RECON: TNO occultation with 459865

Event between (459865) 13XZ8 and star GA0720:23472869 with event index number of 2286516

Geocentric closest approach at 2027/10/11 02:08:53 UTC

J2000 position of star is 18:30:26.0 -16:54:37
Equinox of date position of star is 18:31:51.1 -16:53:31
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 49 degrees from the moon. Moon is 82% illuminated.
Apparent brightness V=20.5

[RECON map]
Object is 11.4 AU from the Sun and 11.6 AU from the Earth.
Apparent velocity is 14.0 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is 633 km.
The sky-plane scale is 8385.9 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 5.4 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 459865, (2027/10/11 02:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.9 -26:29:28  0.9 29.60  77
Nunki          18:56:59.1 -26:15:34  2.0 11.01  44
PPM 234652     18:33:03.9 -18:22:52  5.0  1.51  49
PPM 234690     18:34:38.4 -16:32:15  7.3  0.71  49
PPM 234613     18:31:27.2 -16:41:39  9.4  0.24  49
459865         18:32:02.6 -16:53:21 16.1        49
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 11.6 km RECON observability=0.1 and success probability=0.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	02:10:29	-8.8	NT	Up	21.3	194.5	Low	02:03:19 - 02:17:39	7729
Kelowna	02:10:35	-9.4	NT	Up	21.9	195.5	Low	02:03:25 - 02:17:45	7684
Peachland	02:10:34	-9.2	NT	Up	22.1	195.2	Low	02:03:24 - 02:17:44	7682
Summerland	02:10:34	-9.3	NT	Up	22.2	195.3	Low	02:03:24 - 02:17:44	7674
Penticton	02:10:35	-9.4	NT	Up	22.3	195.4	Low	02:03:25 - 02:17:45	7669
Victoria	02:10:16	-6.8	NT	Up	23.8	191.5	Low	02:03:06 - 02:17:26	7658
Oliver	02:10:36	-9.4	NT	Up	22.6	195.5	Low	02:03:26 - 02:17:46	7653
Anarchist Mountain Observatory	02:10:37	-9.5	NT	Up	22.7	195.7	Low	02:03:27 - 02:17:47	7643
Sleaford	02:11:34	-17.8	AT	Up	16.6	208.8	Really Low	02:04:24 - 02:18:44	7625
Okanogan	02:10:36	-9.3	NT	Up	23.4	195.6	Low	02:03:26 - 02:17:46	7614
Brewster	02:10:36	-9.2	NT	Up	23.7	195.4	Low	02:03:26 - 02:17:46	7603
Manson/Chelan	02:10:34	-9.0	NT	Up	23.9	195.0	Low	02:03:24 - 02:17:44	7596
Wenatchee	02:10:33	-8.8	NT	Up	24.4	194.9	Low	02:03:23 - 02:17:43	7574
Ellensburg	02:10:33	-8.7	NT	Up	24.9	194.7	Low	02:03:23 - 02:17:43	7556
Yakima	02:10:33	-8.7	NT	Up	25.3	194.7	Low	02:03:23 - 02:17:43	7535
Toppenish/White Swan	02:10:34	-8.8	NT	Up	25.4	194.9	Low	02:03:24 - 02:17:44	7522
The Dalles	02:10:30	-8.2	NT	Up	26.3	194.2	Low	02:03:20 - 02:17:40	7489
PNWRO	02:10:43	-9.8	NT	Up	25.5	196.6	Low	02:03:33 - 02:17:53	7487
Maupin	02:10:31	-8.3	NT	Up	26.7	194.4	Low	02:03:21 - 02:17:41	7466
Sisters	02:10:30	-7.9	NT	Up	27.7	193.9	Low	02:03:20 - 02:17:40	7424
Bend	02:10:32	-8.1	NT	Up	27.9	194.3	Low	02:03:22 - 02:17:42	7408
Oregon Observatory	02:10:31	-8.0	NT	Up	28.0	194.1	Low	02:03:21 - 02:17:41	7400
Chiloquin	02:10:30	-7.6	NT	Up	29.4	193.9	Low	02:03:20 - 02:17:40	7329
Klamath Falls	02:10:31	-7.7	NT	Up	29.7	194.0	Low	02:03:21 - 02:17:41	7309
Cedarville	02:10:41	-8.9	NT	Up	30.1	195.9	Up	02:03:31 - 02:17:51	7250
Fall River/Burney	02:10:34	-7.9	NT	Up	30.8	194.6	Up	02:03:24 - 02:17:44	7234
Greenville	02:10:37	-8.2	NT	Up	31.6	195.3	Up	02:03:27 - 02:17:47	7174
Gimple	02:10:38	-8.3	NT	Up	31.6	195.3	Up	02:03:28 - 02:17:48	7173
Quincy	02:10:38	-8.2	NT	Up	31.8	195.3	Up	02:03:28 - 02:17:48	7161
Portola	02:10:40	-8.6	NT	Up	31.8	195.8	Up	02:03:30 - 02:17:50	7148
Reno	02:10:45	-9.1	NT	Up	31.9	196.6	Up	02:03:35 - 02:17:55	7124
Carson City	02:10:46	-9.1	NT	Up	32.2	196.7	Up	02:03:36 - 02:17:56	7101
Gardnerville	02:10:46	-9.1	NT	Up	32.5	196.8	Up	02:03:36 - 02:17:56	7085
Yerington	02:10:50	-9.6	NT	Up	32.3	197.5	Up	02:03:40 - 02:18:00	7081
Hawthorne	02:10:53	-10.0	NT	Up	32.6	198.2	Up	02:03:43 - 02:18:03	7044
Lee Vining	02:10:51	-9.6	NT	Up	33.2	197.7	Up	02:03:41 - 02:18:01	7014
Bishop	02:10:56	-10.2	NT	Up	33.6	198.7	Up	02:03:46 - 02:18:06	6965
Dunrhomin	02:12:09	-20.5	Dark	Up	26.5	212.0	Low	02:04:59 - 02:19:19	6955
Nikitin	02:12:09	-20.5	Dark	Up	26.7	212.0	Low	02:04:59 - 02:19:19	6943
CU-SBO	02:12:08	-20.5	Dark	Up	26.8	212.0	Low	02:04:58 - 02:19:18	6941
Beatty	02:11:07	-11.6	NT	Up	33.6	200.6	Up	02:03:57 - 02:18:17	6912
Patrick	02:11:27	-14.0	AT	Up	34.1	204.3	Up	02:04:17 - 02:18:37	6768
Laughlin/Bullhead City	02:11:23	-13.4	AT	Up	34.5	203.5	Up	02:04:13 - 02:18:33	6760
Wildwood	02:10:58	-10.0	NT	Up	36.8	199.2	Up	02:03:48 - 02:18:08	6741
Lake Havasu City	02:11:25	-13.6	AT	Up	35.1	204.0	Up	02:04:15 - 02:18:35	6709
Idyllwild	02:11:11	-11.6	NT	Up	36.5	201.5	Up	02:04:01 - 02:18:21	6690
Calipatria	02:11:19	-12.6	AT	Up	36.7	203.1	Up	02:04:09 - 02:18:29	6627
George/Scottsdale	02:11:42	-15.7	AT	Up	34.9	207.0	Up	02:04:32 - 02:18:52	6614
Yuma	02:11:25	-13.4	AT	Up	36.8	204.2	Up	02:04:15 - 02:18:35	6582

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 459865, (2027/10/11 02:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 29.60  77
Nunki          18:55:15.9 -26:17:49  2.0 11.01  44
PPM 234652     18:31:26.3 -18:24:10  5.0  1.51  49
PPM 234690     18:33:02.1 -16:33:37  7.3  0.71  49
PPM 234613     18:29:50.8 -16:42:53  9.4  0.24  49
459865         18:30:26.0 -16:54:37 16.1        49
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:28:51 UT

RECON