RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1000:02880043 with event index number of 2279431

Geocentric closest approach at 2027/01/08 04:43:12 UTC

J2000 position of star is 07:33:48.3 +11:09:52
Equinox of date position of star is 07:35:09.5 +11:06:36
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 21.6 AU from the Sun and 20.6 AU from the Earth.
Apparent velocity is 23.2 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 617 seconds.
The 1-sigma cross-track error in the shadow position is 5748 km.
The sky-plane scale is 14945.6 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.0 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2027/01/08 04:43UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:58.2 +27:57:31  1.1 17.08 175
Alhena         06:39:16.3 +16:22:26  1.9 14.58 165
PPM 124170     07:35:34.1 +10:30:27  6.1  0.60 166
PPM 124160     07:34:57.0 +10:57:05  8.2  0.18 167
463368         07:35:17.9 +11:06:15 16.2       167
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 1.5 sigma about the mid-time.
The median site spacing is 31.8 km RECON observability=1.0 and success probability=8.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:45:18 -49.3 Dark Down 37.7 126.4 Up 04:30:18 - 05:00:18 1423
Kamloops 04:45:50 -41.8 Dark Down 30.5 111.4 Up 04:30:50 - 05:00:50 1394
Kelowna 04:45:51 -42.5 Dark Down 31.4 111.8 Up 04:30:51 - 05:00:51 1318
Peachland 04:45:52 -42.4 Dark Down 31.2 111.4 Up 04:30:52 - 05:00:52 1311
Summerland 04:45:52 -42.5 Dark Down 31.3 111.4 Up 04:30:52 - 05:00:52 1298
Penticton 04:45:52 -42.6 Dark Down 31.4 111.5 Up 04:30:52 - 05:00:52 1291
Oliver 04:45:53 -42.7 Dark Down 31.6 111.3 Up 04:30:53 - 05:00:53 1261
Anarchist Mountain Observatory 04:45:53 -42.9 Dark Down 31.7 111.4 Up 04:30:53 - 05:00:53 1245
Victoria 04:46:02 -40.4 Dark Down 29.4 107.6 Low 04:31:02 - 05:01:02 1237
Okanogan 04:45:55 -42.9 Dark Down 31.8 110.8 Up 04:30:55 - 05:00:55 1191
Brewster 04:45:56 -42.8 Dark Down 31.8 110.5 Up 04:30:56 - 05:00:56 1169
Manson/Chelan 04:45:57 -42.7 Dark Down 31.7 110.0 Up 04:30:57 - 05:00:57 1153
Wenatchee 04:45:59 -42.7 Dark Down 31.7 109.6 Up 04:30:59 - 05:00:59 1113
Ellensburg 04:46:00 -42.6 Dark Down 31.7 109.2 Up 04:31:00 - 05:01:00 1079
Yakima 04:46:01 -42.7 Dark Down 31.8 108.9 Up 04:31:01 - 05:01:01 1043
Toppenish/White Swan 04:46:02 -42.9 Dark Down 32.0 109.0 Up 04:31:02 - 05:01:02 1022
PNWRO 04:46:00 -44.0 Dark Down 33.1 110.0 Up 04:31:00 - 05:01:00 976
The Dalles 04:46:05 -42.5 Dark Down 31.7 107.8 Up 04:31:05 - 05:01:05 959
Maupin 04:46:06 -42.7 Dark Down 31.9 107.7 Up 04:31:06 - 05:01:06 921
Sisters 04:46:09 -42.5 Dark Down 31.9 106.8 Up 04:31:09 - 05:01:09 846
Bend 04:46:09 -42.7 Dark Down 32.1 106.8 Up 04:31:09 - 05:01:09 822
Oregon Observatory 04:46:10 -42.7 Dark Down 32.1 106.6 Up 04:31:10 - 05:01:10 807
Chiloquin 04:46:14 -42.6 Dark Down 32.2 105.5 Up 04:31:14 - 05:01:14 689
Klamath Falls 04:46:15 -42.7 Dark Down 32.3 105.4 Up 04:31:15 - 05:01:15 657
Cedarville 04:46:13 -44.0 Dark Down 33.7 106.2 Up 04:31:13 - 05:01:13 576
Fall River/Burney 04:46:17 -43.1 Dark Down 32.9 104.9 Up 04:31:17 - 05:01:17 542
Greenville 04:46:18 -43.6 Dark Down 33.5 104.7 Up 04:31:18 - 05:01:18 452
Gimple 04:46:17 -43.7 Dark Down 33.5 104.8 Up 04:31:17 - 05:01:17 451
Quincy 04:46:18 -43.6 Dark Down 33.5 104.6 Up 04:31:18 - 05:01:18 432
Portola 04:46:17 -44.0 Dark Down 33.9 104.9 Up 04:31:17 - 05:01:17 416
Reno 04:46:16 -44.5 Dark Down 34.5 105.2 Up 04:31:16 - 05:01:16 384
Carson City 04:46:17 -44.6 Dark Down 34.6 105.0 Up 04:31:17 - 05:01:17 349
Dunrhomin 04:45:38 -55.2 Dark Down 44.5 118.5 Up 04:30:38 - 05:00:38 343
Nikitin 04:45:39 -55.2 Dark Down 44.6 118.3 Up 04:30:39 - 05:00:39 326
Gardnerville 04:46:18 -44.7 Dark Down 34.7 104.9 Up 04:31:18 - 05:01:18 325
Yerington 04:46:16 -45.1 Dark Down 35.1 105.3 Up 04:31:16 - 05:01:16 324
CU-SBO 04:45:39 -55.2 Dark Down 44.6 118.2 Up 04:30:39 - 05:00:39 320
Hawthorne 04:46:16 -45.6 Dark Down 35.6 105.4 Up 04:31:16 - 05:01:16 274
Lee Vining 04:46:18 -45.3 Dark Down 35.4 104.7 Up 04:31:18 - 05:01:18 224
Bishop 04:46:18 -45.9 Dark Down 36.1 104.8 Up 04:31:18 - 05:01:18 158
Beatty 04:46:15 -47.2 Dark Down 37.5 105.7 Up 04:31:15 - 05:01:15 97
Patrick 04:46:10 -49.7 Dark Down 40.1 106.8 Up 04:31:10 - 05:01:10 -76
Laughlin/Bullhead City 04:46:13 -49.2 Dark Down 39.7 106.0 Up 04:31:13 - 05:01:13 -95
Lake Havasu City 04:46:13 -49.4 Dark Down 40.0 105.7 Up 04:31:13 - 05:01:13 -165
Wildwood 04:46:24 -46.0 Dark Down 36.7 102.3 Up 04:31:24 - 05:01:24 -166
Idyllwild 04:46:20 -47.5 Dark Down 38.3 103.4 Up 04:31:20 - 05:01:20 -220
George/Scottsdale 04:46:08 -51.5 Dark Down 42.2 106.9 Up 04:31:08 - 05:01:08 -264
Calipatria 04:46:18 -48.6 Dark Down 39.4 103.7 Up 04:31:18 - 05:01:18 -294
Yuma 04:46:17 -49.3 Dark Down 40.3 104.0 Up 04:31:17 - 05:01:17 -346

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 463368, (2027/01/08 04:43UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 17.08 175
Alhena         06:37:42.8 +16:23:57  1.9 14.58 165
PPM 124170     07:34:04.9 +10:34:04  6.1  0.60 166
PPM 124160     07:33:27.4 +11:00:42  8.2  0.18 167
463368         07:33:48.3 +11:09:52 16.2       167
Positions are for J2000

Event circumstances last updated at 2024/06/20 21:26:13 UT

Marc W. Buie, Southwest Research Institute

RECON