RECON: TNO occultation with 579062

Event between (579062) 14KF113 and star GA0940:05378944 with event index number of 2557660

Geocentric closest approach at 2027/06/06 08:14:41 UTC

J2000 position of star is 17:45:56.9 +05:24:50
Equinox of date position of star is 17:47:06.6 +05:24:22
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon. Moon is 3% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 35.2 AU from the Sun and 34.3 AU from the Earth.
Apparent velocity is 23.5 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 235 seconds.
The 1-sigma cross-track error in the shadow position is 1705 km.
The sky-plane scale is 24857.7 km/arcsec.

The object has an absolute magnitude Hv=6.9
Diameter=250.0 km assuming a 5% albedo -- 10.8 sec chord
Diameter=102.1 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is SCATEXTD

Star training set for 579062, (2027/06/06 08:13UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:52.0 +38:48:37  0.0 35.31 115
60Bet Oph      17:44:49.7 +04:33:28  2.8  1.05 147
PPM 164771     17:54:34.4 +06:05:52  5.8  1.94 146
PPM 164547     17:47:28.2 +05:31:17  7.1  0.12 147
PPM 164534     17:46:55.8 +05:25:02  9.0  0.09 147
579062         17:47:17.7 +05:24:18 16.8       147
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 3.8 sigma about the mid-time.
The median site spacing is 28.2 km RECON observability=1.0 and success probability=27.5%

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

Sleaford 08:14:49 -13.6 AT Down 43.1 187.9 Up 07:59:49 - 08:29:49 2276

Kamloops 08:15:31 -16.6 AT Down 44.2 168.2 Up 08:00:31 - 08:30:31 2049

Kelowna 08:15:28 -17.4 AT Down 45.1 169.3 Up 08:00:28 - 08:30:28 1991

Peachland 08:15:29 -17.5 AT Down 45.2 168.9 Up 08:00:29 - 08:30:29 1980

Summerland 08:15:29 -17.6 AT Down 45.3 169.0 Up 08:00:29 - 08:30:29 1968

Penticton 08:15:29 -17.7 AT Down 45.4 169.1 Up 08:00:29 - 08:30:29 1964

Oliver 08:15:29 -18.1 Dark Down 45.8 169.0 Up 08:00:29 - 08:30:29 1935

Anarchist Mountain Observatory 08:15:28 -18.2 Dark Down 45.9 169.3 Up 08:00:28 - 08:30:28 1923

Okanogan 08:15:28 -18.9 Dark Down 46.6 168.8 Up 08:00:28 - 08:30:28 1868

Victoria 08:15:40 -18.8 Dark Down 45.8 163.5 Up 08:00:40 - 08:30:40 1852

Brewster 08:15:29 -19.2 Dark Down 46.8 168.5 Up 08:00:29 - 08:30:29 1844

Manson/Chelan 08:15:30 -19.4 Dark Down 46.9 167.9 Up 08:00:30 - 08:30:30 1824

Wenatchee 08:15:31 -19.9 Dark Down 47.4 167.6 Up 08:00:31 - 08:30:31 1783

Ellensburg 08:15:32 -20.3 Dark Down 47.8 167.2 Up 08:00:32 - 08:30:32 1747

Yakima 08:15:32 -20.7 Dark Down 48.2 167.0 Up 08:00:32 - 08:30:32 1713

Toppenish/White Swan 08:15:31 -20.9 Dark Down 48.4 167.2 Up 08:00:31 - 08:30:31 1696

PNWRO 08:15:26 -21.2 Dark Down 49.0 169.4 Up 08:00:26 - 08:30:26 1677

The Dalles 08:15:34 -21.7 Dark Down 49.0 165.9 Up 08:00:34 - 08:30:34 1623

Maupin 08:15:33 -22.1 Dark Down 49.4 165.9 Up 08:00:33 - 08:30:33 1588

Sisters 08:15:35 -23.0 Dark Down 50.2 164.9 Up 08:00:35 - 08:30:35 1508

Bend 08:15:34 -23.2 Dark Down 50.5 165.2 Up 08:00:34 - 08:30:34 1489

Oregon Observatory 08:15:35 -23.4 Dark Down 50.6 165.0 Up 08:00:35 - 08:30:35 1473

Chiloquin 08:15:36 -24.8 Dark Down 51.8 163.9 Up 08:00:36 - 08:30:36 1353

Klamath Falls 08:15:36 -25.1 Dark Down 52.2 163.9 Up 08:00:36 - 08:30:36 1323

Dunrhomin 08:14:38 -24.7 Dark Down 54.7 191.3 Up 07:59:38 - 08:29:38 1310

Nikitin 08:14:38 -24.9 Dark Down 54.9 191.3 Up 07:59:38 - 08:29:38 1293

CU-SBO 08:14:38 -25.0 Dark Down 54.9 191.2 Up 07:59:38 - 08:29:38 1286

Cedarville 08:15:31 -25.7 Dark Down 53.1 166.2 Up 08:00:31 - 08:30:31 1274

Fall River/Burney 08:15:35 -26.3 Dark Down 53.4 164.1 Up 08:00:35 - 08:30:35 1219

Gimple 08:15:33 -27.1 Dark Down 54.4 164.6 Up 08:00:33 - 08:30:33 1141

Greenville 08:15:34 -27.1 Dark Down 54.3 164.5 Up 08:00:34 - 08:30:34 1140

Quincy 08:15:34 -27.3 Dark Down 54.5 164.4 Up 08:00:34 - 08:30:34 1122

Portola 08:15:32 -27.4 Dark Down 54.7 165.1 Up 08:00:32 - 08:30:32 1115

Reno 08:15:29 -27.7 Dark Down 55.1 166.1 Up 08:00:29 - 08:30:29 1096

Carson City 08:15:29 -28.0 Dark Down 55.5 166.0 Up 08:00:29 - 08:30:29 1063

Yerington 08:15:27 -28.2 Dark Down 55.8 167.1 Up 08:00:27 - 08:30:27 1051

Gardnerville 08:15:29 -28.3 Dark Down 55.7 166.0 Up 08:00:29 - 08:30:29 1041

Hawthorne 08:15:25 -28.6 Dark Down 56.3 167.8 Up 08:00:25 - 08:30:25 1012

Lee Vining 08:15:27 -29.2 Dark Down 56.8 166.8 Up 08:00:27 - 08:30:27 955

Bishop 08:15:24 -29.7 Dark Down 57.5 167.9 Up 08:00:24 - 08:30:24 906

Beatty 08:15:18 -30.0 Dark Down 58.2 170.7 Up 08:00:18 - 08:30:18 878

Patrick 08:15:07 -31.1 Dark Down 59.9 175.9 Up 08:00:07 - 08:30:07 766

Laughlin/Bullhead City 08:15:09 -31.5 Dark Down 60.1 174.5 Up 08:00:09 - 08:30:09 735

Lake Havasu City 08:15:08 -32.1 Dark Down 60.8 174.9 Up 08:00:08 - 08:30:08 672

George/Scottsdale 08:14:58 -32.5 Dark Down 61.7 179.8 Up 07:59:58 - 08:29:58 624

Wildwood 08:15:24 -33.0 Dark Down 60.7 166.3 Up 08:00:24 - 08:30:24 589

Idyllwild 08:15:17 -33.2 Dark Down 61.3 169.9 Up 08:00:17 - 08:30:17 574

Calipatria 08:15:12 -33.6 Dark Down 62.1 172.1 Up 08:00:12 - 08:30:12 526

Yuma 08:15:09 -33.9 Dark Down 62.6 173.9 Up 08:00:09 - 08:30:09 493

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 579062, (2027/06/06 08:13UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 35.31 115
60Bet Oph      17:43:28.3 +04:34:06  2.8  1.05 147
PPM 164771     17:53:14.0 +06:06:07  5.8  1.94 146
PPM 164547     17:46:07.4 +05:31:49  7.1  0.12 147
PPM 164534     17:45:34.9 +05:25:35  9.0  0.09 147
579062         17:45:56.9 +05:24:50 16.8       147
Positions are for J2000

Event circumstances last updated at 2023/08/21 03:08:13 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	08:14:49	-13.6	AT	Down	43.1	187.9	Up	07:59:49 - 08:29:49	2276
Kamloops	08:15:31	-16.6	AT	Down	44.2	168.2	Up	08:00:31 - 08:30:31	2049
Kelowna	08:15:28	-17.4	AT	Down	45.1	169.3	Up	08:00:28 - 08:30:28	1991
Peachland	08:15:29	-17.5	AT	Down	45.2	168.9	Up	08:00:29 - 08:30:29	1980
Summerland	08:15:29	-17.6	AT	Down	45.3	169.0	Up	08:00:29 - 08:30:29	1968
Penticton	08:15:29	-17.7	AT	Down	45.4	169.1	Up	08:00:29 - 08:30:29	1964
Oliver	08:15:29	-18.1	Dark	Down	45.8	169.0	Up	08:00:29 - 08:30:29	1935
Anarchist Mountain Observatory	08:15:28	-18.2	Dark	Down	45.9	169.3	Up	08:00:28 - 08:30:28	1923
Okanogan	08:15:28	-18.9	Dark	Down	46.6	168.8	Up	08:00:28 - 08:30:28	1868
Victoria	08:15:40	-18.8	Dark	Down	45.8	163.5	Up	08:00:40 - 08:30:40	1852
Brewster	08:15:29	-19.2	Dark	Down	46.8	168.5	Up	08:00:29 - 08:30:29	1844
Manson/Chelan	08:15:30	-19.4	Dark	Down	46.9	167.9	Up	08:00:30 - 08:30:30	1824
Wenatchee	08:15:31	-19.9	Dark	Down	47.4	167.6	Up	08:00:31 - 08:30:31	1783
Ellensburg	08:15:32	-20.3	Dark	Down	47.8	167.2	Up	08:00:32 - 08:30:32	1747
Yakima	08:15:32	-20.7	Dark	Down	48.2	167.0	Up	08:00:32 - 08:30:32	1713
Toppenish/White Swan	08:15:31	-20.9	Dark	Down	48.4	167.2	Up	08:00:31 - 08:30:31	1696
PNWRO	08:15:26	-21.2	Dark	Down	49.0	169.4	Up	08:00:26 - 08:30:26	1677
The Dalles	08:15:34	-21.7	Dark	Down	49.0	165.9	Up	08:00:34 - 08:30:34	1623
Maupin	08:15:33	-22.1	Dark	Down	49.4	165.9	Up	08:00:33 - 08:30:33	1588
Sisters	08:15:35	-23.0	Dark	Down	50.2	164.9	Up	08:00:35 - 08:30:35	1508
Bend	08:15:34	-23.2	Dark	Down	50.5	165.2	Up	08:00:34 - 08:30:34	1489
Oregon Observatory	08:15:35	-23.4	Dark	Down	50.6	165.0	Up	08:00:35 - 08:30:35	1473
Chiloquin	08:15:36	-24.8	Dark	Down	51.8	163.9	Up	08:00:36 - 08:30:36	1353
Klamath Falls	08:15:36	-25.1	Dark	Down	52.2	163.9	Up	08:00:36 - 08:30:36	1323
Dunrhomin	08:14:38	-24.7	Dark	Down	54.7	191.3	Up	07:59:38 - 08:29:38	1310
Nikitin	08:14:38	-24.9	Dark	Down	54.9	191.3	Up	07:59:38 - 08:29:38	1293
CU-SBO	08:14:38	-25.0	Dark	Down	54.9	191.2	Up	07:59:38 - 08:29:38	1286
Cedarville	08:15:31	-25.7	Dark	Down	53.1	166.2	Up	08:00:31 - 08:30:31	1274
Fall River/Burney	08:15:35	-26.3	Dark	Down	53.4	164.1	Up	08:00:35 - 08:30:35	1219
Gimple	08:15:33	-27.1	Dark	Down	54.4	164.6	Up	08:00:33 - 08:30:33	1141
Greenville	08:15:34	-27.1	Dark	Down	54.3	164.5	Up	08:00:34 - 08:30:34	1140
Quincy	08:15:34	-27.3	Dark	Down	54.5	164.4	Up	08:00:34 - 08:30:34	1122
Portola	08:15:32	-27.4	Dark	Down	54.7	165.1	Up	08:00:32 - 08:30:32	1115
Reno	08:15:29	-27.7	Dark	Down	55.1	166.1	Up	08:00:29 - 08:30:29	1096
Carson City	08:15:29	-28.0	Dark	Down	55.5	166.0	Up	08:00:29 - 08:30:29	1063
Yerington	08:15:27	-28.2	Dark	Down	55.8	167.1	Up	08:00:27 - 08:30:27	1051
Gardnerville	08:15:29	-28.3	Dark	Down	55.7	166.0	Up	08:00:29 - 08:30:29	1041
Hawthorne	08:15:25	-28.6	Dark	Down	56.3	167.8	Up	08:00:25 - 08:30:25	1012
Lee Vining	08:15:27	-29.2	Dark	Down	56.8	166.8	Up	08:00:27 - 08:30:27	955
Bishop	08:15:24	-29.7	Dark	Down	57.5	167.9	Up	08:00:24 - 08:30:24	906
Beatty	08:15:18	-30.0	Dark	Down	58.2	170.7	Up	08:00:18 - 08:30:18	878
Patrick	08:15:07	-31.1	Dark	Down	59.9	175.9	Up	08:00:07 - 08:30:07	766
Laughlin/Bullhead City	08:15:09	-31.5	Dark	Down	60.1	174.5	Up	08:00:09 - 08:30:09	735
Lake Havasu City	08:15:08	-32.1	Dark	Down	60.8	174.9	Up	08:00:08 - 08:30:08	672
George/Scottsdale	08:14:58	-32.5	Dark	Down	61.7	179.8	Up	07:59:58 - 08:29:58	624
Wildwood	08:15:24	-33.0	Dark	Down	60.7	166.3	Up	08:00:24 - 08:30:24	589
Idyllwild	08:15:17	-33.2	Dark	Down	61.3	169.9	Up	08:00:17 - 08:30:17	574
Calipatria	08:15:12	-33.6	Dark	Down	62.1	172.1	Up	08:00:12 - 08:30:12	526
Yuma	08:15:09	-33.9	Dark	Down	62.6	173.9	Up	08:00:09 - 08:30:09	493