RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star TYC21307-01530-1 with event index number of 234228

Geocentric closest approach at 2019/12/18 07:41:16 UTC

J2000 position of star is 05:51:51.9 +19:09:19
Equinox of date position of star is 05:52:55.7 +19:09:31
Stellar brightness V=10.7, use SENSEUP=4
Star is 77 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 23.8 AU from the Sun and 22.8 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is 969 km.
The sky-plane scale is 16537.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.7 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2019/12/18 07:41UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.2 +07:24:33  0.4 11.78  78
Alnath         05:27:33.3 +28:37:21  1.6 11.11  81
PPM 121513     05:53:34.4 +19:52:17  6.4  0.72  77
PPM 121512     05:53:33.5 +19:09:12  8.5  0.12  77
463368         05:53:02.6 +19:09:32 10.7        76
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 24.0 km RECON observability=1.0 and success probability=22.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:41:23 -64.3 Dark Up 59.9 169.7 Up 07:33:21 - 07:49:25 2635
Tonasket 07:41:23 -64.6 Dark Up 60.1 169.7 Up 07:33:21 - 07:49:25 2613
Okanogan 07:41:23 -64.9 Dark Up 60.4 169.3 Up 07:33:21 - 07:49:25 2582
Brewster 07:41:24 -65.1 Dark Up 60.7 168.8 Up 07:33:22 - 07:49:26 2558
Manson/Chelan 07:41:26 -65.3 Dark Up 60.8 168.1 Up 07:33:24 - 07:49:28 2541
Entiat 07:41:26 -65.5 Dark Up 61.0 167.8 Up 07:33:24 - 07:49:28 2520
Wenatchee 07:41:27 -65.8 Dark Up 61.3 167.6 Up 07:33:25 - 07:49:29 2497
Ellensburg 07:41:27 -66.1 Dark Up 61.7 167.0 Up 07:33:25 - 07:49:29 2458
Yakima 07:41:27 -66.5 Dark Up 62.0 166.8 Up 07:33:25 - 07:49:29 2419
Toppenish/White Swan 07:41:27 -66.8 Dark Up 62.3 167.0 Up 07:33:25 - 07:49:29 2396
Pasco 07:41:23 -67.0 Dark Up 62.6 169.5 Up 07:33:21 - 07:49:25 2373
PNWRO 07:41:23 -67.3 Dark Up 62.9 169.9 Up 07:33:21 - 07:49:25 2347
Goldendale 07:41:29 -67.3 Dark Up 62.8 165.9 Up 07:33:27 - 07:49:31 2346
George/Umatilla 07:41:24 -67.3 Dark Up 62.9 168.9 Up 07:33:22 - 07:49:26 2342
The Dalles 07:41:30 -67.4 Dark Up 62.9 165.1 Up 07:33:28 - 07:49:32 2328
Maupin 07:41:30 -67.9 Dark Up 63.3 165.1 Up 07:33:28 - 07:49:32 2286
Madras/Culver 07:41:31 -68.4 Dark Up 63.9 164.7 Up 07:33:29 - 07:49:33 2232
Sisters 07:41:33 -68.6 Dark Up 64.1 163.6 Up 07:33:31 - 07:49:35 2203
Redmond 07:41:31 -68.7 Dark Up 64.2 164.4 Up 07:33:29 - 07:49:33 2197
Bend 07:41:32 -68.9 Dark Up 64.4 164.0 Up 07:33:30 - 07:49:34 2177
Oregon Observatory 07:41:33 -69.1 Dark Up 64.5 163.6 Up 07:33:31 - 07:49:35 2161
La Pine/Gilchrist 07:41:33 -69.3 Dark Up 64.7 163.4 Up 07:33:31 - 07:49:35 2141
North Lake 07:41:31 -69.8 Dark Up 65.2 164.4 Up 07:33:29 - 07:49:33 2092
Chiloquin 07:41:35 -70.3 Dark Up 65.7 161.9 Up 07:33:33 - 07:49:37 2034
Paisley 07:41:30 -70.4 Dark Up 65.8 164.9 Up 07:33:28 - 07:49:32 2033
Klamath Falls 07:41:35 -70.6 Dark Up 66.0 161.8 Up 07:33:33 - 07:49:37 1998
Lakeview 07:41:30 -70.9 Dark Up 66.4 165.0 Up 07:33:28 - 07:49:32 1980
Tulelake 07:41:34 -70.9 Dark Up 66.3 162.3 Up 07:33:32 - 07:49:36 1968
Cedarville 07:41:30 -71.6 Dark Up 67.0 165.0 Up 07:33:28 - 07:49:32 1912
Fall River/Burney 07:41:34 -71.8 Dark Up 67.2 161.8 Up 07:33:32 - 07:49:36 1875
Susanville 07:41:32 -72.6 Dark Up 68.0 163.2 Up 07:33:30 - 07:49:34 1803
Greenville 07:41:34 -72.8 Dark Up 68.2 162.2 Up 07:33:32 - 07:49:36 1778
Gimple 07:41:33 -72.8 Dark Up 68.2 162.4 Up 07:33:31 - 07:49:35 1777
Quincy 07:41:34 -73.0 Dark Up 68.4 162.1 Up 07:33:32 - 07:49:36 1757
Portola 07:41:32 -73.2 Dark Up 68.6 163.2 Up 07:33:30 - 07:49:34 1739
Reno 07:41:30 -73.6 Dark Up 69.0 164.6 Up 07:33:28 - 07:49:32 1705
Niwot 07:40:39 -70.9 Dark Up 67.8 202.1 Up 07:32:37 - 07:48:41 1670
Carson City 07:41:30 -73.9 Dark Up 69.4 164.4 Up 07:33:28 - 07:49:32 1668
Gardnerville 07:41:30 -74.2 Dark Up 69.6 164.4 Up 07:33:28 - 07:49:32 1642
Yerington 07:41:28 -74.2 Dark Up 69.7 165.9 Up 07:33:26 - 07:49:30 1642
Hawthorne 07:41:27 -74.7 Dark Up 70.2 167.1 Up 07:33:25 - 07:49:29 1588
Lee Vining 07:41:29 -75.2 Dark Up 70.7 165.4 Up 07:33:27 - 07:49:31 1534
Tonopah 07:41:22 -75.3 Dark Up 70.9 170.7 Up 07:33:20 - 07:49:24 1527
Bishop 07:41:26 -75.9 Dark Up 71.4 167.0 Up 07:33:24 - 07:49:28 1465
Beatty 07:41:21 -76.5 Dark Up 72.1 171.5 Up 07:33:19 - 07:49:23 1402
Lone Pine 07:41:26 -76.7 Dark Up 72.2 167.5 Up 07:33:24 - 07:49:28 1382
Indian Springs 07:41:17 -76.8 Dark Up 72.5 174.7 Up 07:33:15 - 07:49:19 1358
Henderson 07:41:15 -77.3 Dark Up 73.1 176.8 Up 07:33:13 - 07:49:17 1296
CPSLO 07:41:36 -77.5 Dark Up 72.8 158.4 Up 07:33:34 - 07:49:38 1272
Searchlight/Boulder City 07:41:15 -77.9 Dark Up 73.7 176.9 Up 07:33:13 - 07:49:17 1235
Patrick 07:41:11 -77.8 Dark Up 73.7 180.3 Up 07:33:09 - 07:49:13 1221
Laughlin/Bullhead City 07:41:13 -78.1 Dark Up 74.0 178.0 Up 07:33:11 - 07:49:15 1200
Kingman/Dolan Springs 07:41:12 -78.0 Dark Up 74.0 179.7 Up 07:33:10 - 07:49:14 1199
DCO 07:41:08 -78.0 Dark Up 74.0 182.8 Up 07:33:06 - 07:49:10 1183
Mohave Valley 07:41:13 -78.4 Dark Up 74.3 177.9 Up 07:33:11 - 07:49:15 1171
Lake Havasu City 07:41:13 -78.8 Dark Up 74.7 178.8 Up 07:33:11 - 07:49:15 1127
Wildwood 07:41:29 -79.1 Dark Up 74.5 163.7 Up 07:33:27 - 07:49:31 1122
Parker 07:41:13 -79.1 Dark Up 75.0 178.9 Up 07:33:11 - 07:49:15 1089
Idyllwild 07:41:22 -79.6 Dark Up 75.2 170.0 Up 07:33:20 - 07:49:24 1066
Blythe 07:41:14 -79.7 Dark Up 75.5 177.7 Up 07:33:12 - 07:49:16 1035
Calipatria 07:41:18 -80.2 Dark Up 76.0 174.0 Up 07:33:16 - 07:49:20 990
Yuma 07:41:15 -80.6 Dark Up 76.5 177.4 Up 07:33:13 - 07:49:17 936

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, (2019/12/18 07:41UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.78  78
Alnath         05:26:17.5 +28:36:24  1.6 11.11  81
PPM 121513     05:52:23.4 +19:52:04  6.4  0.72  77
PPM 121512     05:52:22.8 +19:08:59  8.5  0.12  77
463368         05:51:51.9 +19:09:19 10.7        77
Positions are for J2000

Event circumstances last updated at 2018/01/01 18:29:00 UT

Marc W. Buie, Southwest Research Institute

RECON