RECON: TNO occultation with 523755

Event between (523755) 14WZ508 and star GA0780:04157843 with event index number of 2614841

Geocentric closest approach at 2023/02/13 06:28:24 UTC

J2000 position of star is 11:53:16.9 -10:14:45
Equinox of date position of star is 11:54:27.6 -10:22:27
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 47 degrees from the moon. Moon is 54% illuminated.
Apparent brightness V=22.5

[RECON map]
Object is 28.3 AU from the Sun and 27.5 AU from the Earth.
Apparent velocity is 18.2 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is 1497 km.
The sky-plane scale is 19955.4 km/arcsec.

The object has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 8.7 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523755, (2023/02/13 06:28UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:24.9 -11:16:53  1.0 22.59  26
4Gam Crv       12:16:59.9 -17:40:13  2.6  9.11  40
PPM 225208     12:00:20.4 -10:36:16  6.4  1.46  46
PPM 225145     11:57:56.7 -10:51:14  7.8  0.98  46
PPM 225036     11:53:36.6 -10:19:30  9.5  0.22  48
523755         11:54:27.9 -10:22:29 14.7        47
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 30.0 km RECON observability=0.2 and success probability=9.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:31:19 -50.2 Dark Down 17.4 134.9 Really Low 06:24:09 - 06:38:29 -759
Kamloops 06:31:58 -47.2 Dark Down 11.3 122.0 Really Low 06:24:48 - 06:39:08 -1045
Kelowna 06:31:59 -48.2 Dark Down 12.2 122.6 Really Low 06:24:49 - 06:39:09 -1087
Peachland 06:32:00 -48.2 Dark Down 12.1 122.4 Really Low 06:24:50 - 06:39:10 -1099
Summerland 06:32:00 -48.4 Dark Down 12.3 122.4 Really Low 06:24:50 - 06:39:10 -1108
Penticton 06:32:00 -48.5 Dark Down 12.4 122.5 Really Low 06:24:50 - 06:39:10 -1111
Oliver 06:32:01 -48.7 Dark Down 12.6 122.4 Really Low 06:24:51 - 06:39:11 -1135
Anarchist Mountain Observatory 06:32:02 -48.9 Dark Down 12.8 122.6 Really Low 06:24:52 - 06:39:12 -1144
Okanogan 06:32:04 -49.4 Dark Down 13.0 122.3 Really Low 06:24:54 - 06:39:14 -1192
Brewster 06:32:06 -49.5 Dark Down 13.0 122.1 Really Low 06:24:56 - 06:39:16 -1215
Manson/Chelan 06:32:07 -49.5 Dark Down 12.9 121.7 Really Low 06:24:57 - 06:39:17 -1235
Victoria 06:32:12 -47.6 Dark Down 10.7 119.2 Really Low 06:25:02 - 06:39:22 -1238
Wenatchee 06:32:09 -49.8 Dark Down 13.1 121.5 Really Low 06:24:59 - 06:39:19 -1271
Ellensburg 06:32:11 -50.0 Dark Down 13.2 121.2 Really Low 06:25:01 - 06:39:21 -1304
Yakima 06:32:13 -50.3 Dark Down 13.4 121.2 Really Low 06:25:03 - 06:39:23 -1334
Toppenish/White Swan 06:32:13 -50.5 Dark Down 13.6 121.2 Really Low 06:25:03 - 06:39:23 -1348
PNWRO 06:32:10 -51.5 Dark Down 14.7 122.4 Really Low 06:25:00 - 06:39:20 -1352
The Dalles 06:32:17 -50.7 Dark Down 13.5 120.5 Really Low 06:25:07 - 06:39:27 -1418
Maupin 06:32:19 -51.1 Dark Down 13.8 120.5 Really Low 06:25:09 - 06:39:29 -1447
Sisters 06:32:23 -51.5 Dark Down 13.9 119.9 Really Low 06:25:13 - 06:39:33 -1521
Bend 06:32:22 -51.8 Dark Down 14.2 120.0 Really Low 06:25:12 - 06:39:32 -1536
Oregon Observatory 06:32:23 -51.8 Dark Down 14.2 119.9 Really Low 06:25:13 - 06:39:33 -1551
Dunrhomin 06:31:49 -61.6 Dark Down 26.0 132.3 Low 06:24:39 - 06:38:59 -1571
Nikitin 06:31:49 -61.7 Dark Down 26.1 132.2 Low 06:24:39 - 06:38:59 -1586
CU-SBO 06:31:49 -61.8 Dark Down 26.1 132.1 Low 06:24:39 - 06:38:59 -1592
Chiloquin 06:32:29 -52.5 Dark Down 14.6 119.3 Really Low 06:25:19 - 06:39:39 -1660
Klamath Falls 06:32:29 -52.8 Dark Down 14.9 119.3 Really Low 06:25:19 - 06:39:39 -1686
Cedarville 06:32:28 -54.2 Dark Down 16.2 120.4 Really Low 06:25:18 - 06:39:38 -1715
Fall River/Burney 06:32:32 -53.8 Dark Down 15.7 119.3 Really Low 06:25:22 - 06:39:42 -1774
Gimple 06:32:34 -54.7 Dark Down 16.5 119.5 Really Low 06:25:24 - 06:39:44 -1839
Greenville 06:32:34 -54.7 Dark Down 16.4 119.4 Really Low 06:25:24 - 06:39:44 -1840
Quincy 06:32:35 -54.8 Dark Down 16.5 119.4 Really Low 06:25:25 - 06:39:45 -1857
Portola 06:32:34 -55.2 Dark Down 16.9 119.7 Really Low 06:25:24 - 06:39:44 -1859
Reno 06:32:33 -55.7 Dark Down 17.5 120.1 Really Low 06:25:23 - 06:39:43 -1870
Carson City 06:32:34 -56.0 Dark Down 17.7 120.1 Really Low 06:25:24 - 06:39:44 -1899
Yerington 06:32:33 -56.5 Dark Down 18.2 120.5 Really Low 06:25:23 - 06:39:43 -1904
Gardnerville 06:32:34 -56.2 Dark Down 17.8 120.0 Really Low 06:25:24 - 06:39:44 -1918
Hawthorne 06:32:33 -57.1 Dark Down 18.8 120.7 Really Low 06:25:23 - 06:39:43 -1934
Lee Vining 06:32:36 -57.2 Dark Down 18.8 120.2 Really Low 06:25:26 - 06:39:46 -1989
Bishop 06:32:35 -58.0 Dark Down 19.6 120.6 Really Low 06:25:25 - 06:39:45 -2027
Beatty 06:32:32 -59.3 Dark Down 20.9 121.7 Low 06:25:22 - 06:39:42 -2038
Patrick 06:32:27 -62.0 Dark Down 23.7 123.4 Low 06:25:17 - 06:39:37 -2114
Laughlin/Bullhead City 06:32:30 -61.8 Dark Down 23.3 122.7 Low 06:25:20 - 06:39:40 -2148
Lake Havasu City 06:32:30 -62.4 Dark Down 23.9 122.7 Low 06:25:20 - 06:39:40 -2202
George/Scottsdale 06:32:25 -64.4 Dark Down 26.0 124.3 Low 06:25:15 - 06:39:35 -2225
Idyllwild 06:32:40 -61.5 Dark Down 22.6 120.6 Low 06:25:30 - 06:39:50 -2310
Wildwood 06:32:44 -60.0 Dark Down 21.1 119.4 Low 06:25:34 - 06:39:54 -2314
Calipatria 06:32:37 -62.6 Dark Down 23.8 121.3 Low 06:25:27 - 06:39:47 -2344
Yuma 06:32:36 -63.5 Dark Down 24.6 121.8 Low 06:25:26 - 06:39:46 -2366

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 523755, (2023/02/13 06:28UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 22.59  26
4Gam Crv       12:15:48.1 -17:32:30  2.6  9.11  40
PPM 225208     11:59:09.3 -10:28:33  6.4  1.46  46
PPM 225145     11:56:45.7 -10:43:31  7.8  0.98  46
PPM 225036     11:52:25.6 -10:11:47  9.5  0.22  48
523755         11:53:16.9 -10:14:45 14.7        47
Positions are for J2000

Event circumstances last updated at 2023/01/09 03:33:00 UT

Marc W. Buie, Southwest Research Institute

RECON