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 10:46:16 UTC

J2000 position of star is 16:42:21.6 +00:36:46
Equinox of date position of star is 16:43:21.6 +00:34:37
Stellar brightness G=14.0, use SENSEUP=64
Star is 131 degrees from the moon. Moon is 37% illuminated.
TNO apparent brightness V=21.4

[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 337 seconds.
The 1-sigma cross-track error in the shadow position is 4650 km.
The sky-plane scale is 26841.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 22.1 sec chord
Diameter=186.6 km assuming a 30% albedo -- 9.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 505624, (2023/04/26 10:46UT)
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 2.7 sigma about the mid-time.
The median site spacing is 12.4 km RECON observability=1.0 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:47:48 -16.2 AT Down 40.4 188.1 Up 10:32:48 - 11:02:48 1299
Summerland 10:47:49 -16.5 AT Down 40.8 187.8 Up 10:32:49 - 11:02:49 1272
Penticton 10:47:47 -16.5 AT Down 40.8 187.9 Up 10:32:47 - 11:02:47 1272
Okanagan Falls 10:47:47 -16.7 AT Down 41.0 187.9 Up 10:32:47 - 11:02:47 1259
Oliver 10:47:47 -16.8 AT Down 41.2 188.0 Up 10:32:47 - 11:02:47 1250
Anarchist Mountain Observatory 10:47:46 -16.8 AT Down 41.3 188.2 Up 10:32:46 - 11:02:46 1246
Oroville 10:47:46 -16.9 AT Down 41.4 188.1 Up 10:32:46 - 11:02:46 1239
Tonasket 10:47:46 -17.1 AT Down 41.6 188.2 Up 10:32:46 - 11:02:46 1225
Okanogan 10:47:46 -17.4 AT Down 42.0 188.0 Up 10:32:46 - 11:02:46 1199
SwRI 10:46:38 -14.8 AT Down 46.6 209.8 Up 10:31:38 - 11:01:38 1189
Brewster 10:47:46 -17.7 AT Down 42.3 187.8 Up 10:32:46 - 11:02:46 1175
Manson/Chelan 10:47:46 -18.0 AT Down 42.5 187.3 Up 10:32:46 - 11:02:46 1149
Wenatchee 10:47:46 -18.4 Dark Down 43.0 187.1 Up 10:32:46 - 11:02:46 1113
Pasco 10:47:39 -18.7 Dark Down 44.0 188.9 Up 10:32:39 - 11:02:39 1081
Ellensburg 10:47:46 -18.8 Dark Down 43.4 186.9 Up 10:32:46 - 11:02:46 1078
PNWRO 10:47:38 -18.7 Dark Down 44.2 189.2 Up 10:32:38 - 11:02:38 1073
Yakima 10:47:45 -19.1 Dark Down 43.8 186.9 Up 10:32:45 - 11:02:45 1051
Toppenish/White Swan 10:47:44 -19.2 Dark Down 44.0 187.1 Up 10:32:44 - 11:02:44 1043
Goldendale 10:47:44 -19.8 Dark Down 44.6 186.6 Up 10:32:44 - 11:02:44 991
The Dalles 10:47:45 -20.1 Dark Down 44.9 186.1 Up 10:32:45 - 11:02:45 963
Maupin 10:47:44 -20.4 Dark Down 45.3 186.3 Up 10:32:44 - 11:02:44 939
Madras/Culver 10:47:43 -20.8 Dark Down 45.8 186.3 Up 10:32:43 - 11:02:43 900
Redmond 10:47:42 -21.1 Dark Down 46.2 186.3 Up 10:32:42 - 11:02:42 874
Sisters 10:47:44 -21.3 Dark Down 46.2 185.7 Up 10:32:44 - 11:02:44 861
Bend 10:47:43 -21.3 Dark Down 46.4 186.1 Up 10:32:43 - 11:02:43 854
Oregon Observatory 10:47:42 -21.5 Dark Down 46.6 185.9 Up 10:32:42 - 11:02:42 837
La Pine/Gilchrist 10:47:42 -21.7 Dark Down 46.8 185.9 Up 10:32:42 - 11:02:42 821
North Lake 10:47:39 -21.7 Dark Down 47.2 186.8 Up 10:32:39 - 11:02:39 813
Paisley 10:47:37 -21.9 Dark Down 47.7 187.4 Up 10:32:37 - 11:02:37 788
Lakeview 10:47:35 -22.2 Dark Down 48.2 187.7 Up 10:32:35 - 11:02:35 760
Chiloquin 10:47:41 -22.7 Dark Down 47.9 185.5 Up 10:32:41 - 11:02:41 729
Cedarville 10:47:33 -22.6 Dark Down 48.8 188.1 Up 10:32:33 - 11:02:33 720
Klamath Falls 10:47:41 -22.9 Dark Down 48.3 185.6 Up 10:32:41 - 11:02:41 708
Tulelake 10:47:38 -22.9 Dark Down 48.5 186.1 Up 10:32:38 - 11:02:38 700
Fall River/Burney 10:47:36 -23.6 Dark Down 49.4 186.3 Up 10:32:36 - 11:02:36 638
Susanville 10:47:33 -23.6 Dark Down 50.0 187.5 Up 10:32:33 - 11:02:33 621
Gimple 10:47:33 -23.9 Dark Down 50.3 187.2 Up 10:32:33 - 11:02:33 592
Reno 10:47:28 -23.8 Dark Down 50.7 188.9 Up 10:32:28 - 11:02:28 590
Greenville 10:47:33 -24.0 Dark Down 50.3 187.1 Up 10:32:33 - 11:02:33 589
Tonopah 10:47:15 -23.3 Dark Down 51.8 193.3 Up 10:32:15 - 11:02:15 586
Portola 10:47:30 -24.0 Dark Down 50.5 187.9 Up 10:32:30 - 11:02:30 584
Yerington 10:47:24 -23.8 Dark Down 51.2 190.1 Up 10:32:24 - 11:02:24 576
Quincy 10:47:33 -24.1 Dark Down 50.5 187.1 Up 10:32:33 - 11:02:33 574
Carson City 10:47:27 -24.0 Dark Down 51.1 189.0 Up 10:32:27 - 11:02:27 565
Hawthorne 10:47:21 -23.8 Dark Down 51.6 191.0 Up 10:32:21 - 11:02:21 563
Gardnerville 10:47:26 -24.2 Dark Down 51.3 189.1 Up 10:32:26 - 11:02:26 549
Indian Springs 10:47:06 -23.4 Dark Down 52.9 196.2 Up 10:32:06 - 11:02:06 539
Henderson 10:47:02 -23.3 Dark Down 53.3 197.5 Up 10:32:02 - 11:02:02 528
Patrick 10:46:56 -23.0 Dark Down 53.6 199.6 Up 10:31:56 - 11:01:56 527
Beatty 10:47:10 -23.8 Dark Down 52.8 194.4 Up 10:32:10 - 11:02:10 519
Kingman/Dolan Springs 10:46:56 -23.3 Dark Down 53.9 199.4 Up 10:31:56 - 11:01:56 502
Lee Vining 10:47:22 -24.5 Dark Down 52.2 190.3 Up 10:32:22 - 11:02:22 501
Searchlight/Boulder City 10:47:00 -23.6 Dark Down 53.8 197.8 Up 10:32:00 - 11:02:00 487
Bishop 10:47:17 -24.5 Dark Down 52.7 191.6 Up 10:32:17 - 11:02:17 486
George/Scottsdale 10:46:44 -22.7 Dark Down 54.6 203.6 Up 10:31:44 - 11:01:44 484
Laughlin/Bullhead City 10:46:58 -23.6 Dark Down 54.0 198.5 Up 10:31:58 - 11:01:58 479
Mohave Valley 10:46:57 -23.8 Dark Down 54.3 198.7 Up 10:31:57 - 11:01:57 459
Lone Pine 10:47:15 -24.8 Dark Down 53.4 192.4 Up 10:32:15 - 11:02:15 443
Lake Havasu City 10:46:55 -23.9 Dark Down 54.6 199.2 Up 10:31:55 - 11:01:55 439
Parker 10:46:54 -24.1 Dark Down 54.9 199.4 Up 10:31:54 - 11:01:54 413
Blythe 10:46:54 -24.6 Dark Down 55.5 199.2 Up 10:31:54 - 11:01:54 360
Yuma 10:46:52 -25.2 Dark Down 56.4 199.6 Up 10:31:52 - 11:01:52 287
Calipatria 10:46:57 -25.5 Dark Down 56.2 197.8 Up 10:31:57 - 11:01:57 282
Idyllwild 10:47:03 -25.9 Dark Down 55.9 195.5 Up 10:32:03 - 11:02:03 279
CPSLO 10:47:21 -27.2 Dark Down 55.0 188.3 Up 10:32:21 - 11:02:21 234
Wildwood 10:47:11 -26.8 Dark Down 55.9 192.2 Up 10:32:11 - 11:02:11 226

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 10:46UT)
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 2019/08/02 22:37:40 UT

Marc W. Buie, Southwest Research Institute

RECON