RECON: TNO occultation with 555915

Event between (555915) 14GX53 and star GA0800:04872949 with event index number of 2476657

Geocentric closest approach at 2026/04/23 07:30:43 UTC

J2000 position of star is 15:45:29.6 -09:36:02
Equinox of date position of star is 15:46:49.5 -09:40:32
Stellar brightness G=13.8, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 122 degrees from the moon. Moon is 41% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 35.1 AU from the Sun and 34.2 AU from the Earth.
Apparent velocity is 21.8 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is 1342 km.
The sky-plane scale is 24789.7 km/arcsec.

The object has an absolute magnitude Hv=5.4
Diameter=498.9 km assuming a 5% albedo -- 23.4 sec chord
Diameter=203.7 km assuming a 30% albedo -- 9.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 555915, (2026/04/23 07:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:01.5 -26:29:17  0.9 19.78 137
27Bet Lib      15:18:25.6 -09:28:42  2.6  7.03 115
PPM 198725     15:35:52.0 -09:16:13  5.6  2.76 119
PPM 198930     15:47:14.0 -09:47:09  8.4  0.13 122
555915         15:46:55.5 -09:40:52 13.8       122
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 5.0 sigma about the mid-time.
The median site spacing is 18.8 km RECON observability=1.0 and success probability=72.9%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	07:32:47	-25.0	Dark	Up	26.5	160.4	Low	07:26:28 - 07:39:06	1008
Kamloops	07:33:27	-26.5	Dark	Up	23.6	145.2	Low	07:27:08 - 07:39:46	607
Kelowna	07:33:26	-27.4	Dark	Up	24.6	145.9	Low	07:27:07 - 07:39:45	572
Peachland	07:33:27	-27.5	Dark	Up	24.6	145.6	Low	07:27:08 - 07:39:46	558
Summerland	07:33:27	-27.6	Dark	Up	24.8	145.6	Low	07:27:08 - 07:39:46	550
Penticton	07:33:27	-27.7	Dark	Up	24.9	145.7	Low	07:27:08 - 07:39:46	548
Oliver	07:33:27	-28.0	Dark	Up	25.2	145.6	Low	07:27:08 - 07:39:46	523
Anarchist Mountain Observatory	07:33:27	-28.2	Dark	Up	25.4	145.8	Low	07:27:08 - 07:39:46	516
Okanogan	07:33:28	-28.8	Dark	Up	25.8	145.4	Low	07:27:09 - 07:39:47	466
Brewster	07:33:29	-29.1	Dark	Up	26.0	145.1	Low	07:27:10 - 07:39:48	442
Manson/Chelan	07:33:30	-29.3	Dark	Up	26.0	144.7	Low	07:27:11 - 07:39:49	419
Victoria	07:33:38	-28.3	Dark	Up	24.2	141.7	Low	07:27:19 - 07:39:57	388
Wenatchee	07:33:31	-29.7	Dark	Up	26.3	144.4	Low	07:27:12 - 07:39:50	381
Ellensburg	07:33:32	-30.1	Dark	Up	26.6	144.1	Low	07:27:13 - 07:39:51	346
Yakima	07:33:33	-30.5	Dark	Up	26.9	143.9	Low	07:27:14 - 07:39:52	315
PNWRO	07:33:29	-31.2	Dark	Up	28.0	145.4	Low	07:27:10 - 07:39:48	313
Toppenish/White Swan	07:33:33	-30.8	Dark	Up	27.1	144.0	Low	07:27:14 - 07:39:52	304
Dunrhomin	07:32:48	-36.6	Dark	Up	37.7	158.7	Up	07:26:29 - 07:39:07	232
The Dalles	07:33:36	-31.5	Dark	Up	27.4	143.0	Low	07:27:17 - 07:39:55	227
Nikitin	07:32:49	-36.8	Dark	Up	37.9	158.6	Up	07:26:30 - 07:39:08	218
CU-SBO	07:32:49	-36.9	Dark	Up	37.9	158.5	Up	07:26:30 - 07:39:08	211
Maupin	07:33:36	-31.9	Dark	Up	27.8	143.0	Low	07:27:17 - 07:39:55	198
Sisters	07:33:38	-32.7	Dark	Up	28.3	142.2	Low	07:27:19 - 07:39:57	120
Bend	07:33:38	-33.0	Dark	Up	28.6	142.4	Low	07:27:19 - 07:39:57	108
Oregon Observatory	07:33:38	-33.1	Dark	Up	28.7	142.2	Low	07:27:19 - 07:39:57	91
Chiloquin	07:33:41	-34.4	Dark	Up	29.5	141.3	Low	07:27:22 - 07:40:00	-22
Klamath Falls	07:33:41	-34.7	Dark	Up	29.8	141.3	Low	07:27:22 - 07:40:00	-47
Cedarville	07:33:37	-35.6	Dark	Up	31.1	142.7	Up	07:27:18 - 07:39:56	-60
Fall River/Burney	07:33:41	-35.9	Dark	Up	30.9	141.2	Up	07:27:22 - 07:40:00	-131
Gimple	07:33:40	-36.9	Dark	Up	31.9	141.4	Up	07:27:21 - 07:39:59	-190
Greenville	07:33:40	-36.9	Dark	Up	31.9	141.4	Up	07:27:21 - 07:39:59	-192
Portola	07:33:39	-37.3	Dark	Up	32.3	141.7	Up	07:27:20 - 07:39:58	-206
Quincy	07:33:40	-37.1	Dark	Up	32.0	141.3	Up	07:27:21 - 07:39:59	-209
Reno	07:33:37	-37.6	Dark	Up	32.9	142.3	Up	07:27:18 - 07:39:56	-210
Yerington	07:33:36	-38.2	Dark	Up	33.6	142.7	Up	07:27:17 - 07:39:55	-238
Carson City	07:33:37	-37.9	Dark	Up	33.2	142.1	Up	07:27:18 - 07:39:56	-239
Gardnerville	07:33:38	-38.2	Dark	Up	33.4	142.1	Up	07:27:19 - 07:39:57	-258
Hawthorne	07:33:34	-38.7	Dark	Up	34.2	143.1	Up	07:27:15 - 07:39:53	-262
Lee Vining	07:33:36	-39.2	Dark	Up	34.4	142.3	Up	07:27:17 - 07:39:55	-321
Beatty	07:33:29	-40.5	Dark	Up	36.4	144.4	Up	07:27:10 - 07:39:48	-345
Bishop	07:33:34	-39.9	Dark	Up	35.3	142.8	Up	07:27:15 - 07:39:53	-352
Patrick	07:33:20	-42.0	Dark	Up	38.9	146.9	Up	07:27:01 - 07:39:39	-389
Laughlin/Bullhead City	07:33:22	-42.3	Dark	Up	38.8	146.0	Up	07:27:03 - 07:39:41	-430
George/Scottsdale	07:33:13	-43.7	Dark	Up	41.2	148.4	Up	07:26:54 - 07:39:32	-475
Lake Havasu City	07:33:21	-42.9	Dark	Up	39.5	146.0	Up	07:27:02 - 07:39:40	-480
Idyllwild	07:33:30	-43.6	Dark	Up	39.0	143.0	Up	07:27:11 - 07:39:49	-613
Calipatria	07:33:26	-44.3	Dark	Up	40.1	144.0	Up	07:27:07 - 07:39:45	-632
Wildwood	07:33:37	-43.1	Dark	Up	37.7	141.1	Up	07:27:18 - 07:39:56	-637
Yuma	07:33:23	-44.7	Dark	Up	40.8	144.7	Up	07:27:04 - 07:39:42	-644

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 555915, (2026/04/23 07:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.78 137
27Bet Lib      15:17:00.3 -09:22:59  2.6  7.03 115
PPM 198725     15:34:26.4 -09:11:01  5.6  2.76 119
PPM 198930     15:45:48.1 -09:42:19  8.4  0.13 122
555915         15:45:29.6 -09:36:02 13.8       122
Positions are for J2000

Event circumstances last updated at 2024/06/18 21:26:18 UT

RECON