RECON: TNO occultation with 03UY291

Event between 03UY291 and star GA1160:01713524 with event index number of 2716105

Geocentric closest approach at 2029/02/14 08:37:59 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 781 seconds.
The 1-sigma cross-track error in the shadow position is 5095 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 22.4 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 08:31:46 -48.1 Dark Down 27.6 279.4 Low 08:16:46 - 08:46:46 10995
Kamloops 08:32:13 -52.0 Dark Down 36.4 269.4 Up 08:17:13 - 08:47:13 10496
Kelowna 08:32:05 -52.8 Dark Down 35.9 270.7 Up 08:17:05 - 08:47:05 10444
Peachland 08:32:04 -52.9 Dark Down 36.0 270.5 Up 08:17:04 - 08:47:04 10427
Summerland 08:32:03 -53.1 Dark Down 36.0 270.7 Up 08:17:03 - 08:47:03 10416
Penticton 08:32:01 -53.1 Dark Down 35.9 270.9 Up 08:17:01 - 08:47:01 10412
Oliver 08:32:00 -53.5 Dark Down 35.9 271.1 Up 08:17:00 - 08:47:00 10380
Anarchist Mountain Observatory 08:31:58 -53.6 Dark Down 35.8 271.4 Up 08:16:58 - 08:46:58 10369
Okanogan 08:31:55 -54.3 Dark Down 35.9 271.7 Up 08:16:55 - 08:46:55 10304
Brewster 08:31:54 -54.6 Dark Down 36.1 271.7 Up 08:16:54 - 08:46:54 10274
Manson/Chelan 08:31:54 -54.8 Dark Down 36.3 271.6 Up 08:16:54 - 08:46:54 10245
Victoria 08:32:10 -54.3 Dark Down 38.4 268.7 Up 08:17:10 - 08:47:10 10225
Wenatchee 08:31:53 -55.3 Dark Down 36.4 271.8 Up 08:16:53 - 08:46:53 10197
Ellensburg 08:31:52 -55.7 Dark Down 36.5 272.0 Up 08:16:52 - 08:46:52 10152
Yakima 08:31:52 -56.1 Dark Down 36.5 272.2 Up 08:16:52 - 08:46:52 10114
PNWRO 08:31:41 -56.5 Dark Down 35.4 273.8 Up 08:16:41 - 08:46:41 10102
Toppenish/White Swan 08:31:47 -56.3 Dark Down 36.4 272.5 Up 08:16:47 - 08:46:47 10098
The Dalles 08:31:47 -57.2 Dark Down 36.9 272.5 Up 08:16:47 - 08:46:47 10003
Dunrhomin 08:30:38 -58.0 Dark Down 24.7 285.4 Low 08:15:38 - 08:45:38 9993
Nikitin 08:30:38 -58.1 Dark Down 24.7 285.4 Low 08:15:38 - 08:45:38 9975
CU-SBO 08:30:36 -58.2 Dark Down 24.8 285.4 Low 08:15:36 - 08:45:36 9967
Maupin 08:31:45 -57.6 Dark Down 36.9 272.9 Up 08:16:45 - 08:46:45 9966
Sisters 08:31:43 -58.5 Dark Down 37.2 273.2 Up 08:16:43 - 08:46:43 9869
Bend 08:31:43 -58.7 Dark Down 37.0 273.6 Up 08:16:43 - 08:46:43 9853
Oregon Observatory 08:31:40 -58.9 Dark Down 37.1 273.6 Up 08:16:40 - 08:46:40 9833
Chiloquin 08:31:38 -60.2 Dark Down 37.3 274.3 Up 08:16:38 - 08:46:38 9693
Klamath Falls 08:31:33 -60.6 Dark Down 37.2 274.6 Up 08:16:33 - 08:46:33 9662
Cedarville 08:31:25 -61.1 Dark Down 36.0 276.1 Up 08:16:25 - 08:46:25 9638
Fall River/Burney 08:31:25 -61.7 Dark Down 36.8 275.7 Up 08:16:25 - 08:46:25 9557
Gimple 08:31:22 -62.6 Dark Down 36.3 276.7 Up 08:16:22 - 08:46:22 9482
Greenville 08:31:22 -62.6 Dark Down 36.4 276.7 Up 08:16:22 - 08:46:22 9480
Portola 08:31:18 -62.9 Dark Down 36.0 277.2 Up 08:16:18 - 08:46:18 9461
Quincy 08:31:21 -62.8 Dark Down 36.4 276.8 Up 08:16:21 - 08:46:21 9460
Reno 08:31:16 -63.0 Dark Down 35.5 277.7 Up 08:16:16 - 08:46:16 9453
Carson City 08:31:13 -63.4 Dark Down 35.4 278.0 Up 08:16:13 - 08:46:13 9419
Yerington 08:31:10 -63.5 Dark Down 34.9 278.5 Up 08:16:10 - 08:46:10 9418
Gardnerville 08:31:12 -63.6 Dark Down 35.4 278.2 Up 08:16:12 - 08:46:12 9396
Hawthorne 08:31:06 -63.9 Dark Down 34.5 279.1 Up 08:16:06 - 08:46:06 9388
Lee Vining 08:31:06 -64.5 Dark Down 34.7 279.2 Up 08:16:06 - 08:46:06 9317
Beatty 08:30:54 -65.1 Dark Down 32.8 281.1 Up 08:15:54 - 08:45:54 9285
Bishop 08:31:01 -65.0 Dark Down 34.1 280.0 Up 08:16:01 - 08:46:01 9280
Patrick 08:30:40 -65.6 Dark Down 30.2 283.3 Up 08:15:40 - 08:45:40 9232
Laughlin/Bullhead City 08:30:40 -66.1 Dark Down 30.7 283.2 Up 08:15:40 - 08:45:40 9184
George/Scottsdale 08:30:29 -66.4 Dark Down 28.2 285.2 Low 08:15:29 - 08:45:29 9134
Lake Havasu City 08:30:37 -66.6 Dark Down 30.4 283.7 Up 08:15:37 - 08:45:37 9125
Idyllwild 08:30:43 -68.1 Dark Down 32.1 283.0 Up 08:15:43 - 08:45:43 8970
Calipatria 08:30:38 -68.3 Dark Down 31.0 283.9 Up 08:15:38 - 08:45:38 8948
Wildwood 08:30:51 -68.2 Dark Down 33.7 282.0 Up 08:15:51 - 08:45:51 8945
Yuma 08:30:31 -68.4 Dark Down 30.2 284.5 Up 08:15:31 - 08:45:31 8935

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 05:17:08 UT

Marc W. Buie, Southwest Research Institute

RECON