RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1080:01444126 with event index number of 230569

Geocentric closest approach at 2019/12/12 09:59:30 UTC

J2000 position of star is 05:52:43.9 +19:10:25
Equinox of date position of star is 05:53:50.5 +19:10:36
Stellar brightness G=16.6, use SENSEUP=128
Star is 6 degrees from the moon. Moon is 100% 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 23.8 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 157 seconds.
The 1-sigma cross-track error in the shadow position is 1207 km.
The sky-plane scale is 16548.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2019/12/12 10:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.1 +07:24:33  0.4 11.78  16
Alhena         06:38:51.8 +16:22:50  1.9 11.06  17
PPM 121513     05:53:34.3 +19:52:17  6.4  0.70   6
PPM 121512     05:53:33.4 +19:09:12  8.5  0.09   6
463368         05:53:54.5 +19:10:36 16.6         7
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 23.9 km RECON observability=1.0 and success probability=13.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:58:11 -53.5 Dark Up 54.3 218.8 Up 09:44:38 - 10:11:45 -1716
Summerland 09:58:12 -53.7 Dark Up 54.5 218.4 Up 09:44:39 - 10:11:46 -1721
Penticton 09:58:11 -53.8 Dark Up 54.7 218.9 Up 09:44:38 - 10:11:45 -1751
Okanagan Falls 09:58:11 -53.9 Dark Up 54.8 219.0 Up 09:44:38 - 10:11:45 -1770
Oliver 09:58:11 -54.0 Dark Up 54.9 219.2 Up 09:44:37 - 10:11:44 -1786
Anarchist Mountain Observatory 09:58:10 -54.0 Dark Up 55.0 219.7 Up 09:44:37 - 10:11:44 -1802
Oroville 09:58:10 -54.0 Dark Up 55.1 219.6 Up 09:44:37 - 10:11:44 -1809
Tonasket 09:58:10 -54.2 Dark Up 55.3 219.8 Up 09:44:37 - 10:11:44 -1832
Okanogan 09:58:10 -54.4 Dark Up 55.6 219.9 Up 09:44:37 - 10:11:44 -1865
Brewster 09:58:11 -54.7 Dark Up 55.9 219.9 Up 09:44:37 - 10:11:44 -1892
Manson/Chelan 09:58:12 -55.0 Dark Up 56.2 219.5 Up 09:44:38 - 10:11:45 -1913
Entiat 09:58:11 -55.2 Dark Up 56.4 219.6 Up 09:44:38 - 10:11:45 -1935
Wenatchee 09:58:11 -55.4 Dark Up 56.6 219.7 Up 09:44:38 - 10:11:45 -1961
Ellensburg 09:58:12 -55.7 Dark Up 57.0 219.8 Up 09:44:38 - 10:11:45 -2002
Yakima 09:58:11 -56.0 Dark Up 57.4 220.2 Up 09:44:38 - 10:11:45 -2042
Toppenish/White Swan 09:58:11 -56.0 Dark Up 57.4 220.7 Up 09:44:37 - 10:11:44 -2063
Pasco 09:58:07 -55.3 Dark Up 57.0 222.7 Up 09:44:33 - 10:11:40 -2072
PNWRO 09:58:06 -55.3 Dark Up 57.0 223.3 Up 09:44:33 - 10:11:40 -2095
George/Umatilla 09:58:07 -55.6 Dark Up 57.3 222.7 Up 09:44:34 - 10:11:41 -2106
Goldendale 09:58:11 -56.5 Dark Up 58.1 220.6 Up 09:44:38 - 10:11:45 -2119
The Dalles 09:58:13 -56.9 Dark Up 58.4 220.2 Up 09:44:39 - 10:11:46 -2143
Maupin 09:58:12 -57.0 Dark Up 58.7 220.8 Up 09:44:38 - 10:11:45 -2184
Madras/Culver 09:58:12 -57.3 Dark Up 59.1 221.4 Up 09:44:38 - 10:11:45 -2240
Sisters 09:58:13 -57.8 Dark Up 59.6 221.0 Up 09:44:39 - 10:11:46 -2274
Redmond 09:58:11 -57.6 Dark Up 59.4 221.7 Up 09:44:38 - 10:11:45 -2276
Bend 09:58:12 -57.8 Dark Up 59.6 221.7 Up 09:44:38 - 10:11:45 -2298
Oregon Observatory 09:58:12 -57.9 Dark Up 59.8 221.7 Up 09:44:39 - 10:11:46 -2316
La Pine/Gilchrist 09:58:12 -58.1 Dark Up 60.0 221.8 Up 09:44:39 - 10:11:46 -2337
North Lake 09:58:10 -57.9 Dark Up 60.0 223.3 Up 09:44:37 - 10:11:44 -2379
Paisley 09:58:08 -58.0 Dark Up 60.2 224.5 Up 09:44:35 - 10:11:42 -2435
Chiloquin 09:58:12 -58.9 Dark Up 61.0 222.6 Up 09:44:39 - 10:11:46 -2451
Klamath Falls 09:58:12 -59.0 Dark Up 61.2 223.1 Up 09:44:39 - 10:11:46 -2486
Lakeview 09:58:07 -58.1 Dark Up 60.5 225.5 Up 09:44:34 - 10:11:41 -2486
Tulelake 09:58:11 -58.9 Dark Up 61.2 223.9 Up 09:44:37 - 10:11:44 -2513
Cedarville 09:58:06 -58.2 Dark Up 60.9 226.6 Up 09:44:33 - 10:11:40 -2553
Niwot 09:57:19 -48.0 Dark Up 52.2 247.4 Up 09:43:45 - 10:10:52 -2601
Fall River/Burney 09:58:10 -59.3 Dark Up 61.8 225.2 Up 09:44:37 - 10:11:44 -2606
Susanville 09:58:07 -59.0 Dark Up 61.9 227.3 Up 09:44:34 - 10:11:41 -2670
Greenville 09:58:08 -59.4 Dark Up 62.2 227.2 Up 09:44:34 - 10:11:41 -2699
Gimple 09:58:08 -59.3 Dark Up 62.2 227.3 Up 09:44:34 - 10:11:41 -2699
Quincy 09:58:08 -59.4 Dark Up 62.4 227.5 Up 09:44:34 - 10:11:41 -2720
Portola 09:58:06 -59.2 Dark Up 62.2 228.4 Up 09:44:33 - 10:11:40 -2732
Reno 09:58:04 -58.8 Dark Up 62.0 229.8 Up 09:44:30 - 10:11:37 -2758
Carson City 09:58:03 -58.9 Dark Up 62.2 230.4 Up 09:44:30 - 10:11:37 -2795
Yerington 09:58:01 -58.6 Dark Up 61.9 231.6 Up 09:44:28 - 10:11:35 -2814
Gardnerville 09:58:03 -59.0 Dark Up 62.3 230.8 Up 09:44:30 - 10:11:37 -2821
Hawthorne 09:57:59 -58.3 Dark Up 61.9 233.1 Up 09:44:26 - 10:11:33 -2860
Tonopah 09:57:54 -57.4 Dark Up 61.3 235.9 Up 09:44:20 - 10:11:27 -2904
Lee Vining 09:58:00 -58.9 Dark Up 62.6 233.2 Up 09:44:27 - 10:11:34 -2922
Bishop 09:57:57 -58.5 Dark Up 62.4 235.2 Up 09:44:24 - 10:11:31 -2982
Beatty 09:57:52 -57.4 Dark Up 61.6 238.3 Up 09:44:18 - 10:11:25 -3024
Indian Springs 09:57:48 -56.7 Dark Up 61.1 240.2 Up 09:44:14 - 10:11:21 -3053
Lone Pine 09:57:56 -58.5 Dark Up 62.7 236.9 Up 09:44:22 - 10:11:29 -3061
Henderson 09:57:45 -56.3 Dark Up 60.8 242.0 Up 09:44:12 - 10:11:19 -3105
Patrick 09:57:41 -55.5 Dark Up 60.3 244.3 Up 09:44:07 - 10:11:14 -3165
Searchlight/Boulder City 09:57:44 -56.4 Dark Up 61.1 242.9 Up 09:44:11 - 10:11:18 -3166
Kingman/Dolan Springs 09:57:41 -55.7 Dark Up 60.6 244.4 Up 09:44:08 - 10:11:15 -3190
DCO 09:57:38 -55.0 Dark Up 59.9 245.6 Up 09:44:04 - 10:11:11 -3193
Laughlin/Bullhead City 09:57:43 -56.1 Dark Up 60.9 243.8 Up 09:44:09 - 10:11:16 -3196
CPSLO 09:58:04 -60.9 Dark Up 65.1 235.3 Up 09:44:30 - 10:11:37 -3209
Mohave Valley 09:57:42 -56.2 Dark Up 61.1 244.3 Up 09:44:09 - 10:11:16 -3225
Lake Havasu City 09:57:41 -56.1 Dark Up 61.0 245.2 Up 09:44:08 - 10:11:15 -3266
Parker 09:57:41 -56.1 Dark Up 61.2 245.9 Up 09:44:08 - 10:11:15 -3304
Wildwood 09:57:56 -59.6 Dark Up 64.3 240.5 Up 09:44:22 - 10:11:29 -3331
Idyllwild 09:57:49 -58.1 Dark Up 63.1 243.6 Up 09:44:16 - 10:11:23 -3361
Blythe 09:57:41 -56.4 Dark Up 61.6 246.4 Up 09:44:08 - 10:11:15 -3362
Calipatria 09:57:45 -57.3 Dark Up 62.5 246.1 Up 09:44:11 - 10:11:18 -3420
Yuma 09:57:41 -56.6 Dark Up 62.0 247.9 Up 09:44:08 - 10:11:15 -3461

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, (2019/12/12 10:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.78  16
Alhena         06:37:42.8 +16:23:57  1.9 11.06  17
PPM 121513     05:52:23.4 +19:52:04  6.4  0.70   6
PPM 121512     05:52:22.8 +19:08:59  8.5  0.09   6
463368         05:52:43.9 +19:10:25 16.6         6
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:39:09 UT

Marc W. Buie, Southwest Research Institute

RECON