RECON: TNO occultation with 00YX1

Event between 00YX1 and star GA1140:01950609 with event index number of 2746337

Geocentric closest approach at 2029/04/09 04:47:17 UTC

J2000 position of star is 06:06:12.1 +25:31:25
Equinox of date position of star is 06:07:34.4 +25:31:12
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 123 degrees from the moon. Moon is 19% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 43.5 AU from the Sun and 43.8 AU from the Earth.
The TNO is moving 13.2 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 1643 seconds.
The 1-sigma cross-track error in the shadow position is 5840 km.
The sky-plane scale is 31752.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=214.8 km assuming a 5% albedo -- 16.2 sec chord
Diameter=87.7 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00YX1, (2029/04/09 04:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:45.4 +07:24:36  0.4 18.31 120
Alnath         05:28:08.7 +28:37:46  1.6  9.40 114
139 Tau        05:59:48.7 +25:57:17  4.7  1.90 121
PPM 095354     06:06:54.5 +25:47:48  8.2  0.37 123
PPM 095405     06:08:36.5 +25:32:52  9.9  0.14 123
00YX1          06:08:00.8 +25:31:07 15.3       123
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 0.5 sigma about the mid-time.
The median site spacing is 18.9 km RECON observability=1.0 and success probability=7.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:51:42 -23.8 Dark Down 30.0 273.9 Up 04:36:42 - 05:06:42 -3380
Kamloops 04:51:21 -18.5 Dark Down 39.1 263.3 Up 04:36:21 - 05:06:21 -3905
Kelowna 04:51:28 -19.5 Dark Down 38.6 264.7 Up 04:36:28 - 05:06:28 -3942
Peachland 04:51:28 -19.4 Dark Down 38.8 264.6 Up 04:36:28 - 05:06:28 -3959
Summerland 04:51:29 -19.6 Dark Down 38.8 264.8 Up 04:36:29 - 05:06:29 -3968
Penticton 04:51:30 -19.7 Dark Down 38.7 264.9 Up 04:36:30 - 05:06:30 -3970
Oliver 04:51:33 -19.9 Dark Down 38.7 265.2 Up 04:36:33 - 05:06:33 -3998
Anarchist Mountain Observatory 04:51:33 -20.1 Dark Down 38.6 265.5 Up 04:36:33 - 05:06:33 -4005
Tonasket 04:51:36 -20.3 Dark Down 38.7 265.7 Up 04:36:36 - 05:06:36 -4032
Okanogan 04:51:37 -20.4 Dark Down 38.8 265.9 Up 04:36:37 - 05:06:37 -4063
Brewster 04:51:38 -20.5 Dark Down 38.9 265.9 Up 04:36:38 - 05:06:38 -4091
Manson/Chelan 04:51:38 -20.4 Dark Down 39.2 265.8 Up 04:36:38 - 05:06:38 -4119
Wenatchee 04:51:41 -20.6 Dark Down 39.3 266.1 Up 04:36:41 - 05:06:41 -4162
Victoria 04:51:24 -18.3 Dark Down 41.3 262.6 Up 04:36:24 - 05:06:24 -4165
Ellensburg 04:51:42 -20.8 Dark Down 39.5 266.3 Up 04:36:42 - 05:06:42 -4202
Dunrhomin 04:52:58 -33.6 Dark Down 27.7 281.1 Low 04:37:58 - 05:07:58 -4218
PNWRO 04:51:53 -22.3 Dark Down 38.4 268.3 Up 04:36:53 - 05:06:53 -4231
Yakima 04:51:45 -21.0 Dark Down 39.5 266.6 Up 04:36:45 - 05:06:45 -4236
CU-SBO 04:52:59 -33.7 Dark Down 27.8 281.2 Low 04:37:59 - 05:07:59 -4242
Toppenish/White Swan 04:51:47 -21.2 Dark Down 39.4 266.9 Up 04:36:47 - 05:06:47 -4248
Goldendale 04:51:49 -21.3 Dark Down 39.8 267.0 Up 04:36:49 - 05:06:49 -4307
The Dalles 04:51:50 -21.3 Dark Down 40.0 267.0 Up 04:36:50 - 05:06:50 -4338
Maupin 04:51:51 -21.6 Dark Down 40.0 267.4 Up 04:36:51 - 05:06:51 -4369
Sisters 04:51:55 -21.8 Dark Down 40.3 267.8 Up 04:36:55 - 05:06:55 -4459
Bend 04:51:57 -22.1 Dark Down 40.1 268.2 Up 04:36:57 - 05:06:57 -4470
Oregon Observatory 04:51:57 -22.2 Dark Down 40.2 268.2 Up 04:36:57 - 05:06:57 -4489
North Lake 04:52:02 -22.9 Dark Down 39.9 269.2 Up 04:37:02 - 05:07:02 -4526
Lakeview 04:52:11 -23.9 Dark Down 39.4 270.4 Up 04:37:11 - 05:07:11 -4598
Chiloquin 04:52:03 -22.7 Dark Down 40.6 269.1 Up 04:37:03 - 05:07:03 -4616
Klamath Falls 04:52:05 -23.0 Dark Down 40.5 269.4 Up 04:37:05 - 05:07:05 -4642
Cedarville 04:52:15 -24.4 Dark Down 39.3 271.1 Up 04:37:15 - 05:07:15 -4648
Fall River/Burney 04:52:12 -23.9 Dark Down 40.2 270.7 Up 04:37:12 - 05:07:12 -4732
Susanville 04:52:20 -24.7 Dark Down 39.6 271.7 Up 04:37:20 - 05:07:20 -4762
Gimple 04:52:20 -24.8 Dark Down 39.7 271.8 Up 04:37:20 - 05:07:20 -4794
Greenville 04:52:20 -24.7 Dark Down 39.8 271.8 Up 04:37:20 - 05:07:20 -4796
Portola 04:52:23 -25.2 Dark Down 39.4 272.4 Up 04:37:23 - 05:07:23 -4808
Reno 04:52:27 -25.8 Dark Down 38.9 273.0 Up 04:37:27 - 05:07:27 -4809
Quincy 04:52:21 -24.8 Dark Down 39.8 271.9 Up 04:37:21 - 05:07:21 -4814
Yerington 04:52:31 -26.5 Dark Down 38.3 273.8 Up 04:37:31 - 05:07:31 -4835
Carson City 04:52:28 -26.0 Dark Down 38.9 273.3 Up 04:37:28 - 05:07:28 -4840
Tonopah 04:52:42 -28.3 Dark Down 36.7 275.7 Up 04:37:42 - 05:07:42 -4846
Hawthorne 04:52:35 -27.2 Dark Down 37.9 274.5 Up 04:37:35 - 05:07:35 -4857
Gardnerville 04:52:30 -26.2 Dark Down 38.8 273.5 Up 04:37:30 - 05:07:30 -4860
Indian Springs 04:52:54 -30.3 Dark Down 35.3 277.6 Up 04:37:54 - 05:07:54 -4920
Lee Vining 04:52:37 -27.2 Dark Down 38.2 274.7 Up 04:37:37 - 05:07:37 -4924
Beatty 04:52:48 -29.4 Dark Down 36.2 276.8 Up 04:37:48 - 05:07:48 -4932
Henderson 04:52:59 -31.0 Dark Down 34.6 278.3 Up 04:37:59 - 05:07:59 -4941
Bishop 04:52:41 -28.0 Dark Down 37.6 275.5 Up 04:37:41 - 05:07:41 -4951
Patrick 04:53:05 -32.2 Dark Down 33.6 279.3 Up 04:38:05 - 05:08:05 -4954
Kingman/Dolan Springs 04:53:06 -32.2 Dark Down 33.7 279.4 Up 04:38:06 - 05:08:06 -4981
Laughlin/Bullhead City 04:53:04 -31.9 Dark Down 34.2 279.1 Up 04:38:04 - 05:08:04 -5003
George/Scottsdale 04:53:19 -34.6 Dark Down 31.6 281.4 Up 04:38:19 - 05:08:19 -5026
Mohave Valley 04:53:06 -32.0 Dark Down 34.1 279.3 Up 04:38:06 - 05:08:06 -5027
Lake Havasu City 04:53:09 -32.5 Dark Down 33.8 279.7 Up 04:38:09 - 05:08:09 -5053
Parker 04:53:10 -32.7 Dark Down 33.7 280.0 Up 04:38:10 - 05:08:10 -5084
Idyllwild 04:53:05 -31.4 Dark Down 35.7 279.1 Up 04:38:05 - 05:08:05 -5214
Calipatria 04:53:12 -32.5 Dark Down 34.6 280.1 Up 04:38:12 - 05:08:12 -5224
Yuma 04:53:17 -33.4 Dark Down 33.7 280.8 Up 04:38:17 - 05:08:17 -5228
Wildwood 04:52:58 -29.8 Dark Down 37.3 278.0 Up 04:37:58 - 05:07:58 -5254

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 00YX1, (2029/04/09 04:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.31 120
Alnath         05:26:17.6 +28:36:23  1.6  9.40 114
139 Tau        05:57:59.6 +25:57:14  4.7  1.90 121
PPM 095354     06:05:05.6 +25:48:03  8.2  0.37 123
PPM 095405     06:06:47.8 +25:33:12  9.9  0.14 123
00YX1          06:06:12.1 +25:31:25 15.3       123
Positions are for J2000

Event circumstances last updated at 2022/02/27 01:03:48 UT

Marc W. Buie, Southwest Research Institute

RECON