RECON: TNO occultation with 535029

Event between (535029) 14WG510 and star GA0940:00919649 with event index number of 2261436

Geocentric closest approach at 2027/01/03 10:54:22 UTC

J2000 position of star is 05:47:20.4 +05:43:53
Equinox of date position of star is 05:48:33.8 +05:44:17
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 39.1 AU from the Sun and 38.2 AU from the Earth.
The TNO is moving 24.6 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 215 seconds.
The 1-sigma cross-track error in the shadow position is 1534 km.
The sky-plane scale is 27725.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.2 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535029, (2027/01/03 10:57UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:38.1 +07:24:35  0.4  2.57 140
Bellatrix      05:26:34.9 +06:22:19  1.6  5.56 146
52 Ori         05:49:27.3 +06:27:41  5.5  0.74 141
PPM 149408     05:46:52.5 +06:18:25  7.0  0.74 142
PPM 149471     05:49:07.6 +05:42:12  9.7  0.09 141
535029         05:48:47.1 +05:44:21 16.9       141
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 28.2 km RECON observability=0.9 and success probability=6.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:52:07 -38.5 Dark Down 14.9 260.1 Really Low 10:37:07 - 11:07:07 4463
Kamloops 10:52:19 -47.4 Dark Down 23.9 248.4 Low 10:37:19 - 11:07:19 4243
Kelowna 10:52:15 -47.3 Dark Down 23.6 249.5 Low 10:37:15 - 11:07:15 4196
Peachland 10:52:15 -47.5 Dark Down 23.9 249.3 Low 10:37:15 - 11:07:15 4186
Summerland 10:52:14 -47.5 Dark Down 23.9 249.4 Low 10:37:14 - 11:07:14 4176
Penticton 10:52:14 -47.5 Dark Down 23.8 249.6 Low 10:37:14 - 11:07:14 4172
Oliver 10:52:13 -47.6 Dark Down 23.9 249.7 Low 10:37:13 - 11:07:13 4148
Anarchist Mountain Observatory 10:52:12 -47.5 Dark Down 23.9 249.9 Low 10:37:12 - 11:07:12 4138
Okanogan 10:52:10 -47.9 Dark Down 24.2 250.0 Low 10:37:10 - 11:07:10 4090
Brewster 10:52:10 -48.2 Dark Down 24.5 250.0 Low 10:37:10 - 11:07:10 4069
Victoria 10:52:17 -50.2 Dark Down 26.5 246.7 Low 10:37:17 - 11:07:17 4064
Manson/Chelan 10:52:09 -48.5 Dark Down 24.8 249.7 Low 10:37:09 - 11:07:09 4050
Wenatchee 10:52:08 -48.8 Dark Down 25.0 249.8 Low 10:37:08 - 11:07:08 4014
Ellensburg 10:52:08 -49.0 Dark Down 25.3 249.8 Low 10:37:08 - 11:07:08 3982
Yakima 10:52:07 -49.2 Dark Down 25.5 250.0 Low 10:37:07 - 11:07:07 3952
Toppenish/White Swan 10:52:06 -49.2 Dark Down 25.4 250.2 Low 10:37:06 - 11:07:06 3937
PNWRO 10:52:02 -48.3 Dark Down 24.6 251.6 Low 10:37:02 - 11:07:02 3925
The Dalles 10:52:04 -50.0 Dark Down 26.2 249.9 Low 10:37:04 - 11:07:04 3871
Maupin 10:52:03 -50.1 Dark Down 26.3 250.2 Low 10:37:03 - 11:07:03 3840
Sisters 10:52:01 -50.7 Dark Down 26.9 250.2 Low 10:37:01 - 11:07:01 3768
Bend 10:52:00 -50.6 Dark Down 26.9 250.5 Low 10:37:00 - 11:07:00 3753
Oregon Observatory 10:51:59 -50.7 Dark Down 27.0 250.5 Low 10:36:59 - 11:06:59 3738
Chiloquin 10:51:57 -51.5 Dark Down 27.7 250.8 Low 10:36:57 - 11:06:57 3630
Dunrhomin 10:51:26 -39.6 Dark Down 16.1 263.8 Really Low 10:36:26 - 11:06:26 3623
Klamath Falls 10:51:55 -51.5 Dark Down 27.8 251.0 Low 10:36:55 - 11:06:55 3603
CU-SBO 10:51:26 -39.7 Dark Down 16.2 263.8 Really Low 10:36:26 - 11:06:26 3602
Cedarville 10:51:51 -50.6 Dark Down 26.9 252.6 Low 10:36:51 - 11:06:51 3565
Fall River/Burney 10:51:51 -51.6 Dark Down 27.9 251.9 Low 10:36:51 - 11:06:51 3512
Gimple 10:51:48 -51.4 Dark Down 27.8 252.7 Low 10:36:48 - 11:06:48 3443
Greenville 10:51:48 -51.5 Dark Down 27.9 252.7 Low 10:36:48 - 11:06:48 3443
Quincy 10:51:48 -51.5 Dark Down 27.9 252.8 Low 10:36:48 - 11:06:48 3426
Portola 10:51:47 -51.2 Dark Down 27.6 253.2 Low 10:36:47 - 11:06:47 3421
Reno 10:51:45 -50.8 Dark Down 27.2 253.8 Low 10:36:45 - 11:06:45 3406
Carson City 10:51:44 -50.9 Dark Down 27.3 254.0 Low 10:36:44 - 11:06:44 3377
Yerington 10:51:42 -50.4 Dark Down 26.9 254.5 Low 10:36:42 - 11:06:42 3368
Gardnerville 10:51:43 -50.9 Dark Down 27.3 254.1 Low 10:36:43 - 11:06:43 3357
Hawthorne 10:51:40 -50.1 Dark Down 26.6 255.2 Low 10:36:40 - 11:06:40 3334
Lee Vining 10:51:39 -50.6 Dark Down 27.1 255.1 Low 10:36:39 - 11:06:39 3282
Bishop 10:51:36 -50.1 Dark Down 26.7 255.9 Low 10:36:36 - 11:06:36 3238
Beatty 10:51:32 -48.9 Dark Down 25.6 257.2 Low 10:36:32 - 11:06:32 3217
Patrick 10:51:23 -46.8 Dark Down 23.6 259.8 Low 10:36:23 - 11:06:23 3122
Laughlin/Bullhead City 10:51:24 -47.3 Dark Down 24.2 259.4 Low 10:36:24 - 11:06:24 3092
Lake Havasu City 10:51:22 -47.2 Dark Down 24.2 259.9 Low 10:36:22 - 11:06:22 3036
George/Scottsdale 10:51:16 -45.2 Dark Down 22.3 261.7 Low 10:36:16 - 11:06:16 2996
Wildwood 10:51:28 -50.7 Dark Down 27.7 257.4 Low 10:36:28 - 11:06:28 2949
Idyllwild 10:51:24 -49.2 Dark Down 26.2 258.7 Low 10:36:24 - 11:06:24 2940
Calipatria 10:51:20 -48.2 Dark Down 25.4 259.8 Low 10:36:20 - 11:06:20 2899
Yuma 10:51:18 -47.5 Dark Down 24.7 260.5 Low 10:36:18 - 11:06:18 2871

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 535029, (2027/01/03 10:57UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  2.57 140
Bellatrix      05:25:07.8 +06:20:58  1.6  5.56 146
52 Ori         05:48:00.2 +06:27:15  5.5  0.74 141
PPM 149408     05:45:25.5 +06:17:52  7.0  0.74 142
PPM 149471     05:47:41.0 +05:41:45  9.7  0.09 141
535029         05:47:20.4 +05:43:53 16.9       141
Positions are for J2000

Event circumstances last updated at 2022/11/17 02:38:07 UT

Marc W. Buie, Southwest Research Institute

RECON