RECON: TNO occultation with 535167

Event between (535167) 14XT40 and star GA1080:00592500 with event index number of 1617425

Geocentric closest approach at 2023/11/10 04:42:34 UTC

J2000 position of star is 04:32:31.0 +18:41:53
Equinox of date position of star is 04:33:44.8 +18:44:30
Stellar brightness G=10.8, use SENSEUP=4 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 121 degrees from the moon. Moon is 10% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 32.6 AU from the Sun and 31.7 AU from the Earth.
The TNO is moving 22.5 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 414 seconds.
The 1-sigma cross-track error in the shadow position is 1686 km.
The sky-plane scale is 23001.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.3 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E

Star training set for 535167, (2023/11/10 04:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.5 +16:33:20  0.8  2.34 121
3Iot Aur       04:58:33.1 +33:12:06  2.7 15.47 113
PPM 120015     04:34:56.0 +18:03:55  6.3  0.72 121
PPM 120041     04:36:16.0 +18:27:40  8.3  0.63 121
PPM 120027     04:35:34.6 +18:46:06 11.0  0.40 121
535167         04:33:54.4 +18:44:50 10.8       121
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 2.2 sigma about the mid-time.
The median site spacing is 19.0 km RECON observability=1.0 and success probability=22.1%

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

Victoria 04:44:53 -40.0 Dark Down 26.2 91.0 Low 04:29:53 - 04:59:53 1669

Clarence Fulton 04:44:43 -41.7 Dark Down 28.8 95.1 Low 04:29:43 - 04:59:43 1666

Peachland 04:44:45 -41.6 Dark Down 28.5 94.5 Low 04:29:45 - 04:59:45 1647

Kelowna 04:44:44 -41.7 Dark Down 28.7 94.7 Low 04:29:44 - 04:59:44 1646

Summerland 04:44:46 -41.7 Dark Down 28.6 94.4 Low 04:29:46 - 04:59:46 1636

Penticton 04:44:46 -41.8 Dark Down 28.7 94.5 Low 04:29:46 - 04:59:46 1629

Oliver 04:44:47 -42.0 Dark Down 28.7 94.3 Low 04:29:47 - 04:59:47 1607

Anarchist Mountain Observatory 04:44:48 -42.2 Dark Down 28.9 94.4 Low 04:29:48 - 04:59:48 1591

Tonasket 04:44:49 -42.3 Dark Down 28.8 94.2 Low 04:29:49 - 04:59:49 1573

Okanogan 04:44:51 -42.3 Dark Down 28.8 93.9 Low 04:29:51 - 04:59:51 1556

Brewster 04:44:52 -42.3 Dark Down 28.7 93.6 Low 04:29:52 - 04:59:52 1544

Manson/Chelan 04:44:53 -42.2 Dark Down 28.4 93.2 Low 04:29:53 - 04:59:53 1541

Wenatchee 04:44:55 -42.3 Dark Down 28.3 92.8 Low 04:29:55 - 04:59:55 1515

Ellensburg 04:44:57 -42.3 Dark Down 28.2 92.4 Low 04:29:57 - 04:59:57 1495

Yakima 04:44:59 -42.5 Dark Down 28.2 92.2 Low 04:29:59 - 04:59:59 1469

Toppenish/White Swan 04:44:59 -42.7 Dark Down 28.4 92.2 Low 04:29:59 - 04:59:59 1450

Goldendale 04:45:02 -42.6 Dark Down 28.1 91.6 Low 04:30:02 - 05:00:02 1425

The Dalles 04:45:03 -42.5 Dark Down 27.8 91.2 Low 04:30:03 - 05:00:03 1421

Pasco 04:44:59 -43.5 Dark Down 29.2 93.1 Low 04:29:59 - 04:59:59 1406

Maupin 04:45:05 -42.7 Dark Down 27.9 91.1 Low 04:30:05 - 05:00:05 1390

PNWRO 04:44:59 -43.8 Dark Down 29.4 93.1 Low 04:29:59 - 04:59:59 1383

Sisters 04:45:09 -42.7 Dark Down 27.6 90.3 Low 04:30:09 - 05:00:09 1345

Redmond 04:45:08 -43.0 Dark Down 27.9 90.5 Low 04:30:08 - 05:00:08 1332

Bend 04:45:09 -42.9 Dark Down 27.8 90.3 Low 04:30:09 - 05:00:09 1321

Oregon Observatory 04:45:10 -42.9 Dark Down 27.7 90.1 Low 04:30:10 - 05:00:10 1313

La Pine/Gilchrist 04:45:11 -43.0 Dark Down 27.7 90.0 Low 04:30:11 - 05:00:11 1301

North Lake 04:45:12 -43.5 Dark Down 28.1 90.2 Low 04:30:12 - 05:00:12 1253

Chiloquin 04:45:16 -43.1 Dark Down 27.4 89.2 Low 04:30:16 - 05:00:16 1234

Klamath Falls 04:45:17 -43.2 Dark Down 27.5 89.1 Low 04:30:17 - 05:00:17 1207

Paisley 04:45:14 -44.0 Dark Down 28.4 90.1 Low 04:30:14 - 05:00:14 1203

Lakeview 04:45:15 -44.3 Dark Down 28.5 90.0 Low 04:30:15 - 05:00:15 1162

Fall River/Burney 04:45:21 -43.9 Dark Down 27.7 88.7 Low 04:30:21 - 05:00:21 1111

Cedarville 04:45:18 -44.6 Dark Down 28.7 89.8 Low 04:30:18 - 05:00:18 1109

Susanville 04:45:23 -44.6 Dark Down 28.3 88.9 Low 04:30:23 - 05:00:23 1042

Greenville 04:45:24 -44.5 Dark Down 28.1 88.5 Low 04:30:24 - 05:00:24 1031

Gimple 04:45:24 -44.6 Dark Down 28.1 88.6 Low 04:30:24 - 05:00:24 1028

Quincy 04:45:25 -44.6 Dark Down 28.1 88.4 Low 04:30:25 - 05:00:25 1016

Portola 04:45:25 -44.9 Dark Down 28.4 88.7 Low 04:30:25 - 05:00:25 992

Reno 04:45:25 -45.5 Dark Down 28.9 88.9 Low 04:30:25 - 05:00:25 951

Carson City 04:45:26 -45.6 Dark Down 28.9 88.7 Low 04:30:26 - 05:00:26 924

Gardnerville 04:45:27 -45.7 Dark Down 29.0 88.6 Low 04:30:27 - 05:00:27 904

Yerington 04:45:26 -46.2 Dark Down 29.4 89.0 Low 04:30:26 - 05:00:26 889

Hawthorne 04:45:27 -46.7 Dark Down 29.8 89.1 Low 04:30:27 - 05:00:27 836

Lee Vining 04:45:30 -46.5 Dark Down 29.4 88.5 Low 04:30:30 - 05:00:30 809

Tonopah 04:45:27 -47.9 Dark Down 30.9 89.7 Up 04:30:27 - 05:00:27 755

Bishop 04:45:31 -47.2 Dark Down 30.0 88.6 Up 04:30:31 - 05:00:31 738

CPSLO 04:45:41 -46.0 Dark Down 28.1 86.2 Low 04:30:41 - 05:00:41 649

Beatty 04:45:30 -48.6 Dark Down 31.3 89.3 Up 04:30:30 - 05:00:30 648

Indian Springs 04:45:30 -49.5 Dark Down 32.2 89.7 Up 04:30:30 - 05:00:30 586

Dunrhomin 04:44:59 -55.3 Dark Down 40.0 99.3 Up 04:29:59 - 04:59:59 544

Henderson 04:45:30 -50.2 Dark Down 32.7 89.8 Up 04:30:30 - 05:00:30 520

Wildwood 04:45:42 -47.9 Dark Down 29.7 86.6 Low 04:30:42 - 05:00:42 483

Laughlin/Bullhead City 04:45:33 -50.8 Dark Down 33.1 89.5 Up 04:30:33 - 05:00:33 435

Patrick 04:45:31 -51.3 Dark Down 33.6 90.0 Up 04:30:31 - 05:00:31 431

Kingman/Dolan Springs 04:45:32 -51.2 Dark Down 33.5 89.8 Up 04:30:32 - 05:00:32 419

Mohave Valley 04:45:33 -50.9 Dark Down 33.1 89.3 Up 04:30:33 - 05:00:33 412

Idyllwild 04:45:41 -49.5 Dark Down 31.3 87.4 Up 04:30:41 - 05:00:41 389

Lake Havasu City 04:45:34 -51.2 Dark Down 33.3 89.2 Up 04:30:34 - 05:00:34 370

Parker 04:45:35 -51.3 Dark Down 33.3 89.0 Up 04:30:35 - 05:00:35 340

Blythe 04:45:37 -51.2 Dark Down 33.0 88.5 Up 04:30:37 - 05:00:37 306

Calipatria 04:45:41 -50.6 Dark Down 32.2 87.7 Up 04:30:41 - 05:00:41 297

Yuma 04:45:41 -51.5 Dark Down 33.0 87.8 Up 04:30:41 - 05:00:41 229

George/Scottsdale 04:45:33 -53.4 Dark Down 35.3 90.0 Up 04:30:33 - 05:00:33 221

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 535167, (2023/11/10 04:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  2.34 121
3Iot Aur       04:56:59.6 +33:09:58  2.7 15.47 113
PPM 120015     04:33:33.0 +18:01:00  6.3  0.72 121
PPM 120041     04:34:52.7 +18:24:48  8.3  0.63 121
PPM 120027     04:34:11.2 +18:43:12 11.0  0.40 121
535167         04:32:31.0 +18:41:53 10.8       121
Positions are for J2000

Event circumstances last updated at 2021/02/13 20:59:03 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)
Victoria	04:44:53	-40.0	Dark	Down	26.2	91.0	Low	04:29:53 - 04:59:53	1669
Clarence Fulton	04:44:43	-41.7	Dark	Down	28.8	95.1	Low	04:29:43 - 04:59:43	1666
Peachland	04:44:45	-41.6	Dark	Down	28.5	94.5	Low	04:29:45 - 04:59:45	1647
Kelowna	04:44:44	-41.7	Dark	Down	28.7	94.7	Low	04:29:44 - 04:59:44	1646
Summerland	04:44:46	-41.7	Dark	Down	28.6	94.4	Low	04:29:46 - 04:59:46	1636
Penticton	04:44:46	-41.8	Dark	Down	28.7	94.5	Low	04:29:46 - 04:59:46	1629
Oliver	04:44:47	-42.0	Dark	Down	28.7	94.3	Low	04:29:47 - 04:59:47	1607
Anarchist Mountain Observatory	04:44:48	-42.2	Dark	Down	28.9	94.4	Low	04:29:48 - 04:59:48	1591
Tonasket	04:44:49	-42.3	Dark	Down	28.8	94.2	Low	04:29:49 - 04:59:49	1573
Okanogan	04:44:51	-42.3	Dark	Down	28.8	93.9	Low	04:29:51 - 04:59:51	1556
Brewster	04:44:52	-42.3	Dark	Down	28.7	93.6	Low	04:29:52 - 04:59:52	1544
Manson/Chelan	04:44:53	-42.2	Dark	Down	28.4	93.2	Low	04:29:53 - 04:59:53	1541
Wenatchee	04:44:55	-42.3	Dark	Down	28.3	92.8	Low	04:29:55 - 04:59:55	1515
Ellensburg	04:44:57	-42.3	Dark	Down	28.2	92.4	Low	04:29:57 - 04:59:57	1495
Yakima	04:44:59	-42.5	Dark	Down	28.2	92.2	Low	04:29:59 - 04:59:59	1469
Toppenish/White Swan	04:44:59	-42.7	Dark	Down	28.4	92.2	Low	04:29:59 - 04:59:59	1450
Goldendale	04:45:02	-42.6	Dark	Down	28.1	91.6	Low	04:30:02 - 05:00:02	1425
The Dalles	04:45:03	-42.5	Dark	Down	27.8	91.2	Low	04:30:03 - 05:00:03	1421
Pasco	04:44:59	-43.5	Dark	Down	29.2	93.1	Low	04:29:59 - 04:59:59	1406
Maupin	04:45:05	-42.7	Dark	Down	27.9	91.1	Low	04:30:05 - 05:00:05	1390
PNWRO	04:44:59	-43.8	Dark	Down	29.4	93.1	Low	04:29:59 - 04:59:59	1383
Sisters	04:45:09	-42.7	Dark	Down	27.6	90.3	Low	04:30:09 - 05:00:09	1345
Redmond	04:45:08	-43.0	Dark	Down	27.9	90.5	Low	04:30:08 - 05:00:08	1332
Bend	04:45:09	-42.9	Dark	Down	27.8	90.3	Low	04:30:09 - 05:00:09	1321
Oregon Observatory	04:45:10	-42.9	Dark	Down	27.7	90.1	Low	04:30:10 - 05:00:10	1313
La Pine/Gilchrist	04:45:11	-43.0	Dark	Down	27.7	90.0	Low	04:30:11 - 05:00:11	1301
North Lake	04:45:12	-43.5	Dark	Down	28.1	90.2	Low	04:30:12 - 05:00:12	1253
Chiloquin	04:45:16	-43.1	Dark	Down	27.4	89.2	Low	04:30:16 - 05:00:16	1234
Klamath Falls	04:45:17	-43.2	Dark	Down	27.5	89.1	Low	04:30:17 - 05:00:17	1207
Paisley	04:45:14	-44.0	Dark	Down	28.4	90.1	Low	04:30:14 - 05:00:14	1203
Lakeview	04:45:15	-44.3	Dark	Down	28.5	90.0	Low	04:30:15 - 05:00:15	1162
Fall River/Burney	04:45:21	-43.9	Dark	Down	27.7	88.7	Low	04:30:21 - 05:00:21	1111
Cedarville	04:45:18	-44.6	Dark	Down	28.7	89.8	Low	04:30:18 - 05:00:18	1109
Susanville	04:45:23	-44.6	Dark	Down	28.3	88.9	Low	04:30:23 - 05:00:23	1042
Greenville	04:45:24	-44.5	Dark	Down	28.1	88.5	Low	04:30:24 - 05:00:24	1031
Gimple	04:45:24	-44.6	Dark	Down	28.1	88.6	Low	04:30:24 - 05:00:24	1028
Quincy	04:45:25	-44.6	Dark	Down	28.1	88.4	Low	04:30:25 - 05:00:25	1016
Portola	04:45:25	-44.9	Dark	Down	28.4	88.7	Low	04:30:25 - 05:00:25	992
Reno	04:45:25	-45.5	Dark	Down	28.9	88.9	Low	04:30:25 - 05:00:25	951
Carson City	04:45:26	-45.6	Dark	Down	28.9	88.7	Low	04:30:26 - 05:00:26	924
Gardnerville	04:45:27	-45.7	Dark	Down	29.0	88.6	Low	04:30:27 - 05:00:27	904
Yerington	04:45:26	-46.2	Dark	Down	29.4	89.0	Low	04:30:26 - 05:00:26	889
Hawthorne	04:45:27	-46.7	Dark	Down	29.8	89.1	Low	04:30:27 - 05:00:27	836
Lee Vining	04:45:30	-46.5	Dark	Down	29.4	88.5	Low	04:30:30 - 05:00:30	809
Tonopah	04:45:27	-47.9	Dark	Down	30.9	89.7	Up	04:30:27 - 05:00:27	755
Bishop	04:45:31	-47.2	Dark	Down	30.0	88.6	Up	04:30:31 - 05:00:31	738
CPSLO	04:45:41	-46.0	Dark	Down	28.1	86.2	Low	04:30:41 - 05:00:41	649
Beatty	04:45:30	-48.6	Dark	Down	31.3	89.3	Up	04:30:30 - 05:00:30	648
Indian Springs	04:45:30	-49.5	Dark	Down	32.2	89.7	Up	04:30:30 - 05:00:30	586
Dunrhomin	04:44:59	-55.3	Dark	Down	40.0	99.3	Up	04:29:59 - 04:59:59	544
Henderson	04:45:30	-50.2	Dark	Down	32.7	89.8	Up	04:30:30 - 05:00:30	520
Wildwood	04:45:42	-47.9	Dark	Down	29.7	86.6	Low	04:30:42 - 05:00:42	483
Laughlin/Bullhead City	04:45:33	-50.8	Dark	Down	33.1	89.5	Up	04:30:33 - 05:00:33	435
Patrick	04:45:31	-51.3	Dark	Down	33.6	90.0	Up	04:30:31 - 05:00:31	431
Kingman/Dolan Springs	04:45:32	-51.2	Dark	Down	33.5	89.8	Up	04:30:32 - 05:00:32	419
Mohave Valley	04:45:33	-50.9	Dark	Down	33.1	89.3	Up	04:30:33 - 05:00:33	412
Idyllwild	04:45:41	-49.5	Dark	Down	31.3	87.4	Up	04:30:41 - 05:00:41	389
Lake Havasu City	04:45:34	-51.2	Dark	Down	33.3	89.2	Up	04:30:34 - 05:00:34	370
Parker	04:45:35	-51.3	Dark	Down	33.3	89.0	Up	04:30:35 - 05:00:35	340
Blythe	04:45:37	-51.2	Dark	Down	33.0	88.5	Up	04:30:37 - 05:00:37	306
Calipatria	04:45:41	-50.6	Dark	Down	32.2	87.7	Up	04:30:41 - 05:00:41	297
Yuma	04:45:41	-51.5	Dark	Down	33.0	87.8	Up	04:30:41 - 05:00:41	229
George/Scottsdale	04:45:33	-53.4	Dark	Down	35.3	90.0	Up	04:30:33 - 05:00:33	221