RECON: TNO occultation with 11UK413

Event between 11UK413 and star GA1100:01410180 with event index number of 2130015

Geocentric closest approach at 2021/12/08 12:32:47 UTC

J2000 position of star is 05:46:32.1 +20:54:21
Equinox of date position of star is 05:47:50.7 +20:54:45
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon. Moon is 24% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 42.2 AU from the Sun and 41.2 AU from the Earth.
The TNO is moving 25.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 275 seconds.
The 1-sigma cross-track error in the shadow position is 2524 km.
The sky-plane scale is 29868.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=304.8 km assuming a 5% albedo -- 12.0 sec chord
Diameter=124.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATEXTD

Star training set for 11UK413, (2021/12/08 12:33UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.6 +07:24:34  0.4 13.66 130
Alnath         05:27:40.8 +28:37:26  1.6  8.96 128
PPM 121513     05:53:41.4 +19:52:18  6.4  1.72 133
PPM 094877     05:48:57.0 +20:56:48  7.9  0.26 132
PPM 094856     05:48:11.8 +20:48:53  9.5  0.13 132
11UK413        05:47:50.7 +20:54:45 15.7       132
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 3.3 sigma about the mid-time.
The median site spacing is 26.1 km RECON observability=1.0 and success probability=0.9%

Site Site mid-time
(UT) Sun alt
(deg) Sky Moon Star alt
(deg) Star az
(deg) Target Observing Time
(UT) X-track
(km)

Sleaford 12:30:07 -21.6 Dark Down 27.0 269.8 Low 12:15:07 - 12:45:07 10180

Kamloops 12:30:22 -30.4 Dark Down 36.1 258.9 Up 12:15:22 - 12:45:22 9770

Kelowna 12:30:18 -29.9 Dark Down 35.7 260.2 Up 12:15:18 - 12:45:18 9715

Peachland 12:30:18 -30.1 Dark Down 35.9 260.0 Up 12:15:18 - 12:45:18 9700

Summerland 12:30:18 -30.0 Dark Down 35.9 260.2 Up 12:15:18 - 12:45:18 9689

Penticton 12:30:18 -29.9 Dark Down 35.8 260.4 Up 12:15:18 - 12:45:18 9685

Oliver 12:30:17 -29.9 Dark Down 35.9 260.6 Up 12:15:17 - 12:45:17 9654

Anarchist Mountain Observatory 12:30:15 -29.8 Dark Down 35.8 260.9 Up 12:15:15 - 12:45:15 9642

Tonasket 12:30:15 -29.8 Dark Down 35.9 261.0 Up 12:15:15 - 12:45:15 9613

Okanogan 12:30:14 -29.9 Dark Down 36.0 261.2 Up 12:15:14 - 12:45:14 9580

Brewster 12:30:14 -30.1 Dark Down 36.2 261.2 Up 12:15:14 - 12:45:14 9552

Manson/Chelan 12:30:14 -30.3 Dark Down 36.5 261.0 Up 12:15:14 - 12:45:14 9526

Victoria 12:30:21 -32.4 Dark Down 38.5 257.8 Up 12:15:21 - 12:45:21 9522

Wenatchee 12:30:14 -30.4 Dark Down 36.7 261.2 Up 12:15:14 - 12:45:14 9480

Ellensburg 12:30:12 -30.5 Dark Down 36.9 261.4 Up 12:15:12 - 12:45:12 9438

Yakima 12:30:12 -30.5 Dark Down 36.9 261.7 Up 12:15:12 - 12:45:12 9400

Pasco 12:30:08 -29.6 Dark Down 36.0 263.0 Up 12:15:08 - 12:45:08 9398

Toppenish/White Swan 12:30:10 -30.4 Dark Down 36.9 261.9 Up 12:15:10 - 12:45:10 9384

PNWRO 12:30:08 -29.4 Dark Down 35.9 263.4 Up 12:15:08 - 12:45:08 9380

Goldendale 12:30:10 -30.7 Dark Down 37.2 262.0 Up 12:15:10 - 12:45:10 9324

The Dalles 12:30:10 -31.0 Dark Down 37.5 261.9 Up 12:15:10 - 12:45:10 9296

Maupin 12:30:09 -30.9 Dark Down 37.5 262.3 Up 12:15:09 - 12:45:09 9259

Dunrhomin 12:29:34 -18.7 Dark Down 26.0 276.2 Low 12:14:34 - 12:44:34 9182

Redmond 12:30:07 -30.9 Dark Down 37.7 262.9 Up 12:15:07 - 12:45:07 9173

Sisters 12:30:08 -31.2 Dark Down 38.0 262.6 Up 12:15:08 - 12:45:08 9167

Bend 12:30:07 -31.0 Dark Down 37.8 263.0 Up 12:15:07 - 12:45:07 9150

Oregon Observatory 12:30:07 -31.1 Dark Down 37.9 263.0 Up 12:15:07 - 12:45:07 9131

La Pine/Gilchrist 12:30:06 -31.1 Dark Down 38.0 263.1 Up 12:15:06 - 12:45:06 9110

North Lake 12:30:05 -30.7 Dark Down 37.6 263.9 Up 12:15:05 - 12:45:05 9081

Paisley 12:30:02 -30.4 Dark Down 37.4 264.6 Up 12:15:02 - 12:45:02 9037

Chiloquin 12:30:05 -31.3 Dark Down 38.4 263.7 Up 12:15:05 - 12:45:05 8997

Lakeview 12:30:01 -30.2 Dark Down 37.3 265.1 Up 12:15:01 - 12:45:01 8992

Klamath Falls 12:30:04 -31.2 Dark Down 38.4 264.0 Up 12:15:04 - 12:45:04 8966

Cedarville 12:29:58 -30.0 Dark Down 37.3 265.7 Up 12:14:58 - 12:44:58 8933

Fall River/Burney 12:30:01 -30.9 Dark Down 38.2 265.2 Up 12:15:01 - 12:45:01 8860

Susanville 12:29:58 -30.3 Dark Down 37.7 266.2 Up 12:14:58 - 12:44:58 8815

Gimple 12:29:58 -30.4 Dark Down 37.9 266.3 Up 12:14:58 - 12:44:58 8783

Greenville 12:29:58 -30.5 Dark Down 37.9 266.2 Up 12:14:58 - 12:44:58 8782

Quincy 12:29:57 -30.5 Dark Down 38.0 266.4 Up 12:14:57 - 12:44:57 8762

Portola 12:29:56 -30.1 Dark Down 37.6 266.8 Up 12:14:56 - 12:44:56 8760

Reno 12:29:54 -29.6 Dark Down 37.1 267.4 Up 12:14:54 - 12:44:54 8749

Carson City 12:29:53 -29.5 Dark Down 37.1 267.7 Up 12:14:53 - 12:44:53 8714

Yerington 12:29:52 -29.0 Dark Down 36.6 268.3 Up 12:14:52 - 12:44:52 8710

Gardnerville 12:29:53 -29.5 Dark Down 37.1 267.9 Up 12:14:53 - 12:44:53 8692

Hawthorne 12:29:50 -28.5 Dark Down 36.2 269.0 Up 12:14:50 - 12:44:50 8677

Tonopah 12:29:47 -27.4 Dark Down 35.1 270.2 Up 12:14:47 - 12:44:47 8665

Lee Vining 12:29:49 -28.9 Dark Down 36.6 269.1 Up 12:14:49 - 12:44:49 8610

Bishop 12:29:47 -28.2 Dark Down 36.1 270.0 Up 12:14:47 - 12:44:47 8568

Beatty 12:29:43 -26.9 Dark Down 34.8 271.3 Up 12:14:43 - 12:44:43 8562

Indian Springs 12:29:42 -26.0 Dark Down 33.9 272.1 Up 12:14:42 - 12:44:42 8556

Henderson 12:29:39 -25.3 Dark Down 33.3 272.8 Up 12:14:39 - 12:44:39 8521

Patrick 12:29:35 -24.3 Dark Down 32.4 273.9 Up 12:14:35 - 12:44:35 8488

Kingman/Dolan Springs 12:29:35 -24.4 Dark Down 32.5 273.9 Up 12:14:35 - 12:44:35 8461

Laughlin/Bullhead City 12:29:36 -24.8 Dark Down 33.0 273.6 Up 12:14:36 - 12:44:36 8445

Mohave Valley 12:29:35 -24.8 Dark Down 32.9 273.8 Up 12:14:35 - 12:44:35 8418

Lake Havasu City 12:29:34 -24.5 Dark Down 32.7 274.2 Up 12:14:34 - 12:44:34 8385

George/Scottsdale 12:29:29 -22.4 Dark Down 30.6 275.9 Up 12:14:29 - 12:44:29 8374

Parker 12:29:33 -24.4 Dark Down 32.7 274.4 Up 12:14:33 - 12:44:33 8351

CPSLO 12:29:47 -29.7 Dark Down 37.9 270.2 Up 12:14:47 - 12:44:47 8308

Blythe 12:29:33 -24.5 Dark Down 32.9 274.6 Up 12:14:33 - 12:44:33 8291

Idyllwild 12:29:37 -26.3 Dark Down 34.6 273.5 Up 12:14:37 - 12:44:37 8248

Wildwood 12:29:41 -27.9 Dark Down 36.2 272.2 Up 12:14:41 - 12:44:41 8236

Calipatria 12:29:34 -25.2 Dark Down 33.6 274.5 Up 12:14:34 - 12:44:34 8217

Yuma 12:29:31 -24.4 Dark Down 32.8 275.2 Up 12:14:31 - 12:44:31 8197

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 11UK413, (2021/12/08 12:33UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.66 130
Alnath         05:26:17.6 +28:36:23  1.6  8.96 128
PPM 121513     05:52:23.4 +19:52:04  6.4  1.72 133
PPM 094877     05:47:38.4 +20:56:26  7.9  0.26 132
PPM 094856     05:46:53.3 +20:48:29  9.5  0.13 132
11UK413        05:46:32.1 +20:54:21 15.7       132
Positions are for J2000

Event circumstances last updated at 2021/12/04 02:01:13 UT

Marc W. Buie, Southwest Research Institute

RECON

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	12:30:07	-21.6	Dark	Down	27.0	269.8	Low	12:15:07 - 12:45:07	10180
Kamloops	12:30:22	-30.4	Dark	Down	36.1	258.9	Up	12:15:22 - 12:45:22	9770
Kelowna	12:30:18	-29.9	Dark	Down	35.7	260.2	Up	12:15:18 - 12:45:18	9715
Peachland	12:30:18	-30.1	Dark	Down	35.9	260.0	Up	12:15:18 - 12:45:18	9700
Summerland	12:30:18	-30.0	Dark	Down	35.9	260.2	Up	12:15:18 - 12:45:18	9689
Penticton	12:30:18	-29.9	Dark	Down	35.8	260.4	Up	12:15:18 - 12:45:18	9685
Oliver	12:30:17	-29.9	Dark	Down	35.9	260.6	Up	12:15:17 - 12:45:17	9654
Anarchist Mountain Observatory	12:30:15	-29.8	Dark	Down	35.8	260.9	Up	12:15:15 - 12:45:15	9642
Tonasket	12:30:15	-29.8	Dark	Down	35.9	261.0	Up	12:15:15 - 12:45:15	9613
Okanogan	12:30:14	-29.9	Dark	Down	36.0	261.2	Up	12:15:14 - 12:45:14	9580
Brewster	12:30:14	-30.1	Dark	Down	36.2	261.2	Up	12:15:14 - 12:45:14	9552
Manson/Chelan	12:30:14	-30.3	Dark	Down	36.5	261.0	Up	12:15:14 - 12:45:14	9526
Victoria	12:30:21	-32.4	Dark	Down	38.5	257.8	Up	12:15:21 - 12:45:21	9522
Wenatchee	12:30:14	-30.4	Dark	Down	36.7	261.2	Up	12:15:14 - 12:45:14	9480
Ellensburg	12:30:12	-30.5	Dark	Down	36.9	261.4	Up	12:15:12 - 12:45:12	9438
Yakima	12:30:12	-30.5	Dark	Down	36.9	261.7	Up	12:15:12 - 12:45:12	9400
Pasco	12:30:08	-29.6	Dark	Down	36.0	263.0	Up	12:15:08 - 12:45:08	9398
Toppenish/White Swan	12:30:10	-30.4	Dark	Down	36.9	261.9	Up	12:15:10 - 12:45:10	9384
PNWRO	12:30:08	-29.4	Dark	Down	35.9	263.4	Up	12:15:08 - 12:45:08	9380
Goldendale	12:30:10	-30.7	Dark	Down	37.2	262.0	Up	12:15:10 - 12:45:10	9324
The Dalles	12:30:10	-31.0	Dark	Down	37.5	261.9	Up	12:15:10 - 12:45:10	9296
Maupin	12:30:09	-30.9	Dark	Down	37.5	262.3	Up	12:15:09 - 12:45:09	9259
Dunrhomin	12:29:34	-18.7	Dark	Down	26.0	276.2	Low	12:14:34 - 12:44:34	9182
Redmond	12:30:07	-30.9	Dark	Down	37.7	262.9	Up	12:15:07 - 12:45:07	9173
Sisters	12:30:08	-31.2	Dark	Down	38.0	262.6	Up	12:15:08 - 12:45:08	9167
Bend	12:30:07	-31.0	Dark	Down	37.8	263.0	Up	12:15:07 - 12:45:07	9150
Oregon Observatory	12:30:07	-31.1	Dark	Down	37.9	263.0	Up	12:15:07 - 12:45:07	9131
La Pine/Gilchrist	12:30:06	-31.1	Dark	Down	38.0	263.1	Up	12:15:06 - 12:45:06	9110
North Lake	12:30:05	-30.7	Dark	Down	37.6	263.9	Up	12:15:05 - 12:45:05	9081
Paisley	12:30:02	-30.4	Dark	Down	37.4	264.6	Up	12:15:02 - 12:45:02	9037
Chiloquin	12:30:05	-31.3	Dark	Down	38.4	263.7	Up	12:15:05 - 12:45:05	8997
Lakeview	12:30:01	-30.2	Dark	Down	37.3	265.1	Up	12:15:01 - 12:45:01	8992
Klamath Falls	12:30:04	-31.2	Dark	Down	38.4	264.0	Up	12:15:04 - 12:45:04	8966
Cedarville	12:29:58	-30.0	Dark	Down	37.3	265.7	Up	12:14:58 - 12:44:58	8933
Fall River/Burney	12:30:01	-30.9	Dark	Down	38.2	265.2	Up	12:15:01 - 12:45:01	8860
Susanville	12:29:58	-30.3	Dark	Down	37.7	266.2	Up	12:14:58 - 12:44:58	8815
Gimple	12:29:58	-30.4	Dark	Down	37.9	266.3	Up	12:14:58 - 12:44:58	8783
Greenville	12:29:58	-30.5	Dark	Down	37.9	266.2	Up	12:14:58 - 12:44:58	8782
Quincy	12:29:57	-30.5	Dark	Down	38.0	266.4	Up	12:14:57 - 12:44:57	8762
Portola	12:29:56	-30.1	Dark	Down	37.6	266.8	Up	12:14:56 - 12:44:56	8760
Reno	12:29:54	-29.6	Dark	Down	37.1	267.4	Up	12:14:54 - 12:44:54	8749
Carson City	12:29:53	-29.5	Dark	Down	37.1	267.7	Up	12:14:53 - 12:44:53	8714
Yerington	12:29:52	-29.0	Dark	Down	36.6	268.3	Up	12:14:52 - 12:44:52	8710
Gardnerville	12:29:53	-29.5	Dark	Down	37.1	267.9	Up	12:14:53 - 12:44:53	8692
Hawthorne	12:29:50	-28.5	Dark	Down	36.2	269.0	Up	12:14:50 - 12:44:50	8677
Tonopah	12:29:47	-27.4	Dark	Down	35.1	270.2	Up	12:14:47 - 12:44:47	8665
Lee Vining	12:29:49	-28.9	Dark	Down	36.6	269.1	Up	12:14:49 - 12:44:49	8610
Bishop	12:29:47	-28.2	Dark	Down	36.1	270.0	Up	12:14:47 - 12:44:47	8568
Beatty	12:29:43	-26.9	Dark	Down	34.8	271.3	Up	12:14:43 - 12:44:43	8562
Indian Springs	12:29:42	-26.0	Dark	Down	33.9	272.1	Up	12:14:42 - 12:44:42	8556
Henderson	12:29:39	-25.3	Dark	Down	33.3	272.8	Up	12:14:39 - 12:44:39	8521
Patrick	12:29:35	-24.3	Dark	Down	32.4	273.9	Up	12:14:35 - 12:44:35	8488
Kingman/Dolan Springs	12:29:35	-24.4	Dark	Down	32.5	273.9	Up	12:14:35 - 12:44:35	8461
Laughlin/Bullhead City	12:29:36	-24.8	Dark	Down	33.0	273.6	Up	12:14:36 - 12:44:36	8445
Mohave Valley	12:29:35	-24.8	Dark	Down	32.9	273.8	Up	12:14:35 - 12:44:35	8418
Lake Havasu City	12:29:34	-24.5	Dark	Down	32.7	274.2	Up	12:14:34 - 12:44:34	8385
George/Scottsdale	12:29:29	-22.4	Dark	Down	30.6	275.9	Up	12:14:29 - 12:44:29	8374
Parker	12:29:33	-24.4	Dark	Down	32.7	274.4	Up	12:14:33 - 12:44:33	8351
CPSLO	12:29:47	-29.7	Dark	Down	37.9	270.2	Up	12:14:47 - 12:44:47	8308
Blythe	12:29:33	-24.5	Dark	Down	32.9	274.6	Up	12:14:33 - 12:44:33	8291
Idyllwild	12:29:37	-26.3	Dark	Down	34.6	273.5	Up	12:14:37 - 12:44:37	8248
Wildwood	12:29:41	-27.9	Dark	Down	36.2	272.2	Up	12:14:41 - 12:44:41	8236
Calipatria	12:29:34	-25.2	Dark	Down	33.6	274.5	Up	12:14:34 - 12:44:34	8217
Yuma	12:29:31	-24.4	Dark	Down	32.8	275.2	Up	12:14:31 - 12:44:31	8197