RECON: TNO occultation with 07LJ38

Event between 07LJ38 and star GA0860:09226780 with event index number of 1702359

Geocentric closest approach at 2027/06/07 07:13:01 UTC

J2000 position of star is 18:42:34.8 -02:13:27
Equinox of date position of star is 18:43:38.3 -02:12:11
Stellar brightness G=14.0, use SENSEUP=64
Star is 156 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=26.0

[RECON map]
TNO is 39.2 AU from the Sun and 38.3 AU from the Earth.
The TNO is moving 21.4 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 609 seconds.
The 1-sigma cross-track error in the shadow position is 5055 km.
The sky-plane scale is 27775.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=206.1 km assuming a 5% albedo -- 2.8 sec chord
Diameter=84.1 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATNEAR

Star training set for 07LJ38, (2027/06/07 07:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:05.6 -26:29:25  0.9 40.07 139
60Bet Oph      17:44:49.7 +04:33:28  2.8 16.25 141
5 Aql          18:47:53.6 -00:55:49  6.2  1.59 155
PPM 202087     18:45:48.2 -02:27:33  8.2  0.52 156
PPM 202043     18:43:41.0 -02:18:00  9.6  0.13 156
07LJ38         18:44:00.5 -02:11:44 14.0       156
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 1.5 sigma about the mid-time.
The median site spacing is 18.4 km RECON observability=1.0 and success probability=5.2%

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 07:14:58 -16.4 AT Down 29.3 138.0 Low 06:59:58 - 07:29:58 7264

Kelowna 07:14:59 -16.8 AT Down 29.5 137.7 Low 06:59:59 - 07:29:59 7237

Peachland 07:15:00 -16.9 AT Down 29.4 137.4 Low 07:00:00 - 07:30:00 7228

Summerland 07:15:00 -17.0 AT Down 29.6 137.4 Low 07:00:00 - 07:30:00 7218

Penticton 07:15:00 -17.1 AT Down 29.7 137.5 Low 07:00:00 - 07:30:00 7214

Oliver 07:15:01 -17.5 AT Down 29.9 137.3 Low 07:00:01 - 07:30:01 7189

Anarchist Mountain Observatory 07:15:01 -17.7 AT Down 30.2 137.5 Up 07:00:01 - 07:30:01 7178

Tonasket 07:15:02 -18.0 AT Down 30.4 137.3 Up 07:00:02 - 07:30:02 7155

Victoria 07:15:13 -17.6 AT Down 28.7 133.2 Low 07:00:13 - 07:30:13 7131

Okanogan 07:15:03 -18.3 Dark Down 30.5 137.0 Up 07:00:03 - 07:30:03 7130

Brewster 07:15:04 -18.5 Dark Down 30.6 136.7 Up 07:00:04 - 07:30:04 7110

Manson/Chelan 07:15:06 -18.7 Dark Down 30.6 136.2 Up 07:00:06 - 07:30:06 7094

Entiat 07:15:06 -18.9 Dark Down 30.8 136.1 Up 07:00:06 - 07:30:06 7077

Wenatchee 07:15:07 -19.1 Dark Down 30.9 135.9 Up 07:00:07 - 07:30:07 7059

Ellensburg 07:15:09 -19.5 Dark Down 31.1 135.5 Up 07:00:09 - 07:30:09 7027

Yakima 07:15:10 -19.9 Dark Down 31.4 135.3 Up 07:00:10 - 07:30:10 6997

Toppenish/White Swan 07:15:09 -20.1 Dark Down 31.6 135.4 Up 07:00:09 - 07:30:09 6981

Pasco 07:15:06 -20.4 Dark Down 32.3 136.6 Up 07:00:06 - 07:30:06 6976

PNWRO 07:15:06 -20.7 Dark Down 32.6 136.7 Up 07:00:06 - 07:30:06 6958

Goldendale 07:15:12 -20.6 Dark Down 31.8 134.7 Up 07:00:12 - 07:30:12 6939

The Dalles 07:15:14 -20.8 Dark Down 31.8 134.2 Up 07:00:14 - 07:30:14 6920

Maupin 07:15:14 -21.2 Dark Down 32.1 134.2 Up 07:00:14 - 07:30:14 6889

Sisters 07:15:17 -22.0 Dark Down 32.5 133.3 Up 07:00:17 - 07:30:17 6819

Redmond 07:15:16 -22.1 Dark Down 32.7 133.7 Up 07:00:16 - 07:30:16 6819

Bend 07:15:17 -22.3 Dark Down 32.8 133.4 Up 07:00:17 - 07:30:17 6802

Oregon Observatory 07:15:18 -22.4 Dark Down 32.8 133.2 Up 07:00:18 - 07:30:18 6788

La Pine/Gilchrist 07:15:18 -22.6 Dark Down 32.9 133.1 Up 07:00:18 - 07:30:18 6771

North Lake 07:15:18 -23.1 Dark Down 33.6 133.5 Up 07:00:18 - 07:30:18 6739

Paisley 07:15:18 -23.7 Dark Down 34.1 133.6 Up 07:00:18 - 07:30:18 6696

Lakeview 07:15:18 -24.3 Dark Down 34.6 133.5 Up 07:00:18 - 07:30:18 6656

Klamath Falls 07:15:22 -24.0 Dark Down 33.8 132.1 Up 07:00:22 - 07:30:22 6654

Cedarville 07:15:19 -24.9 Dark Down 35.1 133.4 Up 07:00:19 - 07:30:19 6603

Fall River/Burney 07:15:24 -25.2 Dark Down 34.8 131.9 Up 07:00:24 - 07:30:24 6559

Niwot 07:14:31 -27.1 Dark Down 43.2 149.5 Up 06:59:31 - 07:29:31 6530

SwRI 07:14:31 -27.2 Dark Down 43.3 149.3 Up 06:59:31 - 07:29:31 6521

Susanville 07:15:23 -25.9 Dark Down 35.6 132.3 Up 07:00:23 - 07:30:23 6510

Gimple 07:15:24 -26.2 Dark Down 35.7 131.9 Up 07:00:24 - 07:30:24 6486

Greenville 07:15:24 -26.2 Dark Down 35.6 131.9 Up 07:00:24 - 07:30:24 6486

Quincy 07:15:24 -26.4 Dark Down 35.8 131.8 Up 07:00:24 - 07:30:24 6469

Portola 07:15:23 -26.6 Dark Down 36.1 132.2 Up 07:00:23 - 07:30:23 6460

Reno 07:15:22 -26.9 Dark Down 36.7 132.7 Up 07:00:22 - 07:30:22 6440

Carson City 07:15:22 -27.3 Dark Down 36.9 132.5 Up 07:00:22 - 07:30:22 6410

Yerington 07:15:20 -27.6 Dark Down 37.4 133.0 Up 07:00:20 - 07:30:20 6395

Gardnerville 07:15:22 -27.5 Dark Down 37.1 132.4 Up 07:00:22 - 07:30:22 6389

Hawthorne 07:15:20 -28.1 Dark Down 38.1 133.3 Up 07:00:20 - 07:30:20 6357

Tonopah 07:15:16 -28.7 Dark Down 39.2 134.5 Up 07:00:16 - 07:30:16 6322

Lee Vining 07:15:22 -28.6 Dark Down 38.2 132.5 Up 07:00:22 - 07:30:22 6308

Bishop 07:15:21 -29.3 Dark Down 39.0 132.9 Up 07:00:21 - 07:30:21 6258

Beatty 07:15:16 -29.9 Dark Down 40.2 134.3 Up 07:00:16 - 07:30:16 6223

Indian Springs 07:15:13 -30.4 Dark Down 41.1 135.3 Up 07:00:13 - 07:30:13 6198

Henderson 07:15:11 -31.0 Dark Down 41.8 135.7 Up 07:00:11 - 07:30:11 6153

Searchlight/Boulder City 07:15:12 -31.5 Dark Down 42.3 135.4 Up 07:00:12 - 07:30:12 6102

Patrick 07:15:08 -31.7 Dark Down 42.9 136.6 Up 07:00:08 - 07:30:08 6101

Kingman/Dolan Springs 07:15:09 -31.9 Dark Down 43.0 136.2 Up 07:00:09 - 07:30:09 6081

Laughlin/Bullhead City 07:15:11 -31.9 Dark Down 42.7 135.6 Up 07:00:11 - 07:30:11 6076

DCO 07:15:06 -32.0 Dark Down 43.5 137.2 Up 07:00:06 - 07:30:06 6076

CPSLO 07:15:32 -30.9 Dark Down 39.0 129.4 Up 07:00:32 - 07:30:32 6068

Mohave Valley 07:15:11 -32.1 Dark Down 42.9 135.5 Up 07:00:11 - 07:30:11 6052

Lake Havasu City 07:15:11 -32.6 Dark Down 43.3 135.5 Up 07:00:11 - 07:30:11 6017

Parker 07:15:12 -32.9 Dark Down 43.6 135.3 Up 07:00:12 - 07:30:12 5985

Wildwood 07:15:27 -32.5 Dark Down 41.1 130.7 Up 07:00:27 - 07:30:27 5967

George/Scottsdale 07:15:03 -33.5 Dark Down 45.3 137.7 Up 07:00:03 - 07:30:03 5955

Idyllwild 07:15:21 -33.1 Dark Down 42.5 132.4 Up 07:00:21 - 07:30:21 5941

Blythe 07:15:13 -33.4 Dark Down 43.8 134.6 Up 07:00:13 - 07:30:13 5937

Calipatria 07:15:18 -33.8 Dark Down 43.6 133.2 Up 07:00:18 - 07:30:18 5889

Yuma 07:15:15 -34.3 Dark Down 44.4 133.9 Up 07:00:15 - 07:30:15 5852

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 07LJ38, (2027/06/07 07:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 40.07 139
60Bet Oph      17:43:28.3 +04:34:05  2.8 16.25 141
5 Aql          18:46:28.6 -00:57:42  6.2  1.59 155
PPM 202087     18:44:22.3 -02:29:21  8.2  0.52 156
PPM 202043     18:42:15.2 -02:19:42  9.6  0.13 156
07LJ38         18:42:34.8 -02:13:27 14.0       155
Positions are for J2000

Event circumstances last updated at 2020/04/30 19:36:32 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	07:14:58	-16.4	AT	Down	29.3	138.0	Low	06:59:58 - 07:29:58	7264
Kelowna	07:14:59	-16.8	AT	Down	29.5	137.7	Low	06:59:59 - 07:29:59	7237
Peachland	07:15:00	-16.9	AT	Down	29.4	137.4	Low	07:00:00 - 07:30:00	7228
Summerland	07:15:00	-17.0	AT	Down	29.6	137.4	Low	07:00:00 - 07:30:00	7218
Penticton	07:15:00	-17.1	AT	Down	29.7	137.5	Low	07:00:00 - 07:30:00	7214
Oliver	07:15:01	-17.5	AT	Down	29.9	137.3	Low	07:00:01 - 07:30:01	7189
Anarchist Mountain Observatory	07:15:01	-17.7	AT	Down	30.2	137.5	Up	07:00:01 - 07:30:01	7178
Tonasket	07:15:02	-18.0	AT	Down	30.4	137.3	Up	07:00:02 - 07:30:02	7155
Victoria	07:15:13	-17.6	AT	Down	28.7	133.2	Low	07:00:13 - 07:30:13	7131
Okanogan	07:15:03	-18.3	Dark	Down	30.5	137.0	Up	07:00:03 - 07:30:03	7130
Brewster	07:15:04	-18.5	Dark	Down	30.6	136.7	Up	07:00:04 - 07:30:04	7110
Manson/Chelan	07:15:06	-18.7	Dark	Down	30.6	136.2	Up	07:00:06 - 07:30:06	7094
Entiat	07:15:06	-18.9	Dark	Down	30.8	136.1	Up	07:00:06 - 07:30:06	7077
Wenatchee	07:15:07	-19.1	Dark	Down	30.9	135.9	Up	07:00:07 - 07:30:07	7059
Ellensburg	07:15:09	-19.5	Dark	Down	31.1	135.5	Up	07:00:09 - 07:30:09	7027
Yakima	07:15:10	-19.9	Dark	Down	31.4	135.3	Up	07:00:10 - 07:30:10	6997
Toppenish/White Swan	07:15:09	-20.1	Dark	Down	31.6	135.4	Up	07:00:09 - 07:30:09	6981
Pasco	07:15:06	-20.4	Dark	Down	32.3	136.6	Up	07:00:06 - 07:30:06	6976
PNWRO	07:15:06	-20.7	Dark	Down	32.6	136.7	Up	07:00:06 - 07:30:06	6958
Goldendale	07:15:12	-20.6	Dark	Down	31.8	134.7	Up	07:00:12 - 07:30:12	6939
The Dalles	07:15:14	-20.8	Dark	Down	31.8	134.2	Up	07:00:14 - 07:30:14	6920
Maupin	07:15:14	-21.2	Dark	Down	32.1	134.2	Up	07:00:14 - 07:30:14	6889
Sisters	07:15:17	-22.0	Dark	Down	32.5	133.3	Up	07:00:17 - 07:30:17	6819
Redmond	07:15:16	-22.1	Dark	Down	32.7	133.7	Up	07:00:16 - 07:30:16	6819
Bend	07:15:17	-22.3	Dark	Down	32.8	133.4	Up	07:00:17 - 07:30:17	6802
Oregon Observatory	07:15:18	-22.4	Dark	Down	32.8	133.2	Up	07:00:18 - 07:30:18	6788
La Pine/Gilchrist	07:15:18	-22.6	Dark	Down	32.9	133.1	Up	07:00:18 - 07:30:18	6771
North Lake	07:15:18	-23.1	Dark	Down	33.6	133.5	Up	07:00:18 - 07:30:18	6739
Paisley	07:15:18	-23.7	Dark	Down	34.1	133.6	Up	07:00:18 - 07:30:18	6696
Lakeview	07:15:18	-24.3	Dark	Down	34.6	133.5	Up	07:00:18 - 07:30:18	6656
Klamath Falls	07:15:22	-24.0	Dark	Down	33.8	132.1	Up	07:00:22 - 07:30:22	6654
Cedarville	07:15:19	-24.9	Dark	Down	35.1	133.4	Up	07:00:19 - 07:30:19	6603
Fall River/Burney	07:15:24	-25.2	Dark	Down	34.8	131.9	Up	07:00:24 - 07:30:24	6559
Niwot	07:14:31	-27.1	Dark	Down	43.2	149.5	Up	06:59:31 - 07:29:31	6530
SwRI	07:14:31	-27.2	Dark	Down	43.3	149.3	Up	06:59:31 - 07:29:31	6521
Susanville	07:15:23	-25.9	Dark	Down	35.6	132.3	Up	07:00:23 - 07:30:23	6510
Gimple	07:15:24	-26.2	Dark	Down	35.7	131.9	Up	07:00:24 - 07:30:24	6486
Greenville	07:15:24	-26.2	Dark	Down	35.6	131.9	Up	07:00:24 - 07:30:24	6486
Quincy	07:15:24	-26.4	Dark	Down	35.8	131.8	Up	07:00:24 - 07:30:24	6469
Portola	07:15:23	-26.6	Dark	Down	36.1	132.2	Up	07:00:23 - 07:30:23	6460
Reno	07:15:22	-26.9	Dark	Down	36.7	132.7	Up	07:00:22 - 07:30:22	6440
Carson City	07:15:22	-27.3	Dark	Down	36.9	132.5	Up	07:00:22 - 07:30:22	6410
Yerington	07:15:20	-27.6	Dark	Down	37.4	133.0	Up	07:00:20 - 07:30:20	6395
Gardnerville	07:15:22	-27.5	Dark	Down	37.1	132.4	Up	07:00:22 - 07:30:22	6389
Hawthorne	07:15:20	-28.1	Dark	Down	38.1	133.3	Up	07:00:20 - 07:30:20	6357
Tonopah	07:15:16	-28.7	Dark	Down	39.2	134.5	Up	07:00:16 - 07:30:16	6322
Lee Vining	07:15:22	-28.6	Dark	Down	38.2	132.5	Up	07:00:22 - 07:30:22	6308
Bishop	07:15:21	-29.3	Dark	Down	39.0	132.9	Up	07:00:21 - 07:30:21	6258
Beatty	07:15:16	-29.9	Dark	Down	40.2	134.3	Up	07:00:16 - 07:30:16	6223
Indian Springs	07:15:13	-30.4	Dark	Down	41.1	135.3	Up	07:00:13 - 07:30:13	6198
Henderson	07:15:11	-31.0	Dark	Down	41.8	135.7	Up	07:00:11 - 07:30:11	6153
Searchlight/Boulder City	07:15:12	-31.5	Dark	Down	42.3	135.4	Up	07:00:12 - 07:30:12	6102
Patrick	07:15:08	-31.7	Dark	Down	42.9	136.6	Up	07:00:08 - 07:30:08	6101
Kingman/Dolan Springs	07:15:09	-31.9	Dark	Down	43.0	136.2	Up	07:00:09 - 07:30:09	6081
Laughlin/Bullhead City	07:15:11	-31.9	Dark	Down	42.7	135.6	Up	07:00:11 - 07:30:11	6076
DCO	07:15:06	-32.0	Dark	Down	43.5	137.2	Up	07:00:06 - 07:30:06	6076
CPSLO	07:15:32	-30.9	Dark	Down	39.0	129.4	Up	07:00:32 - 07:30:32	6068
Mohave Valley	07:15:11	-32.1	Dark	Down	42.9	135.5	Up	07:00:11 - 07:30:11	6052
Lake Havasu City	07:15:11	-32.6	Dark	Down	43.3	135.5	Up	07:00:11 - 07:30:11	6017
Parker	07:15:12	-32.9	Dark	Down	43.6	135.3	Up	07:00:12 - 07:30:12	5985
Wildwood	07:15:27	-32.5	Dark	Down	41.1	130.7	Up	07:00:27 - 07:30:27	5967
George/Scottsdale	07:15:03	-33.5	Dark	Down	45.3	137.7	Up	07:00:03 - 07:30:03	5955
Idyllwild	07:15:21	-33.1	Dark	Down	42.5	132.4	Up	07:00:21 - 07:30:21	5941
Blythe	07:15:13	-33.4	Dark	Down	43.8	134.6	Up	07:00:13 - 07:30:13	5937
Calipatria	07:15:18	-33.8	Dark	Down	43.6	133.2	Up	07:00:18 - 07:30:18	5889
Yuma	07:15:15	-34.3	Dark	Down	44.4	133.9	Up	07:00:15 - 07:30:15	5852