RECON: TNO occultation with 385458

Event between (385458) 03SP317 and star GA0980:00095475 with event index number of 2374911

Geocentric closest approach at 2024/10/28 05:30:51 UTC

J2000 position of star is 01:04:38.2 +09:51:45
Equinox of date position of star is 01:05:46.7 +09:58:45
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 41.6 AU from the Sun and 40.7 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 223 seconds.
The 1-sigma cross-track error in the shadow position is 4022 km.
The sky-plane scale is 29512.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.2 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL

Star training set for 385458, (2024/10/28 05:31UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:31.0 +15:19:17  2.8 13.62 155
71Eps Psc      01:04:14.1 +08:01:23  4.3  2.02 151
PPM 144197     01:04:00.5 +09:15:56  7.2  0.87 151
PPM 144236     01:05:56.4 +09:43:07  8.8  0.28 150
385458         01:05:56.1 +09:59:42 15.3       149
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 4.0 sigma about the mid-time.
The median site spacing is 21.2 km RECON observability=1.0 and success probability=3.4%

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

Victoria 05:30:46 -43.6 Dark Down 47.9 150.1 Up 05:15:46 - 05:45:46 9529

Clarence Fulton 05:30:30 -44.5 Dark Down 47.6 156.6 Up 05:15:30 - 05:45:30 9526

Peachland 05:30:33 -44.6 Dark Down 47.9 155.8 Up 05:15:33 - 05:45:33 9505

Kelowna 05:30:32 -44.7 Dark Down 47.9 156.2 Up 05:15:32 - 05:45:32 9504

Summerland 05:30:33 -44.8 Dark Down 48.1 155.8 Up 05:15:33 - 05:45:33 9492

Penticton 05:30:33 -44.9 Dark Down 48.1 156.0 Up 05:15:33 - 05:45:33 9484

Oliver 05:30:34 -45.1 Dark Down 48.5 155.8 Up 05:15:34 - 05:45:34 9459

Anarchist Mountain Observatory 05:30:34 -45.3 Dark Down 48.7 156.0 Up 05:15:34 - 05:45:34 9442

Tonasket 05:30:35 -45.5 Dark Down 48.9 155.8 Up 05:15:35 - 05:45:35 9422

Okanogan 05:30:35 -45.6 Dark Down 49.2 155.4 Up 05:15:35 - 05:45:35 9402

Brewster 05:30:37 -45.7 Dark Down 49.4 155.0 Up 05:15:37 - 05:45:37 9389

Manson/Chelan 05:30:38 -45.7 Dark Down 49.5 154.3 Up 05:15:38 - 05:45:38 9385

Wenatchee 05:30:40 -45.9 Dark Down 49.9 153.9 Up 05:15:40 - 05:45:40 9357

Ellensburg 05:30:41 -46.0 Dark Down 50.2 153.3 Up 05:15:41 - 05:45:41 9334

Yakima 05:30:43 -46.3 Dark Down 50.5 153.1 Up 05:15:43 - 05:45:43 9305

Toppenish/White Swan 05:30:43 -46.5 Dark Down 50.8 153.2 Up 05:15:43 - 05:45:43 9283

Goldendale 05:30:45 -46.6 Dark Down 51.1 152.3 Up 05:15:45 - 05:45:45 9256

The Dalles 05:30:46 -46.5 Dark Down 51.2 151.6 Up 05:15:46 - 05:45:46 9251

Pasco 05:30:39 -47.2 Dark Down 51.3 155.0 Up 05:15:39 - 05:45:39 9234

Maupin 05:30:47 -46.9 Dark Down 51.6 151.5 Up 05:15:47 - 05:45:47 9217

PNWRO 05:30:39 -47.5 Dark Down 51.6 155.2 Up 05:15:39 - 05:45:39 9209

Sisters 05:30:51 -47.1 Dark Down 52.2 150.3 Up 05:15:51 - 05:45:51 9168

Redmond 05:30:49 -47.3 Dark Down 52.4 150.8 Up 05:15:49 - 05:45:49 9153

Bend 05:30:51 -47.4 Dark Down 52.5 150.5 Up 05:15:51 - 05:45:51 9141

Oregon Observatory 05:30:51 -47.4 Dark Down 52.6 150.2 Up 05:15:51 - 05:45:51 9133

La Pine/Gilchrist 05:30:52 -47.5 Dark Down 52.8 150.0 Up 05:15:52 - 05:45:52 9119

North Lake 05:30:51 -48.1 Dark Down 53.4 150.6 Up 05:15:51 - 05:45:51 9066

Chiloquin 05:30:56 -47.9 Dark Down 53.6 148.7 Up 05:15:56 - 05:45:56 9046

Klamath Falls 05:30:56 -48.2 Dark Down 53.9 148.6 Up 05:15:56 - 05:45:56 9017

Paisley 05:30:51 -48.6 Dark Down 54.0 150.8 Up 05:15:51 - 05:45:51 9011

Lakeview 05:30:53 -49.0 Dark Down 54.5 150.8 Up 05:15:53 - 05:45:53 8965

Fall River/Burney 05:30:57 -49.0 Dark Down 55.1 148.3 Up 05:15:57 - 05:45:57 8911

Cedarville 05:30:54 -49.5 Dark Down 55.1 150.6 Up 05:15:54 - 05:45:54 8908

Susanville 05:30:57 -49.8 Dark Down 55.9 149.0 Up 05:15:57 - 05:45:57 8836

Greenville 05:30:58 -49.8 Dark Down 56.0 148.3 Up 05:15:58 - 05:45:58 8824

Gimple 05:30:59 -49.9 Dark Down 56.1 148.5 Up 05:15:59 - 05:45:59 8821

Quincy 05:30:59 -49.9 Dark Down 56.2 148.2 Up 05:15:59 - 05:45:59 8807

Portola 05:30:58 -50.3 Dark Down 56.5 148.9 Up 05:15:58 - 05:45:58 8781

Reno 05:30:57 -50.9 Dark Down 57.0 149.7 Up 05:15:57 - 05:45:57 8736

Carson City 05:30:58 -51.1 Dark Down 57.3 149.5 Up 05:15:58 - 05:45:58 8706

Gardnerville 05:30:58 -51.2 Dark Down 57.5 149.4 Up 05:15:58 - 05:45:58 8685

Yerington 05:30:55 -51.6 Dark Down 57.7 150.4 Up 05:15:55 - 05:45:55 8668

Hawthorne 05:30:55 -52.2 Dark Down 58.3 150.9 Up 05:15:55 - 05:45:55 8611

Lee Vining 05:30:58 -52.2 Dark Down 58.6 149.6 Up 05:15:58 - 05:45:58 8582

Tonopah 05:30:52 -53.4 Dark Down 59.3 153.0 Up 05:15:52 - 05:45:52 8521

Bishop 05:30:57 -53.0 Dark Down 59.4 150.4 Up 05:15:57 - 05:45:57 8505

CPSLO 05:31:09 -52.4 Dark Down 60.2 144.6 Up 05:16:09 - 05:46:09 8413

Beatty 05:30:53 -54.3 Dark Down 60.5 153.0 Up 05:15:53 - 05:45:53 8406

Indian Springs 05:30:50 -55.2 Dark Down 61.1 154.7 Up 05:15:50 - 05:45:50 8339

Dunrhomin 05:30:09 -58.5 Dark Down 59.6 176.6 Up 05:15:09 - 05:45:09 8296

Henderson 05:30:49 -56.0 Dark Down 61.9 155.7 Up 05:15:49 - 05:45:49 8268

Wildwood 05:31:05 -54.5 Dark Down 62.2 147.1 Up 05:16:05 - 05:46:05 8232

Laughlin/Bullhead City 05:30:49 -56.7 Dark Down 62.8 155.8 Up 05:15:49 - 05:45:49 8176

Patrick 05:30:46 -57.1 Dark Down 62.8 157.4 Up 05:15:46 - 05:45:46 8172

Kingman/Dolan Springs 05:30:47 -57.1 Dark Down 62.9 156.9 Up 05:15:47 - 05:45:47 8159

Mohave Valley 05:30:49 -56.9 Dark Down 63.0 155.6 Up 05:15:49 - 05:45:49 8152

Idyllwild 05:30:59 -56.0 Dark Down 63.3 150.3 Up 05:15:59 - 05:45:59 8130

Lake Havasu City 05:30:50 -57.3 Dark Down 63.5 155.8 Up 05:15:50 - 05:45:50 8107

Parker 05:30:51 -57.5 Dark Down 63.8 155.6 Up 05:15:51 - 05:45:51 8075

Blythe 05:30:53 -57.6 Dark Down 64.2 154.5 Up 05:15:53 - 05:45:53 8039

Calipatria 05:30:57 -57.2 Dark Down 64.3 152.1 Up 05:15:57 - 05:45:57 8030

Yuma 05:30:54 -58.0 Dark Down 65.0 153.6 Up 05:15:54 - 05:45:54 7958

George/Scottsdale 05:30:43 -59.4 Dark Down 65.0 160.4 Up 05:15:43 - 05:45:43 7947

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 385458, (2024/10/28 05:31UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8 13.62 155
71Eps Psc      01:02:56.5 +07:53:25  4.3  2.02 151
PPM 144197     01:02:42.7 +09:07:58  7.2  0.87 151
PPM 144236     01:04:38.5 +09:35:09  8.8  0.28 150
385458         01:04:38.2 +09:51:45 15.3       150
Positions are for J2000

Event circumstances last updated at 2021/10/30 23:07:31 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	05:30:46	-43.6	Dark	Down	47.9	150.1	Up	05:15:46 - 05:45:46	9529
Clarence Fulton	05:30:30	-44.5	Dark	Down	47.6	156.6	Up	05:15:30 - 05:45:30	9526
Peachland	05:30:33	-44.6	Dark	Down	47.9	155.8	Up	05:15:33 - 05:45:33	9505
Kelowna	05:30:32	-44.7	Dark	Down	47.9	156.2	Up	05:15:32 - 05:45:32	9504
Summerland	05:30:33	-44.8	Dark	Down	48.1	155.8	Up	05:15:33 - 05:45:33	9492
Penticton	05:30:33	-44.9	Dark	Down	48.1	156.0	Up	05:15:33 - 05:45:33	9484
Oliver	05:30:34	-45.1	Dark	Down	48.5	155.8	Up	05:15:34 - 05:45:34	9459
Anarchist Mountain Observatory	05:30:34	-45.3	Dark	Down	48.7	156.0	Up	05:15:34 - 05:45:34	9442
Tonasket	05:30:35	-45.5	Dark	Down	48.9	155.8	Up	05:15:35 - 05:45:35	9422
Okanogan	05:30:35	-45.6	Dark	Down	49.2	155.4	Up	05:15:35 - 05:45:35	9402
Brewster	05:30:37	-45.7	Dark	Down	49.4	155.0	Up	05:15:37 - 05:45:37	9389
Manson/Chelan	05:30:38	-45.7	Dark	Down	49.5	154.3	Up	05:15:38 - 05:45:38	9385
Wenatchee	05:30:40	-45.9	Dark	Down	49.9	153.9	Up	05:15:40 - 05:45:40	9357
Ellensburg	05:30:41	-46.0	Dark	Down	50.2	153.3	Up	05:15:41 - 05:45:41	9334
Yakima	05:30:43	-46.3	Dark	Down	50.5	153.1	Up	05:15:43 - 05:45:43	9305
Toppenish/White Swan	05:30:43	-46.5	Dark	Down	50.8	153.2	Up	05:15:43 - 05:45:43	9283
Goldendale	05:30:45	-46.6	Dark	Down	51.1	152.3	Up	05:15:45 - 05:45:45	9256
The Dalles	05:30:46	-46.5	Dark	Down	51.2	151.6	Up	05:15:46 - 05:45:46	9251
Pasco	05:30:39	-47.2	Dark	Down	51.3	155.0	Up	05:15:39 - 05:45:39	9234
Maupin	05:30:47	-46.9	Dark	Down	51.6	151.5	Up	05:15:47 - 05:45:47	9217
PNWRO	05:30:39	-47.5	Dark	Down	51.6	155.2	Up	05:15:39 - 05:45:39	9209
Sisters	05:30:51	-47.1	Dark	Down	52.2	150.3	Up	05:15:51 - 05:45:51	9168
Redmond	05:30:49	-47.3	Dark	Down	52.4	150.8	Up	05:15:49 - 05:45:49	9153
Bend	05:30:51	-47.4	Dark	Down	52.5	150.5	Up	05:15:51 - 05:45:51	9141
Oregon Observatory	05:30:51	-47.4	Dark	Down	52.6	150.2	Up	05:15:51 - 05:45:51	9133
La Pine/Gilchrist	05:30:52	-47.5	Dark	Down	52.8	150.0	Up	05:15:52 - 05:45:52	9119
North Lake	05:30:51	-48.1	Dark	Down	53.4	150.6	Up	05:15:51 - 05:45:51	9066
Chiloquin	05:30:56	-47.9	Dark	Down	53.6	148.7	Up	05:15:56 - 05:45:56	9046
Klamath Falls	05:30:56	-48.2	Dark	Down	53.9	148.6	Up	05:15:56 - 05:45:56	9017
Paisley	05:30:51	-48.6	Dark	Down	54.0	150.8	Up	05:15:51 - 05:45:51	9011
Lakeview	05:30:53	-49.0	Dark	Down	54.5	150.8	Up	05:15:53 - 05:45:53	8965
Fall River/Burney	05:30:57	-49.0	Dark	Down	55.1	148.3	Up	05:15:57 - 05:45:57	8911
Cedarville	05:30:54	-49.5	Dark	Down	55.1	150.6	Up	05:15:54 - 05:45:54	8908
Susanville	05:30:57	-49.8	Dark	Down	55.9	149.0	Up	05:15:57 - 05:45:57	8836
Greenville	05:30:58	-49.8	Dark	Down	56.0	148.3	Up	05:15:58 - 05:45:58	8824
Gimple	05:30:59	-49.9	Dark	Down	56.1	148.5	Up	05:15:59 - 05:45:59	8821
Quincy	05:30:59	-49.9	Dark	Down	56.2	148.2	Up	05:15:59 - 05:45:59	8807
Portola	05:30:58	-50.3	Dark	Down	56.5	148.9	Up	05:15:58 - 05:45:58	8781
Reno	05:30:57	-50.9	Dark	Down	57.0	149.7	Up	05:15:57 - 05:45:57	8736
Carson City	05:30:58	-51.1	Dark	Down	57.3	149.5	Up	05:15:58 - 05:45:58	8706
Gardnerville	05:30:58	-51.2	Dark	Down	57.5	149.4	Up	05:15:58 - 05:45:58	8685
Yerington	05:30:55	-51.6	Dark	Down	57.7	150.4	Up	05:15:55 - 05:45:55	8668
Hawthorne	05:30:55	-52.2	Dark	Down	58.3	150.9	Up	05:15:55 - 05:45:55	8611
Lee Vining	05:30:58	-52.2	Dark	Down	58.6	149.6	Up	05:15:58 - 05:45:58	8582
Tonopah	05:30:52	-53.4	Dark	Down	59.3	153.0	Up	05:15:52 - 05:45:52	8521
Bishop	05:30:57	-53.0	Dark	Down	59.4	150.4	Up	05:15:57 - 05:45:57	8505
CPSLO	05:31:09	-52.4	Dark	Down	60.2	144.6	Up	05:16:09 - 05:46:09	8413
Beatty	05:30:53	-54.3	Dark	Down	60.5	153.0	Up	05:15:53 - 05:45:53	8406
Indian Springs	05:30:50	-55.2	Dark	Down	61.1	154.7	Up	05:15:50 - 05:45:50	8339
Dunrhomin	05:30:09	-58.5	Dark	Down	59.6	176.6	Up	05:15:09 - 05:45:09	8296
Henderson	05:30:49	-56.0	Dark	Down	61.9	155.7	Up	05:15:49 - 05:45:49	8268
Wildwood	05:31:05	-54.5	Dark	Down	62.2	147.1	Up	05:16:05 - 05:46:05	8232
Laughlin/Bullhead City	05:30:49	-56.7	Dark	Down	62.8	155.8	Up	05:15:49 - 05:45:49	8176
Patrick	05:30:46	-57.1	Dark	Down	62.8	157.4	Up	05:15:46 - 05:45:46	8172
Kingman/Dolan Springs	05:30:47	-57.1	Dark	Down	62.9	156.9	Up	05:15:47 - 05:45:47	8159
Mohave Valley	05:30:49	-56.9	Dark	Down	63.0	155.6	Up	05:15:49 - 05:45:49	8152
Idyllwild	05:30:59	-56.0	Dark	Down	63.3	150.3	Up	05:15:59 - 05:45:59	8130
Lake Havasu City	05:30:50	-57.3	Dark	Down	63.5	155.8	Up	05:15:50 - 05:45:50	8107
Parker	05:30:51	-57.5	Dark	Down	63.8	155.6	Up	05:15:51 - 05:45:51	8075
Blythe	05:30:53	-57.6	Dark	Down	64.2	154.5	Up	05:15:53 - 05:45:53	8039
Calipatria	05:30:57	-57.2	Dark	Down	64.3	152.1	Up	05:15:57 - 05:45:57	8030
Yuma	05:30:54	-58.0	Dark	Down	65.0	153.6	Up	05:15:54 - 05:45:54	7958
George/Scottsdale	05:30:43	-59.4	Dark	Down	65.0	160.4	Up	05:15:43 - 05:45:43	7947