RECON: TNO occultation with 523762

Event between (523762) 14WX509 and star GA0980:03619398 with event index number of 2613833

Geocentric closest approach at 2022/02/12 05:55:45 UTC

J2000 position of star is 10:30:59.7 +08:49:59
Equinox of date position of star is 10:32:08.8 +08:43:12
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 63 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 37.0 AU from the Sun and 36.1 AU from the Earth.
The TNO is moving 24.3 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is 1628 km.
The sky-plane scale is 26155.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=338.9 km assuming a 5% albedo -- 14.0 sec chord
Diameter=138.3 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is SCATEXTD

Star training set for 523762, (2022/02/12 05:56UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:32.9 +11:51:30  1.3  6.39  57
47Rho Leo      10:33:58.5 +09:11:32  3.8  0.65  63
PPM 156818     10:26:45.0 +08:39:49  7.6  1.34  62
PPM 156883     10:30:22.3 +09:09:32  9.6  0.62  62
PPM 156915     10:32:21.0 +08:39:56 10.4  0.07  63
523762         10:32:09.4 +08:43:08 16.8        63
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 5.0 sigma about the mid-time.
The median site spacing is 26.1 km RECON observability=1.0 and success probability=0.0%

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

Sleaford 05:58:07 -48.4 Dark Up 39.6 137.4 Up 05:51:00 - 06:05:15 10028

Kamloops 05:58:38 -43.8 Dark Up 33.5 121.2 Up 05:51:30 - 06:05:45 9738

Kelowna 05:58:39 -44.8 Dark Up 34.4 121.6 Up 05:51:31 - 06:05:46 9669

Peachland 05:58:39 -44.7 Dark Up 34.3 121.3 Up 05:51:31 - 06:05:46 9656

Summerland 05:58:39 -44.8 Dark Up 34.5 121.3 Up 05:51:31 - 06:05:46 9642

Penticton 05:58:38 -44.9 Dark Up 34.6 121.3 Up 05:51:30 - 06:05:45 9637

Oliver 05:58:40 -45.2 Dark Up 34.7 121.1 Up 05:51:32 - 06:05:47 9603

Anarchist Mountain Observatory 05:58:39 -45.4 Dark Up 34.9 121.2 Up 05:51:31 - 06:05:46 9589

Tonasket 05:58:40 -45.5 Dark Up 35.1 121.0 Up 05:51:33 - 06:05:48 9558

Okanogan 05:58:40 -45.7 Dark Up 35.2 120.6 Up 05:51:32 - 06:05:47 9524

Victoria 05:58:48 -43.6 Dark Up 32.9 117.1 Up 05:51:40 - 06:05:55 9507

Brewster 05:58:41 -45.7 Dark Up 35.2 120.3 Up 05:51:34 - 06:05:49 9496

Manson/Chelan 05:58:42 -45.7 Dark Up 35.1 119.8 Up 05:51:35 - 06:05:50 9472

Wenatchee 05:58:43 -45.9 Dark Up 35.2 119.3 Up 05:51:35 - 06:05:50 9425

Ellensburg 05:58:42 -46.0 Dark Up 35.3 118.9 Up 05:51:35 - 06:05:50 9382

Yakima 05:58:44 -46.3 Dark Up 35.5 118.6 Up 05:51:37 - 06:05:52 9342

Toppenish/White Swan 05:58:43 -46.5 Dark Up 35.7 118.6 Up 05:51:36 - 06:05:51 9322

Pasco 05:58:42 -47.3 Dark Up 36.5 119.8 Up 05:51:35 - 06:05:50 9322

PNWRO 05:58:42 -47.5 Dark Up 36.8 119.8 Up 05:51:35 - 06:05:50 9300

Goldendale 05:58:46 -46.6 Dark Up 35.7 117.9 Up 05:51:38 - 06:05:53 9264

The Dalles 05:58:46 -46.5 Dark Up 35.6 117.4 Up 05:51:39 - 06:05:54 9238

Maupin 05:58:47 -46.8 Dark Up 35.8 117.2 Up 05:51:39 - 06:05:54 9198

Redmond 05:58:49 -47.3 Dark Up 36.2 116.6 Up 05:51:42 - 06:05:57 9106

Sisters 05:58:48 -47.1 Dark Up 35.9 116.2 Up 05:51:41 - 06:05:56 9105

Bend 05:58:48 -47.3 Dark Up 36.2 116.3 Up 05:51:41 - 06:05:56 9084

Oregon Observatory 05:58:49 -47.4 Dark Up 36.2 116.1 Up 05:51:41 - 06:05:56 9065

La Pine/Gilchrist 05:58:50 -47.4 Dark Up 36.2 115.9 Up 05:51:43 - 06:05:58 9044

North Lake 05:58:49 -48.0 Dark Up 36.8 116.1 Up 05:51:42 - 06:05:57 9006

Paisley 05:58:48 -48.6 Dark Up 37.3 116.1 Up 05:51:41 - 06:05:56 8953

Chiloquin 05:58:51 -47.8 Dark Up 36.5 114.8 Up 05:51:44 - 06:05:59 8928

Dunrhomin 05:58:09 -58.6 Dark Up 48.2 130.1 Up 05:51:02 - 06:05:17 8913

Lakeview 05:58:49 -49.0 Dark Up 37.6 115.9 Up 05:51:42 - 06:05:57 8903

Klamath Falls 05:58:52 -48.1 Dark Up 36.7 114.7 Up 05:51:44 - 06:05:59 8894

Cedarville 05:58:48 -49.4 Dark Up 38.0 115.6 Up 05:51:41 - 06:05:56 8838

Fall River/Burney 05:58:52 -48.9 Dark Up 37.4 114.2 Up 05:51:44 - 06:05:59 8776

Susanville 05:58:50 -49.7 Dark Up 38.2 114.4 Up 05:51:43 - 06:05:58 8719

Gimple 05:58:51 -49.8 Dark Up 38.2 114.0 Up 05:51:43 - 06:05:58 8688

Greenville 05:58:51 -49.7 Dark Up 38.1 113.9 Up 05:51:44 - 06:05:59 8687

Quincy 05:58:52 -49.8 Dark Up 38.2 113.8 Up 05:51:44 - 06:05:59 8666

Portola 05:58:49 -50.2 Dark Up 38.6 114.1 Up 05:51:42 - 06:05:57 8658

Reno 05:58:49 -50.7 Dark Up 39.1 114.5 Up 05:51:41 - 06:05:56 8638

Carson City 05:58:49 -50.9 Dark Up 39.3 114.3 Up 05:51:42 - 06:05:57 8601

Yerington 05:58:49 -51.5 Dark Up 39.8 114.7 Up 05:51:41 - 06:05:56 8587

Gardnerville 05:58:50 -51.1 Dark Up 39.4 114.1 Up 05:51:42 - 06:05:57 8576

Hawthorne 05:58:46 -52.1 Dark Up 40.4 114.8 Up 05:51:38 - 06:05:53 8545

Tonopah 05:58:43 -53.2 Dark Up 41.6 115.7 Up 05:51:36 - 06:05:51 8513

Lee Vining 05:58:49 -52.0 Dark Up 40.3 113.9 Up 05:51:42 - 06:05:57 8481

Bishop 05:58:47 -52.8 Dark Up 41.0 114.1 Up 05:51:40 - 06:05:55 8426

Beatty 05:58:43 -54.2 Dark Up 42.4 115.2 Up 05:51:35 - 06:05:50 8397

Indian Springs 05:58:40 -55.1 Dark Up 43.3 115.9 Up 05:51:33 - 06:05:48 8377

Henderson 05:58:39 -55.8 Dark Up 44.0 116.1 Up 05:51:31 - 06:05:46 8330

Patrick 05:58:35 -56.9 Dark Up 45.1 116.6 Up 05:51:28 - 06:05:43 8279

Kingman/Dolan Springs 05:58:36 -56.9 Dark Up 45.1 116.2 Up 05:51:28 - 06:05:43 8253

Laughlin/Bullhead City 05:58:39 -56.6 Dark Up 44.7 115.7 Up 05:51:31 - 06:05:46 8244

Mohave Valley 05:58:37 -56.7 Dark Up 44.8 115.4 Up 05:51:30 - 06:05:45 8215

CPSLO 05:58:54 -52.2 Dark Up 40.1 110.6 Up 05:51:46 - 06:06:01 8183

Lake Havasu City 05:58:36 -57.1 Dark Up 45.2 115.3 Up 05:51:29 - 06:05:44 8176

Parker 05:58:38 -57.3 Dark Up 45.4 115.0 Up 05:51:30 - 06:05:45 8139

George/Scottsdale 05:58:30 -59.2 Dark Up 47.4 116.9 Up 05:51:23 - 06:05:38 8130

Blythe 05:58:38 -57.4 Dark Up 45.4 114.3 Up 05:51:30 - 06:05:45 8080

Wildwood 05:58:49 -54.3 Dark Up 42.1 111.3 Up 05:51:42 - 06:05:57 8078

Idyllwild 05:58:44 -55.8 Dark Up 43.7 112.5 Up 05:51:37 - 06:05:52 8064

Calipatria 05:58:42 -57.0 Dark Up 44.9 113.0 Up 05:51:34 - 06:05:49 8014

Yuma 05:58:39 -57.8 Dark Up 45.7 113.4 Up 05:51:31 - 06:05:46 7981

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 523762, (2022/02/12 05:56UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  6.39  57
47Rho Leo      10:32:48.7 +09:18:24  3.8  0.65  63
PPM 156818     10:25:35.1 +08:46:36  7.6  1.34  62
PPM 156883     10:29:12.5 +09:16:21  9.6  0.62  62
PPM 156915     10:31:11.3 +08:46:47 10.4  0.07  63
523762         10:30:59.7 +08:49:59 16.8        63
Positions are for J2000

Event circumstances last updated at 2021/12/06 01:46:25 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	05:58:07	-48.4	Dark	Up	39.6	137.4	Up	05:51:00 - 06:05:15	10028
Kamloops	05:58:38	-43.8	Dark	Up	33.5	121.2	Up	05:51:30 - 06:05:45	9738
Kelowna	05:58:39	-44.8	Dark	Up	34.4	121.6	Up	05:51:31 - 06:05:46	9669
Peachland	05:58:39	-44.7	Dark	Up	34.3	121.3	Up	05:51:31 - 06:05:46	9656
Summerland	05:58:39	-44.8	Dark	Up	34.5	121.3	Up	05:51:31 - 06:05:46	9642
Penticton	05:58:38	-44.9	Dark	Up	34.6	121.3	Up	05:51:30 - 06:05:45	9637
Oliver	05:58:40	-45.2	Dark	Up	34.7	121.1	Up	05:51:32 - 06:05:47	9603
Anarchist Mountain Observatory	05:58:39	-45.4	Dark	Up	34.9	121.2	Up	05:51:31 - 06:05:46	9589
Tonasket	05:58:40	-45.5	Dark	Up	35.1	121.0	Up	05:51:33 - 06:05:48	9558
Okanogan	05:58:40	-45.7	Dark	Up	35.2	120.6	Up	05:51:32 - 06:05:47	9524
Victoria	05:58:48	-43.6	Dark	Up	32.9	117.1	Up	05:51:40 - 06:05:55	9507
Brewster	05:58:41	-45.7	Dark	Up	35.2	120.3	Up	05:51:34 - 06:05:49	9496
Manson/Chelan	05:58:42	-45.7	Dark	Up	35.1	119.8	Up	05:51:35 - 06:05:50	9472
Wenatchee	05:58:43	-45.9	Dark	Up	35.2	119.3	Up	05:51:35 - 06:05:50	9425
Ellensburg	05:58:42	-46.0	Dark	Up	35.3	118.9	Up	05:51:35 - 06:05:50	9382
Yakima	05:58:44	-46.3	Dark	Up	35.5	118.6	Up	05:51:37 - 06:05:52	9342
Toppenish/White Swan	05:58:43	-46.5	Dark	Up	35.7	118.6	Up	05:51:36 - 06:05:51	9322
Pasco	05:58:42	-47.3	Dark	Up	36.5	119.8	Up	05:51:35 - 06:05:50	9322
PNWRO	05:58:42	-47.5	Dark	Up	36.8	119.8	Up	05:51:35 - 06:05:50	9300
Goldendale	05:58:46	-46.6	Dark	Up	35.7	117.9	Up	05:51:38 - 06:05:53	9264
The Dalles	05:58:46	-46.5	Dark	Up	35.6	117.4	Up	05:51:39 - 06:05:54	9238
Maupin	05:58:47	-46.8	Dark	Up	35.8	117.2	Up	05:51:39 - 06:05:54	9198
Redmond	05:58:49	-47.3	Dark	Up	36.2	116.6	Up	05:51:42 - 06:05:57	9106
Sisters	05:58:48	-47.1	Dark	Up	35.9	116.2	Up	05:51:41 - 06:05:56	9105
Bend	05:58:48	-47.3	Dark	Up	36.2	116.3	Up	05:51:41 - 06:05:56	9084
Oregon Observatory	05:58:49	-47.4	Dark	Up	36.2	116.1	Up	05:51:41 - 06:05:56	9065
La Pine/Gilchrist	05:58:50	-47.4	Dark	Up	36.2	115.9	Up	05:51:43 - 06:05:58	9044
North Lake	05:58:49	-48.0	Dark	Up	36.8	116.1	Up	05:51:42 - 06:05:57	9006
Paisley	05:58:48	-48.6	Dark	Up	37.3	116.1	Up	05:51:41 - 06:05:56	8953
Chiloquin	05:58:51	-47.8	Dark	Up	36.5	114.8	Up	05:51:44 - 06:05:59	8928
Dunrhomin	05:58:09	-58.6	Dark	Up	48.2	130.1	Up	05:51:02 - 06:05:17	8913
Lakeview	05:58:49	-49.0	Dark	Up	37.6	115.9	Up	05:51:42 - 06:05:57	8903
Klamath Falls	05:58:52	-48.1	Dark	Up	36.7	114.7	Up	05:51:44 - 06:05:59	8894
Cedarville	05:58:48	-49.4	Dark	Up	38.0	115.6	Up	05:51:41 - 06:05:56	8838
Fall River/Burney	05:58:52	-48.9	Dark	Up	37.4	114.2	Up	05:51:44 - 06:05:59	8776
Susanville	05:58:50	-49.7	Dark	Up	38.2	114.4	Up	05:51:43 - 06:05:58	8719
Gimple	05:58:51	-49.8	Dark	Up	38.2	114.0	Up	05:51:43 - 06:05:58	8688
Greenville	05:58:51	-49.7	Dark	Up	38.1	113.9	Up	05:51:44 - 06:05:59	8687
Quincy	05:58:52	-49.8	Dark	Up	38.2	113.8	Up	05:51:44 - 06:05:59	8666
Portola	05:58:49	-50.2	Dark	Up	38.6	114.1	Up	05:51:42 - 06:05:57	8658
Reno	05:58:49	-50.7	Dark	Up	39.1	114.5	Up	05:51:41 - 06:05:56	8638
Carson City	05:58:49	-50.9	Dark	Up	39.3	114.3	Up	05:51:42 - 06:05:57	8601
Yerington	05:58:49	-51.5	Dark	Up	39.8	114.7	Up	05:51:41 - 06:05:56	8587
Gardnerville	05:58:50	-51.1	Dark	Up	39.4	114.1	Up	05:51:42 - 06:05:57	8576
Hawthorne	05:58:46	-52.1	Dark	Up	40.4	114.8	Up	05:51:38 - 06:05:53	8545
Tonopah	05:58:43	-53.2	Dark	Up	41.6	115.7	Up	05:51:36 - 06:05:51	8513
Lee Vining	05:58:49	-52.0	Dark	Up	40.3	113.9	Up	05:51:42 - 06:05:57	8481
Bishop	05:58:47	-52.8	Dark	Up	41.0	114.1	Up	05:51:40 - 06:05:55	8426
Beatty	05:58:43	-54.2	Dark	Up	42.4	115.2	Up	05:51:35 - 06:05:50	8397
Indian Springs	05:58:40	-55.1	Dark	Up	43.3	115.9	Up	05:51:33 - 06:05:48	8377
Henderson	05:58:39	-55.8	Dark	Up	44.0	116.1	Up	05:51:31 - 06:05:46	8330
Patrick	05:58:35	-56.9	Dark	Up	45.1	116.6	Up	05:51:28 - 06:05:43	8279
Kingman/Dolan Springs	05:58:36	-56.9	Dark	Up	45.1	116.2	Up	05:51:28 - 06:05:43	8253
Laughlin/Bullhead City	05:58:39	-56.6	Dark	Up	44.7	115.7	Up	05:51:31 - 06:05:46	8244
Mohave Valley	05:58:37	-56.7	Dark	Up	44.8	115.4	Up	05:51:30 - 06:05:45	8215
CPSLO	05:58:54	-52.2	Dark	Up	40.1	110.6	Up	05:51:46 - 06:06:01	8183
Lake Havasu City	05:58:36	-57.1	Dark	Up	45.2	115.3	Up	05:51:29 - 06:05:44	8176
Parker	05:58:38	-57.3	Dark	Up	45.4	115.0	Up	05:51:30 - 06:05:45	8139
George/Scottsdale	05:58:30	-59.2	Dark	Up	47.4	116.9	Up	05:51:23 - 06:05:38	8130
Blythe	05:58:38	-57.4	Dark	Up	45.4	114.3	Up	05:51:30 - 06:05:45	8080
Wildwood	05:58:49	-54.3	Dark	Up	42.1	111.3	Up	05:51:42 - 06:05:57	8078
Idyllwild	05:58:44	-55.8	Dark	Up	43.7	112.5	Up	05:51:37 - 06:05:52	8064
Calipatria	05:58:42	-57.0	Dark	Up	44.9	113.0	Up	05:51:34 - 06:05:49	8014
Yuma	05:58:39	-57.8	Dark	Up	45.7	113.4	Up	05:51:31 - 06:05:46	7981