RECON: TNO occultation with 363401

Event between (363401) 03LB7 and star UC4-333-088313 with event index number of 114653

Geocentric closest approach at 2018/05/02 08:53:33 UTC

J2000 position of star is 16:53:20.7 -23:31:43
Equinox of date position of star is 16:54:25.8 -23:33:25
Stellar brightness R=14.0, use SENSEUP=64
Star is 8 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 41.2 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 19.7 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 619 seconds.
The 1-sigma cross-track error in the shadow position is 4319 km.
The sky-plane scale is 29272.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 14.0 sec chord
Diameter=112.4 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 363401, (2018/05/02 08:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.1 -26:28:16  0.9  6.15   9
23Tau Sco      16:37:01.6 -28:15:09  2.8  6.11  11
26 Oph         17:01:17.0 -25:00:56  5.8  2.13  10
PPM 266128     16:55:57.5 -23:32:28  6.9  0.34   8
PPM 266077     16:53:57.3 -23:20:11  9.4  0.25   8
363401         16:54:27.3 -23:33:27 14.0         8
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 11.9 km RECON observability=0.7 and success probability=3.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:55:10 -24.3 Dark Up 15.6 162.2 Really Low 08:40:10 - 09:10:10 -1289
Tonasket 08:55:10 -24.5 Dark Up 15.8 162.2 Really Low 08:40:10 - 09:10:10 -1298
Okanogan 08:55:11 -24.8 Dark Up 16.1 162.0 Really Low 08:40:11 - 09:10:11 -1313
Brewster 08:55:12 -25.1 Dark Up 16.4 161.8 Really Low 08:40:12 - 09:10:12 -1327
Manson/Chelan 08:55:13 -25.4 Dark Up 16.5 161.4 Really Low 08:40:13 - 09:10:13 -1341
Entiat 08:55:14 -25.6 Dark Up 16.7 161.3 Really Low 08:40:14 - 09:10:14 -1351
Wenatchee 08:55:15 -25.9 Dark Up 16.9 161.2 Really Low 08:40:15 - 09:10:15 -1363
Ellensburg 08:55:16 -26.3 Dark Up 17.2 161.0 Really Low 08:40:16 - 09:10:16 -1383
Pasco 08:55:12 -26.8 Dark Up 18.2 162.2 Really Low 08:40:12 - 09:10:12 -1391
PNWRO 08:55:11 -27.0 Dark Up 18.5 162.4 Really Low 08:40:11 - 09:10:11 -1398
Yakima 08:55:17 -26.7 Dark Up 17.6 160.9 Really Low 08:40:17 - 09:10:17 -1400
Toppenish/White Swan 08:55:16 -26.9 Dark Up 17.9 161.1 Really Low 08:40:16 - 09:10:16 -1407
George/Umatilla 08:55:13 -27.2 Dark Up 18.5 162.0 Really Low 08:40:13 - 09:10:13 -1409
Goldendale 08:55:18 -27.5 Dark Up 18.3 160.6 Really Low 08:40:18 - 09:10:18 -1438
The Dalles 08:55:20 -27.8 Dark Up 18.4 160.3 Really Low 08:40:20 - 09:10:20 -1454
Maupin 08:55:20 -28.2 Dark Up 18.8 160.3 Really Low 08:40:20 - 09:10:20 -1470
Niwot 08:54:20 -28.2 Dark Up 26.2 175.2 Low 08:39:20 - 09:09:20 -1485
Madras/Culver 08:55:21 -28.7 Dark Up 19.3 160.2 Really Low 08:40:21 - 09:10:21 -1496
Redmond 08:55:21 -29.1 Dark Up 19.7 160.1 Really Low 08:40:21 - 09:10:21 -1513
Sisters 08:55:23 -29.1 Dark Up 19.5 159.8 Really Low 08:40:23 - 09:10:23 -1519
Bend 08:55:22 -29.3 Dark Up 19.8 160.0 Really Low 08:40:22 - 09:10:22 -1525
Oregon Observatory 08:55:23 -29.5 Dark Up 20.0 159.8 Really Low 08:40:23 - 09:10:23 -1536
La Pine/Gilchrist 08:55:23 -29.7 Dark Up 20.1 159.7 Low 08:40:23 - 09:10:23 -1547
North Lake 08:55:21 -30.0 Dark Up 20.7 160.2 Low 08:40:21 - 09:10:21 -1556
Paisley 08:55:21 -30.5 Dark Up 21.3 160.5 Low 08:40:21 - 09:10:21 -1577
Lakeview 08:55:21 -30.9 Dark Up 21.8 160.6 Low 08:40:21 - 09:10:21 -1598
Chiloquin 08:55:26 -30.9 Dark Up 21.1 159.3 Low 08:40:26 - 09:10:26 -1607
Klamath Falls 08:55:26 -31.2 Dark Up 21.4 159.3 Low 08:40:26 - 09:10:26 -1622
Cedarville 08:55:21 -31.5 Dark Up 22.5 160.7 Low 08:40:21 - 09:10:21 -1628
Tulelake 08:55:25 -31.4 Dark Up 21.8 159.5 Low 08:40:25 - 09:10:25 -1630
Fall River/Burney 08:55:25 -32.2 Dark Up 22.6 159.5 Low 08:40:25 - 09:10:25 -1675
Susanville 08:55:24 -32.7 Dark Up 23.4 160.1 Low 08:40:24 - 09:10:24 -1694
Gimple 08:55:25 -33.0 Dark Up 23.6 159.9 Low 08:40:25 - 09:10:25 -1712
Greenville 08:55:25 -33.0 Dark Up 23.6 159.8 Low 08:40:25 - 09:10:25 -1714
Portola 08:55:24 -33.2 Dark Up 24.0 160.2 Low 08:40:24 - 09:10:24 -1722
Quincy 08:55:25 -33.2 Dark Up 23.8 159.8 Low 08:40:25 - 09:10:25 -1725
Reno 08:55:21 -33.3 Dark Up 24.5 160.8 Low 08:40:21 - 09:10:21 -1725
Yerington 08:55:19 -33.7 Dark Up 25.1 161.3 Low 08:40:19 - 09:10:19 -1743
Carson City 08:55:21 -33.7 Dark Up 24.8 160.7 Low 08:40:21 - 09:10:21 -1744
Gardnerville 08:55:21 -33.9 Dark Up 25.0 160.7 Low 08:40:21 - 09:10:21 -1756
Hawthorne 08:55:17 -34.0 Dark Up 25.7 161.8 Low 08:40:17 - 09:10:17 -1758
Tonopah 08:55:12 -34.1 Dark Up 26.5 163.1 Low 08:40:12 - 09:10:12 -1759
Lee Vining 08:55:20 -34.7 Dark Up 26.1 161.2 Low 08:40:20 - 09:10:20 -1799
Beatty 08:55:11 -35.1 Dark Up 27.7 163.3 Low 08:40:11 - 09:10:11 -1817
Indian Springs 08:55:06 -35.1 Dark Up 28.3 164.4 Low 08:40:06 - 09:10:06 -1817
Bishop 08:55:17 -35.1 Dark Up 26.9 161.8 Low 08:40:17 - 09:10:17 -1819
Henderson 08:55:04 -35.3 Dark Up 28.9 165.0 Low 08:40:04 - 09:10:04 -1836
Patrick 08:54:59 -35.5 Dark Up 29.7 166.0 Low 08:39:59 - 09:09:59 -1855
Lone Pine 08:55:17 -35.7 Dark Up 27.7 162.0 Low 08:40:17 - 09:10:17 -1857
DCO 08:54:56 -35.6 Dark Up 30.2 166.7 Up 08:39:56 - 09:09:56 -1862
Searchlight/Boulder City 08:55:04 -35.8 Dark Up 29.5 165.0 Low 08:40:04 - 09:10:04 -1869
Kingman/Dolan Springs 08:55:00 -35.8 Dark Up 29.9 165.8 Low 08:40:00 - 09:10:00 -1871
Laughlin/Bullhead City 08:55:02 -36.0 Dark Up 29.8 165.3 Low 08:40:02 - 09:10:02 -1881
Mohave Valley 08:55:02 -36.2 Dark Up 30.1 165.2 Up 08:40:02 - 09:10:02 -1897
Lake Havasu City 08:55:02 -36.5 Dark Up 30.5 165.4 Up 08:40:02 - 09:10:02 -1917
Parker 08:55:02 -36.8 Dark Up 30.9 165.4 Up 08:40:02 - 09:10:02 -1938
Blythe 08:55:03 -37.4 Dark Up 31.3 165.0 Up 08:40:03 - 09:10:03 -1975
CPSLO 08:55:28 -37.6 Dark Up 28.2 159.3 Low 08:40:28 - 09:10:28 -1983
Idyllwild 08:55:13 -38.0 Dark Up 30.7 162.9 Up 08:40:13 - 09:10:13 -2005
Wildwood 08:55:21 -38.2 Dark Up 29.9 161.1 Low 08:40:21 - 09:10:21 -2017
Calipatria 08:55:08 -38.2 Dark Up 31.6 164.0 Up 08:40:08 - 09:10:08 -2022
Yuma 08:55:04 -38.3 Dark Up 32.2 164.8 Up 08:40:04 - 09:10:04 -2034

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 363401, (2018/05/02 08:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.15   9
23Tau Sco      16:35:53.0 -28:12:58  2.8  6.11  11
26 Oph         17:00:09.6 -24:59:22  5.8  2.13  10
PPM 266128     16:54:50.8 -23:30:45  6.9  0.34   8
PPM 266077     16:52:50.8 -23:18:26  9.4  0.25   8
363401         16:53:20.7 -23:31:43 14.0         8
Positions are for J2000

Event circumstances last updated at 2017/12/02 17:29:40 UT

Marc W. Buie, Southwest Research Institute

RECON