:15 -22.6 Dark Up 36.4 179.2 Up 07:29:01 - 07:55:30 7999
Oregon Observatory 07:42:16 -22.8 Dark Up 36.6 179.1 Up 07:29:02 - 07:55:31 7990
North Lake 07:42:14 -23.5 Dark Up 37.2 179.7 Up 07:29:00 - 07:55:29 7941
Chiloquin 07:42:19 -24.1 Dark Up 37.9 178.6 Up 07:29:04 - 07:55:33 7908
Klamath Falls 07:42:18 -24.4 Dark Up 38.2 178.6 Up 07:29:03 - 07:55:32 7883
Lakeview 07:42:13 -24.6 Dark Up 38.3 180.4 Up 07:28:59 - 07:55:28 7863
Cedarville 07:42:13 -25.2 Dark Up 38.9 180.6 Up 07:28:58 - 07:55:27 7816
Fall River/Burney 07:42:17 -25.6 Dark Up 39.4 179.1 Up 07:29:03 - 07:55:32 7798
Susanville 07:42:15 -26.3 Dark Up 40.0 180.0 Up 07:29:00 - 07:55:29 7744
Greenville 07:42:16 -26.6 Dark Up 40.3 179.7 Up 07:29:02 - 07:55:31 7728
Gimple 07:42:16 -26.6 Dark Up 40.3 179.8 Up 07:29:01 - 07:55:30 7727
Quincy 07:42:16 -26.8 Dark Up 40.5 179.7 Up 07:29:02 - 07:55:31 7714
Portola 07:42:15 -26.9 Dark Up 40.6 180.3 Up 07:29:00 - 07:55:29 7699
Reno 07:42:12 -27.2 Dark Up 40.9 181.1 Up 07:28:58 - 07:55:27 7672
Carson City 07:42:13 -27.6 Dark Up 41.3 181.2 Up 07:28:58 - 07:55:27 7645
Gardnerville 07:42:12 -27.8 Dark Up 41.5 181.2 Up 07:28:58 - 07:55:27 7627
Yerington 07:42:10 -27.8 Dark Up 41.4 182.0 Up 07:28:56 - 07:55:25 7623
Hawthorne 07:42:09 -28.3 Dark Up 41.9 182.7 Up 07:28:54 - 07:55:23 7581
Lee Vining 07:42:11 -28.9 Dark Up 42.5 182.1 Up 07:28:56 - 07:55:25 7547
Tonopah 07:42:03 -28.9 Dark Up 42.3 184.6 Up 07:28:49 - 07:55:18 7528
Dunrhomin 07:41:21 -26.1 Dark Up 38.2 199.3 Up 07:28:06 - 07:54:35 7508
Bishop 07:42:08 -29.5 Dark Up 43.0 183.1 Up 07:28:54 - 07:55:23 7492
Beatty 07:42:02 -30.0 Dark Up 43.4 185.3 Up 07:28:48 - 07:55:17 7433
Indian Springs 07:41:58 -30.4 Dark Up 43.6 186.7 Up 07:28:44 - 07:55:13 7392
Henderson 07:41:56 -30.9 Dark Up 44.1 187.7 Up 07:28:41 - 07:55:10 7340
Patrick 07:41:52 -31.6 Dark Up 44.6 189.3 Up 07:28:38 - 07:55:07 7275
Laughlin/Bullhead City 07:41:55 -31.8 Dark Up 44.9 188.4 Up 07:28:40 - 07:55:09 7266
Kingman/Dolan Springs 07:41:53 -31.8 Dark Up 44.8 189.1 Up 07:28:38 - 07:55:07 7260
Mohave Valley 07:41:55 -32.1 Dark Up 45.2 188.5 Up 07:28:40 - 07:55:09 7244
Wildwood 07:42:10 -32.7 Dark Up 46.3 183.0 Up 07:28:56 - 07:55:25 7241
Lake Havasu City 07:41:54 -32.5 Dark Up 45.6 188.9 Up 07:28:39 - 07:55:08 7208
Idyllwild 07:42:03 -33.2 Dark Up 46.6 185.6 Up 07:28:49 - 07:55:18 7185
Parker 07:41:54 -32.8 Dark Up 45.9 189.0 Up 07:28:40 - 07:55:09 7180
Calipatria 07:41:59 -33.8 Dark Up 47.0 187.4 Up 07:28:45 - 07:55:14 7116
George/Scottsdale 07:41:45 -33.2 Dark Up 45.9 192.4 Up 07:28:30 - 07:54:59 7107
Yuma 07:41:55 -34.3 Dark Up 47.4 188.7 Up 07:28:41 - 07:55:10 7067

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 533396, (2026/07/02 07:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 31.31  56
60Bet Oph      17:43:28.3 +04:34:06  2.8 16.93  49
Zet Sct        18:23:39.7 -08:56:03  4.2  0.91  34
PPM 201623     18:20:03.8 -09:35:50  7.2  0.22  35
PPM 201638     18:20:41.0 -09:30:52  9.5  0.07  35
533396         18:20:57.0 -09:33:01 17.0        34
Positions are for J2000

Event circumstances last updated at 2022/01/14 23:57:54 UT

Marc W. Buie, Southwest Research Institute

RECON