RECON: TNO occultation with 03UY291

Event between 03UY291 and star GA1160:01630273 with event index number of 2687484

Geocentric closest approach at 2029/02/14 08:37:54 UTC

J2000 position of star is 05:50:58.6 +27:00:21
Equinox of date position of star is 05:52:25.0 +27:00:38
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 1% illuminated.
Apparent brightness V=23.9

[RECON map]
Object is 45.9 AU from the Sun and 45.3 AU from the Earth.
Apparent velocity is 12.1 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 782 seconds.
The 1-sigma cross-track error in the shadow position is 5089 km.
The sky-plane scale is 32891.1 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=217.8 km assuming a 5% albedo -- 18.0 sec chord
Diameter=88.9 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UY291, (2029/02/14 08:38UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:45.0 +07:24:36  0.4 19.62 113
Alnath         05:28:08.1 +28:37:46  1.6  5.69 106
139 Tau        05:59:48.1 +25:57:17  4.7  1.89 113
PPM 094958     05:52:29.5 +27:30:38  7.5  0.50 111
PPM 094951     05:52:02.3 +26:58:04  9.2  0.18 111
03UY291        05:52:48.0 +27:00:42 15.4       112
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 1.2 sigma about the mid-time.
The median site spacing is 22.2 km RECON observability=1.0 and success probability=4.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:31:42 -48.1 Dark Down 27.6 279.3 Low 08:16:42 - 08:46:42 10972
Kamloops 08:32:08 -52.1 Dark Down 36.4 269.4 Up 08:17:08 - 08:47:08 10473
Kelowna 08:32:00 -52.8 Dark Down 35.9 270.7 Up 08:17:00 - 08:47:00 10421
Peachland 08:32:01 -52.9 Dark Down 36.1 270.5 Up 08:17:01 - 08:47:01 10403
Summerland 08:31:58 -53.1 Dark Down 36.0 270.7 Up 08:16:58 - 08:46:58 10392
Penticton 08:31:58 -53.1 Dark Down 35.9 270.8 Up 08:16:58 - 08:46:58 10389
Oliver 08:31:57 -53.5 Dark Down 35.9 271.1 Up 08:16:57 - 08:46:57 10356
Anarchist Mountain Observatory 08:31:54 -53.6 Dark Down 35.8 271.4 Up 08:16:54 - 08:46:54 10346
Okanogan 08:31:52 -54.3 Dark Down 35.9 271.6 Up 08:16:52 - 08:46:52 10281
Brewster 08:31:52 -54.6 Dark Down 36.1 271.7 Up 08:16:52 - 08:46:52 10250
Manson/Chelan 08:31:51 -54.8 Dark Down 36.3 271.6 Up 08:16:51 - 08:46:51 10222
Victoria 08:32:04 -54.3 Dark Down 38.4 268.7 Up 08:17:04 - 08:47:04 10201
Wenatchee 08:31:49 -55.3 Dark Down 36.4 271.8 Up 08:16:49 - 08:46:49 10173
Ellensburg 08:31:49 -55.7 Dark Down 36.5 271.9 Up 08:16:49 - 08:46:49 10129
Yakima 08:31:47 -56.1 Dark Down 36.5 272.2 Up 08:16:47 - 08:46:47 10090
PNWRO 08:31:38 -56.5 Dark Down 35.4 273.8 Up 08:16:38 - 08:46:38 10079
Toppenish/White Swan 08:31:45 -56.3 Dark Down 36.4 272.5 Up 08:16:45 - 08:46:45 10074
The Dalles 08:31:43 -57.2 Dark Down 37.0 272.5 Up 08:16:43 - 08:46:43 9980
Dunrhomin 08:30:35 -58.0 Dark Down 24.7 285.4 Low 08:15:35 - 08:45:35 9969
Nikitin 08:30:34 -58.1 Dark Down 24.7 285.4 Low 08:15:34 - 08:45:34 9952
CU-SBO 08:30:35 -58.2 Dark Down 24.8 285.4 Low 08:15:35 - 08:45:35 9943
Maupin 08:31:42 -57.6 Dark Down 36.9 272.9 Up 08:16:42 - 08:46:42 9942
Sisters 08:31:39 -58.5 Dark Down 37.2 273.2 Up 08:16:39 - 08:46:39 9845
Bend 08:31:37 -58.7 Dark Down 37.0 273.6 Up 08:16:37 - 08:46:37 9829
Oregon Observatory 08:31:37 -58.9 Dark Down 37.1 273.6 Up 08:16:37 - 08:46:37 9809
Chiloquin 08:31:33 -60.2 Dark Down 37.3 274.3 Up 08:16:33 - 08:46:33 9670
Klamath Falls 08:31:29 -60.6 Dark Down 37.2 274.6 Up 08:16:29 - 08:46:29 9638
Cedarville 08:31:20 -61.1 Dark Down 36.0 276.1 Up 08:16:20 - 08:46:20 9615
Fall River/Burney 08:31:24 -61.7 Dark Down 36.8 275.7 Up 08:16:24 - 08:46:24 9533
Gimple 08:31:17 -62.6 Dark Down 36.4 276.7 Up 08:16:17 - 08:46:17 9458
Greenville 08:31:18 -62.6 Dark Down 36.4 276.7 Up 08:16:18 - 08:46:18 9456
Portola 08:31:17 -62.9 Dark Down 36.0 277.2 Up 08:16:17 - 08:46:17 9437
Quincy 08:31:18 -62.8 Dark Down 36.4 276.8 Up 08:16:18 - 08:46:18 9436
Reno 08:31:11 -63.0 Dark Down 35.5 277.7 Up 08:16:11 - 08:46:11 9430
Carson City 08:31:10 -63.4 Dark Down 35.4 278.0 Up 08:16:10 - 08:46:10 9395
Yerington 08:31:06 -63.5 Dark Down 34.9 278.5 Up 08:16:06 - 08:46:06 9394
Gardnerville 08:31:11 -63.6 Dark Down 35.4 278.2 Up 08:16:11 - 08:46:11 9372
Hawthorne 08:31:04 -63.9 Dark Down 34.5 279.1 Up 08:16:04 - 08:46:04 9364
Lee Vining 08:31:04 -64.5 Dark Down 34.8 279.2 Up 08:16:04 - 08:46:04 9294
Beatty 08:30:51 -65.1 Dark Down 32.8 281.1 Up 08:15:51 - 08:45:51 9261
Bishop 08:30:59 -65.0 Dark Down 34.1 280.0 Up 08:15:59 - 08:45:59 9256
Patrick 08:30:35 -65.6 Dark Down 30.2 283.3 Up 08:15:35 - 08:45:35 9208
Laughlin/Bullhead City 08:30:37 -66.1 Dark Down 30.7 283.1 Up 08:15:37 - 08:45:37 9160
George/Scottsdale 08:30:24 -66.4 Dark Down 28.2 285.2 Low 08:15:24 - 08:45:24 9110
Lake Havasu City 08:30:34 -66.6 Dark Down 30.4 283.6 Up 08:15:34 - 08:45:34 9102
Idyllwild 08:30:40 -68.1 Dark Down 32.1 283.0 Up 08:15:40 - 08:45:40 8946
Calipatria 08:30:32 -68.3 Dark Down 31.0 283.9 Up 08:15:32 - 08:45:32 8924
Wildwood 08:30:45 -68.2 Dark Down 33.7 282.0 Up 08:15:45 - 08:45:45 8921
Yuma 08:30:27 -68.4 Dark Down 30.2 284.5 Up 08:15:27 - 08:45:27 8911

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 03UY291, (2029/02/14 08:38UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 19.62 113
Alnath         05:26:17.6 +28:36:23  1.6  5.69 106
139 Tau        05:57:59.6 +25:57:14  4.7  1.89 113
PPM 094958     05:50:39.7 +27:30:17  7.5  0.50 111
PPM 094951     05:50:13.0 +26:57:41  9.2  0.18 111
03UY291        05:50:58.6 +27:00:21 15.4       111
Positions are for J2000

Event circumstances last updated at 2022/12/26 05:14:36 UT

Marc W. Buie, Southwest Research Institute

RECON