RECON: TNO occultation with 523712

Event between (523712) 14JS80 and star GA0700:34425618 with event index number of 2331687

Geocentric closest approach at 2027/11/20 01:38:17 UTC

J2000 position of star is 21:00:43.6 -19:06:11
Equinox of date position of star is 21:02:06.8 -19:00:22
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 176 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 40.1 AU from the Sun and 40.4 AU from the Earth.
Apparent velocity is 13.0 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 240 seconds.
The 1-sigma cross-track error in the shadow position is 1754 km.
The sky-plane scale is 29286.1 km/arcsec.

The object has an absolute magnitude Hv=5.7
Diameter=430.5 km assuming a 5% albedo -- 34.3 sec chord
Diameter=175.8 km assuming a 30% albedo -- 14.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523712, (2027/11/20 01:27UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:11.0 -29:28:25  1.2 28.53 151
22Eta Cap      21:05:59.3 -19:44:36  4.8  1.15 176
20 Cap         21:01:11.0 -18:55:32  6.7  0.27 176
PPM 238219     21:01:57.4 -19:07:33 10.0  0.16 176
523712         21:02:18.4 -18:59:33 13.9       176
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 3.8 sigma about the mid-time.
The median site spacing is 30.1 km RECON observability=0.1 and success probability=0.8%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	01:41:01	-14.1	AT	Down	19.8	188.6	Really Low	01:26:01 - 01:56:01	3880
Victoria	01:40:45	-11.6	NT	Down	22.2	185.6	Low	01:25:45 - 01:55:45	3857
Peachland	01:41:05	-14.3	AT	Down	20.7	189.3	Low	01:26:05 - 01:56:05	3828
Kelowna	01:41:06	-14.5	AT	Down	20.5	189.6	Low	01:26:06 - 01:56:06	3826
Summerland	01:41:05	-14.3	AT	Down	20.8	189.4	Low	01:26:05 - 01:56:05	3820
Penticton	01:41:06	-14.4	AT	Down	20.9	189.5	Low	01:26:06 - 01:56:06	3814
Oliver	01:41:06	-14.3	AT	Down	21.2	189.5	Low	01:26:06 - 01:56:06	3799
Anarchist Mountain Observatory	01:41:07	-14.4	AT	Down	21.4	189.7	Low	01:26:07 - 01:56:07	3787
Okanogan	01:41:06	-14.1	AT	Down	22.0	189.5	Low	01:26:06 - 01:56:06	3763
Brewster	01:41:06	-13.9	AT	Down	22.3	189.4	Low	01:26:06 - 01:56:06	3756
Manson/Chelan	01:41:03	-13.6	AT	Down	22.6	189.0	Low	01:26:03 - 01:56:03	3755
Wenatchee	01:41:02	-13.4	AT	Down	23.0	188.8	Low	01:26:02 - 01:56:02	3737
Ellensburg	01:41:00	-13.1	AT	Down	23.5	188.6	Low	01:26:00 - 01:56:00	3723
Yakima	01:41:01	-13.0	AT	Down	23.9	188.6	Low	01:26:01 - 01:56:01	3704
Toppenish/White Swan	01:41:02	-13.1	AT	Down	24.1	188.8	Low	01:26:02 - 01:56:02	3690
The Dalles	01:40:59	-12.3	AT	Down	24.9	188.1	Low	01:25:59 - 01:55:59	3671
Maupin	01:40:57	-12.3	AT	Down	25.3	188.2	Low	01:25:57 - 01:55:57	3648
PNWRO	01:41:10	-14.0	AT	Down	24.3	190.4	Low	01:26:10 - 01:56:10	3635
Sisters	01:40:53	-11.7	NT	Down	26.2	187.7	Low	01:25:53 - 01:55:53	3617
Bend	01:40:55	-11.8	NT	Down	26.5	188.0	Low	01:25:55 - 01:55:55	3598
Sleaford	01:42:12	-23.4	Dark	Down	16.0	202.9	Really Low	01:27:12 - 01:57:12	3596
Oregon Observatory	01:40:55	-11.7	NT	Down	26.6	187.9	Low	01:25:55 - 01:55:55	3593
Chiloquin	01:40:52	-11.0	NT	Down	28.0	187.5	Low	01:25:52 - 01:55:52	3534
Klamath Falls	01:40:52	-10.9	NT	Down	28.3	187.6	Low	01:25:52 - 01:55:52	3513
Fall River/Burney	01:40:54	-10.9	NT	Down	29.4	188.1	Low	01:25:54 - 01:55:54	3438
Cedarville	01:41:03	-11.9	NT	Down	28.8	189.5	Low	01:26:03 - 01:56:03	3434
Greenville	01:40:57	-11.0	NT	Down	30.3	188.7	Up	01:25:57 - 01:55:57	3375
Gimple	01:40:59	-11.0	NT	Down	30.3	188.8	Up	01:25:59 - 01:55:59	3373
Quincy	01:40:55	-10.9	NT	Down	30.5	188.7	Up	01:25:55 - 01:55:55	3363
Portola	01:40:58	-11.2	NT	Down	30.6	189.3	Up	01:25:58 - 01:55:58	3344
Reno	01:41:03	-11.6	NT	Down	30.7	190.0	Up	01:26:03 - 01:56:03	3311
Carson City	01:41:04	-11.6	NT	Down	31.1	190.1	Up	01:26:04 - 01:56:04	3289
Gardnerville	01:41:06	-11.5	NT	Down	31.3	190.2	Up	01:26:06 - 01:56:06	3273
Yerington	01:41:09	-12.0	AT	Down	31.2	190.8	Up	01:26:09 - 01:56:09	3260
Hawthorne	01:41:13	-12.3	AT	Down	31.6	191.5	Up	01:26:13 - 01:56:13	3217
Lee Vining	01:41:07	-11.8	NT	Down	32.2	191.0	Up	01:26:07 - 01:56:07	3196
Bishop	01:41:12	-12.2	AT	Down	32.7	191.9	Up	01:26:12 - 01:56:12	3138
Beatty	01:41:22	-13.3	AT	Down	32.8	193.8	Up	01:26:22 - 01:56:22	3061
Wildwood	01:41:09	-11.1	NT	Down	35.9	192.1	Up	01:26:09 - 01:56:09	2931
Dunrhomin	01:42:32	-23.1	Dark	Down	26.5	205.6	Low	01:27:32 - 01:57:32	2918
Nikitin	01:42:33	-23.0	Dark	Down	26.7	205.6	Low	01:27:33 - 01:57:33	2907
CU-SBO	01:42:32	-23.0	Dark	Down	26.8	205.5	Low	01:27:32 - 01:57:32	2905
Laughlin/Bullhead City	01:41:36	-14.7	AT	Down	34.0	196.6	Up	01:26:36 - 01:56:36	2880
Patrick	01:41:42	-15.3	AT	Down	33.6	197.3	Up	01:26:42 - 01:56:42	2875
Idyllwild	01:41:21	-12.5	AT	Down	35.9	194.4	Up	01:26:21 - 01:56:21	2850
Lake Havasu City	01:41:39	-14.7	AT	Down	34.6	197.0	Up	01:26:39 - 01:56:39	2827
Calipatria	01:41:28	-13.4	AT	Down	36.2	195.9	Up	01:26:28 - 01:56:28	2770
Yuma	01:41:35	-14.0	AT	Down	36.4	197.0	Up	01:26:35 - 01:56:35	2711
George/Scottsdale	01:41:55	-16.6	AT	Down	34.7	200.0	Up	01:26:55 - 01:56:55	2694

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 523712, (2027/11/20 01:27UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 28.53 151
22Eta Cap      21:04:24.3 -19:51:20  4.8  1.15 176
20 Cap         20:59:36.2 -19:02:08  6.7  0.27 176
PPM 238219     21:00:22.5 -19:14:10 10.0  0.16 176
523712         21:00:43.6 -19:06:11 13.9       176
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:29:19 UT

RECON