RECON: TNO occultation with 469362

Event between (469362) 01KB77 and star GA0820:13051380 with event index number of 1737925

Geocentric closest approach at 2027/07/25 04:28:30 UTC

J2000 position of star is 18:46:59.4 -07:09:22
Equinox of date position of star is 18:48:18.7 -07:07:41
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 91 degrees from the moon. Moon is 65% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 28.4 AU from the Sun and 27.5 AU from the Earth.
Apparent velocity is 21.4 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 375 seconds.
The 1-sigma cross-track error in the shadow position is 2200 km.
The sky-plane scale is 19955.0 km/arcsec.

The object has an absolute magnitude Hv=7.7
Diameter=199.5 km assuming a 5% albedo -- 8.1 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469362, (2027/07/25 04:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.1 -26:29:26  0.9 37.95 125
Nunki          18:56:58.3 -26:15:35  2.0 19.24  92
PPM 202054     18:44:05.4 -07:02:42  6.5  1.09  92
PPM 202153     18:50:05.0 -07:05:59  8.4  0.40  90
PPM 202142     18:49:17.5 -07:00:49  9.1  0.23  90
469362         18:48:28.7 -07:07:28 15.9        90
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 2.4 sigma about the mid-time.
The median site spacing is 38.7 km RECON observability=0.2 and success probability=6.9%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	04:29:29	-4.9	CT	Down	25.9	144.2	Low	04:14:29 - 04:44:29	849
Sleaford	04:28:45	-10.1	NT	Down	28.8	159.7	Low	04:13:45 - 04:43:45	825
Kelowna	04:29:29	-5.8	CT	Down	26.9	144.8	Low	04:14:29 - 04:44:29	801
Peachland	04:29:30	-5.7	CT	Down	26.9	144.5	Low	04:14:30 - 04:44:30	796
Summerland	04:29:30	-5.9	CT	Down	27.0	144.6	Low	04:14:30 - 04:44:30	788
Penticton	04:29:30	-6.0	CT	Down	27.1	144.7	Low	04:14:30 - 04:44:30	783
Oliver	04:29:31	-6.2	NT	Down	27.4	144.6	Low	04:14:31 - 04:44:31	764
Anarchist Mountain Observatory	04:29:31	-6.4	NT	Down	27.6	144.7	Low	04:14:31 - 04:44:31	754
Victoria	04:29:43	-4.7	CT	Down	26.4	140.5	Low	04:14:43 - 04:44:43	747
Okanogan	04:29:33	-6.7	NT	Down	28.1	144.3	Low	04:14:33 - 04:44:33	719
Brewster	04:29:34	-6.8	NT	Down	28.2	144.0	Low	04:14:34 - 04:44:34	705
Manson/Chelan	04:29:36	-6.7	NT	Down	28.2	143.6	Low	04:14:36 - 04:44:36	695
Wenatchee	04:29:37	-7.0	NT	Down	28.5	143.2	Low	04:14:37 - 04:44:37	668
Ellensburg	04:29:39	-7.1	NT	Down	28.8	142.9	Low	04:14:39 - 04:44:39	646
Yakima	04:29:40	-7.4	NT	Down	29.1	142.7	Low	04:14:40 - 04:44:40	622
Toppenish/White Swan	04:29:40	-7.6	NT	Down	29.3	142.8	Low	04:14:40 - 04:44:40	608
PNWRO	04:29:37	-8.6	NT	Down	30.2	144.3	Up	04:14:37 - 04:44:37	577
The Dalles	04:29:45	-7.7	NT	Down	29.6	141.8	Low	04:14:45 - 04:44:45	565
Maupin	04:29:45	-8.0	NT	Down	30.0	141.7	Up	04:14:45 - 04:44:45	539
Sisters	04:29:49	-8.3	NT	Down	30.5	140.9	Up	04:14:49 - 04:44:49	488
Bend	04:29:49	-8.6	NT	Down	30.8	141.1	Up	04:14:49 - 04:44:49	472
Oregon Observatory	04:29:50	-8.6	NT	Down	30.9	140.9	Up	04:14:50 - 04:44:50	462
Chiloquin	04:29:54	-9.2	NT	Down	31.7	140.0	Up	04:14:54 - 04:44:54	379
Klamath Falls	04:29:55	-9.4	NT	Down	32.0	139.9	Up	04:14:55 - 04:44:55	356
Cedarville	04:29:51	-10.8	NT	Down	33.3	141.3	Up	04:14:51 - 04:44:51	300
Fall River/Burney	04:29:56	-10.4	NT	Down	33.1	139.8	Up	04:14:56 - 04:44:56	275
Greenville	04:29:57	-11.2	NT	Down	34.0	139.9	Up	04:14:57 - 04:44:57	210
Gimple	04:29:57	-11.3	NT	Down	34.0	140.0	Up	04:14:57 - 04:44:57	209
Quincy	04:29:58	-11.3	NT	Down	34.2	139.8	Up	04:14:58 - 04:44:58	196
Portola	04:29:56	-11.7	NT	Down	34.5	140.3	Up	04:14:56 - 04:44:56	184
Reno	04:29:55	-12.3	AT	Down	35.0	140.8	Up	04:14:55 - 04:44:55	161
Carson City	04:29:55	-12.5	AT	Down	35.3	140.7	Up	04:14:55 - 04:44:55	136
Gardnerville	04:29:56	-12.7	AT	Down	35.5	140.6	Up	04:14:56 - 04:44:56	118
Yerington	04:29:54	-13.0	AT	Down	35.7	141.3	Up	04:14:54 - 04:44:54	118
Dunrhomin	04:29:01	-19.6	Dark	Down	40.1	157.7	Up	04:14:01 - 04:44:01	87
Hawthorne	04:29:53	-13.6	AT	Down	36.4	141.6	Up	04:14:53 - 04:44:53	81
Nikitin	04:29:02	-19.8	Dark	Down	40.2	157.7	Up	04:14:02 - 04:44:02	74
CU-SBO	04:29:02	-19.8	Dark	Down	40.3	157.5	Up	04:14:02 - 04:44:02	70
Lee Vining	04:29:56	-13.7	AT	Down	36.6	140.9	Up	04:14:56 - 04:44:56	44
Bishop	04:29:55	-14.5	AT	Down	37.4	141.4	Up	04:14:55 - 04:44:55	-5
Beatty	04:29:50	-15.8	AT	Down	38.6	142.9	Up	04:14:50 - 04:44:50	-52
Patrick	04:29:42	-18.5	Dark	Down	41.1	145.4	Up	04:14:42 - 04:44:42	-188
Laughlin/Bullhead City	04:29:45	-18.2	Dark	Down	41.0	144.5	Up	04:14:45 - 04:44:45	-202
Wildwood	04:30:02	-16.4	AT	Down	39.8	139.5	Up	04:15:02 - 04:45:02	-252
Lake Havasu City	04:29:46	-18.8	Dark	Down	41.7	144.5	Up	04:14:46 - 04:44:46	-256
Idyllwild	04:29:56	-17.9	AT	Down	41.1	141.4	Up	04:14:56 - 04:44:56	-295
George/Scottsdale	04:29:38	-20.9	Dark	Down	43.4	146.9	Up	04:14:38 - 04:44:38	-339
Calipatria	04:29:53	-19.0	Dark	Down	42.2	142.4	Up	04:14:53 - 04:44:53	-354
Yuma	04:29:50	-19.9	Dark	Down	43.0	143.1	Up	04:14:50 - 04:44:50	-396

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 469362, (2027/07/25 04:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 37.95 125
Nunki          18:55:15.9 -26:17:49  2.0 19.24  92
PPM 202054     18:42:36.1 -07:04:26  6.5  1.09  92
PPM 202153     18:48:35.7 -07:07:57  8.4  0.40  90
PPM 202142     18:47:48.3 -07:02:45  9.1  0.23  90
469362         18:46:59.4 -07:09:22 15.9        91
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:27:30 UT

RECON