RECON: TNO occultation with 523718

Event between (523718) 14KZ101 and star GA0820:10044663 with event index number of 2330465

Geocentric closest approach at 2027/08/11 06:52:14 UTC

J2000 position of star is 18:30:54.3 -06:15:53
Equinox of date position of star is 18:32:13.1 -06:14:45
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 33 degrees from the moon. Moon is 70% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 36.4 AU from the Sun and 35.6 AU from the Earth.
Apparent velocity is 17.4 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 538 seconds.
The 1-sigma cross-track error in the shadow position is 3913 km.
The sky-plane scale is 25838.8 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=316.2 km assuming a 5% albedo -- 17.4 sec chord
Diameter=129.1 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523718, (2027/08/11 06:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.3 -26:29:27  0.9 35.26   3
60Bet Oph      17:44:50.3 +04:33:27  2.8 16.05  35
PPM 201808     18:31:42.9 -05:42:13  6.2  0.57  33
PPM 201829     18:33:27.0 -06:05:33  8.2  0.30  33
523718         18:32:23.2 -06:14:36 17.0        33
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 1.7 sigma about the mid-time.
The median site spacing is 27.4 km RECON observability=1.0 and success probability=12.5%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	06:48:41	-21.8	Dark	Up	29.5	207.2	Low	06:33:41 - 07:03:41	1913
Victoria	06:48:50	-23.1	Dark	Up	32.3	204.4	Up	06:33:50 - 07:03:50	1856
Peachland	06:48:39	-22.8	Dark	Up	30.2	208.1	Up	06:33:39 - 07:03:39	1830
Kelowna	06:48:37	-22.8	Dark	Up	30.0	208.4	Low	06:33:37 - 07:03:37	1828
Summerland	06:48:38	-23.0	Dark	Up	30.3	208.2	Up	06:33:38 - 07:03:38	1816
Penticton	06:48:38	-23.1	Dark	Up	30.3	208.4	Up	06:33:38 - 07:03:38	1808
Oliver	06:48:37	-23.4	Dark	Up	30.6	208.5	Up	06:33:37 - 07:03:37	1782
Anarchist Mountain Observatory	06:48:37	-23.6	Dark	Up	30.7	208.7	Up	06:33:37 - 07:03:37	1764
Okanogan	06:48:37	-24.2	Dark	Up	31.3	208.7	Up	06:33:37 - 07:03:37	1724
Brewster	06:48:39	-24.4	Dark	Up	31.6	208.5	Up	06:33:39 - 07:03:39	1710
Manson/Chelan	06:48:41	-24.5	Dark	Up	31.9	208.2	Up	06:33:41 - 07:03:41	1707
Wenatchee	06:48:40	-24.9	Dark	Up	32.4	208.2	Up	06:33:40 - 07:03:40	1677
Ellensburg	06:48:41	-25.2	Dark	Up	32.8	208.0	Up	06:33:41 - 07:03:41	1653
Yakima	06:48:42	-25.6	Dark	Up	33.2	208.2	Up	06:33:42 - 07:03:42	1624
Sleaford	06:47:59	-22.5	Dark	Down	23.3	221.6	Low	06:32:59 - 07:02:59	1603
Toppenish/White Swan	06:48:41	-25.8	Dark	Up	33.3	208.4	Up	06:33:41 - 07:03:41	1602
The Dalles	06:48:43	-26.4	Dark	Up	34.3	207.8	Up	06:33:43 - 07:03:43	1569
Maupin	06:48:44	-26.8	Dark	Up	34.6	208.0	Up	06:33:44 - 07:03:44	1534
PNWRO	06:48:35	-26.5	Dark	Up	33.2	210.2	Up	06:33:35 - 07:03:35	1525
Sisters	06:48:45	-27.5	Dark	Up	35.6	207.8	Up	06:33:45 - 07:03:45	1484
Bend	06:48:44	-27.8	Dark	Up	35.7	208.1	Up	06:33:44 - 07:03:44	1456
Oregon Observatory	06:48:45	-27.9	Dark	Up	35.9	208.0	Up	06:33:45 - 07:03:45	1448
Chiloquin	06:48:47	-29.0	Dark	Up	37.2	208.0	Up	06:33:47 - 07:03:47	1359
Klamath Falls	06:48:47	-29.3	Dark	Up	37.5	208.2	Up	06:33:47 - 07:03:47	1329
Fall River/Burney	06:48:45	-30.5	Dark	Up	38.4	209.1	Up	06:33:45 - 07:03:45	1222
Cedarville	06:48:40	-30.4	Dark	Up	37.5	210.3	Up	06:33:40 - 07:03:40	1217
Greenville	06:48:44	-31.5	Dark	Up	39.0	210.0	Up	06:33:44 - 07:03:44	1132
Gimple	06:48:43	-31.5	Dark	Up	39.0	210.1	Up	06:33:43 - 07:03:43	1129
Quincy	06:48:44	-31.7	Dark	Up	39.2	210.1	Up	06:33:44 - 07:03:44	1115
Portola	06:48:42	-31.9	Dark	Up	39.1	210.7	Up	06:33:42 - 07:03:42	1088
Reno	06:48:40	-32.4	Dark	Up	39.1	211.6	Up	06:33:40 - 07:03:40	1042
Carson City	06:48:39	-32.7	Dark	Up	39.4	211.7	Up	06:33:39 - 07:03:39	1012
Gardnerville	06:48:39	-32.9	Dark	Up	39.5	211.9	Up	06:33:39 - 07:03:39	990
Yerington	06:48:37	-33.1	Dark	Up	39.3	212.6	Up	06:33:37 - 07:03:37	972
Hawthorne	06:48:35	-33.6	Dark	Up	39.4	213.4	Up	06:33:35 - 07:03:35	913
Lee Vining	06:48:38	-34.0	Dark	Up	40.1	213.1	Up	06:33:38 - 07:03:38	884
Bishop	06:48:35	-34.8	Dark	Up	40.3	214.2	Up	06:33:35 - 07:03:35	806
Beatty	06:48:28	-35.7	Dark	Up	39.9	216.3	Up	06:33:28 - 07:03:28	705
Dunrhomin	06:47:46	-34.3	Dark	Down	31.5	226.6	Up	06:32:46 - 07:02:46	590
Nikitin	06:47:46	-34.5	Dark	Down	31.6	226.7	Up	06:32:46 - 07:02:46	574
CU-SBO	06:47:46	-34.5	Dark	Down	31.7	226.6	Up	06:32:46 - 07:02:46	571
Wildwood	06:48:38	-37.8	Dark	Up	43.1	215.6	Up	06:33:38 - 07:03:38	529
Laughlin/Bullhead City	06:48:21	-37.8	Dark	Up	40.2	219.6	Up	06:33:21 - 07:03:21	470
Patrick	06:48:18	-37.8	Dark	Up	39.7	220.2	Up	06:33:18 - 07:03:18	465
Idyllwild	06:48:30	-38.7	Dark	Up	42.4	218.0	Up	06:33:30 - 07:03:30	424
Lake Havasu City	06:48:20	-38.6	Dark	Up	40.6	220.2	Up	06:33:20 - 07:03:20	400
Calipatria	06:48:26	-39.6	Dark	Up	42.3	219.7	Up	06:33:26 - 07:03:26	322
Yuma	06:48:22	-40.2	Dark	Up	42.1	220.9	Up	06:33:22 - 07:03:22	249
George/Scottsdale	06:48:10	-39.8	Dark	Up	39.8	223.3	Up	06:33:10 - 07:03:10	236

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 523718, (2027/08/11 06:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 35.26   3
60Bet Oph      17:43:28.3 +04:34:06  2.8 16.05  35
PPM 201808     18:30:14.3 -05:43:28  6.2  0.57  33
PPM 201829     18:31:58.2 -06:06:52  8.2  0.30  33
523718         18:30:54.3 -06:15:53 17.0        33
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:28:04 UT

RECON