RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1080:01429369 with event index number of 234228

Geocentric closest approach at 2019/12/18 07:41:42 UTC

J2000 position of star is 05:51:51.9 +19:09:19
Equinox of date position of star is 05:52:58.5 +19:09:31
Stellar brightness G=9.5, use SENSEUP=2
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 154 seconds.
The 1-sigma cross-track error in the shadow position is 1235 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 07:42UT)
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  9.5        77
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 23.2 km RECON observability=1.0 and success probability=19.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:41:47 -63.4 Dark Up 59.0 170.3 Up 07:28:26 - 07:55:09 3077
Summerland 07:41:48 -63.4 Dark Up 59.0 169.7 Up 07:28:27 - 07:55:10 3076
Penticton 07:41:48 -63.7 Dark Up 59.3 169.9 Up 07:28:26 - 07:55:09 3044
Okanagan Falls 07:41:48 -63.9 Dark Up 59.5 169.8 Up 07:28:27 - 07:55:10 3026
Oliver 07:41:48 -64.1 Dark Up 59.7 169.8 Up 07:28:27 - 07:55:10 3011
Anarchist Mountain Observatory 07:41:48 -64.3 Dark Up 59.8 170.1 Up 07:28:26 - 07:55:09 2993
Oroville 07:41:48 -64.3 Dark Up 59.9 169.9 Up 07:28:27 - 07:55:10 2986
Tonasket 07:41:48 -64.6 Dark Up 60.1 169.9 Up 07:28:27 - 07:55:10 2964
Okanogan 07:41:48 -64.9 Dark Up 60.5 169.5 Up 07:28:27 - 07:55:10 2933
Brewster 07:41:49 -65.1 Dark Up 60.7 169.0 Up 07:28:28 - 07:55:11 2908
Manson/Chelan 07:41:51 -65.3 Dark Up 60.9 168.3 Up 07:28:29 - 07:55:12 2892
Entiat 07:41:51 -65.5 Dark Up 61.1 168.0 Up 07:28:30 - 07:55:13 2871
Wenatchee 07:41:52 -65.8 Dark Up 61.3 167.8 Up 07:28:30 - 07:55:13 2847
Ellensburg 07:41:53 -66.1 Dark Up 61.7 167.2 Up 07:28:31 - 07:55:14 2809
Yakima 07:41:53 -66.5 Dark Up 62.1 167.0 Up 07:28:31 - 07:55:14 2770
Toppenish/White Swan 07:41:52 -66.8 Dark Up 62.3 167.2 Up 07:28:31 - 07:55:14 2747
Pasco 07:41:48 -67.0 Dark Up 62.6 169.7 Up 07:28:27 - 07:55:10 2724
PNWRO 07:41:48 -67.3 Dark Up 62.9 170.1 Up 07:28:27 - 07:55:10 2698
Goldendale 07:41:54 -67.3 Dark Up 62.8 166.1 Up 07:28:33 - 07:55:16 2697
George/Umatilla 07:41:49 -67.3 Dark Up 62.9 169.1 Up 07:28:28 - 07:55:11 2693
The Dalles 07:41:56 -67.4 Dark Up 62.9 165.3 Up 07:28:34 - 07:55:17 2678
Maupin 07:41:56 -67.9 Dark Up 63.4 165.3 Up 07:28:34 - 07:55:17 2636
Madras/Culver 07:41:56 -68.4 Dark Up 63.9 164.9 Up 07:28:35 - 07:55:18 2583
Sisters 07:41:58 -68.7 Dark Up 64.1 163.8 Up 07:28:36 - 07:55:19 2554
Redmond 07:41:56 -68.7 Dark Up 64.2 164.6 Up 07:28:35 - 07:55:18 2548
Bend 07:41:57 -68.9 Dark Up 64.4 164.2 Up 07:28:36 - 07:55:19 2528
Oregon Observatory 07:41:58 -69.1 Dark Up 64.5 163.8 Up 07:28:36 - 07:55:19 2512
La Pine/Gilchrist 07:41:58 -69.3 Dark Up 64.7 163.6 Up 07:28:37 - 07:55:20 2492
North Lake 07:41:56 -69.8 Dark Up 65.3 164.6 Up 07:28:35 - 07:55:18 2443
Chiloquin 07:42:00 -70.3 Dark Up 65.7 162.1 Up 07:28:38 - 07:55:21 2384
Paisley 07:41:56 -70.4 Dark Up 65.9 165.1 Up 07:28:34 - 07:55:17 2384
Klamath Falls 07:42:00 -70.6 Dark Up 66.0 162.1 Up 07:28:38 - 07:55:21 2349
Lakeview 07:41:55 -70.9 Dark Up 66.4 165.3 Up 07:28:34 - 07:55:17 2331
Tulelake 07:41:59 -70.9 Dark Up 66.4 162.5 Up 07:28:38 - 07:55:21 2319
Cedarville 07:41:55 -71.6 Dark Up 67.0 165.3 Up 07:28:34 - 07:55:17 2262
Fall River/Burney 07:41:59 -71.8 Dark Up 67.3 162.1 Up 07:28:38 - 07:55:21 2225
Susanville 07:41:58 -72.6 Dark Up 68.0 163.4 Up 07:28:36 - 07:55:19 2154
Greenville 07:41:59 -72.8 Dark Up 68.2 162.5 Up 07:28:37 - 07:55:20 2128
Gimple 07:41:59 -72.8 Dark Up 68.2 162.7 Up 07:28:37 - 07:55:20 2127
Quincy 07:41:59 -73.0 Dark Up 68.4 162.4 Up 07:28:38 - 07:55:21 2107
Portola 07:41:57 -73.2 Dark Up 68.6 163.4 Up 07:28:36 - 07:55:19 2090
Reno 07:41:55 -73.6 Dark Up 69.0 164.9 Up 07:28:34 - 07:55:17 2056
Niwot 07:41:04 -70.9 Dark Up 67.7 202.4 Up 07:27:43 - 07:54:26 2021
Carson City 07:41:56 -73.9 Dark Up 69.4 164.7 Up 07:28:34 - 07:55:17 2019
Gardnerville 07:41:55 -74.2 Dark Up 69.6 164.7 Up 07:28:34 - 07:55:17 1993
Yerington 07:41:53 -74.2 Dark Up 69.7 166.2 Up 07:28:32 - 07:55:15 1992
Hawthorne 07:41:52 -74.7 Dark Up 70.2 167.4 Up 07:28:30 - 07:55:13 1939
Lee Vining 07:41:54 -75.2 Dark Up 70.7 165.6 Up 07:28:32 - 07:55:15 1885
Tonopah 07:41:47 -75.3 Dark Up 70.9 171.0 Up 07:28:25 - 07:55:08 1877
Bishop 07:41:52 -75.9 Dark Up 71.4 167.3 Up 07:28:30 - 07:55:13 1816
Beatty 07:41:46 -76.5 Dark Up 72.1 171.8 Up 07:28:24 - 07:55:07 1752
Lone Pine 07:41:51 -76.7 Dark Up 72.2 167.8 Up 07:28:29 - 07:55:12 1733
Indian Springs 07:41:42 -76.8 Dark Up 72.5 175.0 Up 07:28:21 - 07:55:04 1709
Henderson 07:41:40 -77.3 Dark Up 73.1 177.1 Up 07:28:18 - 07:55:01 1647
CPSLO 07:42:01 -77.5 Dark Up 72.9 158.8 Up 07:28:40 - 07:55:23 1622
Searchlight/Boulder City 07:41:40 -77.9 Dark Up 73.7 177.2 Up 07:28:18 - 07:55:01 1585
Patrick 07:41:36 -77.8 Dark Up 73.7 180.7 Up 07:28:14 - 07:54:57 1572
Laughlin/Bullhead City 07:41:39 -78.1 Dark Up 74.0 178.3 Up 07:28:17 - 07:55:00 1551
Kingman/Dolan Springs 07:41:37 -78.0 Dark Up 74.0 180.1 Up 07:28:15 - 07:54:58 1549
DCO 07:41:33 -78.0 Dark Up 74.0 183.1 Up 07:28:12 - 07:54:55 1534
Mohave Valley 07:41:39 -78.4 Dark Up 74.3 178.3 Up 07:28:17 - 07:55:00 1522
Lake Havasu City 07:41:38 -78.7 Dark Up 74.7 179.2 Up 07:28:16 - 07:54:59 1478
Wildwood 07:41:54 -79.1 Dark Up 74.5 164.0 Up 07:28:33 - 07:55:16 1473
Parker 07:41:38 -79.1 Dark Up 75.0 179.2 Up 07:28:16 - 07:54:59 1440
Idyllwild 07:41:47 -79.6 Dark Up 75.2 170.3 Up 07:28:26 - 07:55:09 1417
Blythe 07:41:39 -79.6 Dark Up 75.5 178.1 Up 07:28:18 - 07:55:01 1386
Calipatria 07:41:43 -80.2 Dark Up 76.0 174.5 Up 07:28:22 - 07:55:05 1341
Yuma 07:41:40 -80.6 Dark Up 76.5 177.8 Up 07:28:18 - 07:55:01 1287

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 07:42UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.78  78
Alnath         05:26:17.5 +28:36:23  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  9.5        77
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:41:07 UT

Marc W. Buie, Southwest Research Institute

RECON