RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA1380:04255768 with event index number of 2655158

Geocentric closest approach at 2023/11/26 07:40:30 UTC

J2000 position of star is 09:24:15.7 +48:54:52
Equinox of date position of star is 09:25:47.5 +48:48:56
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 78 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=18.2

[RECON map]
TNO is 8.8 AU from the Sun and 8.4 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 14.1 arcsec/hr.
The 1-sigma error in the time of the event is 28 seconds.
The 1-sigma cross-track error in the shadow position is 779 km.
The sky-plane scale is 6092.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=128.2 km assuming a 5% albedo -- 5.4 sec chord
Diameter=52.4 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2023/11/26 07:40UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.6 +27:57:59  1.1 28.23  63
Merak          11:03:16.1 +56:15:13  2.4 16.46  88
PPM 051151     09:19:06.7 +46:42:58  5.7  2.38  77
PPM 051195     09:23:59.0 +48:18:24  7.4  0.59  77
PPM 051231     09:27:34.0 +48:52:21  9.6  0.29  78
PPM 051208     09:24:58.5 +48:35:58 10.2  0.26  77
468861         09:25:52.0 +48:48:38 14.7        78
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 27.4 km RECON observability=1.0 and success probability=59.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:43:54 -60.2 Dark Up 40.7 58.7 Up 07:41:04 - 07:46:44 1380
Victoria 07:44:02 -62.2 Dark Up 37.9 55.8 Up 07:41:12 - 07:46:52 1304
Peachland 07:43:54 -61.2 Dark Up 40.5 58.4 Up 07:41:04 - 07:46:44 1270
Kelowna 07:43:54 -61.0 Dark Up 40.8 58.6 Up 07:41:04 - 07:46:44 1269
Summerland 07:43:55 -61.3 Dark Up 40.5 58.3 Up 07:41:05 - 07:46:45 1253
Penticton 07:43:54 -61.4 Dark Up 40.5 58.3 Up 07:41:04 - 07:46:44 1242
Oliver 07:43:55 -61.7 Dark Up 40.4 58.0 Up 07:41:05 - 07:46:45 1209
Anarchist Mountain Observatory 07:43:55 -61.9 Dark Up 40.4 58.0 Up 07:41:05 - 07:46:45 1185
Tonasket 07:43:55 -62.2 Dark Up 40.2 57.8 Up 07:41:05 - 07:46:45 1159
Okanogan 07:43:56 -62.5 Dark Up 39.9 57.4 Up 07:41:06 - 07:46:46 1133
Brewster 07:43:57 -62.8 Dark Up 39.6 57.2 Up 07:41:07 - 07:46:47 1116
Manson/Chelan 07:43:58 -63.0 Dark Up 39.3 56.9 Up 07:41:08 - 07:46:48 1111
Wenatchee 07:43:59 -63.5 Dark Up 39.0 56.5 Up 07:41:09 - 07:46:49 1073
Sleaford 07:43:26 -57.2 Dark Up 49.3 67.1 Up 07:40:36 - 07:46:16 1059
Ellensburg 07:44:00 -63.9 Dark Up 38.6 56.1 Up 07:41:10 - 07:46:50 1044
Yakima 07:44:01 -64.3 Dark Up 38.4 55.8 Up 07:41:11 - 07:46:51 1007
Toppenish/White Swan 07:44:01 -64.5 Dark Up 38.4 55.8 Up 07:41:11 - 07:46:51 979
Goldendale 07:44:02 -65.1 Dark Up 37.8 55.2 Up 07:41:12 - 07:46:52 946
The Dalles 07:44:03 -65.3 Dark Up 37.5 54.9 Up 07:41:13 - 07:46:53 941
Maupin 07:44:04 -65.7 Dark Up 37.3 54.7 Up 07:41:14 - 07:46:54 897
PNWRO 07:43:59 -64.9 Dark Up 39.0 56.1 Up 07:41:09 - 07:46:49 883
Sisters 07:44:06 -66.5 Dark Up 36.5 54.0 Up 07:41:16 - 07:46:56 837
Bend 07:44:05 -66.8 Dark Up 36.5 53.9 Up 07:41:15 - 07:46:55 804
Oregon Observatory 07:44:06 -66.9 Dark Up 36.3 53.8 Up 07:41:16 - 07:46:56 793
North Lake 07:44:06 -67.6 Dark Up 36.3 53.6 Up 07:41:16 - 07:46:56 710
Chiloquin 07:44:08 -68.2 Dark Up 35.3 52.9 Up 07:41:18 - 07:46:58 691
Klamath Falls 07:44:09 -68.6 Dark Up 35.2 52.7 Up 07:41:19 - 07:46:59 655
Lakeview 07:44:06 -68.7 Dark Up 36.0 53.2 Up 07:41:16 - 07:46:56 587
Fall River/Burney 07:44:09 -69.8 Dark Up 34.7 52.2 Up 07:41:19 - 07:46:59 529
Cedarville 07:44:07 -69.4 Dark Up 35.7 52.9 Up 07:41:17 - 07:46:57 518
Susanville 07:44:09 -70.5 Dark Up 34.7 52.1 Up 07:41:19 - 07:46:59 437
Greenville 07:44:09 -70.7 Dark Up 34.4 51.8 Up 07:41:19 - 07:46:59 425
Gimple 07:44:09 -70.7 Dark Up 34.4 51.9 Up 07:41:19 - 07:46:59 421
Quincy 07:44:10 -70.9 Dark Up 34.3 51.7 Up 07:41:20 - 07:47:00 406
Portola 07:44:09 -71.1 Dark Up 34.5 51.8 Up 07:41:19 - 07:46:59 373
Reno 07:44:08 -71.4 Dark Up 34.7 51.9 Up 07:41:18 - 07:46:58 318
Carson City 07:44:08 -71.7 Dark Up 34.5 51.7 Up 07:41:18 - 07:46:58 284
Gardnerville 07:44:08 -72.0 Dark Up 34.4 51.6 Up 07:41:18 - 07:46:58 259
Yerington 07:44:07 -71.9 Dark Up 34.7 51.8 Up 07:41:17 - 07:46:57 236
Hawthorne 07:44:07 -72.4 Dark Up 34.8 51.7 Up 07:41:17 - 07:46:57 169
Lee Vining 07:44:08 -72.9 Dark Up 34.1 51.2 Up 07:41:18 - 07:46:58 139
Tonopah 07:44:04 -72.8 Dark Up 35.4 51.8 Up 07:41:14 - 07:46:54 62
Bishop 07:44:07 -73.5 Dark Up 34.2 51.1 Up 07:41:17 - 07:46:57 50
Beatty 07:44:04 -73.9 Dark Up 34.9 51.3 Up 07:41:14 - 07:46:54 -67
Indian Springs 07:44:02 -74.0 Dark Up 35.4 51.4 Up 07:41:12 - 07:46:52 -145
Dunrhomin 07:43:35 -67.3 Dark Up 44.1 56.3 Up 07:40:45 - 07:46:25 -176
CU-SBO 07:43:35 -67.5 Dark Up 43.9 56.1 Up 07:40:45 - 07:46:25 -198
Henderson 07:44:01 -74.4 Dark Up 35.5 51.2 Up 07:41:11 - 07:46:51 -225
Wildwood 07:44:10 -76.8 Dark Up 32.0 49.4 Up 07:41:20 - 07:47:00 -241
Laughlin/Bullhead City 07:44:00 -75.2 Dark Up 35.2 50.8 Up 07:41:10 - 07:46:50 -325
Patrick 07:43:58 -74.8 Dark Up 35.8 51.1 Up 07:41:08 - 07:46:48 -333
Kingman/Dolan Springs 07:43:59 -75.0 Dark Up 35.5 51.0 Up 07:41:09 - 07:46:49 -345
Mohave Valley 07:44:00 -75.4 Dark Up 35.0 50.7 Up 07:41:10 - 07:46:50 -351
Idyllwild 07:44:06 -77.0 Dark Up 32.9 49.7 Up 07:41:16 - 07:46:56 -363
Lake Havasu City 07:44:00 -75.7 Dark Up 34.9 50.5 Up 07:41:10 - 07:46:50 -399
Parker 07:44:00 -76.1 Dark Up 34.7 50.4 Up 07:41:10 - 07:46:50 -434
Calipatria 07:44:03 -77.3 Dark Up 33.3 49.6 Up 07:41:13 - 07:46:53 -473
Yuma 07:44:01 -77.5 Dark Up 33.6 49.5 Up 07:41:11 - 07:46:51 -554
George/Scottsdale 07:43:54 -75.6 Dark Up 36.0 50.6 Up 07:41:04 - 07:46:44 -577

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 468861, (2023/11/26 07:40UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 28.23  63
Merak          11:01:50.7 +56:22:57  2.4 16.46  88
PPM 051151     09:17:31.2 +46:49:03  5.7  2.38  77
PPM 051195     09:22:22.8 +48:24:35  7.4  0.59  77
PPM 051231     09:25:57.8 +48:58:37  9.6  0.29  78
PPM 051208     09:23:22.2 +48:42:10 10.2  0.26  77
468861         09:24:15.7 +48:54:52 14.7        77
Positions are for J2000

Event circumstances last updated at 2022/10/07 04:18:51 UT

Marc W. Buie, Southwest Research Institute

RECON