RECON: TNO occultation with 10VE253

Event between 10VE253 and star GA1180:02942753 with event index number of 2106338

Geocentric closest approach at 2025/02/11 06:46:28 UTC

J2000 position of star is 07:21:46.9 +28:41:49
Equinox of date position of star is 07:23:16.6 +28:39:01
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 20 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=23.4

[RECON map]
Object is 21.5 AU from the Sun and 20.7 AU from the Earth.
Apparent velocity is 18.3 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 265 seconds.
The 1-sigma cross-track error in the shadow position is 1370 km.
The sky-plane scale is 14988.5 km/arcsec.

The object has an absolute magnitude Hv=10.0
Diameter=61.1 km assuming a 5% albedo -- 3.3 sec chord
Diameter=24.9 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR

Star training set for 10VE253, (2025/02/11 06:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:51.1 +27:57:49  1.1  5.22  14
59 Gem         07:26:07.0 +27:35:13  6.0  1.22  19
PPM 097382     07:21:56.8 +28:04:25  7.5  0.65  20
PPM 097407     07:23:02.9 +28:55:36  9.2  0.29  20
10VE253        07:23:21.3 +28:38:52 15.3        19
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 3.4 sigma about the mid-time.
The median site spacing is 35.2 km RECON observability=1.0 and success probability=30.9%

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

Sleaford 06:44:55 -51.3 Dark Up 59.5 230.3 Up 06:29:55 - 06:59:55 -615

Kamloops 06:45:44 -49.0 Dark Up 66.2 207.3 Up 06:30:44 - 07:00:44 -916

Kelowna 06:45:39 -50.0 Dark Up 66.6 210.0 Up 06:30:39 - 07:00:39 -993

Peachland 06:45:40 -50.0 Dark Up 66.8 209.6 Up 06:30:40 - 07:00:40 -1006

Summerland 06:45:40 -50.1 Dark Up 66.9 209.9 Up 06:30:40 - 07:00:40 -1021

Penticton 06:45:39 -50.2 Dark Up 66.9 210.2 Up 06:30:39 - 07:00:39 -1027

Oliver 06:45:39 -50.5 Dark Up 67.2 210.6 Up 06:30:39 - 07:00:39 -1063

Anarchist Mountain Observatory 06:45:38 -50.7 Dark Up 67.3 211.3 Up 06:30:38 - 07:00:38 -1079

Okanogan 06:45:38 -51.2 Dark Up 67.9 211.6 Up 06:30:38 - 07:00:38 -1148

Victoria 06:45:53 -49.5 Dark Up 69.0 203.0 Up 06:30:53 - 07:00:53 -1158

Brewster 06:45:39 -51.3 Dark Up 68.2 211.5 Up 06:30:39 - 07:00:39 -1178

Manson/Chelan 06:45:40 -51.3 Dark Up 68.5 211.0 Up 06:30:40 - 07:00:40 -1202

Wenatchee 06:45:40 -51.6 Dark Up 69.0 211.3 Up 06:30:40 - 07:00:40 -1253

Ellensburg 06:45:41 -51.9 Dark Up 69.4 211.3 Up 06:30:41 - 07:00:41 -1298

Yakima 06:45:41 -52.2 Dark Up 69.8 211.9 Up 06:30:41 - 07:00:41 -1341

Toppenish/White Swan 06:45:39 -52.4 Dark Up 69.9 212.6 Up 06:30:39 - 07:00:39 -1362

PNWRO 06:45:33 -53.3 Dark Up 69.6 216.5 Up 06:30:33 - 07:00:33 -1388

The Dalles 06:45:42 -52.7 Dark Up 70.9 211.9 Up 06:30:42 - 07:00:42 -1450

Maupin 06:45:42 -53.1 Dark Up 71.2 212.8 Up 06:30:42 - 07:00:42 -1493

Sisters 06:45:43 -53.5 Dark Up 72.1 213.0 Up 06:30:43 - 07:00:43 -1590

Bend 06:45:42 -53.8 Dark Up 72.2 214.1 Up 06:30:42 - 07:00:42 -1614

Oregon Observatory 06:45:42 -53.9 Dark Up 72.4 214.0 Up 06:30:42 - 07:00:42 -1633

Chiloquin 06:45:43 -54.7 Dark Up 73.7 215.4 Up 06:30:43 - 07:00:43 -1777

Dunrhomin 06:44:29 -62.8 Dark Up 65.0 250.9 Up 06:29:29 - 06:59:29 -1805

Klamath Falls 06:45:42 -55.0 Dark Up 73.9 216.3 Up 06:30:42 - 07:00:42 -1813

Nikitin 06:44:29 -63.0 Dark Up 65.1 251.3 Up 06:29:29 - 06:59:29 -1825

CU-SBO 06:44:29 -63.1 Dark Up 65.1 251.3 Up 06:29:29 - 06:59:29 -1833

Cedarville 06:45:34 -56.3 Dark Up 73.7 222.0 Up 06:30:34 - 07:00:34 -1875

Fall River/Burney 06:45:39 -56.0 Dark Up 74.7 219.9 Up 06:30:39 - 07:00:39 -1937

Gimple 06:45:36 -56.9 Dark Up 75.1 223.6 Up 06:30:36 - 07:00:36 -2031

Greenville 06:45:37 -56.9 Dark Up 75.1 223.3 Up 06:30:37 - 07:00:37 -2031

Quincy 06:45:37 -57.0 Dark Up 75.3 223.9 Up 06:30:37 - 07:00:37 -2053

Portola 06:45:34 -57.4 Dark Up 75.1 225.5 Up 06:30:34 - 07:00:34 -2063

Reno 06:45:31 -57.9 Dark Up 74.9 227.9 Up 06:30:31 - 07:00:31 -2086

Carson City 06:45:31 -58.2 Dark Up 75.1 228.9 Up 06:30:31 - 07:00:31 -2124

Yerington 06:45:28 -58.7 Dark Up 74.9 231.0 Up 06:30:28 - 07:00:28 -2139

Gardnerville 06:45:31 -58.4 Dark Up 75.3 229.7 Up 06:30:31 - 07:00:31 -2150

Hawthorne 06:45:25 -59.3 Dark Up 74.9 233.6 Up 06:30:25 - 07:00:25 -2184

Lee Vining 06:45:27 -59.4 Dark Up 75.5 234.2 Up 06:30:27 - 07:00:27 -2251

Bishop 06:45:23 -60.2 Dark Up 75.4 237.8 Up 06:30:23 - 07:00:23 -2308

Beatty 06:45:15 -61.4 Dark Up 74.5 242.6 Up 06:30:15 - 07:00:15 -2340

Patrick 06:45:00 -64.1 Dark Up 73.0 252.0 Up 06:30:00 - 07:00:00 -2465

Laughlin/Bullhead City 06:45:03 -63.9 Dark Up 73.6 251.8 Up 06:30:03 - 07:00:03 -2502

Lake Havasu City 06:45:01 -64.5 Dark Up 73.6 254.3 Up 06:30:01 - 07:00:01 -2571

George/Scottsdale 06:44:49 -66.4 Dark Up 71.8 259.5 Up 06:29:49 - 06:59:49 -2620

Wildwood 06:45:21 -62.4 Dark Up 77.0 249.3 Up 06:30:21 - 07:00:21 -2667

Idyllwild 06:45:12 -63.8 Dark Up 75.7 253.7 Up 06:30:12 - 07:00:12 -2685

Calipatria 06:45:06 -64.9 Dark Up 74.9 257.5 Up 06:30:06 - 07:00:06 -2737

Yuma 06:45:01 -65.7 Dark Up 74.2 260.0 Up 06:30:01 - 07:00:01 -2772

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 10VE253, (2025/02/11 06:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  5.22  14
59 Gem         07:24:33.4 +27:38:16  6.0  1.22  19
PPM 097382     07:20:22.8 +28:07:20  7.5  0.65  20
PPM 097407     07:21:28.3 +28:58:33  9.2  0.29  20
10VE253        07:21:46.9 +28:41:49 15.3        20
Positions are for J2000

Event circumstances last updated at 2023/11/11 05:27:38 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	06:44:55	-51.3	Dark	Up	59.5	230.3	Up	06:29:55 - 06:59:55	-615
Kamloops	06:45:44	-49.0	Dark	Up	66.2	207.3	Up	06:30:44 - 07:00:44	-916
Kelowna	06:45:39	-50.0	Dark	Up	66.6	210.0	Up	06:30:39 - 07:00:39	-993
Peachland	06:45:40	-50.0	Dark	Up	66.8	209.6	Up	06:30:40 - 07:00:40	-1006
Summerland	06:45:40	-50.1	Dark	Up	66.9	209.9	Up	06:30:40 - 07:00:40	-1021
Penticton	06:45:39	-50.2	Dark	Up	66.9	210.2	Up	06:30:39 - 07:00:39	-1027
Oliver	06:45:39	-50.5	Dark	Up	67.2	210.6	Up	06:30:39 - 07:00:39	-1063
Anarchist Mountain Observatory	06:45:38	-50.7	Dark	Up	67.3	211.3	Up	06:30:38 - 07:00:38	-1079
Okanogan	06:45:38	-51.2	Dark	Up	67.9	211.6	Up	06:30:38 - 07:00:38	-1148
Victoria	06:45:53	-49.5	Dark	Up	69.0	203.0	Up	06:30:53 - 07:00:53	-1158
Brewster	06:45:39	-51.3	Dark	Up	68.2	211.5	Up	06:30:39 - 07:00:39	-1178
Manson/Chelan	06:45:40	-51.3	Dark	Up	68.5	211.0	Up	06:30:40 - 07:00:40	-1202
Wenatchee	06:45:40	-51.6	Dark	Up	69.0	211.3	Up	06:30:40 - 07:00:40	-1253
Ellensburg	06:45:41	-51.9	Dark	Up	69.4	211.3	Up	06:30:41 - 07:00:41	-1298
Yakima	06:45:41	-52.2	Dark	Up	69.8	211.9	Up	06:30:41 - 07:00:41	-1341
Toppenish/White Swan	06:45:39	-52.4	Dark	Up	69.9	212.6	Up	06:30:39 - 07:00:39	-1362
PNWRO	06:45:33	-53.3	Dark	Up	69.6	216.5	Up	06:30:33 - 07:00:33	-1388
The Dalles	06:45:42	-52.7	Dark	Up	70.9	211.9	Up	06:30:42 - 07:00:42	-1450
Maupin	06:45:42	-53.1	Dark	Up	71.2	212.8	Up	06:30:42 - 07:00:42	-1493
Sisters	06:45:43	-53.5	Dark	Up	72.1	213.0	Up	06:30:43 - 07:00:43	-1590
Bend	06:45:42	-53.8	Dark	Up	72.2	214.1	Up	06:30:42 - 07:00:42	-1614
Oregon Observatory	06:45:42	-53.9	Dark	Up	72.4	214.0	Up	06:30:42 - 07:00:42	-1633
Chiloquin	06:45:43	-54.7	Dark	Up	73.7	215.4	Up	06:30:43 - 07:00:43	-1777
Dunrhomin	06:44:29	-62.8	Dark	Up	65.0	250.9	Up	06:29:29 - 06:59:29	-1805
Klamath Falls	06:45:42	-55.0	Dark	Up	73.9	216.3	Up	06:30:42 - 07:00:42	-1813
Nikitin	06:44:29	-63.0	Dark	Up	65.1	251.3	Up	06:29:29 - 06:59:29	-1825
CU-SBO	06:44:29	-63.1	Dark	Up	65.1	251.3	Up	06:29:29 - 06:59:29	-1833
Cedarville	06:45:34	-56.3	Dark	Up	73.7	222.0	Up	06:30:34 - 07:00:34	-1875
Fall River/Burney	06:45:39	-56.0	Dark	Up	74.7	219.9	Up	06:30:39 - 07:00:39	-1937
Gimple	06:45:36	-56.9	Dark	Up	75.1	223.6	Up	06:30:36 - 07:00:36	-2031
Greenville	06:45:37	-56.9	Dark	Up	75.1	223.3	Up	06:30:37 - 07:00:37	-2031
Quincy	06:45:37	-57.0	Dark	Up	75.3	223.9	Up	06:30:37 - 07:00:37	-2053
Portola	06:45:34	-57.4	Dark	Up	75.1	225.5	Up	06:30:34 - 07:00:34	-2063
Reno	06:45:31	-57.9	Dark	Up	74.9	227.9	Up	06:30:31 - 07:00:31	-2086
Carson City	06:45:31	-58.2	Dark	Up	75.1	228.9	Up	06:30:31 - 07:00:31	-2124
Yerington	06:45:28	-58.7	Dark	Up	74.9	231.0	Up	06:30:28 - 07:00:28	-2139
Gardnerville	06:45:31	-58.4	Dark	Up	75.3	229.7	Up	06:30:31 - 07:00:31	-2150
Hawthorne	06:45:25	-59.3	Dark	Up	74.9	233.6	Up	06:30:25 - 07:00:25	-2184
Lee Vining	06:45:27	-59.4	Dark	Up	75.5	234.2	Up	06:30:27 - 07:00:27	-2251
Bishop	06:45:23	-60.2	Dark	Up	75.4	237.8	Up	06:30:23 - 07:00:23	-2308
Beatty	06:45:15	-61.4	Dark	Up	74.5	242.6	Up	06:30:15 - 07:00:15	-2340
Patrick	06:45:00	-64.1	Dark	Up	73.0	252.0	Up	06:30:00 - 07:00:00	-2465
Laughlin/Bullhead City	06:45:03	-63.9	Dark	Up	73.6	251.8	Up	06:30:03 - 07:00:03	-2502
Lake Havasu City	06:45:01	-64.5	Dark	Up	73.6	254.3	Up	06:30:01 - 07:00:01	-2571
George/Scottsdale	06:44:49	-66.4	Dark	Up	71.8	259.5	Up	06:29:49 - 06:59:49	-2620
Wildwood	06:45:21	-62.4	Dark	Up	77.0	249.3	Up	06:30:21 - 07:00:21	-2667
Idyllwild	06:45:12	-63.8	Dark	Up	75.7	253.7	Up	06:30:12 - 07:00:12	-2685
Calipatria	06:45:06	-64.9	Dark	Up	74.9	257.5	Up	06:30:06 - 07:00:06	-2737
Yuma	06:45:01	-65.7	Dark	Up	74.2	260.0	Up	06:30:01 - 07:00:01	-2772