RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA1380:04255768 with event index number of 1340447

Geocentric closest approach at 2023/11/26 07:40:27 UTC

J2000 position of star is 09:24:15.7 +48:54:52
Equinox of date position of star is 09:25:41.5 +48:49:19
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 70 seconds.
The 1-sigma cross-track error in the shadow position is 2013 km.
The sky-plane scale is 6092.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=127.6 km assuming a 5% albedo -- 5.3 sec chord
Diameter=52.1 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 25.7 km RECON observability=1.0 and success probability=25.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 07:43:59 -62.2 Dark Up 37.9 55.8 Up 07:37:37 - 07:50:21 621
Clarence Fulton 07:43:50 -60.7 Dark Up 41.0 58.9 Up 07:37:28 - 07:50:12 616
Peachland 07:43:51 -61.2 Dark Up 40.5 58.3 Up 07:37:29 - 07:50:13 587
Kelowna 07:43:51 -61.0 Dark Up 40.8 58.6 Up 07:37:29 - 07:50:13 586
Summerland 07:43:52 -61.3 Dark Up 40.5 58.3 Up 07:37:30 - 07:50:14 569
Penticton 07:43:51 -61.4 Dark Up 40.5 58.3 Up 07:37:29 - 07:50:13 558
Oliver 07:43:52 -61.7 Dark Up 40.3 58.0 Up 07:37:30 - 07:50:14 525
Anarchist Mountain Observatory 07:43:52 -61.9 Dark Up 40.4 58.0 Up 07:37:30 - 07:50:14 501
Tonasket 07:43:53 -62.2 Dark Up 40.2 57.7 Up 07:37:31 - 07:50:15 475
Okanogan 07:43:53 -62.5 Dark Up 39.9 57.4 Up 07:37:31 - 07:50:15 450
Brewster 07:43:54 -62.8 Dark Up 39.6 57.2 Up 07:37:32 - 07:50:16 432
Manson/Chelan 07:43:55 -63.0 Dark Up 39.3 56.9 Up 07:37:33 - 07:50:17 427
Wenatchee 07:43:56 -63.5 Dark Up 39.0 56.5 Up 07:37:34 - 07:50:18 390
Ellensburg 07:43:57 -63.9 Dark Up 38.6 56.1 Up 07:37:35 - 07:50:19 360
Yakima 07:43:58 -64.3 Dark Up 38.4 55.8 Up 07:37:36 - 07:50:20 323
Toppenish/White Swan 07:43:58 -64.5 Dark Up 38.4 55.7 Up 07:37:36 - 07:50:20 296
Goldendale 07:43:59 -65.0 Dark Up 37.8 55.2 Up 07:37:37 - 07:50:21 262
The Dalles 07:44:00 -65.3 Dark Up 37.5 54.9 Up 07:37:38 - 07:50:22 257
Pasco 07:43:56 -64.7 Dark Up 39.0 56.2 Up 07:37:34 - 07:50:18 232
Maupin 07:44:01 -65.7 Dark Up 37.3 54.7 Up 07:37:39 - 07:50:23 213
PNWRO 07:43:56 -64.9 Dark Up 39.0 56.1 Up 07:37:34 - 07:50:18 199
Sisters 07:44:03 -66.5 Dark Up 36.5 54.0 Up 07:37:41 - 07:50:25 153
Redmond 07:44:02 -66.6 Dark Up 36.7 54.1 Up 07:37:40 - 07:50:24 133
Bend 07:44:03 -66.8 Dark Up 36.5 53.9 Up 07:37:41 - 07:50:25 120
Oregon Observatory 07:44:03 -66.9 Dark Up 36.3 53.8 Up 07:37:41 - 07:50:25 110
La Pine/Gilchrist 07:44:03 -67.1 Dark Up 36.2 53.6 Up 07:37:41 - 07:50:25 93
North Lake 07:44:03 -67.6 Dark Up 36.3 53.6 Up 07:37:41 - 07:50:25 26
Chiloquin 07:44:05 -68.2 Dark Up 35.3 52.9 Up 07:37:43 - 07:50:27 7
Klamath Falls 07:44:06 -68.6 Dark Up 35.1 52.7 Up 07:37:44 - 07:50:28 -28
Paisley 07:44:03 -68.2 Dark Up 36.1 53.4 Up 07:37:41 - 07:50:25 -41
Lakeview 07:44:03 -68.7 Dark Up 36.0 53.2 Up 07:37:41 - 07:50:25 -97
Fall River/Burney 07:44:06 -69.8 Dark Up 34.7 52.2 Up 07:37:44 - 07:50:28 -154
Cedarville 07:44:04 -69.4 Dark Up 35.7 52.9 Up 07:37:42 - 07:50:26 -166
Susanville 07:44:06 -70.5 Dark Up 34.7 52.1 Up 07:37:44 - 07:50:28 -247
Greenville 07:44:06 -70.7 Dark Up 34.4 51.8 Up 07:37:44 - 07:50:28 -258
Gimple 07:44:06 -70.7 Dark Up 34.4 51.9 Up 07:37:44 - 07:50:28 -263
Quincy 07:44:07 -70.9 Dark Up 34.2 51.7 Up 07:37:45 - 07:50:29 -277
Portola 07:44:06 -71.1 Dark Up 34.5 51.8 Up 07:37:44 - 07:50:28 -311
Reno 07:44:05 -71.4 Dark Up 34.7 51.9 Up 07:37:43 - 07:50:27 -366
Carson City 07:44:05 -71.7 Dark Up 34.5 51.7 Up 07:37:43 - 07:50:27 -400
Gardnerville 07:44:05 -72.0 Dark Up 34.3 51.6 Up 07:37:43 - 07:50:27 -425
Yerington 07:44:04 -71.9 Dark Up 34.7 51.8 Up 07:37:42 - 07:50:26 -447
Hawthorne 07:44:04 -72.4 Dark Up 34.8 51.7 Up 07:37:42 - 07:50:26 -515
Lee Vining 07:44:05 -72.9 Dark Up 34.1 51.2 Up 07:37:43 - 07:50:27 -545
Tonopah 07:44:01 -72.8 Dark Up 35.3 51.8 Up 07:37:39 - 07:50:23 -622
Bishop 07:44:04 -73.5 Dark Up 34.2 51.1 Up 07:37:42 - 07:50:26 -633
CPSLO 07:44:10 -75.5 Dark Up 31.5 49.5 Up 07:37:48 - 07:50:32 -714
Beatty 07:44:01 -73.9 Dark Up 34.9 51.3 Up 07:37:39 - 07:50:23 -750
Indian Springs 07:43:59 -74.0 Dark Up 35.4 51.4 Up 07:37:37 - 07:50:21 -829
Dunrhomin 07:43:32 -67.3 Dark Up 44.1 56.3 Up 07:37:10 - 07:49:54 -860
Henderson 07:43:57 -74.4 Dark Up 35.5 51.2 Up 07:37:35 - 07:50:19 -909
Wildwood 07:44:07 -76.8 Dark Up 32.0 49.4 Up 07:37:45 - 07:50:29 -925
Laughlin/Bullhead City 07:43:57 -75.2 Dark Up 35.2 50.8 Up 07:37:35 - 07:50:19 -1009
Patrick 07:43:55 -74.8 Dark Up 35.8 51.1 Up 07:37:33 - 07:50:17 -1016
Kingman/Dolan Springs 07:43:56 -75.0 Dark Up 35.5 51.0 Up 07:37:34 - 07:50:18 -1029
Mohave Valley 07:43:57 -75.4 Dark Up 35.0 50.7 Up 07:37:35 - 07:50:19 -1035
Idyllwild 07:44:03 -77.0 Dark Up 32.9 49.7 Up 07:37:41 - 07:50:25 -1047
Lake Havasu City 07:43:57 -75.7 Dark Up 34.9 50.5 Up 07:37:35 - 07:50:19 -1083
Parker 07:43:57 -76.1 Dark Up 34.7 50.4 Up 07:37:35 - 07:50:19 -1117
Blythe 07:43:58 -76.6 Dark Up 34.2 50.0 Up 07:37:36 - 07:50:20 -1153
Calipatria 07:44:00 -77.3 Dark Up 33.3 49.6 Up 07:37:38 - 07:50:22 -1157
Yuma 07:43:58 -77.5 Dark Up 33.6 49.5 Up 07:37:36 - 07:50:20 -1237
George/Scottsdale 07:43:51 -75.6 Dark Up 36.0 50.6 Up 07:37:29 - 07:50:13 -1261

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 2021/04/14 23:49:33 UT

Marc W. Buie, Southwest Research Institute

RECON