RECON: TNO occultation with 49036

Event between (49036) Pelion and star GA0980:00292549 with event index number of 1747393

Geocentric closest approach at 2021/10/31 05:19:56 UTC

J2000 position of star is 03:23:46.2 +08:45:52
Equinox of date position of star is 03:24:54.4 +08:50:17
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 106 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 21.5 AU from the Sun and 20.5 AU from the Earth.
The TNO is moving 23.2 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is 1449 km.
The sky-plane scale is 14887.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.4
Diameter=50.1 km assuming a 5% albedo -- 2.2 sec chord
Diameter=20.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR

Star training set for 49036, (2021/10/31 05:20UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.6 +16:33:05  0.8 19.21  87
Menkar         03:03:25.4 +04:10:27  2.5  7.10 112
1Omi Tau       03:25:59.5 +09:06:15  3.6  0.37 106
PPM 146480     03:22:11.3 +08:31:42  8.0  0.75 107
1Omi Tau       03:25:59.5 +09:06:15  3.6  0.37 106
PPM 146519     03:24:50.5 +08:54:54 10.8  0.08 106
49036          03:24:56.9 +08:50:26 15.7       106
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 17.3 km RECON observability=1.0 and success probability=25.2%

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

Clarence Fulton 05:21:12 -44.2 Dark Down 31.4 117.1 Up 05:08:13 - 05:34:11 1160

Victoria 05:21:25 -43.1 Dark Down 29.8 112.5 Low 05:08:26 - 05:34:24 1147

Peachland 05:21:15 -44.3 Dark Down 31.4 116.4 Up 05:08:16 - 05:34:14 1141

Kelowna 05:21:14 -44.3 Dark Down 31.5 116.8 Up 05:08:15 - 05:34:13 1141

Summerland 05:21:15 -44.4 Dark Down 31.5 116.4 Up 05:08:16 - 05:34:14 1130

Penticton 05:21:15 -44.5 Dark Down 31.6 116.5 Up 05:08:16 - 05:34:14 1124

Oliver 05:21:16 -44.7 Dark Down 31.8 116.3 Up 05:08:17 - 05:34:15 1104

Anarchist Mountain Observatory 05:21:17 -44.9 Dark Down 32.0 116.4 Up 05:08:18 - 05:34:16 1090

Tonasket 05:21:18 -45.1 Dark Down 32.1 116.2 Up 05:08:19 - 05:34:17 1073

Okanogan 05:21:19 -45.2 Dark Down 32.1 115.8 Up 05:08:20 - 05:34:18 1056

Brewster 05:21:20 -45.3 Dark Down 32.1 115.5 Up 05:08:21 - 05:34:19 1044

Manson/Chelan 05:21:22 -45.2 Dark Down 32.0 115.0 Up 05:08:23 - 05:34:21 1040

Wenatchee 05:21:24 -45.4 Dark Down 32.1 114.6 Up 05:08:25 - 05:34:23 1015

Ellensburg 05:21:26 -45.5 Dark Down 32.1 114.2 Up 05:08:27 - 05:34:25 994

Yakima 05:21:27 -45.7 Dark Down 32.3 114.0 Up 05:08:28 - 05:34:26 970

Toppenish/White Swan 05:21:28 -46.0 Dark Down 32.5 114.0 Up 05:08:29 - 05:34:27 952

Goldendale 05:21:31 -46.0 Dark Down 32.5 113.3 Up 05:08:32 - 05:34:30 927

The Dalles 05:21:32 -46.0 Dark Down 32.3 112.8 Up 05:08:33 - 05:34:31 921

Pasco 05:21:26 -46.8 Dark Down 33.3 115.1 Up 05:08:27 - 05:34:25 916

PNWRO 05:21:26 -47.0 Dark Down 33.6 115.1 Up 05:08:27 - 05:34:25 895

Maupin 05:21:33 -46.3 Dark Down 32.5 112.7 Up 05:08:34 - 05:34:32 892

Sisters 05:21:37 -46.4 Dark Down 32.6 111.8 Up 05:08:38 - 05:34:36 847

Redmond 05:21:37 -46.7 Dark Down 32.8 112.1 Up 05:08:38 - 05:34:36 837

Bend 05:21:38 -46.7 Dark Down 32.8 111.8 Up 05:08:39 - 05:34:37 826

Oregon Observatory 05:21:39 -46.7 Dark Down 32.8 111.6 Up 05:08:40 - 05:34:38 818

La Pine/Gilchrist 05:21:40 -46.8 Dark Down 32.8 111.5 Up 05:08:41 - 05:34:39 806

North Lake 05:21:40 -47.4 Dark Down 33.4 111.7 Up 05:08:41 - 05:34:39 763

Paisley 05:21:41 -47.9 Dark Down 33.9 111.7 Up 05:08:42 - 05:34:40 717

Klamath Falls 05:21:45 -47.4 Dark Down 33.2 110.4 Up 05:08:46 - 05:34:44 715

Lakeview 05:21:43 -48.3 Dark Down 34.2 111.5 Up 05:08:44 - 05:34:42 678

Cedarville 05:21:44 -48.8 Dark Down 34.6 111.3 Up 05:08:45 - 05:34:43 629

Fall River/Burney 05:21:49 -48.2 Dark Down 33.9 110.0 Up 05:08:50 - 05:34:48 625

Susanville 05:21:49 -49.0 Dark Down 34.6 110.2 Up 05:08:50 - 05:34:48 562

Greenville 05:21:51 -49.0 Dark Down 34.5 109.8 Up 05:08:52 - 05:34:50 550

Gimple 05:21:51 -49.0 Dark Down 34.6 109.8 Up 05:08:52 - 05:34:50 548

Quincy 05:21:52 -49.1 Dark Down 34.6 109.6 Up 05:08:53 - 05:34:51 535

Portola 05:21:51 -49.5 Dark Down 35.0 109.9 Up 05:08:52 - 05:34:50 515

Reno 05:21:51 -50.0 Dark Down 35.5 110.3 Up 05:08:52 - 05:34:50 479

Carson City 05:21:52 -50.2 Dark Down 35.7 110.1 Up 05:08:53 - 05:34:51 453

Gardnerville 05:21:53 -50.4 Dark Down 35.8 110.0 Up 05:08:54 - 05:34:52 434

Yerington 05:21:51 -50.8 Dark Down 36.2 110.5 Up 05:08:52 - 05:34:50 422

Hawthorne 05:21:51 -51.3 Dark Down 36.8 110.6 Up 05:08:52 - 05:34:50 374

Lee Vining 05:21:54 -51.3 Dark Down 36.6 109.8 Up 05:08:55 - 05:34:53 345

Tonopah 05:21:50 -52.5 Dark Down 38.0 111.4 Up 05:08:51 - 05:34:49 303

Bishop 05:21:55 -52.1 Dark Down 37.3 110.0 Up 05:08:56 - 05:34:54 281

Beatty 05:21:52 -53.4 Dark Down 38.7 111.0 Up 05:08:53 - 05:34:51 202

CPSLO 05:22:06 -51.4 Dark Down 36.3 106.8 Up 05:09:07 - 05:35:05 182

Dunrhomin 05:21:13 -58.2 Dark Down 45.1 124.5 Up 05:08:14 - 05:34:12 150

Indian Springs 05:21:51 -54.3 Dark Down 39.6 111.6 Up 05:08:52 - 05:34:50 148

Henderson 05:21:51 -55.1 Dark Down 40.4 111.8 Up 05:08:52 - 05:34:50 87

Wildwood 05:22:05 -53.4 Dark Down 38.3 107.4 Up 05:09:06 - 05:35:04 32

Patrick 05:21:50 -56.2 Dark Down 41.4 112.2 Up 05:08:51 - 05:34:49 7

Laughlin/Bullhead City 05:21:52 -55.8 Dark Down 41.0 111.4 Up 05:08:53 - 05:34:51 7

Kingman/Dolan Springs 05:21:51 -56.2 Dark Down 41.4 111.9 Up 05:08:52 - 05:34:50 -5

Mohave Valley 05:21:53 -56.0 Dark Down 41.1 111.2 Up 05:08:54 - 05:34:52 -15

Idyllwild 05:22:02 -55.0 Dark Down 39.9 108.6 Up 05:09:03 - 05:35:01 -48

Lake Havasu City 05:21:54 -56.4 Dark Down 41.4 111.1 Up 05:08:55 - 05:34:53 -54

Parker 05:21:55 -56.6 Dark Down 41.6 110.8 Up 05:08:56 - 05:34:54 -83

Blythe 05:21:57 -56.6 Dark Down 41.5 110.2 Up 05:08:58 - 05:34:56 -118

Calipatria 05:22:01 -56.1 Dark Down 41.0 109.0 Up 05:09:02 - 05:35:00 -132

George/Scottsdale 05:21:50 -58.5 Dark Down 43.6 112.5 Up 05:08:51 - 05:34:49 -187

Yuma 05:22:00 -57.0 Dark Down 41.8 109.4 Up 05:09:01 - 05:34:59 -193

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 49036, (2021/10/31 05:20UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 19.21  87
Menkar         03:02:16.8 +04:05:21  2.5  7.10 112
1Omi Tau       03:24:48.7 +09:01:42  3.6  0.37 106
PPM 146480     03:21:00.8 +08:27:03  8.0  0.75 107
1Omi Tau       03:24:48.7 +09:01:42  3.6  0.37 106
PPM 146519     03:23:39.8 +08:50:19 10.8  0.08 106
49036          03:23:46.2 +08:45:52 15.7       106
Positions are for J2000

Event circumstances last updated at 2021/01/26 21:15:40 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)
Clarence Fulton	05:21:12	-44.2	Dark	Down	31.4	117.1	Up	05:08:13 - 05:34:11	1160
Victoria	05:21:25	-43.1	Dark	Down	29.8	112.5	Low	05:08:26 - 05:34:24	1147
Peachland	05:21:15	-44.3	Dark	Down	31.4	116.4	Up	05:08:16 - 05:34:14	1141
Kelowna	05:21:14	-44.3	Dark	Down	31.5	116.8	Up	05:08:15 - 05:34:13	1141
Summerland	05:21:15	-44.4	Dark	Down	31.5	116.4	Up	05:08:16 - 05:34:14	1130
Penticton	05:21:15	-44.5	Dark	Down	31.6	116.5	Up	05:08:16 - 05:34:14	1124
Oliver	05:21:16	-44.7	Dark	Down	31.8	116.3	Up	05:08:17 - 05:34:15	1104
Anarchist Mountain Observatory	05:21:17	-44.9	Dark	Down	32.0	116.4	Up	05:08:18 - 05:34:16	1090
Tonasket	05:21:18	-45.1	Dark	Down	32.1	116.2	Up	05:08:19 - 05:34:17	1073
Okanogan	05:21:19	-45.2	Dark	Down	32.1	115.8	Up	05:08:20 - 05:34:18	1056
Brewster	05:21:20	-45.3	Dark	Down	32.1	115.5	Up	05:08:21 - 05:34:19	1044
Manson/Chelan	05:21:22	-45.2	Dark	Down	32.0	115.0	Up	05:08:23 - 05:34:21	1040
Wenatchee	05:21:24	-45.4	Dark	Down	32.1	114.6	Up	05:08:25 - 05:34:23	1015
Ellensburg	05:21:26	-45.5	Dark	Down	32.1	114.2	Up	05:08:27 - 05:34:25	994
Yakima	05:21:27	-45.7	Dark	Down	32.3	114.0	Up	05:08:28 - 05:34:26	970
Toppenish/White Swan	05:21:28	-46.0	Dark	Down	32.5	114.0	Up	05:08:29 - 05:34:27	952
Goldendale	05:21:31	-46.0	Dark	Down	32.5	113.3	Up	05:08:32 - 05:34:30	927
The Dalles	05:21:32	-46.0	Dark	Down	32.3	112.8	Up	05:08:33 - 05:34:31	921
Pasco	05:21:26	-46.8	Dark	Down	33.3	115.1	Up	05:08:27 - 05:34:25	916
PNWRO	05:21:26	-47.0	Dark	Down	33.6	115.1	Up	05:08:27 - 05:34:25	895
Maupin	05:21:33	-46.3	Dark	Down	32.5	112.7	Up	05:08:34 - 05:34:32	892
Sisters	05:21:37	-46.4	Dark	Down	32.6	111.8	Up	05:08:38 - 05:34:36	847
Redmond	05:21:37	-46.7	Dark	Down	32.8	112.1	Up	05:08:38 - 05:34:36	837
Bend	05:21:38	-46.7	Dark	Down	32.8	111.8	Up	05:08:39 - 05:34:37	826
Oregon Observatory	05:21:39	-46.7	Dark	Down	32.8	111.6	Up	05:08:40 - 05:34:38	818
La Pine/Gilchrist	05:21:40	-46.8	Dark	Down	32.8	111.5	Up	05:08:41 - 05:34:39	806
North Lake	05:21:40	-47.4	Dark	Down	33.4	111.7	Up	05:08:41 - 05:34:39	763
Paisley	05:21:41	-47.9	Dark	Down	33.9	111.7	Up	05:08:42 - 05:34:40	717
Klamath Falls	05:21:45	-47.4	Dark	Down	33.2	110.4	Up	05:08:46 - 05:34:44	715
Lakeview	05:21:43	-48.3	Dark	Down	34.2	111.5	Up	05:08:44 - 05:34:42	678
Cedarville	05:21:44	-48.8	Dark	Down	34.6	111.3	Up	05:08:45 - 05:34:43	629
Fall River/Burney	05:21:49	-48.2	Dark	Down	33.9	110.0	Up	05:08:50 - 05:34:48	625
Susanville	05:21:49	-49.0	Dark	Down	34.6	110.2	Up	05:08:50 - 05:34:48	562
Greenville	05:21:51	-49.0	Dark	Down	34.5	109.8	Up	05:08:52 - 05:34:50	550
Gimple	05:21:51	-49.0	Dark	Down	34.6	109.8	Up	05:08:52 - 05:34:50	548
Quincy	05:21:52	-49.1	Dark	Down	34.6	109.6	Up	05:08:53 - 05:34:51	535
Portola	05:21:51	-49.5	Dark	Down	35.0	109.9	Up	05:08:52 - 05:34:50	515
Reno	05:21:51	-50.0	Dark	Down	35.5	110.3	Up	05:08:52 - 05:34:50	479
Carson City	05:21:52	-50.2	Dark	Down	35.7	110.1	Up	05:08:53 - 05:34:51	453
Gardnerville	05:21:53	-50.4	Dark	Down	35.8	110.0	Up	05:08:54 - 05:34:52	434
Yerington	05:21:51	-50.8	Dark	Down	36.2	110.5	Up	05:08:52 - 05:34:50	422
Hawthorne	05:21:51	-51.3	Dark	Down	36.8	110.6	Up	05:08:52 - 05:34:50	374
Lee Vining	05:21:54	-51.3	Dark	Down	36.6	109.8	Up	05:08:55 - 05:34:53	345
Tonopah	05:21:50	-52.5	Dark	Down	38.0	111.4	Up	05:08:51 - 05:34:49	303
Bishop	05:21:55	-52.1	Dark	Down	37.3	110.0	Up	05:08:56 - 05:34:54	281
Beatty	05:21:52	-53.4	Dark	Down	38.7	111.0	Up	05:08:53 - 05:34:51	202
CPSLO	05:22:06	-51.4	Dark	Down	36.3	106.8	Up	05:09:07 - 05:35:05	182
Dunrhomin	05:21:13	-58.2	Dark	Down	45.1	124.5	Up	05:08:14 - 05:34:12	150
Indian Springs	05:21:51	-54.3	Dark	Down	39.6	111.6	Up	05:08:52 - 05:34:50	148
Henderson	05:21:51	-55.1	Dark	Down	40.4	111.8	Up	05:08:52 - 05:34:50	87
Wildwood	05:22:05	-53.4	Dark	Down	38.3	107.4	Up	05:09:06 - 05:35:04	32
Patrick	05:21:50	-56.2	Dark	Down	41.4	112.2	Up	05:08:51 - 05:34:49	7
Laughlin/Bullhead City	05:21:52	-55.8	Dark	Down	41.0	111.4	Up	05:08:53 - 05:34:51	7
Kingman/Dolan Springs	05:21:51	-56.2	Dark	Down	41.4	111.9	Up	05:08:52 - 05:34:50	-5
Mohave Valley	05:21:53	-56.0	Dark	Down	41.1	111.2	Up	05:08:54 - 05:34:52	-15
Idyllwild	05:22:02	-55.0	Dark	Down	39.9	108.6	Up	05:09:03 - 05:35:01	-48
Lake Havasu City	05:21:54	-56.4	Dark	Down	41.4	111.1	Up	05:08:55 - 05:34:53	-54
Parker	05:21:55	-56.6	Dark	Down	41.6	110.8	Up	05:08:56 - 05:34:54	-83
Blythe	05:21:57	-56.6	Dark	Down	41.5	110.2	Up	05:08:58 - 05:34:56	-118
Calipatria	05:22:01	-56.1	Dark	Down	41.0	109.0	Up	05:09:02 - 05:35:00	-132
George/Scottsdale	05:21:50	-58.5	Dark	Down	43.6	112.5	Up	05:08:51 - 05:34:49	-187
Yuma	05:22:00	-57.0	Dark	Down	41.8	109.4	Up	05:09:01 - 05:34:59	-193