RECON: TNO occultation with 65489

Event between (65489) Ceto and star GA0900:04521926 with event index number of 2400459

Geocentric closest approach at 2028/09/23 02:25:37 UTC

J2000 position of star is 16:15:49.7 +00:03:56
Equinox of date position of star is 16:17:05.0 +00:00:21
Stellar brightness G=12.1, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 25 degrees from the moon. Moon is 25% illuminated.
Apparent brightness V=23.4

[RECON map]
Object is 47.6 AU from the Sun and 48.0 AU from the Earth.
Apparent velocity is 20.1 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 156 seconds.
The 1-sigma cross-track error in the shadow position is 2902 km.
The sky-plane scale is 34849.2 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=309.0 km assuming a 5% albedo -- 15.2 sec chord
Diameter=126.2 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 65489, (2028/09/23 02:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:10.4 -26:29:35  0.9 26.70   9
1Del Oph       16:15:51.3 -03:45:57  2.7  3.78  21
PPM 199363     16:11:20.9 -03:32:25  5.0  3.84  21
PPM 179746     16:14:39.8 -00:35:26  8.2  0.88  24
PPM 162387     16:16:34.8 -00:02:31 10.0  0.18  25
65489          16:17:18.1 -00:00:16 12.1        25
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 0.0 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)
Sleaford	02:25:02	-13.7	AT	Down	23.9	235.4	Low	02:11:32 - 02:38:33	8834
Dunrhomin	02:26:00	-17.7	AT	Up	29.5	241.5	Low	02:12:30 - 02:39:31	8561
Nikitin	02:26:01	-17.7	AT	Up	29.6	241.5	Low	02:12:31 - 02:39:32	8554
CU-SBO	02:26:02	-17.7	AT	Up	29.7	241.5	Low	02:12:31 - 02:39:32	8549
Kelowna	02:24:45	-5.7	CT	Up	31.8	222.8	Up	02:11:14 - 02:38:15	8360
Kamloops	02:24:38	-5.1	CT	Up	31.6	221.4	Up	02:11:08 - 02:38:09	8350
Penticton	02:24:45	-5.7	CT	Up	32.1	222.8	Up	02:11:15 - 02:38:16	8347
Peachland	02:24:42	-5.6	CT	Up	32.1	222.5	Up	02:11:11 - 02:38:12	8346
Summerland	02:24:44	-5.6	CT	Up	32.1	222.7	Up	02:11:13 - 02:38:14	8346
Anarchist Mountain Observatory	02:24:48	-5.9	CT	Up	32.4	223.2	Up	02:11:17 - 02:38:18	8340
Oliver	02:24:47	-5.8	CT	Up	32.4	223.0	Up	02:11:16 - 02:38:17	8337
Okanogan	02:24:47	-5.8	CT	Up	33.0	223.3	Up	02:11:17 - 02:38:18	8312
Brewster	02:24:51	-5.7	CT	Up	33.3	223.2	Up	02:11:20 - 02:38:21	8296
Manson/Chelan	02:24:51	-5.5	CT	Up	33.6	222.9	Up	02:11:20 - 02:38:21	8276
PNWRO	02:25:02	-6.6	NT	Up	34.3	225.2	Up	02:11:31 - 02:38:32	8262
Wenatchee	02:24:52	-5.4	CT	Up	34.0	223.0	Up	02:11:21 - 02:38:22	8254
Ellensburg	02:24:49	-5.3	CT	Up	34.4	222.9	Up	02:11:19 - 02:38:20	8232
Yakima	02:24:55	-5.4	CT	Up	34.7	223.1	Up	02:11:25 - 02:38:26	8218
Toppenish/White Swan	02:24:54	-5.5	CT	Up	34.8	223.4	Up	02:11:24 - 02:38:25	8217
Victoria	02:24:38	-3.3	CT	Up	34.5	219.0	Up	02:11:08 - 02:38:09	8173
The Dalles	02:24:56	-5.0	CT	Up	35.7	222.9	Up	02:11:25 - 02:38:26	8159
Maupin	02:25:00	-5.2	CT	Up	36.0	223.2	Up	02:11:29 - 02:38:30	8148
Bend	02:25:00	-5.1	CT	Up	36.9	223.6	Up	02:11:29 - 02:38:30	8098
Sisters	02:25:02	-4.9	CT	Up	36.9	223.2	Up	02:11:31 - 02:38:32	8096
Oregon Observatory	02:25:01	-5.0	CT	Up	37.1	223.5	Up	02:11:31 - 02:38:32	8086
Cedarville	02:25:15	-6.2	NT	Up	38.1	226.2	Up	02:11:45 - 02:38:46	8044
George/Scottsdale	02:26:13	-13.9	AT	Up	37.4	239.5	Up	02:12:43 - 02:39:44	8040
Patrick	02:25:59	-12.0	NT	Up	37.9	236.5	Up	02:12:29 - 02:39:30	8038
Chiloquin	02:25:05	-4.8	CT	Up	38.2	223.8	Up	02:11:35 - 02:38:36	8017
Klamath Falls	02:25:09	-4.9	CT	Up	38.4	224.1	Up	02:11:39 - 02:38:40	8005
Laughlin/Bullhead City	02:25:59	-11.4	NT	Up	38.5	236.0	Up	02:12:29 - 02:39:30	7996
Beatty	02:25:45	-9.4	NT	Up	39.0	232.7	Up	02:12:15 - 02:39:16	7985
Hawthorne	02:25:33	-7.7	NT	Up	39.2	229.7	Up	02:12:02 - 02:39:03	7980
Yerington	02:25:28	-7.2	NT	Up	39.2	228.9	Up	02:11:57 - 02:38:58	7978
Lake Havasu City	02:25:59	-11.7	NT	Up	38.7	236.7	Up	02:12:29 - 02:39:30	7974
Reno	02:25:24	-6.7	NT	Up	39.2	227.8	Up	02:11:54 - 02:38:55	7974
Fall River/Burney	02:25:15	-5.3	CT	Up	39.1	225.2	Up	02:11:45 - 02:38:46	7972
Carson City	02:25:24	-6.7	NT	Up	39.4	228.1	Up	02:11:54 - 02:38:55	7959
Portola	02:25:22	-6.1	NT	Up	39.4	226.9	Up	02:11:52 - 02:38:53	7958
Gimple	02:25:19	-5.8	CT	Up	39.4	226.3	Up	02:11:48 - 02:38:49	7955
Greenville	02:25:20	-5.7	CT	Up	39.4	226.2	Up	02:11:49 - 02:38:50	7952
Gardnerville	02:25:27	-6.8	NT	Up	39.6	228.3	Up	02:11:56 - 02:38:57	7950
Quincy	02:25:19	-5.7	CT	Up	39.6	226.3	Up	02:11:48 - 02:38:49	7943
Bishop	02:25:37	-8.0	NT	Up	39.8	230.7	Up	02:12:07 - 02:39:08	7937
Lee Vining	02:25:31	-7.4	NT	Up	39.8	229.6	Up	02:12:01 - 02:39:02	7934
Yuma	02:26:06	-11.7	NT	Up	39.9	237.7	Up	02:12:36 - 02:39:37	7871
Calipatria	02:26:06	-10.9	NT	Up	40.3	236.5	Up	02:12:36 - 02:39:37	7854
Idyllwild	02:25:59	-9.8	NT	Up	40.8	234.9	Up	02:12:29 - 02:39:30	7834
Wildwood	02:25:50	-8.2	NT	Up	41.9	232.8	Up	02:12:20 - 02:39:21	7767

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 65489, (2028/09/23 02:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 26.70   9
1Del Oph       16:14:20.7 -03:41:43  2.7  3.78  21
PPM 199363     16:09:50.5 -03:28:00  5.0  3.84  21
PPM 179746     16:13:11.1 -00:31:09  8.2  0.88  24
PPM 162387     16:15:06.5 +00:01:41 10.0  0.18  25
65489          16:15:49.7 +00:03:56 12.1        25
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:34:08 UT

RECON