RECON: TNO occultation with 533398

Event between (533398) 14GA54 and star GA0740:21140745 with event index number of 2751942

Geocentric closest approach at 2029/05/16 07:08:13 UTC

J2000 position of star is 18:31:08.5 -14:28:01
Equinox of date position of star is 18:32:32.2 -14:26:53
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon. Moon is 7% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 31.0 AU from the Sun and 30.2 AU from the Earth.
Apparent velocity is 15.8 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 553 seconds.
The 1-sigma cross-track error in the shadow position is 2811 km.
The sky-plane scale is 21938.1 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=215.8 km assuming a 5% albedo -- 13.6 sec chord
Diameter=88.1 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 533398, (2029/05/16 07:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.8 -26:29:40  0.9 30.82 163
Nunki          18:57:05.1 -26:15:27  2.0 13.11 164
PPM 234686     18:34:24.0 -14:50:31  5.1  0.55 165
PPM 234676     18:34:01.1 -14:37:15  6.8  0.34 165
533398         18:32:48.8 -14:26:39 16.0       165
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 1.6 sigma about the mid-time.
The median site spacing is 26.6 km RECON observability=0.2 and success probability=8.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:11:16 -18.7 Dark Down 14.4 138.4 Really Low 06:56:16 - 07:26:16 342
Kamloops 07:12:02 -19.4 Dark Down 8.7 125.8 Really Low 06:57:02 - 07:27:02 45
Kelowna 07:12:03 -20.3 Dark Down 9.6 126.5 Really Low 06:57:03 - 07:27:03 11
Peachland 07:12:04 -20.4 Dark Down 9.6 126.2 Really Low 06:57:04 - 07:27:04 -1
Summerland 07:12:05 -20.6 Dark Down 9.7 126.3 Really Low 06:57:05 - 07:27:05 -8
Penticton 07:12:05 -20.6 Dark Down 9.8 126.4 Really Low 06:57:05 - 07:27:05 -11
Oliver 07:12:06 -21.0 Dark Down 10.0 126.3 Really Low 06:57:06 - 07:27:06 -32
Anarchist Mountain Observatory 07:12:06 -21.2 Dark Down 10.2 126.5 Really Low 06:57:06 - 07:27:06 -39
Okanogan 07:12:10 -21.8 Dark Down 10.5 126.2 Really Low 06:57:10 - 07:27:10 -83
Brewster 07:12:11 -22.0 Dark Down 10.5 126.0 Really Low 06:57:11 - 07:27:11 -104
Manson/Chelan 07:12:13 -22.2 Dark Down 10.5 125.7 Really Low 06:57:13 - 07:27:13 -124
Victoria 07:12:18 -21.1 Dark Down 8.3 123.1 Really Low 06:57:18 - 07:27:18 -140
Wenatchee 07:12:16 -22.6 Dark Down 10.6 125.5 Really Low 06:57:16 - 07:27:16 -157
Ellensburg 07:12:18 -23.0 Dark Down 10.8 125.2 Really Low 06:57:18 - 07:27:18 -187
Yakima 07:12:20 -23.4 Dark Down 11.0 125.2 Really Low 06:57:20 - 07:27:20 -214
PNWRO 07:12:17 -24.2 Dark Down 12.3 126.4 Really Low 06:57:17 - 07:27:17 -223
Toppenish/White Swan 07:12:20 -23.6 Dark Down 11.2 125.3 Really Low 06:57:20 - 07:27:20 -226
The Dalles 07:12:25 -24.3 Dark Down 11.2 124.5 Really Low 06:57:25 - 07:27:25 -292
Maupin 07:12:27 -24.7 Dark Down 11.5 124.5 Really Low 06:57:27 - 07:27:27 -318
Dunrhomin 07:11:51 -30.5 Dark Down 23.5 136.5 Low 06:56:51 - 07:26:51 -377
Sisters 07:12:31 -25.5 Dark Down 11.7 124.0 Really Low 06:57:31 - 07:27:31 -387
Nikitin 07:11:51 -30.6 Dark Down 23.6 136.4 Low 06:56:51 - 07:26:51 -390
CU-SBO 07:11:51 -30.7 Dark Down 23.6 136.3 Low 06:56:51 - 07:26:51 -396
Bend 07:12:31 -25.8 Dark Down 12.0 124.2 Really Low 06:57:31 - 07:27:31 -399
Oregon Observatory 07:12:32 -25.9 Dark Down 12.1 124.0 Really Low 06:57:32 - 07:27:32 -413
Chiloquin 07:12:39 -27.1 Dark Down 12.6 123.5 Really Low 06:57:39 - 07:27:39 -515
Klamath Falls 07:12:40 -27.5 Dark Down 12.8 123.5 Really Low 06:57:40 - 07:27:40 -538
Cedarville 07:12:38 -28.4 Dark Down 14.2 124.6 Really Low 06:57:38 - 07:27:38 -557
Fall River/Burney 07:12:43 -28.7 Dark Down 13.7 123.6 Really Low 06:57:43 - 07:27:43 -617
Gimple 07:12:45 -29.7 Dark Down 14.5 123.8 Really Low 06:57:45 - 07:27:45 -674
Greenville 07:12:45 -29.7 Dark Down 14.5 123.7 Really Low 06:57:45 - 07:27:45 -675
Portola 07:12:45 -30.1 Dark Down 15.0 124.0 Really Low 06:57:45 - 07:27:45 -690
Quincy 07:12:46 -29.9 Dark Down 14.6 123.7 Really Low 06:57:46 - 07:27:46 -690
Reno 07:12:44 -30.4 Dark Down 15.5 124.5 Really Low 06:57:44 - 07:27:44 -697
Carson City 07:12:45 -30.8 Dark Down 15.8 124.4 Really Low 06:57:45 - 07:27:45 -724
Yerington 07:12:43 -31.1 Dark Down 16.3 124.8 Really Low 06:57:43 - 07:27:43 -726
Gardnerville 07:12:46 -31.0 Dark Down 15.9 124.4 Really Low 06:57:46 - 07:27:46 -742
Hawthorne 07:12:43 -31.6 Dark Down 16.9 125.1 Really Low 06:57:43 - 07:27:43 -751
Lee Vining 07:12:47 -32.1 Dark Down 16.9 124.6 Really Low 06:57:47 - 07:27:47 -804
Bishop 07:12:47 -32.8 Dark Down 17.7 125.0 Really Low 06:57:47 - 07:27:47 -836
Beatty 07:12:43 -33.4 Dark Down 19.0 126.1 Really Low 06:57:43 - 07:27:43 -840
Patrick 07:12:37 -35.2 Dark Down 21.8 127.9 Low 06:57:37 - 07:27:37 -899
Laughlin/Bullhead City 07:12:40 -35.4 Dark Down 21.5 127.3 Low 06:57:40 - 07:27:40 -933
Lake Havasu City 07:12:41 -36.1 Dark Down 22.0 127.2 Low 06:57:41 - 07:27:41 -982
George/Scottsdale 07:12:34 -37.0 Dark Down 24.1 128.9 Low 06:57:34 - 07:27:34 -995
Idyllwild 07:12:52 -36.6 Dark Down 20.9 125.2 Low 06:57:52 - 07:27:52 -1092
Wildwood 07:12:57 -36.0 Dark Down 19.4 124.0 Really Low 06:57:57 - 07:27:57 -1102
Calipatria 07:12:50 -37.3 Dark Down 22.1 125.9 Low 06:57:50 - 07:27:50 -1118
Yuma 07:12:48 -37.9 Dark Down 22.9 126.4 Low 06:57:48 - 07:27:48 -1135

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 533398, (2029/05/16 07:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 30.82 163
Nunki          18:55:15.9 -26:17:49  2.0 13.11 164
PPM 234686     18:32:43.3 -14:51:57  5.1  0.55 165
PPM 234676     18:32:20.7 -14:38:40  6.8  0.34 165
533398         18:31:08.5 -14:28:01 16.0       165
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:35:25 UT

Marc W. Buie, Southwest Research Institute

RECON