RECON: TNO occultation with 523727

Event between (523727) 14NW65 and star GA1000:19426885 with event index number of 2329225

Geocentric closest approach at 2024/08/21 06:14:57 UTC

J2000 position of star is 22:44:57.2 +10:13:51
Equinox of date position of star is 22:46:09.8 +10:21:31
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 19 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=19.5

[RECON map]
Object is 19.6 AU from the Sun and 18.7 AU from the Earth.
Apparent velocity is 21.9 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 42 seconds.
The 1-sigma cross-track error in the shadow position is 728 km.
The sky-plane scale is 13543.0 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=299.2 km assuming a 5% albedo -- 13.9 sec chord
Diameter=122.2 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523727, (2024/08/21 06:15UT)
Object            RA         Dec     mag  sep  mel
Markab         23:05:59.4 +15:20:18  2.5  6.93  21
42Zet Peg      22:42:41.5 +10:57:38  3.4  1.05  20
PPM 141780     22:44:56.4 +11:04:05  7.3  0.77  19
PPM 173402     22:47:13.5 +10:06:37  9.8  0.36  18
PPM 141795     22:45:56.1 +10:21:50 11.2  0.06  19
523727         22:46:11.1 +10:21:39 16.9        19
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 32.9 km RECON observability=1.0 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	06:15:39	-23.0	Dark	Up	39.1	129.2	Up	06:11:41 - 06:19:36	6072
Victoria	06:15:54	-23.9	Dark	Up	38.9	124.6	Up	06:11:56 - 06:19:51	6025
Peachland	06:15:40	-24.0	Dark	Up	40.0	129.3	Up	06:11:43 - 06:19:38	6001
Kelowna	06:15:40	-24.0	Dark	Up	40.1	129.7	Up	06:11:43 - 06:19:38	6000
Summerland	06:15:41	-24.2	Dark	Up	40.2	129.3	Up	06:11:43 - 06:19:38	5990
Penticton	06:15:40	-24.3	Dark	Up	40.3	129.4	Up	06:11:43 - 06:19:38	5982
Oliver	06:15:41	-24.6	Dark	Up	40.5	129.2	Up	06:11:44 - 06:19:39	5961
Anarchist Mountain Observatory	06:15:43	-24.8	Dark	Up	40.7	129.3	Up	06:11:46 - 06:19:41	5945
Okanogan	06:15:45	-25.3	Dark	Up	41.0	128.6	Up	06:11:47 - 06:19:42	5911
Brewster	06:15:46	-25.5	Dark	Up	41.1	128.2	Up	06:11:49 - 06:19:44	5899
Manson/Chelan	06:15:47	-25.6	Dark	Up	41.0	127.7	Up	06:11:50 - 06:19:45	5896
Wenatchee	06:15:50	-25.9	Dark	Up	41.2	127.1	Up	06:11:53 - 06:19:48	5871
Ellensburg	06:15:53	-26.2	Dark	Up	41.3	126.6	Up	06:11:55 - 06:19:50	5851
Yakima	06:15:53	-26.6	Dark	Up	41.6	126.3	Up	06:11:56 - 06:19:51	5825
Toppenish/White Swan	06:15:54	-26.8	Dark	Up	41.8	126.4	Up	06:11:56 - 06:19:51	5806
Sleaford	06:15:00	-25.0	Dark	Up	44.1	147.1	Up	06:11:02 - 06:18:57	5782
The Dalles	06:15:59	-27.2	Dark	Up	41.8	125.0	Up	06:12:01 - 06:19:56	5778
Maupin	06:16:00	-27.6	Dark	Up	42.1	124.8	Up	06:12:02 - 06:19:57	5748
PNWRO	06:15:52	-27.6	Dark	Up	42.9	127.7	Up	06:11:54 - 06:19:49	5739
Sisters	06:16:03	-28.2	Dark	Up	42.3	123.6	Up	06:12:06 - 06:20:01	5703
Bend	06:16:05	-28.5	Dark	Up	42.6	123.7	Up	06:12:08 - 06:20:03	5680
Oregon Observatory	06:16:06	-28.6	Dark	Up	42.6	123.4	Up	06:12:08 - 06:20:03	5672
Chiloquin	06:16:07	-29.5	Dark	Up	43.1	122.0	Up	06:12:10 - 06:20:05	5594
Klamath Falls	06:16:08	-29.8	Dark	Up	43.3	121.8	Up	06:12:10 - 06:20:05	5568
Fall River/Burney	06:16:08	-31.0	Dark	Up	44.2	121.2	Up	06:12:10 - 06:20:05	5474
Cedarville	06:16:07	-31.1	Dark	Up	44.7	122.9	Up	06:12:10 - 06:20:05	5469
Greenville	06:16:08	-31.9	Dark	Up	45.0	120.9	Up	06:12:10 - 06:20:05	5396
Gimple	06:16:08	-32.0	Dark	Up	45.0	121.0	Up	06:12:10 - 06:20:05	5393
Quincy	06:16:08	-32.1	Dark	Up	45.1	120.7	Up	06:12:10 - 06:20:05	5381
Portola	06:16:08	-32.4	Dark	Up	45.4	121.1	Up	06:12:10 - 06:20:05	5357
Reno	06:16:08	-32.9	Dark	Up	46.0	121.6	Up	06:12:10 - 06:20:05	5316
Carson City	06:16:08	-33.2	Dark	Up	46.2	121.3	Up	06:12:10 - 06:20:05	5289
Gardnerville	06:16:08	-33.4	Dark	Up	46.4	121.1	Up	06:12:10 - 06:20:05	5270
Yerington	06:16:08	-33.6	Dark	Up	46.7	121.8	Up	06:12:10 - 06:20:05	5253
Hawthorne	06:16:08	-34.3	Dark	Up	47.3	121.9	Up	06:12:10 - 06:20:05	5201
Lee Vining	06:16:08	-34.5	Dark	Up	47.3	120.9	Up	06:12:10 - 06:20:05	5177
Bishop	06:16:08	-35.3	Dark	Up	48.1	121.1	Up	06:12:10 - 06:20:05	5106
Beatty	06:16:08	-36.4	Dark	Up	49.5	122.4	Up	06:12:10 - 06:20:05	5013
Dunrhomin	06:15:29	-36.6	Dark	Up	54.0	140.2	Up	06:11:32 - 06:19:27	4897
Nikitin	06:15:29	-36.8	Dark	Up	54.1	140.1	Up	06:11:32 - 06:19:27	4883
CU-SBO	06:15:30	-36.9	Dark	Up	54.1	139.9	Up	06:11:33 - 06:19:28	4880
Wildwood	06:16:08	-38.1	Dark	Up	49.6	117.6	Up	06:12:10 - 06:20:05	4871
Laughlin/Bullhead City	06:16:08	-38.8	Dark	Up	51.9	123.1	Up	06:12:10 - 06:20:05	4798
Patrick	06:16:08	-38.8	Dark	Up	52.2	124.2	Up	06:12:10 - 06:20:05	4793
Idyllwild	06:16:08	-39.2	Dark	Up	51.1	119.2	Up	06:12:10 - 06:20:05	4768
Lake Havasu City	06:16:08	-39.5	Dark	Up	52.4	122.6	Up	06:12:10 - 06:20:05	4735
Calipatria	06:16:08	-40.2	Dark	Up	52.3	119.8	Up	06:12:10 - 06:20:05	4672
Yuma	06:16:08	-40.9	Dark	Up	53.1	120.3	Up	06:12:10 - 06:20:05	4602
George/Scottsdale	06:16:08	-41.0	Dark	Up	54.5	124.7	Up	06:12:10 - 06:20:05	4582

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 523727, (2024/08/21 06:15UT)
Object            RA         Dec     mag  sep  mel
Markab         23:04:45.8 +15:12:18  2.5  6.93  21
42Zet Peg      22:41:27.8 +10:49:53  3.4  1.05  20
PPM 141780     22:43:42.7 +10:56:18  7.3  0.77  19
PPM 173402     22:45:59.6 +09:58:49  9.8  0.36  18
PPM 141795     22:44:42.2 +10:14:02 11.2  0.06  19
523727         22:44:57.2 +10:13:51 16.9        19
Positions are for J2000

Event circumstances last updated at 2024/03/19 03:35:28 UT

RECON