RECON: TNO occultation with 533028

Event between (533028) 14AL55 and star GA1060:03272843 with event index number of 2163426

Geocentric closest approach at 2025/04/24 03:49:17 UTC

J2000 position of star is 09:44:19.5 +16:33:37
Equinox of date position of star is 09:45:40.1 +16:26:50
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon. Moon is 19% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 34.1 AU from the Sun and 33.8 AU from the Earth.
Apparent velocity is 4.6 km/sec on the sky relative to the star, or, 0.7 arcsec/hr.
The 1-sigma error in the time of the event is 418 seconds.
The 1-sigma cross-track error in the shadow position is 1568 km.
The sky-plane scale is 24488.0 km/arcsec.

The object has an absolute magnitude Hv=6.7
Diameter=279.3 km assuming a 5% albedo -- 61.4 sec chord
Diameter=114.0 km assuming a 30% albedo -- 25.1 sec chord
Dynamical classification is 7:4EEE
 
 
 
 
 
 

Star training set for 533028, (2025/04/24 04:01UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:43.1 +11:50:33  1.3  7.42 166
16Psi Leo      09:45:06.4 +13:54:17  5.3  2.54 160
PPM 126714     09:43:42.5 +16:57:56  7.9  0.71 159
PPM 126751     09:45:57.6 +16:17:47  8.7  0.16 159
533028         09:45:42.9 +16:26:35 15.2       160
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 2.2 sigma about the mid-time.
The median site spacing is 46.5 km RECON observability=0.2 and success probability=13.9%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	03:46:45	-12.6	AT	Down	52.0	207.3	Up	03:31:45 - 04:01:45	-20
Kamloops	03:49:58	-6.5	NT	Down	55.8	185.9	Up	03:34:58 - 04:04:58	-296
Kelowna	03:49:42	-7.4	NT	Down	56.5	187.5	Up	03:34:42 - 04:04:42	-362
Peachland	03:49:47	-7.3	NT	Down	56.7	187.0	Up	03:34:47 - 04:04:47	-375
Summerland	03:49:45	-7.4	NT	Down	56.8	187.2	Up	03:34:45 - 04:04:45	-388
Penticton	03:49:42	-7.5	NT	Down	56.8	187.4	Up	03:34:42 - 04:04:42	-393
Oliver	03:49:42	-7.6	NT	Down	57.2	187.5	Up	03:34:42 - 04:04:42	-425
Anarchist Mountain Observatory	03:49:38	-7.8	NT	Down	57.4	187.8	Up	03:34:38 - 04:04:38	-439
Okanogan	03:49:40	-8.0	NT	Down	58.0	187.6	Up	03:34:40 - 04:04:40	-501
Victoria	03:50:38	-5.9	CT	Down	58.0	181.1	Up	03:35:38 - 04:05:38	-520
Brewster	03:49:42	-8.1	NT	Down	58.3	187.3	Up	03:34:42 - 04:04:42	-529
Manson/Chelan	03:49:46	-8.0	NT	Down	58.5	186.7	Up	03:34:46 - 04:04:46	-552
Wenatchee	03:49:48	-8.1	NT	Down	59.0	186.5	Up	03:34:48 - 04:04:48	-598
Ellensburg	03:49:50	-8.2	NT	Down	59.4	186.2	Up	03:34:50 - 04:04:50	-639
Yakima	03:49:48	-8.4	NT	Down	59.9	186.2	Up	03:34:48 - 04:04:48	-678
Toppenish/White Swan	03:49:46	-8.6	NT	Down	60.1	186.5	Up	03:34:46 - 04:04:46	-697
PNWRO	03:49:21	-9.6	NT	Down	60.3	189.3	Up	03:34:21 - 04:04:21	-718
The Dalles	03:49:56	-8.5	NT	Down	60.9	185.2	Up	03:34:56 - 04:04:56	-778
Maupin	03:49:53	-8.7	NT	Down	61.3	185.5	Up	03:34:53 - 04:04:53	-818
Sisters	03:49:59	-8.8	NT	Down	62.2	184.7	Up	03:34:59 - 04:04:59	-907
Bend	03:49:54	-9.1	NT	Down	62.4	185.2	Up	03:34:54 - 04:04:54	-928
Oregon Observatory	03:49:56	-9.1	NT	Down	62.6	185.0	Up	03:34:56 - 04:04:56	-946
Chiloquin	03:49:59	-9.5	NT	Down	63.9	184.3	Up	03:34:59 - 04:04:59	-1080
Dunrhomin	03:45:13	-20.5	Dark	Down	61.9	217.7	Up	03:30:13 - 04:00:13	-1104
Klamath Falls	03:49:57	-9.7	NT	Down	64.3	184.5	Up	03:34:57 - 04:04:57	-1113
Nikitin	03:45:13	-20.6	Dark	Down	62.0	217.8	Up	03:30:13 - 04:00:13	-1123
CU-SBO	03:45:14	-20.6	Dark	Down	62.1	217.8	Up	03:30:14 - 04:00:14	-1130
Cedarville	03:49:28	-11.0	NT	Down	64.8	188.0	Up	03:34:28 - 04:04:28	-1167
Fall River/Burney	03:49:47	-10.4	NT	Down	65.4	185.5	Up	03:34:47 - 04:04:47	-1227
Gimple	03:49:37	-11.2	NT	Down	66.3	186.9	Up	03:34:37 - 04:04:37	-1313
Greenville	03:49:37	-11.1	NT	Down	66.3	186.7	Up	03:34:37 - 04:04:37	-1314
Quincy	03:49:37	-11.2	NT	Down	66.5	186.8	Up	03:34:37 - 04:04:37	-1334
Portola	03:49:29	-11.6	NT	Down	66.6	187.9	Up	03:34:29 - 04:04:29	-1342
Reno	03:49:17	-12.1	AT	Down	66.8	189.4	Up	03:34:17 - 04:04:17	-1362
Carson City	03:49:14	-12.3	AT	Down	67.1	189.6	Up	03:34:14 - 04:04:14	-1398
Yerington	03:49:03	-12.8	AT	Down	67.2	191.1	Up	03:34:03 - 04:04:03	-1411
Gardnerville	03:49:14	-12.5	AT	Down	67.4	189.8	Up	03:34:14 - 04:04:14	-1423
Hawthorne	03:48:53	-13.4	AT	Down	67.6	192.5	Up	03:33:53 - 04:03:53	-1453
Lee Vining	03:48:59	-13.3	AT	Down	68.2	191.6	Up	03:33:59 - 04:03:59	-1516
Bishop	03:48:44	-14.1	AT	Down	68.7	193.7	Up	03:33:44 - 04:03:44	-1569
Beatty	03:48:14	-15.3	AT	Down	68.8	197.9	Up	03:33:14 - 04:03:14	-1598
Patrick	03:47:17	-17.9	AT	Down	69.4	206.2	Up	03:32:17 - 04:02:17	-1715
Laughlin/Bullhead City	03:47:28	-17.6	AT	Down	69.9	204.7	Up	03:32:28 - 04:02:28	-1750
Lake Havasu City	03:47:23	-18.1	Dark	Down	70.4	206.1	Up	03:32:23 - 04:02:23	-1816
George/Scottsdale	03:46:35	-20.1	Dark	Down	70.1	213.0	Up	03:31:35 - 04:01:35	-1864
Wildwood	03:48:39	-15.4	AT	Down	71.9	195.3	Up	03:33:39 - 04:03:39	-1910
Idyllwild	03:48:03	-16.9	AT	Down	71.8	200.8	Up	03:33:03 - 04:03:03	-1925
Calipatria	03:47:40	-18.0	AT	Down	72.0	204.7	Up	03:32:40 - 04:02:40	-1975
Yuma	03:47:22	-18.8	Dark	Down	72.1	207.7	Up	03:32:22 - 04:02:22	-2008

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 533028, (2025/04/24 04:01UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  7.42 166
16Psi Leo      09:43:43.9 +14:01:18  5.3  2.54 160
PPM 126714     09:42:18.8 +17:04:55  7.9  0.71 159
PPM 126751     09:44:34.3 +16:24:49  8.7  0.16 159
533028         09:44:19.5 +16:33:37 15.2       159
Positions are for J2000

Event circumstances last updated at 2024/06/13 03:45:40 UT

RECON