RECON: TNO occultation with 505624

Event between (505624) 14GU53 and star GA0900:04737082 with event index number of 1234870

Geocentric closest approach at 2023/04/26 10:34:50 UTC

J2000 position of star is 16:42:21.6 +00:36:46
Equinox of date position of star is 16:43:24.4 +00:34:31
Stellar brightness G=14.0, use SENSEUP=64
Star is 131 degrees from the moon. Moon is 36% illuminated.
TNO apparent brightness V=25.8

[RECON map]
TNO is 37.8 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 20.7 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is 1693 km.
The sky-plane scale is 26841.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=436.5 km assuming a 5% albedo -- 2.9 sec chord
Diameter=178.2 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 505624, (2023/04/26 10:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.5 -26:28:54  0.9 27.22 140
1Del Oph       16:15:34.2 -03:45:09  2.7  8.22 128
14 Oph         16:42:53.5 +01:08:18  6.0  0.59 131
PPM 163005     16:43:51.6 +00:29:00  8.9  0.12 131
PPM 163006     16:43:54.9 +00:34:18 11.3  0.09 131
505624         16:43:33.0 +00:34:12 14.0       131
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 13.2 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)
Clarence Fulton 10:36:29 -17.1 AT Down 40.3 184.5 Up 10:23:02 - 10:49:55 10134
Kelowna 10:36:28 -17.5 AT Down 40.7 184.3 Up 10:23:02 - 10:49:55 10104
Peachland 10:36:29 -17.7 AT Down 40.8 183.9 Up 10:23:02 - 10:49:55 10087
Summerland 10:36:29 -17.8 AT Down 40.9 184.0 Up 10:23:02 - 10:49:55 10081
Penticton 10:36:30 -17.8 AT Down 41.0 184.2 Up 10:23:04 - 10:49:57 10081
Oliver 10:36:27 -18.0 Dark Down 41.4 184.2 Up 10:23:01 - 10:49:54 10058
Anarchist Mountain Observatory 10:36:27 -18.1 Dark Down 41.5 184.5 Up 10:23:00 - 10:49:53 10055
Tonasket 10:36:25 -18.3 Dark Down 41.8 184.4 Up 10:22:59 - 10:49:52 10032
Okanogan 10:36:27 -18.7 Dark Down 42.2 184.2 Up 10:23:00 - 10:49:53 10005
Niwot 10:35:18 -16.5 AT Down 47.5 206.0 Up 10:21:52 - 10:48:45 9998
SwRI 10:35:18 -16.7 AT Down 47.6 205.9 Up 10:21:52 - 10:48:45 9987
Brewster 10:36:25 -19.0 Dark Down 42.5 183.9 Up 10:22:59 - 10:49:52 9981
Manson/Chelan 10:36:27 -19.3 Dark Down 42.7 183.5 Up 10:23:01 - 10:49:54 9955
Entiat 10:36:27 -19.5 Dark Down 42.9 183.4 Up 10:23:00 - 10:49:53 9938
Wenatchee 10:36:27 -19.7 Dark Down 43.2 183.3 Up 10:23:00 - 10:49:53 9917
Pasco 10:36:20 -20.0 Dark Down 44.3 185.0 Up 10:22:53 - 10:49:46 9884
Victoria 10:36:38 -20.1 Dark Down 42.1 179.1 Up 10:23:11 - 10:50:04 9884
Ellensburg 10:36:26 -20.1 Dark Down 43.6 183.0 Up 10:22:59 - 10:49:52 9883
PNWRO 10:36:19 -20.1 Dark Down 44.5 185.3 Up 10:22:53 - 10:49:46 9876
Yakima 10:36:27 -20.4 Dark Down 44.0 183.0 Up 10:23:00 - 10:49:53 9855
Toppenish/White Swan 10:36:25 -20.5 Dark Down 44.2 183.2 Up 10:22:58 - 10:49:51 9846
Goldendale 10:36:24 -21.1 Dark Down 44.8 182.6 Up 10:22:58 - 10:49:51 9794
The Dalles 10:36:26 -21.5 Dark Down 45.0 182.1 Up 10:22:59 - 10:49:52 9765
Maupin 10:36:25 -21.7 Dark Down 45.4 182.3 Up 10:22:59 - 10:49:52 9740
Redmond 10:36:24 -22.5 Dark Down 46.3 182.2 Up 10:22:57 - 10:49:50 9674
Sisters 10:36:27 -22.6 Dark Down 46.3 181.6 Up 10:23:00 - 10:49:53 9660
Bend 10:36:24 -22.7 Dark Down 46.5 182.0 Up 10:22:58 - 10:49:51 9653
Oregon Observatory 10:36:24 -22.9 Dark Down 46.7 181.8 Up 10:22:57 - 10:49:50 9636
La Pine/Gilchrist 10:36:24 -23.1 Dark Down 46.9 181.7 Up 10:22:57 - 10:49:50 9619
North Lake 10:36:20 -23.1 Dark Down 47.3 182.6 Up 10:22:53 - 10:49:46 9611
Paisley 10:36:18 -23.4 Dark Down 47.9 183.2 Up 10:22:52 - 10:49:45 9585
Lakeview 10:36:16 -23.6 Dark Down 48.4 183.5 Up 10:22:50 - 10:49:43 9556
Cedarville 10:36:15 -24.0 Dark Down 49.0 183.8 Up 10:22:49 - 10:49:42 9515
Klamath Falls 10:36:22 -24.3 Dark Down 48.4 181.3 Up 10:22:55 - 10:49:48 9504
Fall River/Burney 10:36:17 -25.0 Dark Down 49.6 181.9 Up 10:22:51 - 10:49:44 9432
Susanville 10:36:14 -25.1 Dark Down 50.2 183.1 Up 10:22:48 - 10:49:41 9414
Gimple 10:36:14 -25.4 Dark Down 50.4 182.8 Up 10:22:47 - 10:49:40 9385
Reno 10:36:09 -25.3 Dark Down 51.0 184.5 Up 10:22:43 - 10:49:36 9382
Greenville 10:36:15 -25.5 Dark Down 50.4 182.7 Up 10:22:48 - 10:49:41 9382
Portola 10:36:12 -25.5 Dark Down 50.8 183.4 Up 10:22:46 - 10:49:39 9376
Tonopah 10:35:57 -25.0 Dark Down 52.2 188.8 Up 10:22:30 - 10:49:23 9376
Yerington 10:36:07 -25.4 Dark Down 51.5 185.6 Up 10:22:40 - 10:49:33 9367
Quincy 10:36:14 -25.6 Dark Down 50.6 182.7 Up 10:22:47 - 10:49:40 9367
Carson City 10:36:09 -25.6 Dark Down 51.3 184.5 Up 10:22:42 - 10:49:35 9356
Hawthorne 10:36:02 -25.4 Dark Down 51.9 186.4 Up 10:22:36 - 10:49:29 9354
Gardnerville 10:36:08 -25.7 Dark Down 51.6 184.6 Up 10:22:41 - 10:49:34 9340
Indian Springs 10:35:48 -25.1 Dark Down 53.5 191.6 Up 10:22:21 - 10:49:14 9326
DCO 10:35:34 -24.6 Dark Down 54.4 196.2 Up 10:22:08 - 10:49:01 9320
Henderson 10:35:44 -25.1 Dark Down 53.9 192.9 Up 10:22:17 - 10:49:10 9315
Patrick 10:35:38 -24.8 Dark Down 54.3 194.9 Up 10:22:12 - 10:49:05 9314
Beatty 10:35:52 -25.5 Dark Down 53.3 189.7 Up 10:22:25 - 10:49:18 9307
Lee Vining 10:36:03 -26.1 Dark Down 52.5 185.7 Up 10:22:37 - 10:49:30 9291
Kingman/Dolan Springs 10:35:38 -25.1 Dark Down 54.5 194.7 Up 10:22:11 - 10:49:04 9289
Bishop 10:36:00 -26.1 Dark Down 53.0 187.0 Up 10:22:33 - 10:49:26 9275
Searchlight/Boulder City 10:35:42 -25.4 Dark Down 54.4 193.1 Up 10:22:16 - 10:49:09 9273
George/Scottsdale 10:35:27 -24.6 Dark Down 55.4 198.9 Up 10:22:01 - 10:48:54 9268
Laughlin/Bullhead City 10:35:40 -25.4 Dark Down 54.7 193.8 Up 10:22:14 - 10:49:07 9265
Mohave Valley 10:35:40 -25.6 Dark Down 54.9 193.9 Up 10:22:14 - 10:49:07 9244
Lake Havasu City 10:35:37 -25.7 Dark Down 55.3 194.4 Up 10:22:10 - 10:49:03 9223
Parker 10:35:37 -25.9 Dark Down 55.6 194.6 Up 10:22:10 - 10:49:03 9197
Blythe 10:35:37 -26.4 Dark Down 56.2 194.3 Up 10:22:10 - 10:49:03 9143
Yuma 10:35:34 -27.0 Dark Down 57.1 194.6 Up 10:22:08 - 10:49:01 9069
Calipatria 10:35:39 -27.3 Dark Down 56.8 192.8 Up 10:22:13 - 10:49:06 9064
Idyllwild 10:35:45 -27.6 Dark Down 56.4 190.6 Up 10:22:19 - 10:49:12 9062
CPSLO 10:36:03 -28.9 Dark Down 55.3 183.4 Up 10:22:37 - 10:49:30 9018
Wildwood 10:35:53 -28.5 Dark Down 56.3 187.1 Up 10:22:27 - 10:49:20 9010

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 505624, (2023/04/26 10:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.22 140
1Del Oph       16:14:20.7 -03:41:42  2.7  8.22 128
14 Oph         16:41:42.4 +01:10:53  6.0  0.59 131
PPM 163005     16:42:40.2 +00:31:34  8.9  0.12 131
PPM 163006     16:42:43.5 +00:36:51 11.3  0.09 131
505624         16:42:21.6 +00:36:46 14.0       131
Positions are for J2000

Event circumstances last updated at 2020/07/06 21:42:39 UT

Marc W. Buie, Southwest Research Institute

RECON