RECON: TNO occultation with 500883

Event between (500883) 13JJ65 and star GA0800:05936744 with event index number of 2336102

Geocentric closest approach at 2028/06/02 09:48:46 UTC

J2000 position of star is 17:15:53.1 -08:42:33
Equinox of date position of star is 17:17:13.3 -08:44:05
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 73% illuminated.
Apparent brightness V=23.9

[RECON map]
Object is 44.3 AU from the Sun and 43.3 AU from the Earth.
Apparent velocity is 25.2 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 821 seconds.
The 1-sigma cross-track error in the shadow position is 3907 km.
The sky-plane scale is 31427.2 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 7.9 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 500883, (2028/06/02 09:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.3 -26:29:33  0.9 20.87  59
35Eta Oph      17:12:00.6 -15:45:29  2.6  7.14  69
PPM 232685     17:11:22.3 -10:33:28  5.6  2.35  69
PPM 200463     17:15:40.8 -08:26:03  8.5  0.53  70
PPM 200495     17:17:22.7 -08:41:51  9.1  0.04  71
500883         17:17:26.2 -08:44:20 16.5        71
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 1.1 sigma about the mid-time.
The median site spacing is 22.0 km RECON observability=0.8 and success probability=1.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:47:55 -7.3 NT Down 22.8 216.3 Low 09:32:55 - 10:02:55 11006
Kamloops 09:48:27 -13.2 AT Down 28.3 201.6 Low 09:33:27 - 10:03:27 10865
Kelowna 09:48:22 -13.7 AT Down 28.9 202.8 Low 09:33:22 - 10:03:22 10828
Peachland 09:48:24 -13.9 AT Down 29.0 202.5 Low 09:33:24 - 10:03:24 10820
Summerland 09:48:24 -14.0 AT Down 29.2 202.6 Low 09:33:24 - 10:03:24 10812
Penticton 09:48:24 -14.0 AT Down 29.2 202.7 Low 09:33:24 - 10:03:24 10810
Oliver 09:48:22 -14.3 AT Down 29.5 202.8 Low 09:33:22 - 10:03:22 10790
Anarchist Mountain Observatory 09:48:22 -14.4 AT Down 29.6 203.1 Low 09:33:22 - 10:03:22 10783
Okanogan 09:48:22 -15.0 AT Down 30.3 203.0 Up 09:33:22 - 10:03:22 10745
Brewster 09:48:22 -15.3 AT Down 30.6 202.8 Up 09:33:22 - 10:03:22 10728
Victoria 09:48:32 -16.0 AT Down 31.0 198.7 Up 09:33:32 - 10:03:32 10726
Manson/Chelan 09:48:23 -15.6 AT Down 30.9 202.4 Up 09:33:23 - 10:03:23 10714
Wenatchee 09:48:22 -16.1 AT Down 31.4 202.4 Up 09:33:22 - 10:03:22 10685
Ellensburg 09:48:22 -16.6 AT Down 31.8 202.2 Up 09:33:22 - 10:03:22 10659
Yakima 09:48:21 -16.9 AT Down 32.2 202.3 Up 09:33:21 - 10:03:21 10635
Toppenish/White Swan 09:48:21 -17.1 AT Down 32.3 202.5 Up 09:33:21 - 10:03:21 10624
PNWRO 09:48:17 -16.9 AT Down 32.3 204.3 Up 09:33:17 - 10:03:17 10612
The Dalles 09:48:22 -18.0 Dark Down 33.3 201.8 Up 09:33:22 - 10:03:22 10571
Maupin 09:48:21 -18.4 Dark Down 33.6 202.0 Up 09:33:21 - 10:03:21 10546
Sisters 09:48:21 -19.3 Dark Down 34.6 201.7 Up 09:33:21 - 10:03:21 10488
Bend 09:48:21 -19.4 Dark Down 34.7 202.1 Up 09:33:21 - 10:03:21 10475
Oregon Observatory 09:48:21 -19.6 Dark Down 34.9 201.9 Up 09:33:21 - 10:03:21 10463
Chiloquin 09:48:20 -21.0 Dark Down 36.3 201.8 Up 09:33:20 - 10:03:20 10374
Klamath Falls 09:48:20 -21.2 Dark Down 36.5 202.0 Up 09:33:20 - 10:03:20 10352
Cedarville 09:48:14 -21.3 Dark Down 36.7 204.1 Up 09:33:14 - 10:03:14 10319
Dunrhomin 09:47:28 -16.2 AT Down 31.8 220.7 Up 09:32:28 - 10:02:28 10318
Nikitin 09:47:27 -16.3 AT Down 31.9 220.8 Up 09:32:27 - 10:02:27 10305
CU-SBO 09:47:28 -16.4 AT Down 32.0 220.7 Up 09:32:28 - 10:02:28 10301
Fall River/Burney 09:48:17 -22.2 Dark Down 37.5 202.8 Up 09:33:17 - 10:03:17 10276
Gimple 09:48:14 -22.8 Dark Down 38.2 203.7 Up 09:33:14 - 10:03:14 10218
Greenville 09:48:15 -22.8 Dark Down 38.2 203.6 Up 09:33:15 - 10:03:15 10217
Quincy 09:48:14 -23.0 Dark Down 38.4 203.6 Up 09:33:14 - 10:03:14 10203
Portola 09:48:12 -23.0 Dark Down 38.4 204.2 Up 09:33:12 - 10:03:12 10199
Reno 09:48:11 -23.0 Dark Down 38.4 205.1 Up 09:33:11 - 10:03:11 10185
Carson City 09:48:10 -23.3 Dark Down 38.7 205.2 Up 09:33:10 - 10:03:10 10160
Yerington 09:48:07 -23.2 Dark Down 38.7 206.1 Up 09:33:07 - 10:03:07 10151
Gardnerville 09:48:09 -23.5 Dark Down 38.9 205.4 Up 09:33:09 - 10:03:09 10143
Hawthorne 09:48:05 -23.4 Dark Down 38.9 206.8 Up 09:33:05 - 10:03:05 10122
Lee Vining 09:48:06 -24.1 Dark Down 39.6 206.5 Up 09:33:06 - 10:03:06 10078
Bishop 09:48:02 -24.4 Dark Down 39.9 207.5 Up 09:33:02 - 10:03:02 10040
Beatty 09:47:56 -24.1 Dark Down 39.7 209.6 Up 09:32:56 - 10:02:56 10018
Patrick 09:47:46 -24.1 Dark Down 39.7 213.6 Up 09:32:46 - 10:02:46 9926
Laughlin/Bullhead City 09:47:47 -24.7 Dark Down 40.3 212.9 Up 09:32:47 - 10:02:47 9903
Lake Havasu City 09:47:45 -25.1 Dark Down 40.7 213.5 Up 09:32:45 - 10:02:45 9853
George/Scottsdale 09:47:36 -24.6 Dark Down 40.2 216.7 Up 09:32:36 - 10:02:36 9809
Wildwood 09:47:59 -27.3 Dark Down 42.9 208.6 Up 09:32:59 - 10:02:59 9791
Idyllwild 09:47:52 -26.8 Dark Down 42.4 211.1 Up 09:32:52 - 10:02:52 9778
Calipatria 09:47:48 -26.8 Dark Down 42.4 212.8 Up 09:32:48 - 10:02:48 9738
Yuma 09:47:44 -26.7 Dark Down 42.4 214.0 Up 09:32:44 - 10:02:44 9710

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 500883, (2028/06/02 09:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.87  59
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.14  69
PPM 232685     17:09:48.0 -10:31:26  5.6  2.35  69
PPM 200463     17:14:07.9 -08:24:12  8.5  0.53  70
PPM 200495     17:15:49.6 -08:40:03  9.1  0.04  71
500883         17:15:53.1 -08:42:33 16.5        71
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:29:35 UT

Marc W. Buie, Southwest Research Institute

RECON