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 16:54:24.5 -23:33:23
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 453 seconds.
The 1-sigma cross-track error in the shadow position is 3296 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 2.0 sigma about the mid-time.
The median site spacing is 12.4 km RECON observability=0.7 and success probability=4.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:55:09 -24.3 Dark Up 15.6 162.2 Really Low 08:40:09 - 09:10:09 -1285
Tonasket 08:55:09 -24.5 Dark Up 15.8 162.2 Really Low 08:40:09 - 09:10:09 -1293
Okanogan 08:55:10 -24.9 Dark Up 16.1 162.0 Really Low 08:40:10 - 09:10:10 -1309
Brewster 08:55:10 -25.1 Dark Up 16.4 161.8 Really Low 08:40:10 - 09:10:10 -1322
Manson/Chelan 08:55:12 -25.4 Dark Up 16.5 161.4 Really Low 08:40:12 - 09:10:12 -1336
Entiat 08:55:13 -25.6 Dark Up 16.7 161.3 Really Low 08:40:13 - 09:10:13 -1346
Wenatchee 08:55:13 -25.9 Dark Up 16.9 161.2 Really Low 08:40:13 - 09:10:13 -1358
Ellensburg 08:55:14 -26.3 Dark Up 17.2 161.0 Really Low 08:40:14 - 09:10:14 -1378
Pasco 08:55:10 -26.8 Dark Up 18.2 162.2 Really Low 08:40:10 - 09:10:10 -1386
PNWRO 08:55:10 -27.0 Dark Up 18.5 162.4 Really Low 08:40:10 - 09:10:10 -1393
Yakima 08:55:15 -26.7 Dark Up 17.6 160.9 Really Low 08:40:15 - 09:10:15 -1396
Toppenish/White Swan 08:55:15 -26.9 Dark Up 17.9 161.1 Really Low 08:40:15 - 09:10:15 -1402
George/Umatilla 08:55:11 -27.2 Dark Up 18.5 162.0 Really Low 08:40:11 - 09:10:11 -1404
Goldendale 08:55:17 -27.5 Dark Up 18.3 160.6 Really Low 08:40:17 - 09:10:17 -1432
The Dalles 08:55:19 -27.8 Dark Up 18.4 160.3 Really Low 08:40:19 - 09:10:19 -1449
Maupin 08:55:19 -28.2 Dark Up 18.8 160.3 Really Low 08:40:19 - 09:10:19 -1465
Niwot 08:54:19 -28.2 Dark Up 26.2 175.2 Low 08:39:19 - 09:09:19 -1480
Madras/Culver 08:55:20 -28.7 Dark Up 19.3 160.2 Really Low 08:40:20 - 09:10:20 -1490
Redmond 08:55:20 -29.1 Dark Up 19.7 160.1 Really Low 08:40:20 - 09:10:20 -1507
Sisters 08:55:21 -29.1 Dark Up 19.5 159.7 Really Low 08:40:21 - 09:10:21 -1513
Bend 08:55:21 -29.3 Dark Up 19.8 160.0 Really Low 08:40:21 - 09:10:21 -1520
Oregon Observatory 08:55:21 -29.5 Dark Up 20.0 159.8 Really Low 08:40:21 - 09:10:21 -1530
La Pine/Gilchrist 08:55:22 -29.7 Dark Up 20.1 159.7 Low 08:40:22 - 09:10:22 -1540
North Lake 08:55:20 -30.0 Dark Up 20.7 160.2 Low 08:40:20 - 09:10:20 -1550
Paisley 08:55:20 -30.5 Dark Up 21.3 160.5 Low 08:40:20 - 09:10:20 -1571
Lakeview 08:55:19 -30.9 Dark Up 21.8 160.6 Low 08:40:19 - 09:10:19 -1592
Chiloquin 08:55:25 -30.9 Dark Up 21.1 159.3 Low 08:40:25 - 09:10:25 -1600
Klamath Falls 08:55:25 -31.2 Dark Up 21.4 159.3 Low 08:40:25 - 09:10:25 -1616
Cedarville 08:55:19 -31.5 Dark Up 22.5 160.7 Low 08:40:19 - 09:10:19 -1621
Tulelake 08:55:24 -31.4 Dark Up 21.8 159.5 Low 08:40:24 - 09:10:24 -1624
Fall River/Burney 08:55:24 -32.2 Dark Up 22.6 159.5 Low 08:40:24 - 09:10:24 -1669
Susanville 08:55:22 -32.7 Dark Up 23.4 160.1 Low 08:40:22 - 09:10:22 -1688
Gimple 08:55:24 -33.0 Dark Up 23.6 159.9 Low 08:40:24 - 09:10:24 -1706
Greenville 08:55:24 -33.0 Dark Up 23.6 159.8 Low 08:40:24 - 09:10:24 -1708
Portola 08:55:22 -33.2 Dark Up 24.0 160.2 Low 08:40:22 - 09:10:22 -1716
Reno 08:55:20 -33.3 Dark Up 24.5 160.8 Low 08:40:20 - 09:10:20 -1718
Quincy 08:55:24 -33.2 Dark Up 23.8 159.8 Low 08:40:24 - 09:10:24 -1718
Yerington 08:55:18 -33.7 Dark Up 25.1 161.3 Low 08:40:18 - 09:10:18 -1736
Carson City 08:55:20 -33.7 Dark Up 24.8 160.7 Low 08:40:20 - 09:10:20 -1737
Gardnerville 08:55:20 -33.9 Dark Up 25.0 160.7 Low 08:40:20 - 09:10:20 -1750
Hawthorne 08:55:16 -34.0 Dark Up 25.7 161.8 Low 08:40:16 - 09:10:16 -1752
Tonopah 08:55:10 -34.1 Dark Up 26.5 163.1 Low 08:40:10 - 09:10:10 -1753
Lee Vining 08:55:18 -34.7 Dark Up 26.1 161.2 Low 08:40:18 - 09:10:18 -1792
Beatty 08:55:09 -35.1 Dark Up 27.7 163.3 Low 08:40:09 - 09:10:09 -1811
Indian Springs 08:55:05 -35.1 Dark Up 28.2 164.4 Low 08:40:05 - 09:10:05 -1811
Bishop 08:55:16 -35.1 Dark Up 26.9 161.8 Low 08:40:16 - 09:10:16 -1813
Henderson 08:55:03 -35.3 Dark Up 28.9 165.0 Low 08:40:03 - 09:10:03 -1831
Patrick 08:54:58 -35.5 Dark Up 29.7 166.0 Low 08:39:58 - 09:09:58 -1850
Lone Pine 08:55:15 -35.7 Dark Up 27.7 162.0 Low 08:40:15 - 09:10:15 -1851
Searchlight/Boulder City 08:55:03 -35.8 Dark Up 29.5 165.0 Low 08:40:03 - 09:10:03 -1863
Kingman/Dolan Springs 08:54:59 -35.8 Dark Up 29.9 165.8 Low 08:39:59 - 09:09:59 -1866
DCO 08:54:42 -35.6 Dark Up 30.2 166.6 Up 08:39:42 - 09:09:42 -1874
Laughlin/Bullhead City 08:55:02 -36.0 Dark Up 29.8 165.3 Low 08:40:02 - 09:10:02 -1876
Mohave Valley 08:55:02 -36.3 Dark Up 30.1 165.2 Up 08:40:02 - 09:10:02 -1892
Lake Havasu City 08:55:01 -36.5 Dark Up 30.5 165.4 Up 08:40:01 - 09:10:01 -1912
Parker 08:55:01 -36.8 Dark Up 30.9 165.4 Up 08:40:01 - 09:10:01 -1933
Blythe 08:55:02 -37.4 Dark Up 31.3 165.0 Up 08:40:02 - 09:10:02 -1971
CPSLO 08:55:27 -37.6 Dark Up 28.2 159.3 Low 08:40:27 - 09:10:27 -1977
Idyllwild 08:55:11 -38.0 Dark Up 30.7 162.9 Up 08:40:11 - 09:10:11 -1999
Wildwood 08:55:19 -38.2 Dark Up 29.9 161.0 Low 08:40:19 - 09:10:19 -2012
Calipatria 08:55:06 -38.2 Dark Up 31.6 164.0 Up 08:40:06 - 09:10:06 -2017
Yuma 08:55:03 -38.3 Dark Up 32.2 164.8 Up 08:40:03 - 09:10:03 -2029

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 2017/08/01 16:37:06 UT

Marc W. Buie, Southwest Research Institute

RECON