RECON: TNO occultation with 363330

Event between (363330) 02PQ145 and star UC4-393-132709 with event index number of 149011

Geocentric closest approach at 2018/09/01 09:49:43 UTC

J2000 position of star is 21:55:27.7 -11:34:17
Equinox of date position of star is 21:56:25.3 -11:29:09
Stellar brightness R=14.9, use SENSEUP=128
Star is 81 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 45.6 AU from the Sun and 44.6 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 118 seconds.
The 1-sigma cross-track error in the shadow position is 1982 km.
The sky-plane scale is 32369.4 km/arcsec.

The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 19.5 sec chord
Diameter=195.4 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 363330, (2018/09/01 09:50UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:40.7 -29:31:22  1.2 23.13  73
PPM 239401     21:50:41.4 -12:38:06  6.5  1.82  82
PPM 239519     21:56:02.0 -11:52:53  8.2  0.41  81
PPM 239512     21:55:26.3 -11:35:24  9.2  0.27  81
363330         21:56:27.7 -11:28:57 14.9        80
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 19.1 km RECON observability=1.0 and success probability=12.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:46:46 -28.0 Dark Up 20.5 221.0 Low 09:36:24 - 09:57:08 3764
Tonasket 09:46:46 -28.2 Dark Up 20.6 221.1 Low 09:36:24 - 09:57:08 3747
Okanogan 09:46:45 -28.6 Dark Up 21.0 221.0 Low 09:36:23 - 09:57:07 3726
Brewster 09:46:46 -28.9 Dark Up 21.3 220.9 Low 09:36:24 - 09:57:08 3712
Manson/Chelan 09:46:46 -29.2 Dark Up 21.6 220.6 Low 09:36:24 - 09:57:08 3707
Entiat 09:46:46 -29.4 Dark Up 21.8 220.6 Low 09:36:24 - 09:57:08 3693
Wenatchee 09:46:46 -29.7 Dark Up 22.0 220.6 Low 09:36:24 - 09:57:08 3677
Ellensburg 09:46:46 -30.1 Dark Up 22.4 220.5 Low 09:36:24 - 09:57:08 3653
Yakima 09:46:45 -30.4 Dark Up 22.7 220.6 Low 09:36:23 - 09:57:07 3623
Toppenish/White Swan 09:46:45 -30.6 Dark Up 22.8 220.8 Low 09:36:23 - 09:57:07 3601
Goldendale 09:46:46 -31.2 Dark Up 23.4 220.6 Low 09:36:24 - 09:57:08 3572
The Dalles 09:46:46 -31.5 Dark Up 23.8 220.3 Low 09:36:24 - 09:57:08 3566
Pasco 09:46:42 -30.2 Dark Up 22.3 222.0 Low 09:36:20 - 09:57:04 3554
George/Umatilla 09:46:42 -30.6 Dark Up 22.7 221.9 Low 09:36:20 - 09:57:04 3535
Maupin 09:46:46 -31.8 Dark Up 24.0 220.5 Low 09:36:24 - 09:57:08 3531
PNWRO 09:46:42 -30.3 Dark Up 22.4 222.3 Low 09:36:20 - 09:57:04 3528
Madras/Culver 09:46:45 -32.3 Dark Up 24.5 220.6 Low 09:36:23 - 09:57:07 3490
Sisters 09:46:46 -32.8 Dark Up 24.9 220.3 Low 09:36:24 - 09:57:08 3478
Redmond 09:46:46 -32.7 Dark Up 24.8 220.7 Low 09:36:24 - 09:57:08 3464
Bend 09:46:45 -32.9 Dark Up 25.0 220.6 Low 09:36:23 - 09:57:07 3451
Oregon Observatory 09:46:45 -33.1 Dark Up 25.2 220.5 Low 09:36:23 - 09:57:07 3442
La Pine/Gilchrist 09:46:46 -33.3 Dark Up 25.4 220.5 Low 09:36:24 - 09:57:08 3428
North Lake 09:46:44 -33.4 Dark Up 25.4 221.2 Low 09:36:22 - 09:57:06 3375
Chiloquin 09:46:45 -34.4 Dark Up 26.4 220.6 Low 09:36:23 - 09:57:07 3352
Klamath Falls 09:46:45 -34.7 Dark Up 26.6 220.7 Low 09:36:23 - 09:57:07 3322
Paisley 09:46:42 -33.8 Dark Up 25.7 221.8 Low 09:36:20 - 09:57:04 3319
Tulelake 09:46:44 -34.8 Dark Up 26.7 221.1 Low 09:36:22 - 09:57:06 3290
Lakeview 09:46:41 -34.1 Dark Up 25.9 222.1 Low 09:36:19 - 09:57:03 3273
Fall River/Burney 09:46:44 -35.5 Dark Up 27.3 221.5 Low 09:36:22 - 09:57:06 3214
Cedarville 09:46:41 -34.6 Dark Up 26.3 222.5 Low 09:36:19 - 09:57:03 3214
Susanville 09:46:41 -35.8 Dark Up 27.4 222.4 Low 09:36:19 - 09:57:03 3138
Greenville 09:46:42 -36.1 Dark Up 27.8 222.2 Low 09:36:20 - 09:57:04 3126
Gimple 09:46:42 -36.1 Dark Up 27.7 222.3 Low 09:36:20 - 09:57:04 3122
Quincy 09:46:41 -36.3 Dark Up 27.9 222.3 Low 09:36:19 - 09:57:03 3109
Portola 09:46:40 -36.2 Dark Up 27.8 222.8 Low 09:36:18 - 09:57:02 3082
Reno 09:46:38 -36.1 Dark Up 27.6 223.5 Low 09:36:16 - 09:57:00 3038
Carson City 09:46:38 -36.4 Dark Up 27.9 223.6 Low 09:36:16 - 09:57:00 3008
Gardnerville 09:46:38 -36.6 Dark Up 28.0 223.8 Low 09:36:16 - 09:57:00 2985
Yerington 09:46:37 -36.3 Dark Up 27.7 224.3 Low 09:36:15 - 09:56:59 2970
Hawthorne 09:46:35 -36.5 Dark Up 27.7 224.9 Low 09:36:13 - 09:56:57 2913
Lee Vining 09:46:37 -37.2 Dark Up 28.4 224.7 Low 09:36:15 - 09:56:59 2881
Tonopah 09:46:31 -36.2 Dark Up 27.3 226.4 Low 09:36:09 - 09:56:53 2824
Bishop 09:46:34 -37.3 Dark Up 28.4 225.6 Low 09:36:12 - 09:56:56 2805
Lone Pine 09:46:33 -37.8 Dark Up 28.7 226.2 Low 09:36:11 - 09:56:55 2727
Beatty 09:46:30 -36.9 Dark Up 27.8 227.2 Low 09:36:08 - 09:56:52 2708
CPSLO 09:46:38 -40.0 Dark Up 31.1 224.4 Up 09:36:16 - 09:57:00 2705
Indian Springs 09:46:27 -36.6 Dark Up 27.4 228.3 Low 09:36:05 - 09:56:49 2643
Niwot 09:46:08 -28.4 Dark Up 18.8 235.7 Really Low 09:35:46 - 09:56:30 2615
Henderson 09:46:25 -36.7 Dark Up 27.3 229.1 Low 09:36:03 - 09:56:47 2571
Wildwood 09:46:34 -40.0 Dark Up 30.8 226.7 Up 09:36:12 - 09:56:56 2525
Searchlight/Boulder City 09:46:25 -37.1 Dark Up 27.6 229.4 Low 09:36:03 - 09:56:47 2518
Laughlin/Bullhead City 09:46:23 -37.1 Dark Up 27.6 229.8 Low 09:36:01 - 09:56:45 2479
Patrick 09:46:22 -36.6 Dark Up 27.0 230.3 Low 09:36:00 - 09:56:44 2476
Kingman/Dolan Springs 09:46:22 -36.8 Dark Up 27.3 230.2 Low 09:36:00 - 09:56:44 2463
Mohave Valley 09:46:23 -37.3 Dark Up 27.8 229.9 Low 09:36:01 - 09:56:45 2454
Idyllwild 09:46:28 -39.3 Dark Up 29.9 228.5 Low 09:36:06 - 09:56:50 2425
DCO 09:46:20 -36.4 Dark Up 26.8 231.0 Low 09:35:58 - 09:56:42 2424
Lake Havasu City 09:46:23 -37.5 Dark Up 27.9 230.3 Low 09:36:01 - 09:56:45 2409
Parker 09:46:22 -37.7 Dark Up 28.1 230.4 Low 09:36:00 - 09:56:44 2376
Blythe 09:46:23 -38.3 Dark Up 28.6 230.4 Low 09:36:01 - 09:56:45 2339
Calipatria 09:46:25 -39.2 Dark Up 29.5 229.8 Low 09:36:03 - 09:56:47 2328
Yuma 09:46:23 -39.0 Dark Up 29.2 230.8 Low 09:36:01 - 09:56:45 2256

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 363330, (2018/09/01 09:50UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 23.13  73
PPM 239401     21:49:41.0 -12:43:22  6.5  1.82  82
PPM 239519     21:55:01.9 -11:58:13  8.2  0.41  81
PPM 239512     21:54:26.2 -11:40:44  9.2  0.27  81
363330         21:55:27.7 -11:34:17 14.9        81
Positions are for J2000

Event circumstances last updated at 2017/12/05 18:54:41 UT

Marc W. Buie, Southwest Research Institute

RECON