RECON: TNO occultation with 12XW159

Event between 12XW159 and star GA0980:02699176 with event index number of 2672578

Geocentric closest approach at 2029/01/12 06:02:27 UTC

J2000 position of star is 07:08:16.6 +08:26:08
Equinox of date position of star is 07:09:29.8 +08:23:55
Stellar brightness G=13.8, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 151 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 32.9 AU from the Sun and 32.0 AU from the Earth.
The TNO is moving 24.9 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 516 seconds.
The 1-sigma cross-track error in the shadow position is 3018 km.
The sky-plane scale is 23183.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=200.5 km assuming a 5% albedo -- 8.0 sec chord
Diameter=81.8 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 12XW159, (2029/01/12 06:02UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.7 +07:24:36  0.4 18.13 161
Alhena         06:39:23.3 +16:22:19  1.9 10.91 161
PPM 151978     07:09:23.6 +07:25:24  5.8  0.97 150
PPM 151939     07:08:18.5 +08:39:59  8.2  0.47 151
PPM 151998     07:09:53.5 +08:25:05  9.5  0.03 151
12XW159        07:09:51.4 +08:23:15 13.8       150
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 1.7 sigma about the mid-time.
The median site spacing is 28.3 km RECON observability=1.0 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:03:32 -56.8 Dark Down 45.6 165.7 Up 05:48:32 - 06:18:32 7092
Kamloops 06:04:09 -52.0 Dark Down 43.2 145.9 Up 05:49:09 - 06:19:09 6821
Kelowna 06:04:07 -52.9 Dark Down 44.2 146.7 Up 05:49:07 - 06:19:07 6758
Peachland 06:04:08 -52.8 Dark Down 44.2 146.2 Up 05:49:08 - 06:19:08 6746
Summerland 06:04:08 -53.0 Dark Down 44.3 146.3 Up 05:49:08 - 06:19:08 6734
Penticton 06:04:07 -53.1 Dark Down 44.4 146.4 Up 05:49:07 - 06:19:07 6729
Oliver 06:04:07 -53.3 Dark Down 44.7 146.2 Up 05:49:07 - 06:19:07 6698
Anarchist Mountain Observatory 06:04:07 -53.5 Dark Down 44.9 146.3 Up 05:49:07 - 06:19:07 6685
Tonasket 06:04:08 -53.6 Dark Down 45.2 146.1 Up 05:49:08 - 06:19:08 6656
Okanogan 06:04:08 -53.8 Dark Down 45.4 145.7 Up 05:49:08 - 06:19:08 6625
Victoria 06:04:18 -51.6 Dark Down 43.8 140.9 Up 05:49:18 - 06:19:18 6604
Brewster 06:04:09 -53.8 Dark Down 45.5 145.3 Up 05:49:09 - 06:19:09 6599
Manson/Chelan 06:04:10 -53.7 Dark Down 45.6 144.7 Up 05:49:10 - 06:19:10 6576
Wenatchee 06:04:11 -53.9 Dark Down 45.9 144.2 Up 05:49:11 - 06:19:11 6532
Ellensburg 06:04:12 -54.0 Dark Down 46.1 143.6 Up 05:49:12 - 06:19:12 6492
Yakima 06:04:11 -54.2 Dark Down 46.5 143.4 Up 05:49:11 - 06:19:11 6455
Toppenish/White Swan 06:04:12 -54.5 Dark Down 46.7 143.4 Up 05:49:12 - 06:19:12 6437
PNWRO 06:04:08 -55.5 Dark Down 47.6 145.2 Up 05:49:08 - 06:19:08 6418
Goldendale 06:04:13 -54.5 Dark Down 47.0 142.5 Up 05:49:13 - 06:19:13 6382
The Dalles 06:04:14 -54.4 Dark Down 47.0 141.9 Up 05:49:14 - 06:19:14 6358
Maupin 06:04:14 -54.7 Dark Down 47.4 141.8 Up 05:49:14 - 06:19:14 6320
Sisters 06:04:16 -54.9 Dark Down 47.8 140.5 Up 05:49:16 - 06:19:16 6233
Bend 06:04:15 -55.1 Dark Down 48.1 140.7 Up 05:49:15 - 06:19:15 6213
Oregon Observatory 06:04:16 -55.1 Dark Down 48.2 140.4 Up 05:49:16 - 06:19:16 6196
North Lake 06:04:15 -55.8 Dark Down 49.0 140.7 Up 05:49:15 - 06:19:15 6141
Chiloquin 06:04:18 -55.5 Dark Down 49.0 138.9 Up 05:49:18 - 06:19:18 6066
Dunrhomin 06:03:26 -66.7 Dark Down 57.1 162.8 Up 05:48:26 - 06:18:26 6055
Lakeview 06:04:14 -56.6 Dark Down 50.0 140.6 Up 05:49:14 - 06:19:14 6045
Klamath Falls 06:04:18 -55.7 Dark Down 49.3 138.8 Up 05:49:18 - 06:19:18 6034
CU-SBO 06:03:27 -66.9 Dark Down 57.3 162.5 Up 05:48:27 - 06:18:27 6030
Cedarville 06:04:14 -57.1 Dark Down 50.6 140.3 Up 05:49:14 - 06:19:14 5984
Fall River/Burney 06:04:17 -56.5 Dark Down 50.4 138.3 Up 05:49:17 - 06:19:17 5924
Susanville 06:04:15 -57.2 Dark Down 51.2 138.8 Up 05:49:15 - 06:19:15 5871
Gimple 06:04:17 -57.2 Dark Down 51.3 138.3 Up 05:49:17 - 06:19:17 5842
Greenville 06:04:17 -57.2 Dark Down 51.3 138.2 Up 05:49:17 - 06:19:17 5841
Quincy 06:04:17 -57.3 Dark Down 51.4 138.0 Up 05:49:17 - 06:19:17 5821
Portola 06:04:15 -57.6 Dark Down 51.8 138.6 Up 05:49:15 - 06:19:15 5814
Reno 06:04:14 -58.2 Dark Down 52.3 139.2 Up 05:49:14 - 06:19:14 5795
Carson City 06:04:13 -58.4 Dark Down 52.6 138.9 Up 05:49:13 - 06:19:13 5760
Yerington 06:04:11 -58.9 Dark Down 53.1 139.7 Up 05:49:11 - 06:19:11 5748
Gardnerville 06:04:14 -58.5 Dark Down 52.8 138.8 Up 05:49:14 - 06:19:14 5737
Hawthorne 06:04:09 -59.5 Dark Down 53.7 140.0 Up 05:49:09 - 06:19:09 5708
Tonopah 06:04:05 -60.6 Dark Down 54.7 141.6 Up 05:49:05 - 06:19:05 5679
Lee Vining 06:04:12 -59.3 Dark Down 53.9 138.8 Up 05:49:12 - 06:19:12 5647
Bishop 06:04:09 -60.1 Dark Down 54.7 139.3 Up 05:49:09 - 06:19:09 5596
Beatty 06:04:04 -61.5 Dark Down 55.9 141.3 Up 05:49:04 - 06:19:04 5569
Indian Springs 06:04:01 -62.4 Dark Down 56.6 142.6 Up 05:49:01 - 06:19:01 5550
Henderson 06:03:58 -63.1 Dark Down 57.4 143.2 Up 05:48:58 - 06:18:58 5505
Patrick 06:03:54 -64.2 Dark Down 58.4 144.4 Up 05:48:54 - 06:18:54 5457
Kingman/Dolan Springs 06:03:55 -64.1 Dark Down 58.5 143.9 Up 05:48:55 - 06:18:55 5433
Laughlin/Bullhead City 06:03:57 -63.8 Dark Down 58.3 143.0 Up 05:48:57 - 06:18:57 5423
Mohave Valley 06:03:57 -63.9 Dark Down 58.5 142.8 Up 05:48:57 - 06:18:57 5396
Lake Havasu City 06:03:56 -64.2 Dark Down 59.0 142.8 Up 05:48:56 - 06:18:56 5359
Parker 06:03:56 -64.4 Dark Down 59.2 142.5 Up 05:48:56 - 06:18:56 5323
George/Scottsdale 06:03:48 -66.4 Dark Down 60.8 146.2 Up 05:48:48 - 06:18:48 5314
Wildwood 06:04:11 -61.1 Dark Down 57.0 135.8 Up 05:49:11 - 06:19:11 5263
Idyllwild 06:04:04 -62.7 Dark Down 58.3 138.2 Up 05:49:04 - 06:19:04 5250
Calipatria 06:04:01 -63.8 Dark Down 59.4 139.4 Up 05:49:01 - 06:19:01 5203
Yuma 06:03:57 -64.7 Dark Down 60.2 140.4 Up 05:48:57 - 06:18:57 5171

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 12XW159, (2029/01/12 06:02UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.13 161
Alhena         06:37:42.8 +16:23:56  1.9 10.91 161
PPM 151978     07:07:49.5 +07:28:15  5.8  0.97 150
PPM 151939     07:06:43.5 +08:42:48  8.2  0.47 151
PPM 151998     07:08:18.7 +08:27:58  9.5  0.03 151
12XW159        07:08:16.6 +08:26:08 13.8       151
Positions are for J2000

Event circumstances last updated at 2022/06/03 23:03:46 UT

Marc W. Buie, Southwest Research Institute

RECON