RECON: TNO occultation with 03UZ291

Event between 03UZ291 and star GA1080:01086611 with event index number of 1819807

Geocentric closest approach at 2028/01/27 03:55:11 UTC

J2000 position of star is 05:31:14.0 +19:54:30
Equinox of date position of star is 05:32:32.5 +19:55:24
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 45.2 AU from the Sun and 44.5 AU from the Earth.
The TNO is moving 17.9 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 429 seconds.
The 1-sigma cross-track error in the shadow position is 2382 km.
The sky-plane scale is 32275.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=230.2 km assuming a 5% albedo -- 12.9 sec chord
Diameter=94.0 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UZ291, (2028/01/27 03:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:32.1 +16:33:49  0.8 13.56 117
Alnath         05:28:04.1 +28:37:43  1.6  8.77 130
PPM 094484     05:35:19.1 +20:29:29  6.0  0.80 131
PPM 121060     05:33:25.8 +19:34:11  8.5  0.38 131
PPM 121038     05:32:35.8 +19:48:25  9.4  0.14 131
03UZ291        05:32:53.8 +19:55:38 15.7       131
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 2.1 sigma about the mid-time.
The median site spacing is 31.3 km RECON observability=1.0 and success probability=0.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 03:55:28 -38.6 Dark Down 57.7 173.1 Up 03:40:28 - 04:10:28 10828
Kamloops 03:56:24 -30.4 Dark Down 56.1 148.4 Up 03:41:24 - 04:11:24 10759
Kelowna 03:56:23 -31.1 Dark Down 57.1 149.2 Up 03:41:23 - 04:11:23 10676
Peachland 03:56:23 -30.9 Dark Down 57.1 148.7 Up 03:41:23 - 04:11:23 10667
Summerland 03:56:23 -31.0 Dark Down 57.2 148.7 Up 03:41:23 - 04:11:23 10653
Penticton 03:56:23 -31.1 Dark Down 57.3 148.8 Up 03:41:23 - 04:11:23 10645
Oliver 03:56:23 -31.1 Dark Down 57.6 148.5 Up 03:41:23 - 04:11:23 10612
Anarchist Mountain Observatory 03:56:22 -31.3 Dark Down 57.8 148.7 Up 03:41:22 - 04:11:22 10594
Victoria 03:56:39 -28.7 Dark Down 56.7 141.9 Up 03:41:39 - 04:11:39 10580
Tonasket 03:56:23 -31.3 Dark Down 58.1 148.3 Up 03:41:23 - 04:11:23 10565
Okanogan 03:56:25 -31.2 Dark Down 58.3 147.8 Up 03:41:25 - 04:11:25 10533
Brewster 03:56:26 -31.1 Dark Down 58.5 147.2 Up 03:41:26 - 04:11:26 10509
Manson/Chelan 03:56:28 -30.9 Dark Down 58.5 146.5 Up 03:41:28 - 04:11:28 10491
Wenatchee 03:56:29 -30.8 Dark Down 58.8 145.8 Up 03:41:29 - 04:11:29 10446
Ellensburg 03:56:31 -30.7 Dark Down 59.1 145.0 Up 03:41:31 - 04:11:31 10408
Yakima 03:56:30 -30.7 Dark Down 59.4 144.6 Up 03:41:30 - 04:11:30 10368
Toppenish/White Swan 03:56:31 -30.9 Dark Down 59.7 144.7 Up 03:41:31 - 04:11:31 10346
PNWRO 03:56:24 -31.9 Dark Down 60.5 146.8 Up 03:41:24 - 04:11:24 10298
Goldendale 03:56:33 -30.6 Dark Down 59.9 143.4 Up 03:41:33 - 04:11:33 10295
The Dalles 03:56:35 -30.4 Dark Down 60.0 142.6 Up 03:41:35 - 04:11:35 10276
Maupin 03:56:35 -30.5 Dark Down 60.3 142.3 Up 03:41:35 - 04:11:35 10233
Sisters 03:56:38 -30.2 Dark Down 60.8 140.5 Up 03:41:38 - 04:11:38 10150
Bend 03:56:37 -30.4 Dark Down 61.1 140.7 Up 03:41:37 - 04:11:37 10124
Oregon Observatory 03:56:39 -30.3 Dark Down 61.2 140.3 Up 03:41:39 - 04:11:39 10108
North Lake 03:56:37 -30.8 Dark Down 61.9 140.4 Up 03:41:37 - 04:11:37 10039
Chiloquin 03:56:41 -30.1 Dark Down 62.0 138.0 Up 03:41:41 - 04:11:41 9979
Klamath Falls 03:56:42 -30.2 Dark Down 62.3 137.7 Up 03:41:42 - 04:11:42 9944
Lakeview 03:56:37 -31.2 Dark Down 63.0 140.1 Up 03:41:37 - 04:11:37 9927
Cedarville 03:56:37 -31.4 Dark Down 63.6 139.6 Up 03:41:37 - 04:11:37 9859
Fall River/Burney 03:56:42 -30.5 Dark Down 63.4 136.8 Up 03:41:42 - 04:11:42 9820
Susanville 03:56:40 -31.1 Dark Down 64.2 137.2 Up 03:41:40 - 04:11:40 9749
Greenville 03:56:41 -30.8 Dark Down 64.2 136.3 Up 03:41:41 - 04:11:41 9723
Gimple 03:56:42 -30.9 Dark Down 64.3 136.5 Up 03:41:42 - 04:11:42 9722
Quincy 03:56:41 -30.8 Dark Down 64.4 136.0 Up 03:41:41 - 04:11:41 9702
Portola 03:56:39 -31.2 Dark Down 64.7 136.7 Up 03:41:39 - 04:11:39 9685
Reno 03:56:37 -31.7 Dark Down 65.3 137.5 Up 03:41:37 - 04:11:37 9652
Dunrhomin 03:55:28 -42.6 Dark Down 69.5 171.6 Up 03:40:28 - 04:10:28 9650
Carson City 03:56:37 -31.7 Dark Down 65.5 137.0 Up 03:41:37 - 04:11:37 9614
Yerington 03:56:35 -32.2 Dark Down 66.0 137.9 Up 03:41:35 - 04:11:35 9589
Gardnerville 03:56:37 -31.8 Dark Down 65.7 136.7 Up 03:41:37 - 04:11:37 9588
Hawthorne 03:56:33 -32.6 Dark Down 66.6 138.2 Up 03:41:33 - 04:11:33 9536
Lee Vining 03:56:35 -32.3 Dark Down 66.8 136.4 Up 03:41:35 - 04:11:35 9481
Tonopah 03:56:26 -33.7 Dark Down 67.7 140.3 Up 03:41:26 - 04:11:26 9476
Bishop 03:56:34 -32.9 Dark Down 67.6 136.8 Up 03:41:34 - 04:11:34 9412
Beatty 03:56:25 -34.1 Dark Down 68.8 139.4 Up 03:41:25 - 04:11:25 9350
Indian Springs 03:56:20 -35.0 Dark Down 69.6 141.2 Up 03:41:20 - 04:11:20 9308
Henderson 03:56:18 -35.6 Dark Down 70.4 141.9 Up 03:41:18 - 04:11:18 9247
Patrick 03:56:12 -36.5 Dark Down 71.4 143.5 Up 03:41:12 - 04:11:12 9173
Laughlin/Bullhead City 03:56:16 -35.9 Dark Down 71.3 141.3 Up 03:41:16 - 04:11:16 9151
Kingman/Dolan Springs 03:56:13 -36.3 Dark Down 71.5 142.6 Up 03:41:13 - 04:11:13 9150
Mohave Valley 03:56:16 -35.9 Dark Down 71.5 140.8 Up 03:41:16 - 04:11:16 9122
Lake Havasu City 03:56:15 -36.2 Dark Down 71.9 140.6 Up 03:41:15 - 04:11:15 9078
Wildwood 03:56:37 -32.7 Dark Down 69.8 130.3 Up 03:41:37 - 04:11:37 9067
Parker 03:56:15 -36.2 Dark Down 72.2 140.0 Up 03:41:15 - 04:11:15 9040
Idyllwild 03:56:28 -34.2 Dark Down 71.1 133.5 Up 03:41:28 - 04:11:28 9014
George/Scottsdale 03:56:04 -38.2 Dark Down 73.7 145.7 Up 03:41:04 - 04:11:04 8980
Calipatria 03:56:23 -35.2 Dark Down 72.3 134.9 Up 03:41:23 - 04:11:23 8939
Yuma 03:56:19 -35.9 Dark Down 73.1 136.1 Up 03:41:19 - 04:11:19 8886

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 03UZ291, (2028/01/27 03:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 13.56 117
Alnath         05:26:17.6 +28:36:23  1.6  8.77 130
PPM 094484     05:33:38.8 +20:28:26  6.0  0.80 131
PPM 121060     05:31:46.2 +19:33:04  8.5  0.38 131
PPM 121038     05:30:56.1 +19:47:16  9.4  0.14 131
03UZ291        05:31:14.0 +19:54:30 15.7       131
Positions are for J2000

Event circumstances last updated at 2022/02/05 00:31:22 UT

Marc W. Buie, Southwest Research Institute

RECON