RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star UC4-550-017885 with event index number of 167456

Geocentric closest approach at 2018/12/01 13:16:11 UTC

J2000 position of star is 05:40:22.4 +19:59:04
Equinox of date position of star is 05:41:23.1 +19:59:33
Stellar brightness R=16.5, use SENSEUP=128
Star is 94 degrees from the moon. Moon is 33% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 24.2 AU from the Sun and 23.2 AU from the Earth.
The TNO is moving 23.0 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is 893 km.
The sky-plane scale is 16834.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.5 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2018/12/01 13:16UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:11.8 +07:24:33  0.4 13.08  92
Alnath         05:27:29.4 +28:37:18  1.6  9.20  96
123Zet Tau     05:38:46.6 +21:09:09  3.0  1.32  94
PPM 121239     05:41:16.8 +19:41:21  7.8  0.31  94
PPM 094669     05:42:19.1 +20:04:15  9.2  0.21  94
463368         05:41:29.7 +19:59:36 16.5        94
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 24.6 km RECON observability=0.9 and success probability=17.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 13:13:06 -21.7 Dark Up 31.8 264.3 Up 13:06:51 - 13:19:21 -1077
Tonasket 13:13:06 -21.7 Dark Up 31.9 264.4 Up 13:06:51 - 13:19:21 -1098
Okanogan 13:13:05 -21.7 Dark Up 32.0 264.5 Up 13:06:50 - 13:19:20 -1132
Brewster 13:13:04 -21.8 Dark Up 32.1 264.5 Up 13:06:49 - 13:19:19 -1160
Manson/Chelan 13:13:04 -22.0 Dark Up 32.4 264.3 Up 13:06:49 - 13:19:19 -1186
Entiat 13:13:04 -22.0 Dark Up 32.5 264.4 Up 13:06:49 - 13:19:19 -1207
Wenatchee 13:13:03 -22.1 Dark Up 32.6 264.5 Up 13:06:48 - 13:19:18 -1233
Ellensburg 13:13:02 -22.1 Dark Up 32.8 264.6 Up 13:06:47 - 13:19:17 -1275
Yakima 13:13:02 -22.1 Dark Up 32.8 264.8 Up 13:06:47 - 13:19:17 -1313
Pasco 13:12:59 -21.1 Dark Up 31.9 266.1 Up 13:06:44 - 13:19:14 -1317
Toppenish/White Swan 13:13:01 -21.9 Dark Up 32.7 265.1 Up 13:06:46 - 13:19:16 -1330
PNWRO 13:12:58 -20.9 Dark Up 31.7 266.5 Up 13:06:43 - 13:19:13 -1335
George/Umatilla 13:12:58 -21.2 Dark Up 32.0 266.2 Up 13:06:43 - 13:19:13 -1352
Goldendale 13:13:00 -22.2 Dark Up 33.1 265.1 Up 13:06:45 - 13:19:15 -1389
The Dalles 13:13:00 -22.4 Dark Up 33.3 265.0 Up 13:06:45 - 13:19:15 -1417
Maupin 13:12:59 -22.2 Dark Up 33.3 265.4 Up 13:06:44 - 13:19:14 -1454
Madras/Culver 13:12:58 -22.2 Dark Up 33.4 265.7 Up 13:06:43 - 13:19:13 -1507
Redmond 13:12:57 -22.2 Dark Up 33.4 265.9 Up 13:06:42 - 13:19:12 -1542
Sisters 13:12:58 -22.4 Dark Up 33.7 265.6 Up 13:06:43 - 13:19:13 -1547
Bend 13:12:57 -22.2 Dark Up 33.6 265.9 Up 13:06:42 - 13:19:12 -1565
Niwot 13:12:25 -9.7 CT Up 21.5 278.5 Low 13:06:10 - 13:18:40 -1568
Oregon Observatory 13:12:57 -22.3 Dark Up 33.7 265.9 Up 13:06:42 - 13:19:12 -1584
La Pine/Gilchrist 13:12:56 -22.3 Dark Up 33.7 266.0 Up 13:06:41 - 13:19:11 -1604
North Lake 13:12:55 -21.8 Dark Up 33.3 266.7 Up 13:06:40 - 13:19:10 -1634
Paisley 13:12:52 -21.5 Dark Up 33.1 267.3 Up 13:06:37 - 13:19:07 -1680
Chiloquin 13:12:55 -22.4 Dark Up 34.1 266.5 Up 13:06:40 - 13:19:10 -1718
Lakeview 13:12:51 -21.2 Dark Up 33.0 267.8 Up 13:06:36 - 13:19:06 -1725
Klamath Falls 13:12:54 -22.3 Dark Up 34.0 266.8 Up 13:06:39 - 13:19:09 -1750
Tulelake 13:12:52 -22.0 Dark Up 33.8 267.2 Up 13:06:37 - 13:19:07 -1770
Cedarville 13:12:49 -21.0 Dark Up 32.9 268.3 Up 13:06:34 - 13:19:04 -1785
Fall River/Burney 13:12:50 -21.8 Dark Up 33.8 267.8 Up 13:06:35 - 13:19:05 -1857
Susanville 13:12:48 -21.1 Dark Up 33.3 268.7 Up 13:06:33 - 13:19:03 -1904
Gimple 13:12:47 -21.2 Dark Up 33.4 268.8 Up 13:06:32 - 13:19:02 -1936
Greenville 13:12:47 -21.3 Dark Up 33.5 268.7 Up 13:06:32 - 13:19:02 -1937
Quincy 13:12:47 -21.2 Dark Up 33.5 268.9 Up 13:06:32 - 13:19:02 -1957
Portola 13:12:45 -20.9 Dark Up 33.2 269.3 Up 13:06:30 - 13:19:00 -1959
Reno 13:12:44 -20.3 Dark Up 32.7 269.8 Up 13:06:29 - 13:18:59 -1972
Carson City 13:12:43 -20.2 Dark Up 32.6 270.1 Up 13:06:28 - 13:18:58 -2007
Yerington 13:12:41 -19.7 Dark Up 32.2 270.6 Up 13:06:26 - 13:18:56 -2012
Gardnerville 13:12:42 -20.2 Dark Up 32.6 270.3 Up 13:06:27 - 13:18:57 -2030
Hawthorne 13:12:39 -19.2 Dark Up 31.7 271.2 Up 13:06:24 - 13:18:54 -2047
Tonopah 13:12:36 -18.0 Dark Up 30.6 272.3 Up 13:06:21 - 13:18:51 -2061
Lee Vining 13:12:39 -19.5 Dark Up 32.1 271.3 Up 13:06:24 - 13:18:54 -2113
Bishop 13:12:37 -18.8 Dark Up 31.5 272.1 Up 13:06:22 - 13:18:52 -2157
Beatty 13:12:33 -17.4 AT Up 30.2 273.3 Up 13:06:18 - 13:18:48 -2166
Indian Springs 13:12:30 -16.5 AT Up 29.3 274.1 Low 13:06:15 - 13:18:45 -2173
Henderson 13:12:28 -15.8 AT Up 28.7 274.8 Low 13:06:13 - 13:18:43 -2209
Lone Pine 13:12:34 -18.3 Dark Up 31.2 272.7 Up 13:06:19 - 13:18:49 -2225
Patrick 13:12:25 -14.8 AT Up 27.8 275.7 Low 13:06:10 - 13:18:40 -2244
DCO 13:12:23 -14.2 AT Up 27.2 276.2 Low 13:06:08 - 13:18:38 -2257
Searchlight/Boulder City 13:12:26 -15.6 AT Up 28.7 275.1 Low 13:06:11 - 13:18:41 -2265
Kingman/Dolan Springs 13:12:25 -14.9 AT Up 27.9 275.7 Low 13:06:10 - 13:18:40 -2271
Laughlin/Bullhead City 13:12:25 -15.3 AT Up 28.3 275.4 Low 13:06:10 - 13:18:40 -2286
Mohave Valley 13:12:25 -15.2 AT Up 28.3 275.6 Low 13:06:10 - 13:18:40 -2314
Lake Havasu City 13:12:24 -14.9 AT Up 28.1 275.9 Low 13:06:09 - 13:18:39 -2348
Parker 13:12:23 -14.8 AT Up 28.0 276.1 Low 13:06:08 - 13:18:38 -2382
CPSLO 13:12:37 -20.1 Dark Up 33.3 272.1 Up 13:06:22 - 13:18:52 -2415
Blythe 13:12:23 -14.9 AT Up 28.2 276.3 Low 13:06:08 - 13:18:38 -2443
Idyllwild 13:12:26 -16.6 AT Up 30.0 275.1 Low 13:06:11 - 13:18:41 -2483
Wildwood 13:12:30 -18.2 Dark Up 31.5 273.9 Up 13:06:15 - 13:18:45 -2491
Calipatria 13:12:23 -15.5 AT Up 28.9 276.1 Low 13:06:08 - 13:18:38 -2516
Yuma 13:12:21 -14.6 AT Up 28.1 276.7 Low 13:06:06 - 13:18:36 -2537

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, (2018/12/01 13:16UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.08  92
Alnath         05:26:17.5 +28:36:24  1.6  9.20  96
123Zet Tau     05:37:38.7 +21:08:33  3.0  1.32  94
PPM 121239     05:40:09.6 +19:40:49  7.8  0.31  94
PPM 094669     05:41:11.7 +20:03:45  9.2  0.21  94
463368         05:40:22.4 +19:59:04 16.5        94
Positions are for J2000

Event circumstances last updated at 2017/01/21 18:06:45 UT

Marc W. Buie, Southwest Research Institute

RECON